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

:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-primary: #1e3a5f;
  --color-primary-light: #2d5a8e;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-footer-bg: #0f172a;
  --color-footer-text: #cbd5e1;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.1);
  --transition: .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }
ul { list-style: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== Navbar ===== */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.15rem; color: var(--color-primary); }
.nav-brand:hover { color: var(--color-primary); }
.nav-logo { width: 32px; height: 32px; border-radius: 6px; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--color-text-muted); font-weight: 500; font-size: .95rem; padding: .25rem 0; border-bottom: 2px solid transparent; transition: all var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); border-bottom-color: var(--color-accent); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: .5rem; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); margin: 5px 0; border-radius: 2px; transition: var(--transition); }

/* ===== Hero ===== */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  background: linear-gradient(135deg, #eef2ff 0%, #f0f9ff 50%, #f0fdf4 100%);
}
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; color: var(--color-primary); line-height: 1.2; margin-bottom: 1rem; }
.hero-sub { font-size: 1.15rem; color: var(--color-text-muted); max-width: 600px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; padding: .75rem 1.75rem;
  font-weight: 600; font-size: .95rem; border-radius: 8px;
  transition: all var(--transition); cursor: pointer; border: 2px solid transparent;
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: var(--color-accent); color: var(--color-accent); background: transparent; }
.btn-outline:hover { background: var(--color-accent); color: #fff; transform: translateY(-1px); }

/* ===== Grids ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }

/* ===== Cards ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.card-link { display: block; color: var(--color-text); }
.card-link:hover { color: var(--color-text); }
.card-icon { font-size: 2rem; margin-bottom: .75rem; }
.card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: .5rem; color: var(--color-primary); }
.card p { color: var(--color-text-muted); font-size: .95rem; line-height: 1.6; }
.card-cta { display: inline-block; margin-top: 1rem; font-weight: 600; font-size: .9rem; color: var(--color-accent); }
.card-badge {
  display: inline-block; padding: .25rem .75rem; font-size: .75rem; font-weight: 600;
  background: #dbeafe; color: var(--color-accent); border-radius: 20px; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .05em;
}

.teaser { border: 2px dashed var(--color-border); background: linear-gradient(135deg, #fafbff, #f8fafc); }
.teaser:hover { border-color: var(--color-accent); }

/* ===== Sections ===== */
.highlights { padding: 4rem 0; }
.coming-soon { padding: 4rem 0; text-align: center; }
.coming-soon h2 { font-size: 1.8rem; color: var(--color-primary); margin-bottom: .5rem; }
.section-sub { color: var(--color-text-muted); margin-bottom: 2rem; }

/* ===== Team ===== */
.team-section { padding: 4rem 0; }
.team-section h2 { font-size: 1.8rem; color: var(--color-primary); text-align: center; margin-bottom: .5rem; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.team-card { text-align: center; padding: 2rem; }
.team-avatar {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 1rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #fff; font-weight: 700;
}
.team-card h3 { font-size: 1.1rem; margin-bottom: .25rem; }
.team-card p { font-size: .9rem; color: var(--color-text-muted); }

/* ===== Projects Page ===== */
.page-header { padding: 3rem 0 2rem; text-align: center; background: linear-gradient(135deg, #eef2ff 0%, #f0f9ff 100%); }
.page-header h1 { font-size: 2rem; color: var(--color-primary); margin-bottom: .5rem; }
.page-header p { color: var(--color-text-muted); }
.projects-section { padding: 3rem 0 4rem; }
.project-card { display: flex; flex-direction: column; gap: .5rem; }
.project-card .card-cta { margin-top: auto; }

/* ===== Contact ===== */
.contact-section { padding: 4rem 0; text-align: center; }
.contact-section h2 { font-size: 1.8rem; color: var(--color-primary); margin-bottom: 1rem; }
.contact-email { font-size: 1.2rem; font-weight: 600; }

/* ===== Footer ===== */
.footer { background: var(--color-footer-bg); color: var(--color-footer-text); padding: 3rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer h4 { color: #fff; font-size: .95rem; margin-bottom: .75rem; }
.footer p, .footer li { font-size: .9rem; line-height: 1.8; }
.footer a { color: var(--color-footer-text); }
.footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1e293b; padding-top: 1.5rem; text-align: center; font-size: .85rem; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--color-border); padding: 1rem 1.5rem; gap: 0;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .75rem 0; }
  .grid-3, .grid-2, .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero { padding: 3rem 0 2.5rem; }
}