/* =====================================================================
   Braeden's Learning Hub
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0a0f1a;
  --bg-card:    #111827;
  --bg-hover:   #1a2235;
  --border:     #1f2d40;
  --text:       #e2e8f0;
  --text-muted: #64748b;
  --accent:     #38bdf8;
  --accent-dim: rgba(56, 189, 248, 0.12);
  --code-bg:    #0d1424;
  --radius:     4px;
  --shadow:     0 8px 32px rgba(0,0,0,0.5);
}

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* =====================================================================
   Header
   ===================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1.1rem 0;
  transition: background 0.3s, border-color 0.3s;
}

.site-header.scrolled {
  background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
}

.site-title:hover { text-decoration: none; color: var(--accent); }

.site-nav a {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem;
  border-radius: 0;
  transition: color 0.15s;
}

.site-nav a:hover { color: var(--text); text-decoration: none; }

/* =====================================================================
   Hero (standalone landing page)
   ===================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: #07090f;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 10% 50%, rgba(20, 184, 166, 0.22) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 50%, rgba(139, 92, 246, 0.20) 0%, transparent 60%),
    radial-gradient(ellipse 80% 40% at 50% 100%, rgba(56, 189, 248, 0.08) 0%, transparent 55%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  text-align: center;
  padding: 0 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 4px;
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-title {
  font-size: clamp(4rem, 10vw, 7.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.hero-name {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-dot {
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.hero-role {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #2dd4bf;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2.75rem;
  line-height: 1.8;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* =====================================================================
   Weeks listing page and activities page
   ===================================================================== */

.weeks-page {
  padding: 8rem 0 6rem;
  min-height: 100vh;
}

.page-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.activity-group {
  margin-bottom: 3rem;
}

.activity-group h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* =====================================================================
   Buttons
   ===================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.9rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}

.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #07090f;
}

.btn-primary:hover { background: #7dd3fc; box-shadow: 0 6px 24px rgba(56, 189, 248, 0.40); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.2);
}

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

.site-main { flex: 1; }

/* =====================================================================
   Phase sections and week cards
   ===================================================================== */

.phase-section { margin: 3rem 0; }

.phase-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.phase-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.phase-header h2 {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.phase-header .phase-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-left: 0.3rem;
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.week-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.week-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-accent, var(--accent));
  opacity: 0;
  transition: opacity 0.2s;
}

.week-card:hover {
  border-color: var(--card-accent, var(--accent));
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  text-decoration: none;
  background: var(--bg-hover);
}

.week-card:hover::after { opacity: 1; }

.week-card-num {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.week-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.week-card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 0.6rem;
}

/* Locked week card */

.week-card.locked {
  opacity: 0.45;
  cursor: default;
  pointer-events: auto;
}

.week-card.locked:hover {
  transform: none;
  border-color: var(--border);
  background: var(--bg-card);
  box-shadow: none;
}

.week-card.locked:hover::after { opacity: 0; }

.week-card.locked .week-card-date {
  color: var(--text-muted);
  font-style: italic;
}

/* Locked week page */

.locked-page {
  text-align: center;
  padding: 4rem 2rem;
  max-width: 520px;
  margin: 0 auto;
}

.locked-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.locked-msg {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.locked-date {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

.locked-date strong {
  color: var(--accent);
}

/* =====================================================================
   Individual week page
   ===================================================================== */

.container.week-page-container { padding-top: 7rem; padding-bottom: 5rem; }

.week-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  padding-top: 7rem;
}

.week-breadcrumb a { color: var(--text-muted); }
.week-breadcrumb a:hover { color: var(--text); text-decoration: none; }

.phase-badge {
  padding: 0.2rem 0.75rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.week-header {
  border-left: 3px solid var(--accent);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2.5rem;
  background: var(--bg-card);
  border-radius: 0;
}

.week-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.week-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 0.3rem;
}

.week-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =====================================================================
   Content body
   ===================================================================== */

.content-body { max-width: 760px; }

.content-body h1,
.content-body h2,
.content-body h3,
.content-body h4 {
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.content-body h1 { font-size: 1.5rem; }
.content-body h2 { font-size: 1.2rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.content-body h3 { font-size: 1.05rem; color: #94a3b8; }

.content-body p,
.content-body li { margin-bottom: 0.6rem; color: var(--text); }

.content-body ul,
.content-body ol { padding-left: 1.75rem; margin-bottom: 1.1rem; }

.content-body li { margin-bottom: 0.4rem; }

.content-body strong { color: #fff; font-weight: 600; }
.content-body em { color: #94a3b8; font-style: italic; }

.content-body a { color: var(--accent); }
.content-body a:hover { text-decoration: underline; }

.content-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.content-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  overflow-x: auto;
  display: block;
}

.content-body th {
  background: var(--bg-hover);
  color: var(--text);
  padding: 0.65rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1px solid var(--border);
}

.content-body td {
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
}

.content-body tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

.content-body code {
  font-family: "Fira Code", "Consolas", monospace;
  font-size: 0.84em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15em 0.45em;
  color: #93c5fd;
}

.content-body pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  overflow-x: auto;
  margin: 1.4rem 0;
  font-size: 0.875rem;
  line-height: 1.65;
}

.content-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: #cbd5e1;
  font-size: inherit;
}

.content-body blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-dim);
  padding: 1rem 1.4rem;
  border-radius: 0;
  margin: 1.5rem 0;
  color: var(--text);
}

.content-body blockquote p { margin: 0; }

/* =====================================================================
   Week nav
   ===================================================================== */

.week-nav {
  margin-top: 3.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

/* =====================================================================
   Footer
   ===================================================================== */

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.02em;
}

/* =====================================================================
   Responsive
   ===================================================================== */

@media (max-width: 640px) {
  .hero-title { font-size: 3.5rem; }
  .week-grid { grid-template-columns: 1fr; }
  .week-header h1 { font-size: 1.4rem; }
  .content-body h1 { font-size: 1.3rem; }
  .content-body h2 { font-size: 1.1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .weeks-page { padding: 6rem 0 4rem; }
}