/* ========================================
   AMIGO FIEL - Premium Landing Page
   Theme: Warm, cinematic, emotional
   ======================================== */

:root {
    /* Colors */
    --color-cream: #FDF8F3;
    --color-cream-dark: #F5EDE4;
    --color-warm-white: #FFFBF7;
    --color-brown: #3D2314;
    --color-brown-light: #5C3A2A;
    --color-brown-soft: #8B6B5C;
    --color-amber: #D4A574;
    --color-amber-light: #E8C9A8;
    --color-gold: #B8860B;
    --color-sage: #8FA68E;
    --color-sage-light: #B8C9B7;
    --color-rose: #C9A7A7;
    
    /* Typography */
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1280px;
    --container-narrow: 960px;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    
    /* Shadows */
    --shadow-soft: 0 20px 60px rgba(61, 35, 20, 0.08);
    --shadow-medium: 0 25px 80px rgba(61, 35, 20, 0.12);
    --shadow-strong: 0 30px 100px rgba(61, 35, 20, 0.18);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-brown);
    background-color: var(--color-cream);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

/* Typography Helpers */
.section-eyebrow {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-amber);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-brown);
    margin-bottom: 24px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-brown-soft);
    max-width: 600px;
    margin: 0 auto;
}

.section-lead {
    font-size: 20px;
    line-height: 1.6;
    color: var(--color-brown-light);
    margin-bottom: 20px;
}

.center {
    text-align: center;
}

.italic {
    font-style: italic;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.35s var(--ease-out-expo);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-amber) 0%, var(--color-gold) 100%);
    color: var(--color-warm-white);
    box-shadow: 0 10px 30px rgba(184, 134, 11, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(184, 134, 11, 0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--color-brown);
    border: 1.5px solid var(--color-brown-soft);
}

.btn-secondary:hover {
    background: var(--color-brown);
    color: var(--color-cream);
    border-color: var(--color-brown);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s var(--ease-out-expo);
}

.navbar.scrolled {
    padding: 14px 0;
    background: rgba(253, 248, 243, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(61, 35, 20, 0.06);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-warm-white);
    transition: color 0.4s ease;
}

.navbar.scrolled .nav-logo {
    color: var(--color-brown);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 251, 247, 0.85);
    position: relative;
    transition: color 0.3s ease;
}

.navbar.scrolled .nav-links a {
    color: var(--color-brown-soft);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-amber);
    transition: width 0.3s var(--ease-out-expo);
}

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

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

.nav-cta {
    padding: 12px 24px;
    border-radius: 50px;
    background: rgba(255, 251, 247, 0.12);
    border: 1px solid rgba(255, 251, 247, 0.3);
    color: var(--color-warm-white);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.3s var(--ease-out-expo);
}

.navbar.scrolled .nav-cta {
    background: var(--color-brown);
    border-color: var(--color-brown);
    color: var(--color-cream);
}

.nav-cta:hover {
    background: var(--color-amber);
    border-color: var(--color-amber);
    color: var(--color-warm-white);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1544568100-847a948585b9?w=1920&q=85');
    background-size: cover;
    background-position: center;
    transform: scale(1.1);
    animation: heroZoom 20s var(--ease-in-out) infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1.1); }
    to { transform: scale(1.2); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(61, 35, 20, 0.75) 0%,
        rgba(61, 35, 20, 0.45) 50%,
        rgba(61, 35, 20, 0.65) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    padding: 0 24px;
    color: var(--color-warm-white);
}

.hero-eyebrow {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-amber-light);
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(42px, 7vw, 82px);
    font-weight: 500;
    line-height: 1.05;
    margin-bottom: 32px;
}

.hero-title span {
    display: block;
}

.hero-title .italic {
    color: var(--color-amber-light);
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.7;
    color: rgba(255, 251, 247, 0.85);
    margin-bottom: 40px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn-secondary {
    color: var(--color-warm-white);
    border-color: rgba(255, 251, 247, 0.5);
}

.hero-cta .btn-secondary:hover {
    background: var(--color-warm-white);
    color: var(--color-brown);
    border-color: var(--color-warm-white);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 251, 247, 0.6);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

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

@keyframes scrollLine {
    0%, 100% { transform: scaleY(0); transform-origin: top; opacity: 0; }
    50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* Intro Section */
.intro {
    background: var(--color-cream);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.intro-image-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-strong);
}

.intro-image-wrapper img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    transition: transform 0.7s var(--ease-out-expo);
}

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

.intro-badge {
    position: absolute;
    bottom: 30px;
    right: -30px;
    background: var(--color-warm-white);
    padding: 24px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 160px;
}

.badge-number {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    color: var(--color-amber);
    line-height: 1;
}

.badge-text {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-brown-soft);
    margin-top: 6px;
}

.intro-content p {
    margin-bottom: 16px;
    color: var(--color-brown-soft);
}

.intro-quote {
    margin-top: 32px;
    padding: 28px 32px;
    border-left: 3px solid var(--color-amber);
    background: var(--color-warm-white);
    border-radius: 0 16px 16px 0;
    font-family: var(--font-serif);
    font-size: 22px;
    font-style: italic;
    color: var(--color-brown);
    line-height: 1.5;
    box-shadow: var(--shadow-soft);
}

.intro-quote cite {
    display: block;
    margin-top: 16px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-style: normal;
    font-weight: 600;
    color: var(--color-amber);
    letter-spacing: 0.05em;
}

/* Benefits Section */
.benefits {
    background: var(--color-warm-white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
}

.benefit-card {
    background: var(--color-cream);
    border-radius: 24px;
    padding: 48px 36px;
    transition: all 0.4s var(--ease-out-expo);
    border: 1px solid rgba(61, 35, 20, 0.06);
}

