@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #5b5ef4;
  --primary-dark: #4a4dd4;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark:  #0f1117;
  --dark2: #16191f;
  --dark3: #1e2229;
  --border: #2a2d35;
  --border2: #353840;
  --text: #dde1e8;
  --text-muted: #7a7f8a;
  --card-bg: #16191f;
  --gradient: linear-gradient(135deg, #5b5ef4 0%, #7c3aed 100%);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: #3a3d48; border-radius: 3px; }

/* ===== NAVBAR ===== */
.navbar {
  background: rgba(15,17,23,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 2.5rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.navbar-brand .logo-icon {
  width: 34px; height: 34px;
  background: var(--gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 7px;
  transition: all 0.2s;
}

.nav-links a:hover { color: var(--text); background: var(--dark3); }
.nav-links a.active { color: var(--text); background: var(--dark3); }

.nav-xp {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--warning);
}

.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-muted); border-radius: 2px; }

/* ===== HERO ===== */
.hero {
  min-height: calc(100vh - 62px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 5rem 2rem;
}

/* Subtle radial glow behind hero */
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 500px;
  background: radial-gradient(ellipse at center, rgba(91,94,244,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.particles {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: 0.2;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.2; }
  90% { opacity: 0.2; }
  100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}

.hero-content { position: relative; z-index: 2; max-width: 760px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(91,94,244,0.1);
  border: 1px solid rgba(91,94,244,0.25);
  color: #9b9cf8;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  animation: fade-in-down 0.5s ease;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  animation: fade-in-up 0.5s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
  animation: fade-in-up 0.5s ease 0.15s both;
}

.hero-btns {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fade-in-up 0.5s ease 0.2s both;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: 'Inter', sans-serif;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 2px 12px rgba(91,94,244,0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(91,94,244,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border2);
}

.btn-outline:hover {
  color: var(--text);
  border-color: #4a4d58;
  background: var(--dark3);
}

.btn-success {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
  font-weight: 700;
  box-shadow: 0 2px 12px rgba(34,197,94,0.25);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(34,197,94,0.35);
}

.btn-sm { padding: 0.45rem 1rem; font-size: 0.82rem; border-radius: 7px; }

.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none !important; }

/* ===== STATS SECTION ===== */
.stats-section {
  padding: 4.5rem 2rem;
  background: var(--dark2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 1.75rem 1.5rem;
  background: var(--dark3);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover { transform: translateY(-3px); border-color: var(--border2); }
.stat-icon { font-size: 2rem; margin-bottom: 0.4rem; }
.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { color: var(--text-muted); font-size: 0.85rem; margin-top: 2px; }

/* ===== FEATURES ===== */
.features-section { padding: 5rem 2rem; }

.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
}
.section-header p { color: var(--text-muted); font-size: 0.9rem; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.25rem;
  max-width: 1080px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover { transform: translateY(-3px); border-color: var(--border2); }

.feature-icon {
  width: 48px; height: 48px;
  background: rgba(91,94,244,0.08);
  border: 1px solid rgba(91,94,244,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #9b9cf8;
  margin-bottom: 1rem;
}

/* Lesson icon as FA icon */
.lesson-icon {
  font-size: 1.3rem;
  width: 52px; height: 52px;
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* Badge icon (FA) */
.badge-icon-fa {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

/* Avatar icon */
.avatar-icon {
  font-size: 1.8rem;
  color: white;
}

.level-avatar .avatar-icon { font-size: 1.6rem; }
.profile-avatar .avatar-icon { font-size: 2rem; }

.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.4rem; letter-spacing: -0.01em; }
.feature-card p { color: var(--text-muted); font-size: 0.86rem; line-height: 1.7; }

/* ===== LESSONS GRID ===== */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
}

.lesson-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.6rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.lesson-card:hover {
  transform: translateY(-3px);
  border-color: rgba(91,94,244,0.35);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.lesson-icon {
  font-size: 2rem;
  width: 52px; height: 52px;
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lesson-title { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.lesson-desc { color: var(--text-muted); font-size: 0.84rem; line-height: 1.65; flex: 1; }

.lesson-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.challenge-count { font-size: 0.78rem; color: var(--text-muted); }
.lesson-status { font-size: 0.78rem; padding: 3px 9px; border-radius: 20px; font-weight: 600; }
.status-locked { background: rgba(122,127,138,0.1); color: var(--text-muted); }
.status-progress { background: rgba(245,158,11,0.1); color: var(--warning); }
.status-done { background: rgba(34,197,94,0.1); color: var(--success); }

