/* ============================================================
   PRACTICALX — COMPONENTS
   Reusable UI components used across all pages.
   ============================================================ */

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  letter-spacing: 0.2px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #5B3FE8);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-lg);
  color: white;
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 10px 18px;
}

.btn-ghost:hover { color: var(--color-text); }

.btn-sm {
  padding: 8px 18px;
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

/* ── BADGES / PILLS ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.badge-accent {
  background: var(--color-accent-dim);
  border-color: rgba(123,92,250,0.2);
  color: var(--color-accent);
}

.badge-green {
  background: var(--color-green-dim);
  border-color: rgba(0,200,150,0.2);
  color: var(--color-green);
}

.badge-amber {
  background: var(--color-amber-dim);
  border-color: rgba(245,166,35,0.2);
  color: var(--color-amber);
}

.badge-dim {
  background: rgba(255,255,255,0.04);
  border-color: var(--color-border);
  color: var(--color-text-dim);
}

.badge-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease infinite;
}

/* ── CARDS ── */
.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}

.card-header {
  padding: var(--space-8) var(--space-8) var(--space-6);
  background: linear-gradient(135deg, #0D0D1F, #141428);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.card-header-glow::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--color-accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.card-header-line::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2), transparent);
}

.card-body {
  padding: var(--space-6) var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ── STAT CARDS ── */
.stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: border-color var(--transition-base);
}

.stat-card:hover { border-color: var(--color-border-strong); }

.stat-icon { font-size: 22px; flex-shrink: 0; }

.stat-value {
  font-family: var(--font-display);
  font-weight: var(--font-weight-black);
  font-size: var(--font-size-2xl);
  color: var(--color-text);
  letter-spacing: -0.8px;
  line-height: 1;
}

.stat-value span { color: var(--color-accent2); }
.stat-label { font-size: 12px; font-weight: var(--font-weight-light); color: var(--color-text-muted); }

/* ── PROGRESS BAR ── */
.progress-wrap { display: flex; flex-direction: column; gap: var(--space-2); }

.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-label {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.progress-count {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-accent2);
  letter-spacing: 1px;
}

.progress-bar {
  height: 3px;
  background: var(--color-border-strong);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent2));
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

/* ── ARC LIST ── */
.arc-list { display: flex; flex-direction: column; gap: var(--space-2); }

.arc-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

.arc-item.active {
  background: var(--color-accent-dim);
  border-color: rgba(123,92,250,0.2);
}

.arc-num {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-text-dim);
  letter-spacing: 1px;
  width: 40px;
  flex-shrink: 0;
}

.arc-item.active .arc-num { color: var(--color-accent); }
.arc-name { font-size: 12px; color: var(--color-text-muted); flex: 1; }
.arc-item.active .arc-name { color: var(--color-text); }

/* ── PHILOSOPHY STRIP ── */
.philo-strip {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 28px var(--section-padding-x);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  background: var(--color-surface);
  position: relative;
  z-index: var(--z-base);
}

.philo-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.philo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.philo-text { font-size: var(--font-size-sm); color: var(--color-text-muted); }
.philo-text strong { color: var(--color-text); font-weight: var(--font-weight-medium); }

.philo-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ── PILLARS GRID ── */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.pillar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.pillar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.pillar:hover { border-color: var(--color-border-strong); transform: translateY(-3px); }
.pillar:hover::before { opacity: 1; }

.pillar-num {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  letter-spacing: 2px;
  margin-bottom: var(--space-4);
}

.pillar-icon { font-size: 24px; margin-bottom: var(--space-4); display: block; }

.pillar-title {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  color: var(--color-text);
  letter-spacing: -0.3px;
  margin-bottom: var(--space-2);
}

.pillar-desc {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-light);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ── COMING SOON CARDS ── */
.coming-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-base);
  opacity: 0.6;
}

.coming-card:hover { opacity: 0.85; border-color: var(--color-border-strong); }

.coming-x {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: var(--font-weight-black);
  font-size: var(--font-size-lg);
  color: var(--color-text-dim);
  flex-shrink: 0;
}

.coming-info { flex: 1; }

.coming-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-text-dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.coming-name {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ── NAVIGATION ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  padding: 0 var(--section-padding-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,8,15,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--transition-base);
}

.nav.scrolled { border-bottom-color: rgba(255,255,255,0.09); }

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.nav-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-name {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: 17px;
  color: var(--color-text);
  letter-spacing: -0.3px;
}

.nav-name span { color: var(--color-accent2); }

.nav-x-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 1px;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.2px;
  transition: color var(--transition-base);
}

.nav-link:hover { color: var(--color-text); }
.nav-link.active { color: var(--color-text); }

.nav-cta {
  background: var(--color-accent);
  color: white;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-display);
  text-decoration: none;
  transition: all var(--transition-base);
}

.nav-cta:hover { background: var(--color-accent-hover); transform: translateY(-1px); color: white; }

/* ── MOBILE BOTTOM BAR ── */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  height: 64px;
  background: rgba(15,15,26,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border);
  padding: 0 var(--space-4);
}

.mobile-bar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.mobile-bar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  text-decoration: none;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  flex: 1;
}

.mobile-bar-item:hover,
.mobile-bar-item.active {
  background: var(--color-accent-dim);
}

.mobile-bar-icon { font-size: 18px; line-height: 1; }

.mobile-bar-label {
  font-family: var(--font-mono);
  font-size: 8px;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.mobile-bar-item.active .mobile-bar-label { color: var(--color-accent2); }

/* ── FOOTER ── */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) var(--section-padding-x);
  position: relative;
  z-index: var(--z-base);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-brand { display: flex; flex-direction: column; gap: var(--space-1); }

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  margin-bottom: var(--space-1);
}

.footer-mark { width: 28px; height: 28px; }

.footer-name {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.footer-name span { color: var(--color-accent2); }

.footer-tagline {
  font-size: 12px;
  font-weight: var(--font-weight-light);
  color: var(--color-text-muted);
  font-style: italic;
  padding-left: 40px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-link:hover { color: var(--color-accent2); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-dim);
  letter-spacing: 0.5px;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

/* ── HERO GRID BACKGROUND ── */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(123,92,250,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123,92,250,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
  pointer-events: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav { padding: 0 var(--space-6); }
  .mobile-bar { display: flex; }
  body { padding-bottom: 64px; }
  .pillars-grid { grid-template-columns: 1fr 1fr; }
  .philo-divider { display: none; }
  .philo-strip { gap: var(--space-5); padding: var(--space-5) var(--space-6); }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { gap: var(--space-4); }
}

@media (max-width: 560px) {
  .pillars-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
}


/* ── CARD SERIES SPECIFIC ── */
.card-series-label {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  letter-spacing: 1px;
  margin-bottom: var(--space-2);
}

.card-series-title {
  font-family: var(--font-display);
  font-weight: var(--font-weight-black);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.8px;
  color: var(--color-text);
  line-height: var(--line-height-tight);
}

.card-series-desc {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-light);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ── BADGE EXTRA SMALL ── */
.badge-xs {
  font-size: 9px;
  padding: 3px 10px;
}

/* ── COMING TITLE ── */
.coming-title {
  margin-bottom: var(--space-8);
}

/* ── SECTION LABEL ALT COLOR ── */
.section-label-alt {
  color: var(--color-accent2);
}