:root {
    --color-primary: #00b4d8;
    --color-primary-dark: #0077b6;
    --color-secondary: #90e0ef;
    --color-accent: #caf0f8;

    --color-text-main: #1a1a1a;
    --color-text-light: #666666;
    --color-white: #ffffff;

    --bg-body: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.8);

    --font-main: 'Inter', sans-serif;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    font-weight: 700;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

/* Utilities */
.text-primary {
    color: var(--color-primary);
}

.bg-primary {
    background-color: var(--color-primary);
}

.text-center {
    text-align: center;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1.5rem 0;
    background: transparent;
}

.header.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-main);
    text-transform: uppercase;
    letter-spacing: -1px;
}

.logo-accent {
    color: var(--color-primary);
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: 2rem;
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--color-primary);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-lg);
    transition: background 0.3s;
    display: inline-block;
}

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

/* Mobile Nav */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-text-main);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
}

.nav-mobile {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: white;
    display: flex;
    flex-direction: column;
    padding: 5rem 2rem;
    gap: 2rem;
    box-shadow: var(--shadow-lg);
    transition: right 0.3s ease-in-out;
    z-index: 1001;
}

.nav-mobile.open {
    right: 0;
}

/* Hero Section */
.hero-section {
    padding-top: 8rem;
    padding-bottom: 5rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 2rem;
    }
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

.hero-subtitle {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 1rem;
}

.hero-btn {
    margin-top: 2rem;
    font-size: 1.1rem;
    padding: 0.8rem 2rem;
}

/* Bottle Animation */
.bottle-container {
    width: 100%;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.bottle-img {
    max-height: 100%;
    max-width: 100%;
    filter: drop-shadow(0 20px 30px rgba(0, 180, 216, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(2deg);
    }

    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

/* Stats */
.stats-section {
    background-color: white;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

@media (max-width: 768px) {

    .stats-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-body);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card h3 {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* Services */
.services-section {
    background-color: #f8fcfd;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

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

.service-card h3 {
    margin-bottom: 1rem;
}

/* FAQ */
.faq-section {
    background-color: white;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    border: 1px solid #eee;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 1.5rem;
    background: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: #fcfcfc;
    padding: 0 1.5rem;
}

.faq-item.open .faq-answer {
    max-height: 200px;
    padding: 1rem 1.5rem 1.5rem;
}

/* Contact */
.contact-section {
    background: linear-gradient(135deg, var(--color-accent) 0%, white 100%);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-details {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-md);
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-btn {
    width: 100%;
    font-size: 1rem;
    padding: 1rem;
}

/* Footer */
.footer {
    background-color: #f8f9fa;
    padding: 4rem 0 1rem;
    margin-top: auto;
    border-top: 1px solid #eee;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 3rem;
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--color-text-light);
    max-width: 300px;
}

.footer h4 {
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a,
.footer-contact a {
    color: var(--color-text-light);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-primary);
}

.footer-contact p {
    margin-bottom: 0.8rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    font-size: 1.2rem;
    color: var(--color-text-main);
}

.social-icons a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #eee;
    color: var(--color-text-light);
    font-size: 0.9rem;
}