:root {
    --blue: #00a8e8;
    --blue-dark: #0077b6;
    --blue-light: #48cae4;
    --dark: #0a0a0f;
    --dark-card: #12121a;
    --dark-lighter: #1a1a24;
    --white: #ffffff;
    --gray: #a0a0a0;
    --gray-light: #e0e0e0;
}

/* ============================================
   INTRO ANIMATION
   ============================================ */
.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #001825 0%, #002a4a 100%);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.intro-overlay.fade-out {
    animation: introFadeOut 1.5s ease-out forwards;
    pointer-events: none;
}

@keyframes introFadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
}

/* Intro content */
.intro-content {
    position: relative;
    z-index: 10;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 800px;
    padding: 0 24px;
}

/* Text */
.intro-text {
    font-size: clamp(0.8rem, 1.5vw, 0.95rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.3em;
    margin-bottom: 30px;
    opacity: 0;
    animation: textFadeIn 1s ease-out 0.3s forwards;
}

@keyframes textFadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Logo */
.intro-logo {
    opacity: 0;
    transform: scale(0.8);
    animation: logoFadeIn 1.2s ease-out 1s forwards;
}

.intro-logo img {
    max-width: 400px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(0, 168, 232, 0.5));
}

@keyframes logoFadeIn {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

/* Responsive */
@media (max-width: 768px) {
    .intro-logo img {
        max-width: 280px;
    }
}

/* Hide intro after animation */
.intro-overlay.hidden {
    display: none;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.blue { color: var(--blue); }

/* ============================================
   WATER ANIMATION EFFECTS
   ============================================ */

/* Floating Water Droplets Background */
.water-droplets {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.droplet {
    position: absolute;
    background: radial-gradient(circle at 30% 30%, rgba(0, 168, 232, 0.4), rgba(0, 168, 232, 0.1));
    border-radius: 50%;
    animation: floatUp linear infinite;
    opacity: 0;
}

@keyframes floatUp {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

/* Water Ripple Effect */
.water-ripple {
    position: absolute;
    width: 600px;
    height: 600px;
    border: 2px solid rgba(0, 168, 232, 0.3);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: rippleExpand 4s ease-out infinite;
}

.water-ripple.delay-1 { animation-delay: 1.3s; }
.water-ripple.delay-2 { animation-delay: 2.6s; }

@keyframes rippleExpand {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(2); opacity: 0; }
}

/* Floating Bubbles */
.floating-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.bubble {
    position: absolute;
    bottom: -100px;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.3), rgba(0, 168, 232, 0.1));
    border-radius: 50%;
    animation: bubbleRise 8s ease-in infinite;
}

.bubble:nth-child(1) { left: 10%; width: 40px; height: 40px; animation-delay: 0s; }
.bubble:nth-child(2) { left: 30%; width: 20px; height: 20px; animation-delay: 1s; }
.bubble:nth-child(3) { left: 50%; width: 35px; height: 35px; animation-delay: 2s; }
.bubble:nth-child(4) { left: 70%; width: 25px; height: 25px; animation-delay: 3s; }
.bubble:nth-child(5) { left: 90%; width: 30px; height: 30px; animation-delay: 4s; }

@keyframes bubbleRise {
    0% { transform: translateY(0) scale(0); opacity: 0; }
    10% { opacity: 0.6; transform: scale(1); }
    90% { opacity: 0.6; }
    100% { transform: translateY(-100vh) scale(0.5); opacity: 0; }
}

/* Wave Transitions */
.wave-transition {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    color: var(--dark-card);
}

.wave-transition svg {
    width: 100%;
    height: 100%;
}

/* Water Flow Transition */
.water-flow-transition {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    overflow: hidden;
}

.water-stream {
    position: absolute;
    bottom: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 232, 0.3), rgba(0, 168, 232, 0.5), rgba(0, 168, 232, 0.3), transparent);
    animation: streamFlow 3s linear infinite;
}

.water-stream.delay { animation-delay: 1.5s; opacity: 0.5; }

@keyframes streamFlow {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

/* Splash Transition */
.splash-transition {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    color: #e8f4f8;
}

.splash-transition svg {
    width: 100%;
    height: 100%;
}

/* Rain Effect */
.rain-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.rain-drop {
    position: absolute;
    top: -50px;
    width: 2px;
    height: 30px;
    background: linear-gradient(180deg, transparent, rgba(0, 168, 232, 0.6));
    animation: rainFall 1s linear infinite;
}

.rain-drop:nth-child(1) { left: 5%; animation-delay: 0s; animation-duration: 0.8s; }
.rain-drop:nth-child(2) { left: 15%; animation-delay: 0.2s; animation-duration: 1s; }
.rain-drop:nth-child(3) { left: 25%; animation-delay: 0.4s; animation-duration: 0.9s; }
.rain-drop:nth-child(4) { left: 40%; animation-delay: 0.1s; animation-duration: 1.1s; }
.rain-drop:nth-child(5) { left: 55%; animation-delay: 0.3s; animation-duration: 0.85s; }
.rain-drop:nth-child(6) { left: 70%; animation-delay: 0.5s; animation-duration: 0.95s; }
.rain-drop:nth-child(7) { left: 85%; animation-delay: 0.15s; animation-duration: 1.05s; }
.rain-drop:nth-child(8) { left: 95%; animation-delay: 0.35s; animation-duration: 0.9s; }