/* ===== PROGRESS BAR ===== */
.progress-bar-wrap { background: var(--dark3); border-radius: 100px; height: 5px; overflow: hidden; }
.progress-bar-fill {
  height: 100%;
  background: var(--gradient);
  border-radius: 100px;
  transition: width 0.9s ease;
  width: 0;
}
.progress-bar-fill.green { background: linear-gradient(90deg, #22c55e, #16a34a); }
.progress-bar-fill.yellow { background: linear-gradient(90deg, #f59e0b, #d97706); }

/* ===== AUTH ===== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.25rem;
  width: 100%;
  max-width: 420px;
  animation: fade-in-up 0.4s ease;
}

.auth-logo { text-align: center; margin-bottom: 2rem; }
.auth-logo .logo-big {
  width: 56px; height: 56px;
  background: var(--gradient);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 0.7rem;
}
.auth-logo h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; }
.auth-logo p { color: var(--text-muted); font-size: 0.86rem; }

.form-group { margin-bottom: 1.1rem; }
.form-group label {
  display: block;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.form-group input {
  width: 100%;
  background: var(--dark3);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 0.68rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: border-color 0.2s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91,94,244,0.1);
}
.form-group input::placeholder { color: #3a3d48; }

.auth-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--gradient);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.93rem;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  margin-top: 0.25rem;
  box-shadow: 0 2px 12px rgba(91,94,244,0.3);
}
.auth-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(91,94,244,0.4); }

.auth-switch { text-align: center; margin-top: 1.4rem; font-size: 0.86rem; color: var(--text-muted); }
.auth-switch a { color: var(--primary); text-decoration: none; font-weight: 500; }

.alert {
  padding: 0.7rem 1rem;
  border-radius: 8px;
  margin-bottom: 1.1rem;
  font-size: 0.86rem;
}
.alert-danger { background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); color: #f87171; }
.alert-success { background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.2); color: #4ade80; }

/* ===== PAGE CONTAINER ===== */
.page-container { max-width: 1180px; margin: 0 auto; padding: 2.5rem 2rem; }
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.03em; }
.page-header p { color: var(--text-muted); font-size: 0.9rem; margin-top: 3px; }

/* ===== DASHBOARD ===== */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.25rem;
}
@media (max-width: 900px) { .dashboard-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}
.card-header h3 { font-size: 0.93rem; font-weight: 600; }

.user-level-card {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.6rem;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-bottom: 1.25rem;
}
.level-avatar {
  width: 64px; height: 64px;
  background: var(--gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.9rem;
  flex-shrink: 0;
}
.level-info { flex: 1; }
.level-info h2 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.02em; }
.level-info .xp-text { color: var(--text-muted); font-size: 0.82rem; margin-bottom: 6px; }
.xp-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(245,158,11,0.1);
  color: var(--warning);
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}
.mini-stat {
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}
.mini-stat .value { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.04em; }
.mini-stat .label { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }

.badge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}
.badge-item {
  aspect-ratio: 1;
  background: var(--dark3);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  transition: all 0.2s;
}
.badge-item.earned { border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.04); }
.badge-item:hover { transform: scale(1.04); }
.badge-item .badge-icon { font-size: 1.4rem; }
.badge-item .badge-name { font-size: 0.6rem; color: var(--text-muted); text-align: center; font-weight: 500; }
.badge-item.locked .badge-icon { filter: grayscale(1); opacity: 0.25; }

/* ===== CHALLENGE PAGE ===== */
.challenge-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  height: calc(100vh - 62px);
  overflow: hidden;
}
@media (max-width: 900px) {
  .challenge-layout { grid-template-columns: 1fr; height: auto; overflow: auto; }
}

.challenge-panel {
  background: var(--dark2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.challenge-header {
  padding: 1.4rem;
  border-bottom: 1px solid var(--border);
}
.challenge-breadcrumb { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 6px; }
.challenge-breadcrumb a { color: var(--primary); text-decoration: none; }
.challenge-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 5px; }
.challenge-xp {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(245,158,11,0.1);
  color: var(--warning);
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}
.challenge-body { padding: 1.4rem; flex: 1; }
.challenge-body p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.75; margin-bottom: 0.9rem; }
.challenge-body code {
  background: var(--dark3);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 0.82em;
  color: #79c0ff;
  font-family: monospace;
}
.hint-box {
  background: rgba(91,94,244,0.06);
  border: 1px solid rgba(91,94,244,0.15);
  border-radius: 8px;
  padding: 0.9rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #9b9cf8;
  display: none;
  animation: fade-in-up 0.25s ease;
}
.hint-box.show { display: block; }

