/* Oxygen Water Page - Extended Styles */

/* Hero Section - Oxygen Theme */
.oxygen-hero {
    min-height: 100vh;
    height: auto;
    background: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 50%, #60A5FA 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 0 80px;
}

.oxygen-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(147, 197, 253, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
}

/* Animated oxygen bubbles in hero */
.oxygen-bubbles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.oxygen-bubbles span {
    position: absolute;
    bottom: -100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    animation: rise 15s infinite ease-in;
}

.oxygen-bubbles span:nth-child(1) { width: 40px; height: 40px; left: 10%; animation-duration: 8s; }
.oxygen-bubbles span:nth-child(2) { width: 20px; height: 20px; left: 20%; animation-duration: 5s; animation-delay: 1s; }
.oxygen-bubbles span:nth-child(3) { width: 50px; height: 50px; left: 35%; animation-duration: 7s; animation-delay: 2s; }
.oxygen-bubbles span:nth-child(4) { width: 80px; height: 80px; left: 50%; animation-duration: 11s; animation-delay: 0s; }
.oxygen-bubbles span:nth-child(5) { width: 35px; height: 35px; left: 55%; animation-duration: 6s; animation-delay: 1s; }
.oxygen-bubbles span:nth-child(6) { width: 45px; height: 45px; left: 65%; animation-duration: 8s; animation-delay: 3s; }
.oxygen-bubbles span:nth-child(7) { width: 25px; height: 25px; left: 70%; animation-duration: 12s; animation-delay: 2s; }
.oxygen-bubbles span:nth-child(8) { width: 60px; height: 60px; left: 80%; animation-duration: 7s; animation-delay: 5s; }
.oxygen-bubbles span:nth-child(9) { width: 30px; height: 30px; left: 85%; animation-duration: 9s; animation-delay: 4s; }
.oxygen-bubbles span:nth-child(10) { width: 70px; height: 70px; left: 95%; animation-duration: 10s; animation-delay: 1s; }

@keyframes rise {
    0% {
        bottom: -100px;
        transform: translateX(0) scale(1);
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        bottom: 100vh;
        transform: translateX(-50px) scale(0.5);
        opacity: 0;
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.hero-tagline {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    font-style: italic;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

.hero-btn.secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* What is Oxygen-Rich Water Section */
.what-is-section {
    padding: 6rem 0;
    background: var(--white);
}

.what-is-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
    margin-top: 3rem;
}

.what-is-visual {
    position: sticky;
    top: 120px;
}

.molecule-animation {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.water-molecule {
    animation: float 6s ease-in-out infinite;
}

.water-molecule .oxygen-atom {
    animation: pulse 3s ease-in-out infinite;
}

.water-molecule .bubble-1 { animation: float 4s ease-in-out infinite; }
.water-molecule .bubble-2 { animation: float 5s ease-in-out infinite 1s; }
.water-molecule .bubble-3 { animation: float 4.5s ease-in-out infinite 0.5s; }
.water-molecule .bubble-4 { animation: float 5.5s ease-in-out infinite 1.5s; }

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.what-is-text {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.definition-card,
.difference-card,
.science-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue);
}

.definition-card h3,
.difference-card h3,
.science-card h3 {
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.definition-card p,
.science-card p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

.definition-card strong {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Comparison Bars */
.comparison-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.5rem 0;
}

.comparison-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comparison-label {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.comparison-bar {
    height: 40px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.comparison-bar.regular {
    background: linear-gradient(90deg, #E0E7FF 0%, #C7D2FE 20%);
    color: var(--text-dark);
    width: 25%;
    min-width: 150px;
}

.comparison-bar.oxygen {
    background: linear-gradient(90deg, #3B82F6 0%, #1E40AF 100%);
    color: var(--white);
    width: 100%;
    animation: expandBar 1.5s ease-out forwards;
}

@keyframes expandBar {
    from { width: 25%; }
    to { width: 100%; }
}

.comparison-note {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-top: 1rem;
}

/* Health Benefits Section */
.benefits-section {
    padding: 6rem 0;
    background: linear-gradient(to bottom, var(--light-blue), var(--white));
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
}

.benefit-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--dark-blue));
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(74, 144, 226, 0.15);
}

.benefit-card.featured {
    border: 2px solid var(--primary-blue);
    background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
}

.benefit-card.featured::before {
    height: 6px;
    background: linear-gradient(90deg, #8B5CF6, #6366F1);
}

.benefit-card .featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #8B5CF6, #6366F1);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    font-size: 1.6rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.benefit-card > p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.benefit-points {
    list-style: none;
    padding: 0;
}

.benefit-points li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
}

.benefit-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.benefits-cta {
    text-align: center;
    margin-top: 4rem;
}

.cta-button-large {
    display: inline-block;
    padding: 1.2rem 3.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.3);
}

.cta-button-large:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(74, 144, 226, 0.4);
}

/* Products Section - Oxygen */
.products-section {
    padding: 6rem 0;
    background: var(--white);
}

.oxygen-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.oxygen-product-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
    border-radius: 25px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
    position: relative;
    border: 2px solid transparent;
}

.oxygen-product-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.2);
    border-color: var(--primary-blue);
}

