/* ===== Variables ===== */
:root {
  /* Light Theme */
  --bg: #ffffff;
  --text: #1a1a1a;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --surface: #f8fafc;
  --surface-2: #f3f6fb;
  --border: #e2e8f0;
  --shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
  --muted: #667085;
}

/* ===== Base Styles ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  transition: background 0.3s ease;
}

.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* ===== Navigation ===== */
.nav a.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: .25rem .5rem;
  border-radius: 999px;
}

.nav a.nav-link::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: -6px;
  height: 2px; background: transparent;
  transition: background 0.25s ease;
}
.nav a.nav-link:hover::after { background: var(--primary); }
.nav a.nav-link.active, .nav a.nav-link[aria-current="page"] {
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
}

/* ===== Hero/Panel Utilities (used across pages) ===== */
.panel {
  background: radial-gradient(1200px 400px at 20% -10%, #e8f0ff 0%, rgba(232,240,255,0.3) 35%, transparent 70%),
              linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
}
.section-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
  border: 0;
}

/* Profile image */
.profile-pic { width: 220px; height: 220px; object-fit: cover; }
.ringed {
  box-shadow: 0 0 0 6px #fff, 0 0 0 10px rgba(37, 99, 235, 0.15);
}

/* Icons */
.icon { width: 30px; height: 30px; transition: transform 0.3s ease; display: block; }
.icon:hover { transform: scale(1.12); }
.icon-link { display: inline-flex; align-items: center; justify-content: center; }

/* Mini highlight cards (home) */
.mini-card {
  display: flex; align-items: center; gap: .75rem;
  padding: .9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.mini-card i { font-size: 1.25rem; color: var(--primary); }

/* ===== Buttons ===== */
.btn-cta {
  background: var(--text); color: #fff;
  border: 1px solid var(--text);
}
.btn-cta:hover { background: #000; color: #fff; border-color: #000; }

.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--text); }

/* ===== Projects ===== */
.project-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.25rem 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.project-icon {
  font-size: 1.5rem; color: var(--primary);
  flex: 0 0 auto; margin-top: 0.25rem;
}
.tag {
  display: inline-block;
  padding: .2rem .6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: .8rem;
  line-height: 1;
  color: var(--muted);
  background: #fff;
}

/* ===== Footer ===== */
.footer {
  padding: 2.25rem 0;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

/* ===== Forms (contact) ===== */
form.panel .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 .2rem rgba(37, 99, 235, 0.15);
}

/* === Media Queries === */
@media (max-width: 992px) {
  .profile-pic { width: 200px; height: 200px; }
}
@media (max-width: 768px) {
  .profile-pic { width: 180px; height: 180px; }
  .navbar-collapse { flex-basis: 100%; text-align: center; }
  .nav { flex-direction: column; gap: .5rem; width: 100%; }
  .nav a.nav-link { padding: .5rem .75rem; }
}