.challenge-footer {
  padding: 1rem 1.4rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ===== EDITOR ===== */
.editor-panel { display: flex; flex-direction: column; background: var(--dark); }
.editor-toolbar {
  background: var(--dark2);
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.editor-toolbar .lang-badge {
  background: rgba(245,158,11,0.08);
  color: var(--warning);
  padding: 2px 9px;
  border-radius: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: monospace;
  border: 1px solid rgba(245,158,11,0.15);
}
.editor-wrap { flex: 1; overflow: hidden; min-height: 350px; }
.CodeMirror {
  height: 100% !important;
  font-size: 13.5px !important;
  font-family: 'Fira Code', 'Consolas', monospace !important;
  background: #0f1117 !important;
  color: #dde1e8 !important;
}
.CodeMirror-gutters { background: #16191f !important; border-right: 1px solid #2a2d35 !important; }
.CodeMirror-linenumber { color: #3a3d48 !important; }
.CodeMirror-cursor { border-left-color: #5b5ef4 !important; }
.CodeMirror-selected { background: rgba(91,94,244,0.15) !important; }

.output-panel {
  background: #0c0e13;
  border-top: 1px solid var(--border);
  height: 190px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.output-header {
  padding: 6px 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.output-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); margin-right: 6px; }
.output-content {
  flex: 1;
  padding: 0.7rem 1rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.84rem;
  overflow-y: auto;
  color: #dde1e8;
  white-space: pre-wrap;
}
.output-content .output-success { color: var(--success); }
.output-content .output-error { color: var(--danger); }
.output-content .output-info { color: #79c0ff; }

/* ===== SUCCESS MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.modal-overlay.show { opacity: 1; pointer-events: all; }
.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 2.25rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  transform: scale(0.93) translateY(16px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-overlay.show .modal-card { transform: scale(1) translateY(0); }
.modal-icon { font-size: 3.5rem; margin-bottom: 0.9rem; animation: bounce 0.5s ease 0.15s both; }
.modal-card h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.4rem; }
.modal-card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 1.25rem; }
.xp-gained {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(245,158,11,0.1);
  color: var(--warning);
  padding: 5px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 1.4rem;
}

/* ===== BADGE NOTIFICATION ===== */
.badge-notif {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  background: var(--card-bg);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 12px;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  z-index: 9998;
  transform: translateX(120%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
  max-width: 300px;
}
.badge-notif.show { transform: translateX(0); }
.badge-notif .notif-icon { font-size: 2.2rem; }
.badge-notif h4 { font-size: 0.85rem; font-weight: 700; color: var(--warning); }
.badge-notif p { font-size: 0.76rem; color: var(--text-muted); }

/* ===== PROFILE ===== */
.profile-header {
  background: var(--dark2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.25rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}
.profile-avatar {
  width: 80px; height: 80px;
  background: var(--gradient);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  flex-shrink: 0;
}
.profile-info h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.03em; }
.profile-info .profile-meta { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 0.4rem; }
.profile-meta span { font-size: 0.82rem; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }

/* ===== LEADERBOARD ===== */
.leaderboard-table { width: 100%; border-collapse: collapse; }
.leaderboard-table th {
  padding: 0.7rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}
.leaderboard-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(42,45,53,0.6);
  font-size: 0.88rem;
  vertical-align: middle;
}
.leaderboard-table tr:hover td { background: rgba(255,255,255,0.015); }
.rank-badge {
  width: 28px; height: 28px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.82rem;
}
.rank-1 { background: rgba(245,158,11,0.15); color: #f59e0b; }
.rank-2 { background: rgba(148,163,184,0.15); color: #94a3b8; }
.rank-3 { background: rgba(180,83,9,0.15); color: #b45309; }
.rank-other { background: var(--dark3); color: var(--text-muted); }
.user-row-highlight td { background: rgba(91,94,244,0.04) !important; }

/* ===== FOOTER ===== */
.footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 1.75rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.footer a { color: var(--primary); text-decoration: none; }

/* ===== ANIMATIONS ===== */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.18); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.animate-in { animation: fade-in-up 0.4s ease both; }
.loading-spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  display: inline-block;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 62px; left: 0; right: 0;
    background: var(--dark2);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 2rem;
    gap: 0.5rem;
    z-index: 999;
  }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .badge-grid { grid-template-columns: repeat(3, 1fr); }
  .profile-header { flex-direction: column; text-align: center; }
  .profile-meta { justify-content: center; }
  .navbar { padding: 0 1.25rem; }
}

/* ===== UTILITIES ===== */
.container { max-width: 1180px; margin: 0 auto; padding: 0 2rem; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1{margin-top:.5rem} .mt-2{margin-top:1rem} .mt-3{margin-top:1.5rem} .mt-4{margin-top:2rem}
.mb-1{margin-bottom:.5rem} .mb-2{margin-bottom:1rem} .mb-3{margin-bottom:1.5rem} .mb-4{margin-bottom:2rem}
.flex{display:flex} .flex-center{display:flex;align-items:center;justify-content:center}
.gap-1{gap:.5rem} .gap-2{gap:1rem} .w-full{width:100%}
.divider{height:1px;background:var(--border);margin:1.5rem 0}