@keyframes rainFall {
    0% { transform: translateY(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100vh); opacity: 0; }
}

/* Drip Transition */
.drip-transition {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    display: flex;
    justify-content: space-around;
    pointer-events: none;
}

.drip {
    width: 20px;
    height: 30px;
    background: var(--dark-card);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: dripFall 2s ease-in infinite;
}

.drip:nth-child(1) { animation-delay: 0s; }
.drip:nth-child(2) { animation-delay: 0.6s; }
.drip:nth-child(3) { animation-delay: 1.2s; }

@keyframes dripFall {
    0%, 100% { transform: translateY(0) scaleY(1); }
    50% { transform: translateY(30px) scaleY(1.5); }
}

/* Water Surface Effect */
.water-surface {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.surface-wave {
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(0, 168, 232, 0.03) 20%,
        rgba(0, 168, 232, 0.05) 40%,
        rgba(0, 168, 232, 0.03) 60%,
        transparent 100%);
    animation: surfaceWave 8s ease-in-out infinite;
}

.surface-wave.delay-1 { animation-delay: 4s; opacity: 0.5; }

@keyframes surfaceWave {
    0%, 100% { transform: translateX(0) translateY(0); }
    50% { transform: translateX(25%) translateY(10px); }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    transition-delay: var(--delay, 0s);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Card Water Effect */
.card-water-effect {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, transparent, rgba(0, 168, 232, 0.1));
    transition: height 0.5s ease;
    border-radius: 0 0 16px 16px;
    z-index: 0;
}

.benefit-card:hover .card-water-effect {
    height: 100%;
}

/* Tech Card Shine */
.tech-card-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.tech-card:hover .tech-card-shine {
    left: 100%;
}

/* Image Glow */
.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.3) 0%, transparent 70%);
    filter: blur(40px);
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

/* Image Water Ring */
.image-water-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    border: 3px solid rgba(0, 168, 232, 0.3);
    border-radius: 50%;
    animation: ringPulse 2s ease-out infinite;
}

@keyframes ringPulse {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

/* Water Shine Effect */
.water-shine {
    position: relative;
    overflow: hidden;
}

.water-shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shineMove 3s ease-in-out infinite;
}

@keyframes shineMove {
    0% { left: -100%; }
    50%, 100% { left: 150%; }
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 12px 24px;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 168, 232, 0.1);
    transition: all 0.3s;
}

.navbar.scrolled {
    padding: 8px 24px;
    background: rgba(10, 10, 15, 0.98);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: width 0.3s;
}

.nav-links a:hover { color: var(--blue); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
    background: var(--blue) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
    border-radius: 8px;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--blue-dark) !important; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: 0.3s;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover .btn-ripple {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 168, 232, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.btn-full { width: 100%; }

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--dark) 0%, #0a1628 50%, var(--dark) 100%);
    z-index: -1;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 168, 232, 0.15) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.usa-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeInDown 1s ease;
}

.hero-logo {
    margin-bottom: 24px;
}

.hero-logo img {
    max-width: 400px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(0, 168, 232, 0.5));
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { filter: drop-shadow(0 0 30px rgba(0, 168, 232, 0.5)); }
    50% { filter: drop-shadow(0 0 50px rgba(0, 168, 232, 0.8)); }
}

@keyframes fadeInDown {
    0% { opacity: 0; transform: translateY(-20px); }
    100% { opacity: 1; transform: translateY(0); }
}

.tagline {
    font-size: 1.4rem;
    color: var(--gray-light);
    margin-bottom: 32px;
    animation: fadeInUp 1s ease 0.3s both;
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

.hero-features {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.5s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--gray-light);
    transition: transform 0.3s;
}

.hero-feature:hover {
    transform: translateY(-3px);
}

.feature-icon {
    font-size: 1.5rem;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.7s both;
}

.scroll-indicator {
    position: absolute;
    bottom: 140px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--gray);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

.water-drop-icon {
    width: 30px;
    height: 30px;
    color: var(--blue);
}

.water-drop-icon svg {
    width: 100%;
    height: 100%;
    animation: dropBounce 1.5s ease-in-out infinite;
}

@keyframes dropBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ============================================
   WATER JOURNEY SECTION - Infographic
   ============================================ */
.water-journey {
    padding: 120px 0 150px;
    background: linear-gradient(180deg, #e8f4f8 0%, #d4eef7 50%, #c5e8f4 100%);
    position: relative;
    overflow: hidden;
    min-height: 900px;
}

.water-journey .section-title,
.water-journey .section-subtitle {
    color: #1a3a4a;
}

.water-journey .section-title {
    font-size: 2.8rem;
}

.water-journey .section-subtitle {
    font-size: 1.3rem;
}

.water-journey .blue {
    color: var(--blue-dark);
}

/* Sky Background */
.journey-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 350px;
    overflow: hidden;
    z-index: 0;
}

