/* ============================================
   BIRON - Premium Artisanal Drink Brand
   Static Website Styles
   ============================================ */

/* ----------------------------------------
   CSS Variables & Theme
   ---------------------------------------- */
:root {
    /* Colors */
    --color-black: #0a0a0a;
    --color-charcoal: #1a1a1a;
    --color-charcoal-light: #252525;
    --color-gold: #c9a962;
    --color-gold-light: #d4b978;
    --color-gold-dark: #a8893f;
    --color-cream: #f5f2eb;
    --color-cream-dark: #e8e4db;
    --color-white: #ffffff;

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

    /* Layout */
    --header-height: 80px;
    --max-width: 1200px;
}

/* ----------------------------------------
   Reset & Base Styles
   ---------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-cream);
    background-color: var(--color-black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-normal);
}

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

input {
    font-family: inherit;
    border: none;
    outline: none;
}

/* ----------------------------------------
   Typography
   ---------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

.section-label {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--color-cream);
    margin-bottom: var(--space-md);
}

/* ----------------------------------------
   Header
   ---------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: transparent;
    transition: background var(--transition-normal), backdrop-filter var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--color-cream);
    transition: color var(--transition-normal);
}

.logo:hover {
    color: var(--color-gold);
}

.nav {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-cream-dark);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-gold);
    transition: width var(--transition-normal);
}

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

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

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    animation: heroZoom 20s ease-out forwards;
}

@keyframes heroZoom {
    to {
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(10, 10, 10, 0.4) 0%,
        rgba(10, 10, 10, 0.6) 50%,
        rgba(10, 10, 10, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: var(--space-md);
}

.hero-text {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(4rem, 12vw, 9rem);
    font-weight: 300;
    letter-spacing: 0.3em;
    color: var(--color-cream);
    margin-bottom: var(--space-md);
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-style: italic;
    color: var(--color-gold-light);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.05em;
}

.hero-description {
    font-size: 1rem;
    color: var(--color-cream-dark);
    max-width: 500px;
    margin: 0 auto var(--space-lg);
    line-height: 1.8;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-black);
    background: var(--color-gold);
    border: 1px solid var(--color-gold);
    transition: all var(--transition-normal);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-gold);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-cream-dark);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.6;
    animation: fadeInUp 1s ease 2s both;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ----------------------------------------
   Story Section
   ---------------------------------------- */
.story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    background: var(--color-black);
}

.story-image {
    position: relative;
    overflow: hidden;
}

.story-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slower);
}

.story:hover .story-image img {
    transform: scale(1.05);
}

.story-image::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30%;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--color-black));
    pointer-events: none;
}

.story-content {
    display: flex;
    align-items: center;
    padding: var(--space-xl) var(--space-lg);
}

.story-inner {
    max-width: 500px;
}

.story-text {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--color-cream-dark);
    margin-bottom: var(--space-md);
}

/* ----------------------------------------
   Experience Section
   ---------------------------------------- */
.experience {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    background: var(--color-charcoal);
}

.experience-image {
    position: relative;
    order: 2;
    overflow: hidden;
}

.experience-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slower);
}

.experience:hover .experience-image img {
    transform: scale(1.05);
}

.experience-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
    height: 100%;
    background: linear-gradient(to left, transparent, var(--color-charcoal));
    pointer-events: none;
    z-index: 1;
}

.experience-content {
    order: 1;
    display: flex;
    align-items: center;
    padding: var(--space-xl) var(--space-lg);
}

.experience-inner {
    max-width: 500px;
}

.experience-qualities {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.quality {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(201, 169, 98, 0.15);
}

.quality:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.quality-name {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: var(--space-xs);
    font-style: italic;
}

.quality-text {
    font-size: 0.95rem;
    color: var(--color-cream-dark);
    line-height: 1.7;
}

/* ----------------------------------------
   Exclusivity Section
   ---------------------------------------- */
.exclusivity {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-black);
    position: relative;
    overflow: hidden;
}

.exclusivity::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.exclusivity-inner {
    text-align: center;
    max-width: 700px;
    padding: var(--space-lg);
    position: relative;
    z-index: 1;
}

.exclusivity-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: var(--space-md);
}

.exclusivity-text {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-cream-dark);
    margin-bottom: var(--space-md);
}

.exclusivity-text.emphasis {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-gold-light);
    margin-top: var(--space-lg);
}