.benefit-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-strong);
    background: var(--color-warm-white);
}

.benefit-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--color-amber-light) 0%, var(--color-amber) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-warm-white);
    margin-bottom: 28px;
    transition: transform 0.4s var(--ease-out-expo);
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.1) rotate(-5deg);
}

.benefit-card h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 16px;
    color: var(--color-brown);
}

.benefit-card > p {
    color: var(--color-brown-soft);
    margin-bottom: 24px;
    line-height: 1.7;
}

.benefit-list li {
    padding: 10px 0 10px 28px;
    position: relative;
    color: var(--color-brown-light);
    font-size: 15px;
    border-bottom: 1px solid rgba(61, 35, 20, 0.06);
}

.benefit-list li:last-child {
    border-bottom: none;
}

.benefit-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-amber);
}

/* Science Section */
.science {
    background: var(--color-cream);
}

.science-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.science-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--color-warm-white);
    border-radius: 24px;
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.4s var(--ease-out-expo);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 56px;
    font-weight: 600;
    color: var(--color-amber);
    line-height: 1;
}

.stat-unit {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 500;
    color: var(--color-amber);
    margin-left: 2px;
}

.stat-label {
    display: block;
    margin-top: 12px;
    font-size: 14px;
    color: var(--color-brown-soft);
    line-height: 1.5;
}

/* Quote Section */
.quote-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 160px 0;
}

.quote-bg {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1513360371669-4adf3dd7dff8?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.quote-overlay {
    position: absolute;
    inset: 0;
    background: rgba(61, 35, 20, 0.7);
}

.big-quote {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-warm-white);
    max-width: 900px;
    margin: 0 auto;
}

.quote-mark {
    font-family: var(--font-serif);
    font-size: 160px;
    line-height: 0.5;
    color: var(--color-amber);
    opacity: 0.6;
    display: block;
    margin-bottom: -20px;
}

.big-quote p {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 400;
    line-height: 1.4;
    font-style: italic;
}

/* Stories Section */
.stories {
    background: var(--color-warm-white);
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
}

.story-card {
    background: var(--color-cream);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: all 0.4s var(--ease-out-expo);
}

.story-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.story-image {
    height: 260px;
    overflow: hidden;
}

.story-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--ease-out-expo);
}

.story-card:hover .story-image img {
    transform: scale(1.1);
}

.story-content {
    padding: 32px;
}

.story-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-brown-light);
    margin-bottom: 24px;
    font-style: italic;
}

.story-author strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 18px;
    color: var(--color-brown);
}

.story-author span {
    font-size: 13px;
    color: var(--color-amber);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* CTA Section */
.cta-section {
    background: var(--color-cream);
}

.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.cta-content p {
    color: var(--color-brown-soft);
    margin-bottom: 16px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.cta-visual {
    position: relative;
}

.cta-visual img {
    width: 100%;
    height: 560px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: var(--shadow-strong);
}

.cta-floating-card {
    position: absolute;
    bottom: 30px;
    left: -30px;
    background: var(--color-warm-white);
    padding: 20px 28px;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-amber);
    font-weight: 600;
    font-size: 14px;
}

.cta-floating-card svg {
    flex-shrink: 0;
}

/* Footer */
.footer {
    background: var(--color-brown);
    color: var(--color-cream);
    padding: 80px 0 32px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 251, 247, 0.1);
    margin-bottom: 32px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 251, 247, 0.6);
    max-width: 280px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 251, 247, 0.7);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-amber);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255, 251, 247, 0.5);
}

.footer-credit {
    font-weight: 600;
    color: var(--color-amber);
}

/* Scroll Reveal Animations */
.reveal-text,
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 0.8s var(--ease-out-expo);
}

.reveal-text {
    transform: translateY(40px);
}

.reveal-up {
    transform: translateY(60px);
}

.reveal-left {
    transform: translateX(-60px);
}

.reveal-right {
    transform: translateX(60px);
}

.reveal-text.visible,
.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translate(0);
}

/* Staggered hero text animation */
.hero-title .reveal-text {
    transition-delay: calc(var(--index, 0) * 0.12s);
}

.hero-eyebrow.reveal-text { --index: 0; }
.hero-title .reveal-text:nth-child(1) { --index: 1; }
.hero-title .reveal-text:nth-child(2) { --index: 2; }
.hero-title .reveal-text:nth-child(3) { --index: 3; }
.hero-title .reveal-text:nth-child(4) { --index: 4; }
.hero-subtitle.reveal-text { --index: 5; transition-delay: 0.6s; }
.hero-cta.reveal-text { --index: 6; transition-delay: 0.8s; }

/* Initial visible state for hero */
.hero .reveal-text.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    :root {
        --section-padding: 96px;
    }
    
    .intro-grid,
    .science-grid,
    .cta-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .intro-visual {
        order: -1;
    }
    
    .intro-badge {
        right: 20px;
    }
    
    .cta-floating-card {
        left: 20px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 72px;
    }
    
    .nav-links,
    .nav-cta {
        display: none;
    }
    
    .hero-title {
        font-size: clamp(32px, 10vw, 56px);
    }
    
    .benefits-grid,
    .stories-grid,
    .science-stats {
        grid-template-columns: 1fr;
    }
    
    .intro-image-wrapper img,
    .cta-visual img {
        height: 400px;
    }
    
    .intro-badge {
        position: relative;
        right: auto;
        bottom: auto;
        margin-top: -40px;
        margin-left: 20px;
        width: fit-content;
    }
    
    .cta-floating-card {
        left: 20px;
        bottom: 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 32px;
    }
    
    .footer-links {
        flex-wrap: wrap;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: 13px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .reveal-text,
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
    }
}