.sky {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #5eb3e4 0%, #87CEEB 40%, #B0E0E6 70%, #e8f4f8 100%);
    position: relative;
}

/* Sun with rays */
.sun {
    position: absolute;
    top: 40px;
    right: 12%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, #FFD700 0%, #FFA500 40%, #FF8C00 60%, transparent 70%);
    border-radius: 50%;
    box-shadow: 0 0 80px #FFD700, 0 0 150px rgba(255, 215, 0, 0.6);
    animation: sunGlow 3s ease-in-out infinite;
}

.sun-ray {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 4px;
    background: linear-gradient(90deg, #FFD700, transparent);
    transform-origin: left center;
}

.sun-ray:nth-child(1) { transform: rotate(0deg); }
.sun-ray:nth-child(2) { transform: rotate(45deg); }
.sun-ray:nth-child(3) { transform: rotate(90deg); }
.sun-ray:nth-child(4) { transform: rotate(135deg); }

@keyframes sunGlow {
    0%, 100% { box-shadow: 0 0 80px #FFD700, 0 0 150px rgba(255, 215, 0, 0.6); }
    50% { box-shadow: 0 0 100px #FFD700, 0 0 180px rgba(255, 215, 0, 0.7); }
}

/* Clouds - Bigger and more detailed */
.cloud {
    position: absolute;
    display: flex;
    animation: cloudFloat 25s ease-in-out infinite;
}

.cloud-1 {
    top: 50px;
    left: 10%;
}

.cloud-2 {
    top: 100px;
    left: 45%;
    animation-delay: -12s;
    transform: scale(0.9);
}

.cloud-3 {
    top: 30px;
    left: 70%;
    animation-delay: -6s;
    transform: scale(1.1);
}

.cloud-puff {
    width: 60px;
    height: 50px;
    background: white;
    border-radius: 50%;
    margin: 0 -15px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.cloud-puff:nth-child(2) {
    width: 85px;
    height: 70px;
    margin-top: -20px;
}

.cloud-puff:nth-child(3) {
    width: 70px;
    height: 55px;
    margin-top: -10px;
}

.cloud-puff:nth-child(4) {
    width: 55px;
    height: 45px;
    margin-top: -5px;
}

@keyframes cloudFloat {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(40px); }
}

/* Birds */
.birds {
    position: absolute;
    top: 80px;
    left: 30%;
    animation: birdsFloat 8s ease-in-out infinite;
}

.bird {
    position: absolute;
    width: 20px;
    height: 8px;
    background: transparent;
    border-top: 3px solid #333;
    border-radius: 50% 50% 0 0;
    transform: rotate(-10deg);
}

.bird::before {
    content: '';
    position: absolute;
    left: 100%;
    top: -3px;
    width: 20px;
    height: 8px;
    border-top: 3px solid #333;
    border-radius: 50% 50% 0 0;
    transform: rotate(20deg);
}

.bird:nth-child(2) {
    left: 40px;
    top: 15px;
    transform: scale(0.8);
}

.bird:nth-child(3) {
    left: 20px;
    top: 30px;
    transform: scale(0.6);
}

@keyframes birdsFloat {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(15px) translateY(-5px); }
    50% { transform: translateX(30px) translateY(0); }
    75% { transform: translateX(15px) translateY(5px); }
}

/* Rain Drops */
.rain-drops {
    position: absolute;
    top: 150px;
    left: 12%;
    width: 150px;
    height: 150px;
}

.drop {
    position: absolute;
    width: 5px;
    height: 20px;
    background: linear-gradient(180deg, transparent, #4BA3C7);
    border-radius: 0 0 50% 50%;
    animation: rainFall 1.2s linear infinite;
}

.drop:nth-child(1) { left: 5%; animation-delay: 0s; }
.drop:nth-child(2) { left: 20%; animation-delay: 0.15s; }
.drop:nth-child(3) { left: 35%; animation-delay: 0.3s; }
.drop:nth-child(4) { left: 50%; animation-delay: 0.45s; }
.drop:nth-child(5) { left: 65%; animation-delay: 0.6s; }
.drop:nth-child(6) { left: 80%; animation-delay: 0.75s; }
.drop:nth-child(7) { left: 95%; animation-delay: 0.9s; }

@keyframes rainFall {
    0% { transform: translateY(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(80px); opacity: 0; }
}

/* Journey Infographic Container */
.journey-infographic {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 25px;
    margin-top: 60px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* Journey Step - BIGGER */
.journey-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 220px;
}

.step-visual {
    width: 200px;
    height: 180px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    padding: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
}

.step-label {
    color: #1a3a4a;
}

.step-num {
    display: inline-flex;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    color: white;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 12px;
    box-shadow: 0 4px 15px rgba(0, 119, 182, 0.4);
}

.step-label h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: #0a2a3a;
}

.step-label p {
    font-size: 0.95rem;
    color: #4a6a7a;
    line-height: 1.4;
}

/* Journey Arrows - BIGGER */
.journey-arrow {
    color: var(--blue);
    width: 60px;
    flex-shrink: 0;
    margin-top: 60px;
}