/* ----------------------------------------
   Newsletter Section
   ---------------------------------------- */
.newsletter {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(
        180deg,
        var(--color-black) 0%,
        var(--color-charcoal) 50%,
        var(--color-black) 100%
    );
    padding: var(--space-xl) var(--space-md);
}

.newsletter-inner {
    text-align: center;
    max-width: 550px;
    width: 100%;
}

.newsletter-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

.newsletter-text {
    font-size: 1rem;
    color: var(--color-cream-dark);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.newsletter-form {
    width: 100%;
}

.form-group {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.email-input {
    flex: 1;
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    color: var(--color-cream);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(201, 169, 98, 0.3);
    transition: all var(--transition-normal);
}

.email-input::placeholder {
    color: var(--color-cream-dark);
    opacity: 0.5;
}

.email-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-gold);
}

.btn-submit {
    padding: 1rem 2rem;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-black);
    background: var(--color-gold);
    border: 1px solid var(--color-gold);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-submit:hover {
    background: var(--color-gold-light);
    border-color: var(--color-gold-light);
}

.form-note {
    font-size: 0.75rem;
    color: var(--color-cream-dark);
    opacity: 0.6;
}

/* Form Success State */
.form-success {
    display: none;
    animation: fadeIn 0.5s ease;
}

.form-success.show {
    display: block;
}

.form-success .success-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    border-radius: 50%;
    background: rgba(201, 169, 98, 0.1);
    border: 2px solid var(--color-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-gold);
}

.form-success h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.form-success p {
    color: var(--color-cream-dark);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    background: var(--color-black);
    border-top: 1px solid rgba(201, 169, 98, 0.1);
    padding: var(--space-lg) var(--space-md);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    letter-spacing: 0.15em;
    color: var(--color-cream);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--color-cream-dark);
    font-style: italic;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-link {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-cream-dark);
    opacity: 0.6;
    transition: opacity var(--transition-normal);
}

.footer-link:hover {
    opacity: 1;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(201, 169, 98, 0.3);
    color: var(--color-cream-dark);
    transition: all var(--transition-normal);
}

.social-link:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.footer-legal {
    font-size: 0.7rem;
    color: var(--color-cream-dark);
    opacity: 0.4;
}

/* ----------------------------------------
   Animations
   ---------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.fade-up.delay-1 { animation-delay: 0.3s; }
.fade-up.delay-2 { animation-delay: 0.6s; }
.fade-up.delay-3 { animation-delay: 0.9s; }

/* Reveal on Scroll */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }

    .nav {
        gap: var(--space-md);
    }

    .story,
    .experience {
        grid-template-columns: 1fr;
    }

    .story-image {
        min-height: 50vh;
        order: 1;
    }

    .story-content {
        order: 2;
        padding: var(--space-lg) var(--space-md);
    }

    .story-image::after {
        display: none;
    }

    .experience-image {
        order: 1;
        min-height: 50vh;
    }

    .experience-content {
        order: 2;
        padding: var(--space-lg) var(--space-md);
    }

    .experience-image::before {
        display: none;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .header-inner {
        padding: 0 var(--space-sm);
    }

    .logo {
        font-size: 1.4rem;
    }

    .nav {
        display: none;
    }

    .hero-title {
        letter-spacing: 0.2em;
    }

    .hero-tagline {
        font-size: 1.1rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .btn-primary {
        padding: 0.9rem 2rem;
        font-size: 0.75rem;
    }

    .scroll-indicator {
        display: none;
    }

    .story-content,
    .experience-content {
        padding: var(--space-lg) var(--space-sm);
    }

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

    .story-text {
        font-size: 1rem;
    }

    .quality-name {
        font-size: 1.25rem;
    }

    .exclusivity-inner {
        padding: var(--space-lg) var(--space-sm);
    }

    .exclusivity-text {
        font-size: 1rem;
    }

    .exclusivity-text.emphasis {
        font-size: 1.25rem;
    }

    .newsletter {
        padding: var(--space-lg) var(--space-sm);
    }

    .form-group {
        flex-direction: column;
    }

    .btn-submit {
        width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .quality {
        padding-bottom: var(--space-sm);
    }

    .experience-qualities {
        gap: var(--space-sm);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .hero-bg {
        animation: none;
        transform: scale(1);
    }

    .fade-up {
        opacity: 1;
        animation: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}