/* ============================================
   PhiloAgents - Ancient World Aesthetic
   Matching the pixel-art game style
   ============================================ */

:root {
    /* Colors from the game */
    --grass: #5a9f4c;
    --grass-dark: #4a8a3f;
    --path: #d4c4a0;
    --path-dark: #b8a882;
    --marble: #f5f0e8;
    --marble-dark: #e8e0d0;
    --cherry: #ffb7c5;
    --cherry-dark: #e89aab;
    --sky: #87ceeb;
    --water: #6bb3d9;
    
    /* UI colors */
    --dialog-bg: #2a3a50;
    --dialog-border: #4a6080;
    --dialog-text: #f5f5f0;
    --accent: #f0c040;
    --accent-hover: #ffda6a;
    
    /* Text */
    --text: #3a3a3a;
    --text-light: #6a6a6a;
    
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.2);
    
    --font: 'Nunito', -apple-system, sans-serif;
    --font-pixel: 'Press Start 2P', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--marble);
    overflow-x: hidden;
}

/* Decorative background */
.page-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: 
        linear-gradient(180deg, var(--sky) 0%, var(--marble) 40%),
        var(--marble);
}

.page-bg::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(180deg, transparent 0%, var(--grass) 100%);
    opacity: 0.1;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: rgba(245, 240, 232, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--path-dark);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--dialog-bg);
}

.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 2px solid var(--path-dark);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-menu a {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-light);
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: var(--grass-dark);
}

.nav-btn {
    padding: 8px 16px;
    background: var(--dialog-bg);
    color: white !important;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: var(--dialog-border);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    border: 3px solid transparent;
}

.btn-icon {
    font-size: 12px;
}

.btn-primary {
    background: var(--accent);
    color: var(--dialog-bg);
    border-color: #d4a030;
    box-shadow: 0 4px 0 #b8902a;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 0 #b8902a;
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 0 #b8902a;
}

.btn-secondary {
    background: var(--marble);
    color: var(--dialog-bg);
    border-color: var(--path-dark);
    box-shadow: 0 4px 0 var(--path-dark);
}

.btn-secondary:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--path-dark);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 140px 24px 60px;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(90, 159, 76, 0.15);
    border: 2px solid var(--grass);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    color: var(--grass-dark);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(32px, 6vw, 52px);
    font-weight: 800;
    line-height: 1.15;
    color: var(--dialog-bg);
    margin-bottom: 20px;
}

.highlight {
    color: var(--grass-dark);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: var(--cherry);
    z-index: -1;
    border-radius: 4px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-image {
    margin: 0 auto 40px;
    max-width: 700px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 4px solid var(--dialog-bg);
    box-shadow: var(--shadow-lg);
}

.hero-image img {
    width: 100%;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-family: var(--font-pixel);
    font-size: 24px;
    color: var(--accent);
    text-shadow: 2px 2px 0 #b8902a;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-alt {
    background: linear-gradient(180deg, var(--grass) 0%, var(--grass-dark) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 800;
    color: var(--dialog-bg);
    margin-bottom: 12px;
}

.section-alt .section-header h2 {
    color: white;
    text-shadow: 2px 2px 0 var(--grass-dark);
}

.section-header p {
    font-size: 16px;
    color: var(--text-light);
}

.section-alt .section-header p {
    color: rgba(255,255,255,0.85);
}

/* Dialogue Box */
.dialogue-box {
    background: var(--dialog-bg);
    border: 4px solid var(--dialog-border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 48px;
    color: var(--dialog-text);
    box-shadow: var(--shadow);
}

.dialogue-box h2 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--accent);
}

.dialogue-box p {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 12px;
}

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

.dialogue-box strong {
    color: var(--cherry);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-card {
    background: white;
    border: 3px solid var(--path-dark);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 0 var(--path-dark);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 0 var(--path-dark);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dialog-bg);
}

.feature-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

/* Philosopher Grid */
.phil-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.phil-card {
    background: var(--marble);
    border: 3px solid var(--path-dark);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: transform 0.2s;
    box-shadow: 0 4px 0 rgba(0,0,0,0.2);
}

.phil-card:hover {
    transform: translateY(-4px) rotate(-1deg);
}

.phil-avatar {
    font-size: 32px;
    margin-bottom: 8px;
}

.phil-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dialog-bg);
    margin-bottom: 4px;
}

.phil-era {
    display: block;
    font-family: var(--font-pixel);
    font-size: 8px;
    color: var(--grass-dark);
    margin-bottom: 8px;
}

.phil-card p {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.5;
}

/* Tech Strip */
.tech-strip {
    padding: 24px 0;
    background: var(--dialog-bg);
    border-top: 4px solid var(--dialog-border);
    border-bottom: 4px solid var(--dialog-border);
}

.tech-strip .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.tech-label {
    font-size: 12px;
    color: var(--dialog-text);
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.tech-logos {
    display: flex;
    align-items: center;
    gap: 24px;
}

.tech-logos img {
    height: 22px;
    width: auto;
    opacity: 0.8;
    filter: brightness(1.2);
}

.tech-logos span {
    font-family: var(--font-pixel);
    font-size: 10px;
    color: var(--dialog-text);
    opacity: 0.7;
}

/* Learn Section */
.learn-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.learn-text h2 {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 800;
    color: var(--dialog-bg);
    margin-bottom: 16px;
}

.learn-text > p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.module-list {
    list-style: none;
    margin-bottom: 28px;
}

.module-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 2px dashed var(--path-dark);
    font-weight: 600;
    color: var(--dialog-bg);
}

.module-list span {
    font-family: var(--font-pixel);
    font-size: 10px;
    color: var(--grass-dark);
}

.learn-buttons {
    display: flex;
    gap: 12px;
}

.learn-image img {
    border-radius: var(--radius);
    border: 4px solid var(--dialog-bg);
    box-shadow: var(--shadow);
}

/* CTA */
.cta {
    padding: 80px 0;
    background: 
        linear-gradient(180deg, var(--cherry) 0%, var(--cherry-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--dialog-bg);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 16px;
    color: var(--dialog-bg);
    opacity: 0.8;
    margin-bottom: 28px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Footer */
.footer {
    padding: 48px 0 24px;
    background: var(--dialog-bg);
    color: var(--dialog-text);
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 48px;
    margin-bottom: 32px;
}

.footer-brand img {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.footer-col h5 {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: 12px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--dialog-text);
    opacity: 0.7;
    padding: 4px 0;
    transition: opacity 0.2s;
}

.footer-col a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 2px solid var(--dialog-border);
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.6;
}

.footer-bottom a {
    color: var(--accent);
    opacity: 1;
}

/* Responsive */
@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .phil-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .learn-layout {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-items: center;
    }
}

@media (max-width: 640px) {
    .nav-menu {
        display: none;
    }
    
    .hero-buttons,
    .learn-buttons,
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .feature-grid,
    .phil-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-image {
    animation: float 4s ease-in-out infinite;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--dialog-bg);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--marble);
}

::-webkit-scrollbar-thumb {
    background: var(--path-dark);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--grass);
}