.journey-arrow svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(2px 2px 4px rgba(0, 119, 182, 0.3));
}

/* ===== RIVER SCENE - CLEAN ===== */
.river-scene {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.mountains {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    margin-bottom: -1px;
}

.mountain {
    width: 50px;
    height: 60px;
    background: linear-gradient(135deg, #5A8A6F 0%, #4A7A5F 100%);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    margin: 0 -8px;
}

.mountain.center {
    width: 70px;
    height: 80px;
    background: linear-gradient(135deg, #4A7A5F 0%, #3A6A4F 100%);
    z-index: 2;
}

.river {
    width: 100%;
    height: 45px;
    background: linear-gradient(180deg, #4BA3C7 0%, #2E86AB 100%);
    border-radius: 0 0 12px 12px;
    position: relative;
    overflow: hidden;
}

.river-wave {
    position: absolute;
    bottom: 0;
    width: 200%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 20'%3E%3Cpath d='M0 10 Q25 0 50 10 T100 10 V20 H0Z' fill='rgba(255,255,255,0.25)'/%3E%3C/svg%3E");
    background-size: 50px 20px;
    background-repeat: repeat-x;
    background-position: bottom;
    animation: riverFlow 2s linear infinite;
}

@keyframes riverFlow {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50px); }
}

/* ===== TREATMENT PLANT - CLEAN ===== */
.treatment-plant {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 6px;
    height: 100%;
    width: 100%;
}

.plant-building {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.plant-roof {
    width: 70px;
    height: 20px;
    background: linear-gradient(135deg, #5a5a6a 0%, #4a4a5a 100%);
    clip-path: polygon(10% 100%, 50% 0%, 90% 100%);
}

.plant-body {
    width: 65px;
    height: 55px;
    background: linear-gradient(180deg, #7a7a8a 0%, #5a5a6a 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    border-radius: 0 0 4px 4px;
}

.plant-window {
    width: 14px;
    height: 18px;
    background: linear-gradient(180deg, #c8e8f8 0%, #a8d4e6 100%);
    border: 2px solid #4a4a5a;
}

.plant-tank {
    width: 35px;
    height: 75px;
    background: linear-gradient(90deg, #8a8a9a 0%, #c0c0c8 50%, #8a8a9a 100%);
    border-radius: 12px 12px 6px 6px;
}

.plant-tank.small {
    width: 28px;
    height: 55px;
}

/* ===== WATER TOWER - CLEAN ===== */
.distribution {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    width: 100%;
}

.water-tower {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tower-tank {
    width: 70px;
    height: 40px;
    background: linear-gradient(90deg, #5a9ab5 0%, #8ac4de 50%, #5a9ab5 100%);
    border-radius: 20px 20px 6px 6px;
    border: 3px solid #4a7a8a;
}

.tower-stem {
    width: 16px;
    height: 8px;
    background: linear-gradient(90deg, #5a6a7a 0%, #7a8a9a 50%, #5a6a7a 100%);
}

.tower-legs {
    display: flex;
    justify-content: space-between;
    width: 60px;
}

.tower-legs .leg {
    width: 5px;
    height: 50px;
    background: linear-gradient(90deg, #4a5a6a 0%, #6a7a8a 50%, #4a5a6a 100%);
}

.pipes-ground {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 4px;
}

.ground {
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, #6B5344 0%, #8B7355 50%, #6B5344 100%);
    border-radius: 3px;
}

.pipe {
    width: 80%;
    height: 10px;
    background: linear-gradient(180deg, #8B5A3A 0%, #6B4A2A 100%);
    border-radius: 5px;
    margin-top: 4px;
}

/* ===== HOME SCENE - CLEAN ===== */
.home-scene {
    position: relative;
    height: 100%;
    width: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.house {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.roof {
    width: 110px;
    height: 45px;
    background: linear-gradient(135deg, #8B4513 0%, #A0522D 50%, #8B4513 100%);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
}

.house-body {
    width: 100px;
    height: 60px;
    background: linear-gradient(180deg, #F5DEB3 0%, #DEB887 100%);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 10px;
    gap: 10px;
    position: relative;
    border-radius: 0 0 4px 4px;
}

.window-home {
    width: 20px;
    height: 22px;
    background: linear-gradient(180deg, #c8e8f8 0%, #a8d4e6 100%);
    border: 2px solid #5a4a3a;
}

.door {
    width: 22px;
    height: 35px;
    background: linear-gradient(180deg, #654321 0%, #8B4513 100%);
    border-radius: 4px 4px 0 0;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.question-mark {
    position: absolute;
    top: 10px;
    right: 5px;
    font-size: 2.5rem;
    color: #e74c3c;
    font-weight: bold;
    animation: questionPulse 1.5s ease-in-out infinite;
}

@keyframes questionPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.8; }
}

/* ===== WARNING BOX - BIGGER ===== */
.journey-warning {
    margin-top: 70px;
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
    border: 3px solid #e74c3c;
    border-radius: 20px;
    padding: 35px 40px;
    display: flex;
    align-items: center;
    gap: 25px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 8px 30px rgba(231, 76, 60, 0.2);
}

