@font-face {
    font-family: 'PoppinsSemiBoldItalic';
    src: url('assets/fonts/Poppins-SemiBoldItalic.ttf') format('truetype');
    font-weight: 600;
    font-style: italic;
}

:root {
    --primary-color: #000000;
    --secondary-color: #F2F2F7;
    --accent-color: #000000;
    --text-main: #1C1C1E;
    --text-muted: #8E8E93;
    --background: #FFFFFF;
    --border-color: #E5E5EA;
    --radius-l: 24px;
    --radius-m: 16px;
    --max-width: 1200px;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-accent: 'PoppinsSemiBoldItalic', sans-serif;
}

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

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1,
h2,
h3 {
    line-height: 1.1;
}

.italic-brand {
    font-family: var(--font-accent);
    font-style: italic;
    font-weight: 600;
}

/* Header & Nav */
header {
    height: 80px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    width: 70px;
    height: 70px;
}

.footer-logo img {
    width: 200px;
    height: auto;
}

.brand-i {
    display: inline-block;
    width: 14px;
    height: 30px;
    background: url('assets/images/bottle-icon.svg') no-repeat center;
    background-size: contain;
    margin: 0 2px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.2s;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, color 0.3s;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 120%;
    height: 120%;
    transform: skewX(-20deg);
    transition: left 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: -1;
}

.btn:hover::before {
    left: -5%;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary::before,
.btn-secondary::before {
    background-color: #333333;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-main);
}

.btn-secondary:hover {
    color: #ffffff;
}

.btn-small {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: #fff !important;
    font-size: 0.9rem;
}

.btn-small::before {
    background-color: #333333;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: radial-gradient(circle at top right, #f8f8f8 0%, #ffffff 50%);
}

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

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-subtext {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
}

#hero-img {
    width: 100%;
    max-width: 550px;
    border-radius: var(--radius-l);
}

/* Features */
.features {
    padding: 100px 0;
    background-color: #fff;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 40px;
    background-color: var(--secondary-color);
    border-radius: var(--radius-l);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

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

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background-color: var(--secondary-color);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step {
    position: relative;
}

.step-num {
    font-family: var(--font-accent);
    font-size: 4rem;
    opacity: 0.1;
    display: block;
    line-height: 1;
    margin-bottom: -20px;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

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

/* CTA Download */
.cta-section {
    padding: 100px 0;
}

.cta-box {
    background-color: var(--primary-color);
    color: #fff;
    border-radius: var(--radius-l);
    padding: 80px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-box h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.cta-box p {
    font-size: 1.2rem;
    opacity: 0.8;
    margin-bottom: 40px;
}

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.footer-clink {
    font-size: 2rem !important;
}

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--text-main);
    text-decoration: none;
}

.disclaimer {
    margin-top: 20px;
    font-style: italic;
    opacity: 0.5;
}

/* Legal Pages */
.legal-page {
    padding: 80px 0;
}

.legal-page h1 {
    font-size: 3rem;
    margin-bottom: 40px;
    letter-spacing: -1.5px;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 40px 0 20px;
    letter-spacing: -0.5px;
}

.legal-content h3 {
    font-size: 1.25rem;
    margin: 30px 0 15px;
}

.legal-content h4 {
    font-size: 1.1rem;
    margin: 20px 0 10px;
}

.legal-content p {
    margin-bottom: 16px;
    color: var(--text-main);
}

.legal-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.source-link {
    margin-top: 60px;
    font-size: 0.8rem;
    opacity: 0.6;
}

/* Mobile Responsive */
@media (max-width: 900px) {
    header {
        height: 70px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        transition: 0.4s cubic-bezier(0.19, 1, 0.22, 1);
        z-index: 1000;
        gap: 40px;
    }

    .nav-links.active {
        right: 0;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 2.8rem;
        word-break: break-word;
    }

    .hero-cta {
        justify-content: center;
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .features-grid,
    .steps {
        grid-template-columns: 1fr;
    }

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

    .hero-subtext {
        margin: 0 auto 32px;
        font-size: 1.1rem;
    }

    .cta-box {
        padding: 60px 20px;
    }

    .cta-box h2 {
        font-size: 2rem;
    }

    .legal-page h1 {
        font-size: 2.2rem;
    }
}