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

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a25;
  --border: #1e1e2e;
  --text: #e0e0e8;
  --text-muted: #8888a0;
  --accent: #6c63ff;
  --accent-glow: rgba(108, 99, 255, 0.15);
  --green: #34d399;
  --yellow: #fbbf24;
  --blue: #60a5fa;
  --red: #f87171;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.logo-dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
  color: var(--text);
  text-decoration: none;
}

.nav-link-external::after {
  content: '\2197';
  margin-left: 0.25rem;
  font-size: 0.75rem;
}

/* === Hero === */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* === Sections === */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* === Dashboard Stats === */
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === Projects Grid === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: background 0.2s, border-color 0.2s;
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.project-name {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
}

.project-domain {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.project-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.project-category {
  display: inline-block;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

/* === Progress Bar === */
.progress-container {
  margin-bottom: 1rem;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease;
  background: linear-gradient(90deg, var(--accent), var(--green));
}

.progress-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* === Goals List === */
.goals-list {
  list-style: none;
  margin-top: 0.75rem;
}

.goal-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  font-size: 0.85rem;
}

.goal-status {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.goal-status.pending { background: var(--text-muted); }
.goal-status.in-progress { background: var(--yellow); }
.goal-status.done { background: var(--blue); }
.goal-status.validated { background: var(--green); }

.goal-title {
  color: var(--text);
}

.goal-title.pending { opacity: 0.5; }

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.project-meta a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* === Research === */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.research-placeholder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  grid-column: 1 / -1;
}

.research-hint {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  font-style: italic;
}

/* === Footer === */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  margin-top: 0.5rem;
}

.footer-links a {
  font-size: 0.8rem;
}

/* === Loading / Error === */
.loading-message {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem;
  grid-column: 1 / -1;
}

.error-message {
  color: var(--red);
  text-align: center;
  padding: 2rem;
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.no-projects {
  color: var(--text-muted);
  text-align: center;
  padding: 2rem;
  grid-column: 1 / -1;
}

/* === Responsive === */
@media (max-width: 640px) {
  .hero h1 { font-size: 1.75rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .research-grid { grid-template-columns: 1fr; }
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
}