.warning-icon {
    font-size: 3.5rem;
    flex-shrink: 0;
}

.warning-content h3 {
    color: #c0392b;
    margin-bottom: 12px;
    font-size: 1.6rem;
}

.warning-content p {
    color: #5a3a3a;
    line-height: 1.7;
    margin: 0;
    font-size: 1.1rem;
}

.warning-content strong {
    color: #c0392b;
}

/* Responsive */
@media (max-width: 1100px) {
    .journey-infographic {
        gap: 15px;
    }

    .journey-arrow {
        width: 45px;
    }

    .step-visual {
        width: 170px;
        height: 160px;
    }
}

@media (max-width: 900px) {
    .journey-infographic {
        flex-direction: column;
        gap: 30px;
    }

    .journey-arrow {
        transform: rotate(90deg);
        width: 40px;
        margin-top: 0;
    }

    .journey-step {
        max-width: 280px;
    }

    .step-visual {
        width: 220px;
        height: 180px;
    }
}

@media (max-width: 600px) {
    .water-journey {
        padding: 80px 0 100px;
    }

    .water-journey .section-title {
        font-size: 2rem;
    }

    .journey-warning {
        flex-direction: column;
        text-align: center;
        padding: 25px;
    }

    .warning-content h3 {
        font-size: 1.3rem;
    }

    .warning-content p {
        font-size: 1rem;
    }

    .step-visual {
        width: 120px;
        height: 100px;
    }
}

/* ============================================
   SOLUTION SECTION
   ============================================ */

.solution {
    padding: 120px 0 150px;
    background: var(--dark-card);
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.benefit-card {
    background: var(--dark-lighter);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.benefit-card:hover {
    border-color: var(--blue);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 168, 232, 0.2);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.benefit-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.benefit-card p {
    font-size: 0.9rem;
    color: var(--gray);
    position: relative;
    z-index: 1;
}

.solution-image {
    position: relative;
}

.solution-image img {
    width: 100%;
    border-radius: 16px;
    position: relative;
    z-index: 1;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works {
    padding: 120px 0 180px;
    background: var(--dark);
    position: relative;
}

.process-timeline {
    display: flex;
    gap: 40px;
    margin-bottom: 80px;
    position: relative;
}

.timeline-water-line {
    position: absolute;
    top: 25px;
    left: 60px;
    right: 60px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.water-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--blue), var(--blue-light));
    border-radius: 2px;
    transition: width 1s ease;
}

.process-step {
    flex: 1;
    padding: 32px;
    background: var(--dark-card);
    border-radius: 16px;
    border: 2px solid transparent;
    transition: all 0.4s;
    position: relative;
}

.process-step:hover {
    border-color: var(--blue);
    transform: translateY(-5px);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
}

.step-ripple {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--blue);
    border-radius: 50%;
    animation: stepRipple 2s ease-out infinite;
    opacity: 0;
}

.process-step:hover .step-ripple {
    animation: stepRipple 1.5s ease-out infinite;
}

@keyframes stepRipple {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2); opacity: 0; }
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--gray);
    line-height: 1.7;
}

.tech-features {
    background: var(--dark-card);
    padding: 48px;
    border-radius: 20px;
    border: 1px solid rgba(0, 168, 232, 0.2);
}

.tech-title {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 40px;
    color: var(--blue);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.tech-card {
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 20px;
    border-radius: 12px;
    transition: all 0.3s;
}

.tech-card:hover {
    background: rgba(0, 168, 232, 0.1);
}

.tech-img {
    width: 100%;
    max-width: 120px;
    height: auto;
    margin: 0 auto 16px;
    display: block;
    border-radius: 12px;
    transition: transform 0.3s;
}

.tech-card:hover .tech-img {
    transform: scale(1.05);
}

.tech-card h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.tech-card p {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ============================================
   VORTECH SECTION
   ============================================ */

.vortech {
    padding: 120px 0;
    background: linear-gradient(180deg, #e8f4f8 0%, #d0e8f0 100%);
    color: var(--dark);
    position: relative;
    overflow: hidden;
}

.vortech .section-subtitle { color: #666; }

.vortech-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.vortech-visual {
    display: flex;
    justify-content: center;
}

.vortech-tank {
    width: 120px;
    height: 350px;
    background: linear-gradient(90deg,
        rgba(180, 210, 230, 0.4) 0%,
        rgba(220, 240, 255, 0.6) 20%,
        rgba(255, 255, 255, 0.7) 50%,
        rgba(220, 240, 255, 0.6) 80%,
        rgba(180, 210, 230, 0.4) 100%);
    border-radius: 60px;
    position: relative;
    box-shadow:
        inset -5px 0 15px rgba(0, 100, 150, 0.1),
        inset 5px 0 15px rgba(255, 255, 255, 0.4),
        0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 2px solid rgba(200, 220, 240, 0.6);
}

/* Cylinder top cap */
.vortech-tank::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: linear-gradient(180deg, #b0b0b0, #d0d0d0, #909090);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

