/* =====================================================
   Theme Variables
   ===================================================== */
:root {
  --bg: #0b1220;
  --panel: #0f172a;
  --soft: #111a2e;
  --text: #e6e8ee;
  --muted: #a1aab6;
  --accent: #60a5fa;
  --border: #1e293b;
}

[data-theme="light"] {
  --bg: #f9fafb;
  --panel: #ffffff;
  --soft: #fdfdfd;
  --text: #111827;
  --muted: #374151;
  --accent: #2563eb;
  --border: #d1d5db;
}

/* =====================================================
   Base Styles
   ===================================================== */
body {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, Segoe UI, Roboto, Arial, sans-serif;
}

/* =====================================================
   Navbar
   ===================================================== */
.navbar {
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(6px);
}

[data-theme="light"] .navbar {
  background: var(--panel);
}

.nav-link {
  color: var(--text) !important;
  opacity: 0.9;
}

.nav-link.active {
  color: var(--accent) !important;
  opacity: 1;
}

.navbar-toggler {
  border-color: var(--border);
}

.navbar-toggler-icon {
  filter: invert(1);
}

[data-theme="light"] .navbar-toggler-icon {
  filter: none;
}

/* =====================================================
   Hero
   ===================================================== */
.hero {
  background: linear-gradient(135deg, #0f172a, #0b1220);
  color: var(--text);
  padding: 96px 16px 64px;
  text-align: center;
}

[data-theme="light"] .hero {
  background: linear-gradient(135deg, #f9fafb, #e5e7eb);
}

.hero .logo img {
  max-height: 100px;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, .35));
}

/* =====================================================
   Buttons
   ===================================================== */
.btn-accent {
  background-color: var(--accent) !important;
  color: #fff !important;
  border: none !important;
}

.btn-accent:hover {
  filter: brightness(0.95);
}

.btn-outline-accent {
  color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.btn-outline-accent:hover {
  background-color: var(--accent) !important;
  color: #fff !important;
}

/* =====================================================
   Sections & Cards
   ===================================================== */
.section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}

.card-shadow {
  box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
}

.competency-card {
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  height: 100%;
}

.competency-card i {
  color: var(--accent);
}

.competency-card h5 {
  font-weight: 600;
}

.competency-card p {
  line-height: 1.5;
}

.competency-card strong {
  color: var(--text);
  font-weight: 600;
}

#summary a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

#summary a:hover {
  text-decoration: underline;
}

/* =====================================================
   Experience Timeline
   ===================================================== */
.experience-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.experience-timeline .t {
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.experience-timeline .t.current {
  border-left: 4px solid var(--accent);
  background: linear-gradient(to right,
      rgba(96, 165, 250, 0.08),
      transparent);
  box-shadow: 0 6px 18px rgba(96, 165, 250, 0.15);
}

/* =====================================================
   Utilities
   ===================================================== */
.muted {
  color: var(--muted);
}

.anchor-space {
  scroll-margin-top: 80px;
}

.pdf-embed {
  width: 100%;
  height: 75vh;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #000;
}

footer {
  background: var(--panel);
  color: var(--muted);
  padding: 18px 0;
  border-top: 1px solid var(--border);
}

footer img {
  max-height: 26px;
  margin-right: 8px;
  vertical-align: middle;
}