/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --color-primary: #2C1810;
    --color-primary-light: #4A3228;
    --color-accent: #C4A77D;
    --color-accent-dark: #A68B5B;
    --color-cream: #FAF7F2;
    --color-cream-dark: #F0EBE3;
    --color-text: #1A1A1A;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-border: #E5E0D8;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Header */
    --header-height: 80px;

    /* Container */
    --container-max: 1400px;
    --container-padding: 2rem;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -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-fast);
}

ul {
    list-style: none;
}

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

/* ===== UTILITIES ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-3xl) 0;
}

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

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-label--light {
    color: var(--color-accent);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.section-title--light {
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 0;
    transition: all var(--transition-base);
    cursor: pointer;
}

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

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

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

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

.btn--small {
    padding: 0.625rem 1.25rem;
    font-size: 0.75rem;
}

.btn--large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    transition: gap var(--transition-base);
}

.link-arrow:hover {
    gap: var(--spacing-sm);
}

.link-arrow svg {
    transition: transform var(--transition-base);
}

.link-arrow:hover svg {
    transform: translateX(4px);
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--color-white);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.header.scrolled::before {
    opacity: 1;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
}

.nav__logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 10;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-white);
    transition: color var(--transition-base), text-shadow var(--transition-base);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header.scrolled .logo-text {
    text-shadow: none;
}

.header.scrolled .logo-text {
    color: var(--color-primary);
}

.logo-subtext {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-top: -2px;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
    transition: text-shadow var(--transition-base);
}

.header.scrolled .logo-subtext {
    text-shadow: none;
}

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

.nav__list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-white);
    position: relative;
    transition: color var(--transition-base), text-shadow var(--transition-base);
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.6);
}

.header.scrolled .nav__link {
    color: var(--color-text);
    text-shadow: none;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__close {
    display: none;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 10;
}

.nav__cart {
    position: relative;
    color: var(--color-white);
    transition: color var(--transition-base), filter var(--transition-base);
    filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.5));
}

.header.scrolled .nav__cart {
    color: var(--color-text);
    filter: none;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: 50%;
}

.nav__toggle {
    display: none;
    color: var(--color-white);
    cursor: pointer;
    transition: color var(--transition-base), filter var(--transition-base);
    filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.5));
}

.header.scrolled .nav__toggle {
    color: var(--color-text);
    filter: none;
}

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

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(135deg, #1a1209 0%, #2c1810 50%, #1a1209 100%);
    background-image: url('https://images.unsplash.com/photo-1447933601403-0c6688de566e?w=1920&q=80');
    background-size: cover;
    background-position: center;
}

.hero__bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c4a77d' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero__overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(to bottom,
        rgba(0, 0, 0, 0.9) 0%,
        rgba(0, 0, 0, 0.85) 10%,
        rgba(20, 12, 5, 0.65) 35%,
        rgba(44, 24, 16, 0.4) 100%);
}

.hero__content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-2xl) var(--container-padding);
}

.hero__subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}

.hero__title {
    margin-bottom: var(--spacing-lg);
}

.hero__title-chinese {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero__title-english {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 500;
    color: var(--color-white);
    line-height: 1.1;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero__description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

.hero__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.hero__scroll {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-accent);
}

.hero__scroll span {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* ===== INTRO ===== */
.intro .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.intro__text {
    margin-bottom: var(--spacing-lg);
}

.intro__text p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.intro__text p:last-child {
    margin-bottom: 0;
}

.intro__image-wrapper {
    position: relative;
}

.intro__image-wrapper::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    z-index: -1;
}

.intro__image-placeholder {
    aspect-ratio: 4/5;
    background-image: url('https://images.unsplash.com/photo-1495474472287-4d71bcdd2085?w=800&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    font-size: 0.875rem;
}

/* ===== COFFEE GRID ===== */
.coffee-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.coffee-card {
    background-color: var(--color-white);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.coffee-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.coffee-card__image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

.coffee-card__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-cream-dark) 0%, var(--color-accent) 100%);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
}

.coffee-card:nth-child(1) .coffee-card__placeholder {
    background-image: url('https://images.unsplash.com/photo-1504630083234-14187a9df0f5?w=600&q=80');
}

.coffee-card:nth-child(2) .coffee-card__placeholder {
    background-image: url('https://images.unsplash.com/photo-1498804103079-a6351b050096?w=600&q=80');
}

.coffee-card:nth-child(3) .coffee-card__placeholder {
    background-image: url('https://images.unsplash.com/photo-1514432324607-a09d9b4aefdd?w=600&q=80');
}

.coffee-card__tag {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 0.375rem 0.75rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.coffee-card__content {
    padding: var(--spacing-md);
}

.coffee-card__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.coffee-card__notes {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.coffee-card__details {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.coffee-card__origin,
.coffee-card__altitude {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.coffee-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.coffee-card__price {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* ===== APPROACH ===== */
.approach__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.approach__item {
    text-align: center;
}

.approach__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.approach__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.approach__text {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===== SUBSCRIPTION ===== */
.subscription {
    position: relative;
    background-color: var(--color-cream);
}

.subscription__bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1442512595331-e89e73853f31?w=1200&q=80');
    background-size: cover;
    background-position: center;
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
}

.subscription__content {
    position: relative;
    max-width: 600px;
}

.subscription__text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.subscription__benefits {
    margin-bottom: var(--spacing-xl);
}

.subscription__benefits li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.subscription__benefits svg {
    flex-shrink: 0;
    color: var(--color-accent-dark);
}

/* ===== VALUES ===== */
.values {
    background-color: var(--color-primary);
    padding: var(--spacing-2xl) 0;
}

.values__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.values__item {
    padding: var(--spacing-md);
}

.values__number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.values__label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__logo {
    display: inline-flex;
    flex-direction: column;
}

.footer__logo .logo-text {
    color: var(--color-white);
}

.footer__tagline {
    margin-top: var(--spacing-md);
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

.footer__heading {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.footer__list li {
    margin-bottom: var(--spacing-xs);
}

.footer__list a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer__list a:hover {
    color: var(--color-white);
}

.footer__newsletter p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-xs);
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-size: 0.875rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.newsletter-form .btn {
    padding: 0.75rem 1.5rem;
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer__legal a {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer__legal a:hover {
    color: var(--color-white);
}

.footer__copyright {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .footer__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__brand {
        grid-column: span 3;
        margin-bottom: var(--spacing-lg);
    }

    .footer__newsletter {
        grid-column: span 3;
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 1024px) {
    .intro .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .intro__image {
        order: -1;
    }

    .coffee-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .approach__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .values__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --container-padding: 1.5rem;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-base);
    }

    .nav__menu.show {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xl);
    }

    .nav__link {
        font-size: 1.5rem;
        color: var(--color-white);
    }

    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        color: var(--color-white);
        cursor: pointer;
    }

    .nav__toggle {
        display: block;
    }

    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .coffee-grid {
        grid-template-columns: 1fr;
    }

    .subscription__bg {
        display: none;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer__brand,
    .footer__newsletter {
        grid-column: span 2;
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .footer__legal {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .values__grid {
        grid-template-columns: 1fr;
    }

    .footer__grid {
        grid-template-columns: 1fr;
    }

    .footer__brand,
    .footer__newsletter {
        grid-column: span 1;
    }

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

    .newsletter-form .btn {
        width: 100%;
    }
}