/* Cylinder bottom cap */
.vortech-tank::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: linear-gradient(180deg, #909090, #707070);
    border-radius: 50%;
    z-index: 10;
}

/* ============================================
   TANK WATER - fills halfway
   ============================================ */
.tank-water-half {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    height: 45%;
    background: linear-gradient(180deg,
        rgba(0, 168, 232, 0.3) 0%,
        rgba(0, 168, 232, 0.5) 30%,
        rgba(0, 119, 182, 0.6) 100%);
    border-radius: 0 0 50px 50px;
    overflow: hidden;
}

/* Water surface with more wave motion */
.water-surface {
    position: absolute;
    top: -8px;
    left: -10%;
    right: -10%;
    height: 20px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.6) 25%,
        rgba(0, 200, 255, 0.7) 50%,
        rgba(255, 255, 255, 0.6) 75%,
        transparent 100%);
    border-radius: 50%;
    animation: waveSurface 1s ease-in-out infinite;
}

.water-surface::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5%;
    right: 5%;
    height: 10px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.5) 30%,
        rgba(255, 255, 255, 0.7) 50%,
        rgba(255, 255, 255, 0.5) 70%,
        transparent 100%);
    border-radius: 50%;
    animation: waveSurface 1.2s ease-in-out infinite reverse;
}

@keyframes waveSurface {
    0%, 100% { transform: translateX(-8%) scaleY(1); }
    50% { transform: translateX(8%) scaleY(0.6); }
}

/* Inner water shimmer/movement */
.tank-water-half::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    right: 10%;
    bottom: 20%;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%);
    animation: waterShimmer 1.5s ease-in-out infinite;
}

.tank-water-half::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 5%;
    width: 25px;
    height: 25px;
    background: radial-gradient(circle, rgba(255,255,255,0.5) 0%, transparent 70%);
    border-radius: 50%;
    animation: floatBubble 2s ease-in-out infinite;
}

@keyframes waterShimmer {
    0%, 100% { opacity: 0.3; transform: translateY(0) translateX(0); }
    25% { opacity: 0.5; transform: translateY(-3px) translateX(3px); }
    50% { opacity: 0.7; transform: translateY(-6px) translateX(0); }
    75% { opacity: 0.5; transform: translateY(-3px) translateX(-3px); }
}

@keyframes floatBubble {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); opacity: 0.5; }
    25% { transform: translateY(-10px) translateX(5px) scale(1.1); opacity: 0.7; }
    50% { transform: translateY(-20px) translateX(0) scale(1.2); opacity: 0.8; }
    75% { transform: translateY(-10px) translateX(-5px) scale(1.1); opacity: 0.7; }
}

/* ============================================
   CENTER TUBE - pipe in middle of tank
   ============================================ */
.center-tube {
    position: absolute;
    left: 50%;
    top: 15px;
    bottom: 15px;
    width: 20px;
    transform: translateX(-50%);
    background: linear-gradient(90deg,
        #606060 0%,
        #909090 30%,
        #b0b0b0 50%,
        #909090 70%,
        #606060 100%);
    border-radius: 10px;
    box-shadow:
        inset -2px 0 4px rgba(0, 0, 0, 0.3),
        inset 2px 0 4px rgba(255, 255, 255, 0.3),
        0 0 10px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.center-tube::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 10px;
    background: linear-gradient(180deg, #707070, #909090);
    border-radius: 5px;
}

.center-tube::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 10px;
    background: linear-gradient(180deg, #909090, #707070);
    border-radius: 5px;
}

/* ============================================
   ARROW ORBIT - curved arrows circling the tube (recycle style)
   ============================================ */
.arrow-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%);
    animation: orbitSpin 3s linear infinite;
    z-index: 4;
}

@keyframes orbitSpin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.curved-arrow {
    position: absolute;
    width: 55px;
    height: 55px;
    filter: drop-shadow(0 0 4px rgba(0, 168, 232, 0.6));
}

/* Position 2 arrows opposite each other - recycle style */
.curved-arrow:nth-child(1) {
    top: -5px;
    right: -5px;
}

.curved-arrow:nth-child(2) {
    bottom: -5px;
    left: -5px;
}

/* Arrow pulse animation */
.curved-arrow path,
.curved-arrow polygon {
    animation: arrowPulse 1.5s ease-in-out infinite;
}

@keyframes arrowPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.vortech-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.vortech-benefit {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s;
}

.vortech-benefit:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 168, 232, 0.2);
}

.benefit-dot {
    width: 12px;
    height: 12px;
    background: var(--blue);
    border-radius: 50%;
    position: absolute;
    top: 24px;
    right: 24px;
}

.benefit-dot.pulse {
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 168, 232, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(0, 168, 232, 0); }
}

.vortech-benefit h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.vortech-benefit p {
    font-size: 0.9rem;
    color: #666;
}

/* ============================================
   DRINKING WATER SECTION
   ============================================ */

.drinking-water {
    padding: 120px 0 150px;
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.drinking-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.drinking-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.drinking-highlight {
    font-size: 1.2rem;
    color: var(--gray-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.cost-callout {
    display: inline-flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--blue), var(--blue-dark));
    padding: 20px 40px;
    border-radius: 12px;
    margin-bottom: 32px;
    position: relative;
    overflow: hidden;
}

