/* ========================================
   Palidos - AI-Powered Qualitative Analytics
   Dark Academic / Modern AI Aesthetic
   ======================================== */

:root {
    --bg-primary: #0f1115;
    --bg-secondary: #161920;
    --text-primary: #e8eaed;
    --text-secondary: #a0a4ab;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --border: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(255, 255, 255, 0.04);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Dynamic Background */
.dynamic-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background:
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.12) 0%, transparent 40%),
        linear-gradient(135deg, #0f1115 0%, #1a1d24 100%);
    z-index: -1;
    animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
    0% { transform: scale(1) rotate(0deg); }
    100% { transform: scale(1.1) rotate(3deg); }
}

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; position: relative; }
.alt-bg { background-color: var(--bg-secondary); }

/* Typography */
h1, h2, h3 { font-family: 'Playfair Display', serif; line-height: 1.2; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); margin-bottom: 1.5rem; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
p { color: var(--text-secondary); max-width: 70ch; }
.accent { color: var(--accent); }

/* Navigation */
header {
    position: fixed; top: 0; width: 100%; z-index: 100;
    background: rgba(15, 17, 21, 0.85); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
.logo { font-family: 'Playfair Display', serif; font-size: 1.5rem; color: var(--text-primary); text-decoration: none; font-weight: 600; }
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.95rem; transition: var(--transition); }
.nav-links a:hover { color: var(--accent); }

/* Buttons */
.btn {
    display: inline-block; padding: 0.85rem 1.75rem; border-radius: 8px; font-weight: 500; text-decoration: none; cursor: pointer; transition: var(--transition); border: none; font-size: 1rem;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4); }
.btn-secondary { border: 1px solid var(--border); color: var(--text-primary); background: transparent; }
.btn-secondary:hover { background: var(--card-bg); border-color: var(--accent); }

/* Hero */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    background-image: url('DSCF2400.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(15,17,21,0.6), rgba(15,17,21,0.9));
    z-index: 1;
}
#hero .container { position: relative; z-index: 2; }

/* Section Title */
.section-title { text-align: center; margin-bottom: 0.75rem; }
.section-subtitle { text-align: center; color: var(--text-secondary); margin: 0 auto 3rem; font-size: 1.1rem; }

/* Vision Grid */
.vision-grid, .services-grid, .metrics-grid { display: grid; gap: 2rem; margin-top: 3rem; }
.vision-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.value-card { background: var(--card-bg); padding: 2.5rem; border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.value-card:hover { transform: translateY(-5px); border-color: rgba(59, 130, 246, 0.3); box-shadow: var(--shadow); }
.icon { font-size: 2.5rem; margin-bottom: 1rem; }

/* Services / Platform Cards */
.services-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.service-card { background: var(--card-bg); padding: 2.5rem; border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-card h3 { margin-bottom: 1rem; color: var(--text-primary); font-size: 1.5rem; }
.service-card ul { list-style: none; padding-left: 0; }
.service-card li { position: relative; padding-left: 1.5rem; margin-bottom: 0.75rem; color: var(--text-secondary); }
.service-card li::before { content: "\2192"; position: absolute; left: 0; color: var(--accent); font-weight: bold; }
.service-card p { margin-bottom: 0.75rem; }

/* Metrics */
.metrics-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); text-align: center; margin-top: 3rem; }
.metric-item { background: var(--card-bg); padding: 2.5rem 1.5rem; border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.metric-value { display: block; font-size: 3rem; font-weight: 700; color: var(--accent); margin-bottom: 0.5rem; font-family: 'Playfair Display', serif; }
.metric-label { color: var(--text-secondary); font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px; }

/* Contact */
.contact-wrapper { max-width: 700px; margin: 0 auto; text-align: center; }
.contact-form { display: grid; gap: 1.5rem; margin-top: 2.5rem; text-align: left; }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--text-primary); font-weight: 500; }
.form-group input, .form-group textarea { width: 100%; padding: 1rem; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 8px; color: var(--text-primary); font-family: inherit; transition: var(--transition); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); background: rgba(59, 130, 246, 0.05); }
.full-width { grid-column: 1 / -1; }
.contact-direct { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--border); color: var(--text-secondary); }
.contact-direct a { color: var(--accent); text-decoration: none; }

/* Footer */
footer { padding: 3rem 0; background: rgba(0,0,0,0.2); border-top: 1px solid var(--border); margin-top: 4rem; }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: 0.9rem; color: var(--text-secondary); }

/* Scroll Reveal Animation */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-actions { flex-direction: column; align-items: center; }
    .section { padding: 4rem 0; }
    .footer-content { flex-direction: column; text-align: center; }
}