.oxygen-product-card.large-format {
    grid-column: span 1;
}

.product-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, #10B981, #059669);
    color: var(--white);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.product-badge.premium {
    background: linear-gradient(135deg, var(--accent-gold), #F59E0B);
    color: var(--dark-gray);
}

.oxygen-bottle {
    animation: float 5s ease-in-out infinite;
}

.inner-bubble {
    animation: innerBubble 3s ease-in-out infinite;
}

.inner-bubble:nth-child(odd) { animation-delay: 0.5s; }
.inner-bubble:nth-child(even) { animation-delay: 1s; }

@keyframes innerBubble {
    0%, 100% { opacity: 0.3; transform: translateY(0); }
    50% { opacity: 0.7; transform: translateY(-5px); }
}

.oxygen-product-card .product-image {
    margin-bottom: 1.5rem;
}

.oxygen-product-card .product-img {
    width: 100%;
    max-width: 200px;
    height: auto;
    object-fit: contain;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

.oxygen-product-card .product-name {
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: 0.3rem;
}

.product-size {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.oxygen-product-card .product-description {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-tag {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Oxygen Levels Indicator */
.oxygen-levels-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
}

.oxygen-indicator {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.indicator-content {
    text-align: center;
    color: var(--white);
}

.indicator-content h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.oxygen-meter {
    max-width: 600px;
    margin: 0 auto;
}

.meter-label {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.meter-label .highlight {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.meter-bar {
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.meter-fill {
    height: 100%;
    background: linear-gradient(90deg, #60A5FA, var(--accent-gold));
    border-radius: 15px;
    width: 0;
    animation: fillMeter 2s ease-out forwards 0.5s;
}

@keyframes fillMeter {
    to { width: 85%; }
}

.meter-comparison {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    opacity: 0.9;
}

.indicator-content > p {
    margin-top: 1.5rem;
    font-size: 1rem;
    opacity: 0.9;
}

/* Buy Section - Oxygen Theme */
.oxygen-buy {
    background: linear-gradient(to bottom, var(--light-gray), var(--white));
}

.bulk-order {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
}

.bulk-order h3 {
    font-size: 1.8rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.bulk-order p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.bulk-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--dark-gray), #1a252f);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.bulk-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Learn More Section */
.learn-more-section {
    padding: 5rem 0;
    background: var(--white);
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.cta-card {
    background: var(--light-gray);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.cta-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.cta-card h3 {
    font-size: 1.4rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.cta-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.cta-link {
    display: inline-block;
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: none;
    position: relative;
}

.cta-link::after {
    content: ' →';
    transition: transform 0.3s ease;
    display: inline-block;
}

.cta-link:hover::after {
    transform: translateX(5px);
}

/* Footer Tagline */
.footer-tagline {
    font-style: italic;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

/* Active nav link */
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link.active::after {
    width: 100%;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .oxygen-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .what-is-content {
        grid-template-columns: 1fr;
    }
    
    .what-is-visual {
        position: static;
        order: -1;
    }
    
    .molecule-animation {
        max-width: 300px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .oxygen-hero {
        padding: 100px 0 60px;
    }
    
    .oxygen-hero .hero-content {
        padding: 1.5rem;
    }
    
    .oxygen-hero .hero-badge {
        margin-bottom: 1.5rem;
    }
    
    .oxygen-hero .hero-title {
        font-size: 2.2rem;
        margin-bottom: 1.5rem;
    }
    
    .oxygen-hero .hero-subtitle {
        font-size: 1.2rem;
        margin-bottom: 1.5rem;
    }
    
    .oxygen-hero .hero-description {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .oxygen-hero .hero-tagline {
        font-size: 1.1rem;
        margin-top: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-top: 1.5rem;
    }
    
    .hero-btn {
        width: 100%;
        max-width: 280px;
        padding: 1rem 2rem;
    }
    
    .oxygen-hero .scroll-indicator {
        display: none;
    }
    
    .oxygen-products-grid {
        grid-template-columns: 1fr;
    }
    
    .oxygen-product-card.large-format {
        grid-column: span 1;
    }
    
    .comparison-bar.regular {
        width: 40%;
    }
    
    .meter-comparison {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .oxygen-hero {
        padding: 90px 0 50px;
    }
    
    .oxygen-hero .hero-content {
        padding: 1rem;
    }
    
    .oxygen-hero .hero-badge {
        font-size: 0.7rem;
        padding: 0.4rem 1rem;
        margin-bottom: 1rem;
    }
    
    .oxygen-hero .hero-title {
        font-size: 1.8rem;
        margin-bottom: 1.2rem;
    }
    
    .oxygen-hero .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .oxygen-hero .hero-description {
        font-size: 0.85rem;
        margin-bottom: 1.2rem;
    }
    
    .oxygen-hero .hero-tagline {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-btn {
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .definition-card,
    .difference-card,
    .science-card {
        padding: 1.5rem;
    }
    
    .benefit-card {
        padding: 1.5rem;
    }
    
    .oxygen-product-card {
        padding: 1.5rem;
    }
    
    .oxygen-indicator {
        padding: 2rem 1.5rem;
    }
}