.cost-amount {
    font-size: 1.8rem;
    font-weight: 700;
}

.cost-unit {
    font-size: 1rem;
    opacity: 0.9;
}

.drinking-features {
    list-style: none;
    margin-bottom: 32px;
}

.drinking-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 1rem;
    color: var(--gray-light);
    transition: all 0.3s;
}

.drinking-features li:hover {
    transform: translateX(10px);
    color: var(--white);
}

.check {
    color: var(--blue);
    font-weight: bold;
    font-size: 1.2rem;
}

.certification {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--dark-card);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nsf-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: white;
    color: var(--dark);
    padding: 12px 20px;
    border-radius: 8px;
    min-width: 80px;
}

.nsf-text {
    font-size: 1.2rem;
    font-weight: 800;
}

.nsf-label {
    font-size: 0.6rem;
    font-weight: 600;
}

.certification p {
    font-size: 0.85rem;
    color: var(--gray);
}

.drinking-image {
    position: relative;
}

.drinking-image img {
    width: 100%;
    border-radius: 16px;
    position: relative;
    z-index: 1;
}

/* ============================================
   ALKALINE SECTION
   ============================================ */

.alkaline {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--dark-card) 0%, var(--dark) 100%);
}

/* pH Spectrum Chart */
.ph-chart {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ph-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.ph-label-left {
    color: #ff6b6b;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ph-label-center {
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.15em;
}

.ph-label-right {
    color: var(--blue);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ph-scale {
    margin-bottom: 15px;
}

.ph-bar {
    display: flex;
    border-radius: 12px;
    overflow: visible;
    height: 70px;
}

.ph-segment {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ph-segment:first-child {
    border-radius: 12px 0 0 12px;
}

.ph-segment:last-child {
    border-radius: 0 12px 12px 0;
}

.ph-number {
    font-weight: 700;
    font-size: 1.3rem;
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.ph-segment.acidic-4 .ph-number,
.ph-segment.neutral .ph-number {
    color: #333;
    text-shadow: none;
}

/* Hover tooltip */
.ph-tooltip {
    position: absolute;
    bottom: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 12px 18px 14px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.tooltip-emoji {
    font-size: 2.5rem;
    line-height: 1;
    display: block;
    margin-bottom: 4px;
}

.ph-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.95);
}

.ph-segment:hover .ph-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.ph-segment:hover {
    transform: scaleY(1.08);
    z-index: 10;
}

/* Segment colors */
.ph-segment.acidic-1 { background: #c62828; }
.ph-segment.acidic-2 { background: #e53935; }
.ph-segment.acidic-3 { background: #fb8c00; }
.ph-segment.acidic-4 { background: #fdd835; }
.ph-segment.neutral { background: #7cb342; }
.ph-segment.alkaline-1 { background: #43a047; }
.ph-segment.alkaline-2 { background: #00acc1; }
.ph-segment.alkaline-3 { background: var(--blue); }

.ph-segment.trueblue-ph {
    background: linear-gradient(180deg, var(--blue) 0%, var(--blue-dark) 100%);
    box-shadow: 0 0 25px rgba(0, 168, 232, 0.6);
}

.ph-tooltip.trueblue-tooltip {
    background: var(--blue);
    font-weight: 600;
}

.ph-tooltip.trueblue-tooltip::after {
    border-top-color: var(--blue);
}

/* Uniform labels row */
.ph-labels-row {
    display: flex;
    justify-content: space-between;
    padding: 0 2px;
}

.ph-labels-row span {
    flex: 1;
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray);
    padding-top: 8px;
}

.ph-labels-row .trueblue-label {
    color: var(--blue);
    font-weight: 600;
}

/* Responsive pH Chart */
@media (max-width: 768px) {
    .ph-chart {
        padding: 24px;
    }

    .ph-bar {
        height: 55px;
    }

    .ph-number {
        font-size: 1rem;
    }

    .ph-tooltip {
        font-size: 0.7rem;
        padding: 6px 10px;
    }

    .ph-labels-row span {
        font-size: 0.65rem;
    }

    .ph-label-center {
        font-size: 1rem;
    }

    .ph-label-left,
    .ph-label-right {
        font-size: 0.85rem;
    }
}

.alkaline-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.alkaline-benefit {
    text-align: center;
    margin-bottom: 40px;
}

.ph-indicator {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #4ade80, #22c55e);
    padding: 24px 48px;
    border-radius: 16px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.ph-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: rgba(255, 255, 255, 0.2);
    transition: height 1s ease;
}

.ph-indicator:hover .ph-fill {
    height: 100%;
}

.ph-value {
    font-size: 2.5rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.ph-label {
    font-size: 0.9rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.alkaline-feature-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.alk-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--dark-lighter);
    padding: 20px;
    border-radius: 12px;
    transition: all 0.3s;
}

.alk-feature:hover {
    transform: translateX(10px);
    background: rgba(0, 168, 232, 0.1);
}

