/* ===================================
   Coffee Tribute - Main Stylesheet
   Mobile-first, performance-optimized
   =================================== */

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

:root {
    /* Colors - matching logo aesthetic */
    --sage-green: #6B8E6F;
    --sage-green-dark: #5A7A5E;
    --cream: #F5F5F0;
    --warm-brown: #4A3F35;
    --dark-bg: #2C2520;
    --white: #FFFFFF;
    --text-primary: #2C2520;
    --text-secondary: #6B6B6B;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", serif;

    /* Spacing */
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ================
   HEADER
   ================ */

.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.4), transparent);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.logo img {
    height: 40px;
    width: auto;
    filter: brightness(1.1);
}

@media (min-width: 768px) {
    .logo img {
        height: 50px;
    }
}

/* Navigation */
.nav-list {
    display: none;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .nav-list {
        display: flex;
    }
}

.nav-list a {
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: background-color var(--transition-fast);
}

.nav-list a:hover {
    background-color: rgba(255,255,255,0.15);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.cart-link {
    position: relative;
    color: var(--white);
    padding: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.cart-link:hover {
    transform: scale(1.1);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    background-color: var(--sage-green);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 10px;
    line-height: 1;
}

/* ================
   HERO SECTION
   ================ */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.hero-content {
    background: rgba(44, 37, 32, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: var(--spacing-lg);
    border-radius: 12px;
}

@media (min-width: 768px) {
    .hero-content {
        padding: var(--spacing-xl);
    }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4rem;
    }
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--cream);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.35rem;
    }
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-primary {
    background-color: var(--sage-green);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(107, 142, 111, 0.4);
}

.cta-primary:hover {
    background-color: var(--sage-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(107, 142, 111, 0.5);
}

.cta-primary svg {
    transition: transform var(--transition-medium);
}

.cta-primary:hover svg {
    transform: translateX(4px);
}

/* Social Proof */
.social-proof {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.2);
}

.stars {
    color: #FFD700;
    font-size: 1.2rem;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
}

.proof-text {
    color: var(--cream);
    font-size: 0.95rem;
    font-weight: 500;
}

/* ================
   FEATURES SECTION
   ================ */

.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
}

.feature-card {
    text-align: center;
    padding: var(--spacing-md);
}

.feature-icon {
    color: var(--sage-green);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--warm-brown);
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* ================
   FOOTER
   ================ */

.footer {
    background-color: var(--dark-bg);
    color: var(--cream);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 3fr;
        gap: var(--spacing-xl);
    }
}

.footer-brand img {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(1.1);
}

.footer-tagline {
    color: rgba(245, 245, 240, 0.7);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.5px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-column a {
    color: rgba(245, 245, 240, 0.8);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--sage-green);
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: rgba(245, 245, 240, 0.6);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--sage-green);
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* ================
   UTILITIES
   ================ */

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Loading State */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}