/* Reset & Base Styles */
:root {
    --primary: #0f4c81;        /* Deep Blue */
    --primary-light: #1e70b9;  
    --secondary: #00a8e8;      /* Bright Water Blue */
    --accent: #00d2ff;         /* Cyan */
    --text-dark: #1a2b3c;
    --text-muted: #5a6e82;
    --bg-light: #f4f9fd;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.3);
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Outfit', sans-serif;
    
    --shadow-sm: 0 4px 15px rgba(15, 76, 129, 0.05);
    --shadow-md: 0 10px 30px rgba(15, 76, 129, 0.08);
    --shadow-lg: 0 20px 40px rgba(15, 76, 129, 0.12);
    
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--primary);
    line-height: 1.2;
}

.text-gradient {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Animations Classes */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in {
    opacity: 0;
    transition: opacity 1s ease;
}

.fade-up.visible, .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    color: var(--white);
    box-shadow: 0 8px 20px rgba(0, 168, 232, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0, 168, 232, 0.4);
    background: linear-gradient(135deg, var(--secondary), var(--accent));
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--primary);
    border: 2px solid rgba(255,255,255,0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--white);
    transform: translateY(-3px);
}

/* Header & Navigation */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.2rem 0;
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: var(--shadow-sm);
    padding: 0.8rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 70px;
    width: auto;
    display: block;
    transition: var(--transition);
}

header.scrolled .logo-img {
    height: 55px;
}

nav .nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--secondary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--secondary);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Mobile Menu */
.burger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.burger div {
    width: 28px;
    height: 3px;
    background-color: var(--primary);
    margin: 5px;
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('https://images.unsplash.com/photo-1548839140-29a749e1bc4e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    background-attachment: fixed;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(244, 249, 253, 0.95) 0%, rgba(255, 255, 255, 0.8) 100%);
    backdrop-filter: blur(5px);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1.2;
}

.hero-brand-logo {
    height: 120px;
    width: auto;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}

.pill-badge {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(0, 168, 232, 0.1);
    color: var(--secondary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 168, 232, 0.2);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-text h2 {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--primary);
    text-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 550px;
    font-weight: 400;
}

.hero-features {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--primary);
    background: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.hero-feature i {
    color: var(--secondary);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.image-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.4) 0%, rgba(255,255,255,0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    border-radius: 50%;
    filter: blur(20px);
}

.floating-bottle {
    max-width: 100%;
    height: auto;
    position: relative;
    z-index: 2;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(15, 76, 129, 0.25);
    max-height: 600px;
    object-fit: cover;
    border: 8px solid var(--white);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.floating-bottle:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

/* Global Sections */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h3 {
    font-family: var(--font-body);
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.section-title h2 {
    font-size: 2.8rem;
    font-weight: 700;
}

.title-line {
    height: 4px;
    width: 60px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    margin: 1.5rem auto;
    border-radius: 2px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

/* About / Process Section */
.about-section {
    padding: 6rem 0;
    background-color: var(--white);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.process-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.03);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.process-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.process-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.process-card:hover::before {
    transform: scaleX(1);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--secondary);
    transition: var(--transition);
}

.process-card:hover .icon-wrapper {
    background: var(--secondary);
    color: var(--white);
    transform: scale(1.1);
}

.process-card h4 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.process-card p {
    color: var(--text-muted);
}

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

.products-wrapper {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.products-info {
    flex: 1;
}

.products-info .section-title {
    text-align: left;
    margin-bottom: 2rem;
}

.products-info .title-line {
    margin: 1.5rem 0;
}

.products-info p {
    margin: 0 0 2rem 0;
}

.size-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.size-list li {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.size-list li:hover {
    transform: translateX(10px);
    border-left-color: var(--secondary);
}

.size-list li.highlight-size {
    border-left-color: var(--primary);
    background: linear-gradient(to right, rgba(0, 168, 232, 0.05), var(--white));
}

.size-badge {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    min-width: 100px;
}

.highlight-size .size-badge {
    color: var(--secondary);
    font-size: 1.8rem;
}

.size-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.products-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.products-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    height: 600px;
    width: 100%;
}

/* Image Banner */
.image-banner {
    height: 400px;
    background: url('https://images.unsplash.com/photo-1517409245532-6901804f36a5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover fixed;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.banner-overlay {
    background: rgba(15, 76, 129, 0.6);
    backdrop-filter: blur(3px);
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    padding: 0 20px;
}

.banner-overlay h2 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.banner-overlay p {
    font-size: 1.5rem;
    font-weight: 300;
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: var(--bg-light);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-5px);
}

.contact-card:hover h3, .contact-card:hover p, .contact-card:hover .support-item {
    color: var(--white);
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.contact-card:hover .contact-icon {
    color: var(--accent);
}

.contact-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.contact-card p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.highlight-text {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary) !important;
    margin: 1rem 0 !important;
}

.contact-card:hover .highlight-text {
    color: var(--accent) !important;
}

.support-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
}

/* Footer */
footer {
    background-color: var(--primary);
    color: var(--white);
    padding: 4rem 0 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-logo p {
    margin-top: 0.5rem;
    opacity: 0.8;
    font-style: italic;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
}

.footer-bottom {
    background-color: rgba(0,0,0,0.2);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Responsive Design */
@media screen and (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        padding-top: 2rem;
    }

    .hero-text h2 {
        font-size: 3.5rem;
    }

    .hero-text p {
        margin: 0 auto 2rem;
    }

    .hero-brand-logo {
        margin: 0 auto 1.5rem;
    }

    .hero-features {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }
    
    .floating-bottle {
        max-height: 450px;
    }

    .products-wrapper {
        flex-direction: column;
    }

    .products-info .section-title, .products-info .title-line {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }
    
    .products-image img {
        height: 400px;
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0px;
        height: 100vh;
        top: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
        transform: translateX(100%);
        transition: transform 0.4s ease-in-out;
        gap: 3rem;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .nav-active {
        transform: translateX(0%);
    }

    .burger {
        display: block;
    }

    .hero-brand-logo {
        height: 80px;
    }

    .hero-text h2 {
        font-size: 2.8rem;
    }
    
    .section-title h2 {
        font-size: 2.2rem;
    }

    .banner-overlay h2 {
        font-size: 2.5rem;
    }

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

/* Burger Animation */
.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}
.toggle .line2 {
    opacity: 0;
}
.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}