.alk-icon {
    font-size: 2rem;
}

.alk-feature h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.alk-feature p {
    font-size: 0.85rem;
    color: var(--gray);
}

.alkaline-specs {
    background: var(--dark-lighter);
    padding: 32px;
    border-radius: 16px;
}

.alkaline-specs h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    text-align: center;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
}

.specs-table td {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.specs-table td:first-child { color: var(--gray); }
.specs-table td:last-child { text-align: right; font-weight: 600; }

.specs-badges {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.badge {
    background: rgba(0, 168, 232, 0.1);
    color: var(--blue);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 100%);
    position: relative;
    overflow: hidden;
}

.contact-waves {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    pointer-events: none;
}

.contact-waves svg {
    width: 100%;
    height: 100%;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.contact-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cf {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
}

.cf span { font-weight: bold; }

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    background: white;
    color: var(--dark);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(0, 168, 232, 0.1);
}

.contact-form .btn { margin-top: 8px; }

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: 60px 0 30px;
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-brand p {
    color: var(--gray);
    margin-top: 12px;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-links a:hover { color: var(--blue); }

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.85rem;
}

/* ============================================
   GET STARTED / SIGNING SECTION
   ============================================ */

.get-started {
    padding: 120px 0;
    background: var(--dark);
    position: relative;
    overflow: hidden;
}

.signing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 60px auto 40px;
}

.signing-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.signing-card:hover {
    transform: translateY(-5px);
    border-color: var(--blue);
    box-shadow: 0 20px 40px rgba(0, 168, 232, 0.15);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--blue), var(--blue-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.card-icon svg {
    width: 32px;
    height: 32px;
    stroke: white;
}

.signing-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: white;
}

.signing-card p {
    color: var(--gray-light);
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.signing-card .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.signing-card .btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.signing-card .btn:hover svg {
    transform: translateX(4px);
}

.signing-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.sf {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-light);
    font-size: 0.95rem;
}

.sf span {
    color: var(--blue);
    font-weight: bold;
}

/* ============================================
   SIGNING MODAL
   ============================================ */

.signing-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.signing-modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    border: none;
    background: #f0f0f0;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #e0e0e0;
    transform: rotate(90deg);
}

.modal-step {
    display: none;
    padding: 50px 40px;
}

.modal-step.active {
    display: block;
}

.modal-step h2 {
    color: var(--dark);
    font-size: 1.8rem;
    margin-bottom: 10px;
    text-align: center;
}

.modal-subtitle {
    color: #666;
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--dark);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fafafa;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--blue);
    background: white;
    box-shadow: 0 0 0 4px rgba(0, 168, 232, 0.1);
}

.btn-full {
    width: 100%;
    margin-top: 10px;
}

/* Loading State */
#modal-loading {
    text-align: center;
    padding: 80px 40px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e0e0e0;
    border-top-color: var(--blue);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#modal-loading p {
    color: #666;
    font-size: 1.1rem;
}

/* Signing iframe */
#modal-signing {
    padding: 0;
    height: 80vh;
}

#signing-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Error State */
#modal-error {
    text-align: center;
}

.error-icon {
    width: 60px;
    height: 60px;
    background: #ff4444;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

#modal-error h3 {
    color: var(--dark);
    margin-bottom: 10px;
}

#modal-error p {
    color: #666;
    margin-bottom: 24px;
}

/* Success State */
#modal-success {
    text-align: center;
    padding: 60px 40px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0 auto 24px;
    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.3);
}

#modal-success h3 {
    color: var(--dark);
    font-size: 1.8rem;
    margin-bottom: 16px;
}

#modal-success p {
    color: #666;
    margin-bottom: 12px;
    font-size: 1.1rem;
}

#modal-success .success-note {
    font-size: 0.95rem;
    color: #888;
    margin-bottom: 24px;
}

#modal-success strong {
    color: var(--blue);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .solution-grid,
    .drinking-grid,
    .alkaline-grid,
    .contact-wrapper,
    .vortech-showcase {
        grid-template-columns: 1fr;
    }

    .solution-image { order: -1; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        padding: 20px;
        gap: 0;
    }

    .nav-links.active { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 16px; text-align: center; }
    .nav-links a::after { display: none; }

    .hero { padding-top: 100px; }
    .hero-logo img { max-width: 280px; }
    .tagline { font-size: 1.1rem; }
    .hero-features { flex-direction: column; gap: 16px; }

    .section-title { font-size: 2rem; }
    .solution-content { grid-template-columns: 1fr; }
    .process-timeline { flex-direction: column; }
    .timeline-water-line { display: none; }
    .tech-grid { grid-template-columns: 1fr; }
    .vortech-benefits { grid-template-columns: 1fr; }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .rain-effect { opacity: 0.3; }

    /* Signing section mobile */
    .signing-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .signing-card {
        padding: 30px 20px;
    }

    .signing-features {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .modal-content {
        max-width: 100%;
        margin: 10px;
        border-radius: 15px;
    }

    .modal-step {
        padding: 40px 25px;
    }

    .modal-step h2 {
        font-size: 1.5rem;
    }

    #modal-signing {
        height: 70vh;
    }
}