/* ─────────────────────────────────────────────────────────────────────────────
   PathwAI — Layout System
   App shell, sidebar, topbar, content areas, page headers.
   ───────────────────────────────────────────────────────────────────────────── */

/* ══════════════════════════════════════════════════════════════════════════════
   APP SHELL (protected pages: dashboard, counselor, profile, etc.)
   ══════════════════════════════════════════════════════════════════════════════ */
.app-shell {
  display: flex;
  min-height: 100vh;
  background: var(--bg-page);
}

/* ══════════════════════════════════════════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════════════════════════════════════════ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-slate-900);
  border-right: 1px solid rgba(255,255,255,0.06);
  z-index: var(--z-sticky);
  overflow: hidden;
  transition: width var(--transition-slow);
  flex-shrink: 0;
}

/* Brand / Logo area */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-decoration: none;
  min-height: var(--topbar-height);
  flex-shrink: 0;
}
.sidebar-logo {
  width: 32px; height: 32px;
  background: var(--color-primary-600);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--color-white);
}
.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.sidebar-brand-name {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
}
.sidebar-brand-tagline {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  margin-top: 2px;
}

/* Student switcher */
.sidebar-student {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-3) var(--space-3) 0;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  width: calc(100% - var(--space-6));
}
.sidebar-student:hover { background: rgba(255,255,255,0.1); }
.sidebar-student-info { flex: 1; text-align: left; overflow: hidden; }
.sidebar-student-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-student-grade {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.45);
  margin-top: 1px;
}
.sidebar-student-chevron {
  color: rgba(255,255,255,0.3);
  width: 14px; height: 14px;
  flex-shrink: 0;
}

/* Navigation */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.sidebar-nav::-webkit-scrollbar { display: none; }

.nav-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.nav-section + .nav-section {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.nav-section-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: rgba(255,255,255,0.3);
  padding: 0 var(--space-3) var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.6);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
}
.nav-link:hover {
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.9);
}
.nav-link.is-active {
  background: rgba(99,102,241,0.25);
  color: var(--color-primary-300);
}
.nav-link-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}
.nav-link.is-active .nav-link-icon { opacity: 1; }
.nav-link-badge {
  margin-left: auto;
  background: var(--color-primary-600);
  color: var(--color-white);
  font-size: 10px;
  font-weight: var(--weight-bold);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  line-height: 1.5;
}

/* Sidebar footer (credits + settings) */
.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex-shrink: 0;
}

.sidebar-credits {
  padding: var(--space-3) var(--space-3);
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-lg);
}
.sidebar-credits-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-1-5);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-weight: var(--weight-semibold);
}
.sidebar-credits-value {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  line-height: 1;
}
.sidebar-credits-value .unit {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.4);
  margin-left: 3px;
}
.sidebar-credits-bar {
  margin-top: var(--space-2);
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.sidebar-credits-fill {
  height: 100%;
  background: var(--color-primary-400);
  border-radius: var(--radius-full);
  transition: width 0.6s ease;
}
.sidebar-credits-fill.low    { background: var(--color-red-400); }
.sidebar-credits-fill.medium { background: var(--color-amber-400); }
.sidebar-upgrade {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-600);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  transition: background var(--transition-fast);
  justify-content: center;
}
.sidebar-upgrade:hover { background: var(--color-primary-700); color: var(--color-white); }

.sidebar-buy-credits {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.82);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  justify-content: center;
  width: 100%;
}
.sidebar-buy-credits:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.38);
  color: white;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-1);
}
.sidebar-user-info { flex: 1; overflow: hidden; }
.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-user-plan {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  margin-top: 1px;
}

/* ══════════════════════════════════════════════════════════════════════════════
   MAIN CONTENT AREA
   ══════════════════════════════════════════════════════════════════════════════ */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-slow);
}

/* ══════════════════════════════════════════════════════════════════════════════
   TOP BAR (within main-content — non-fixed, part of flow)
   ══════════════════════════════════════════════════════════════════════════════ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-8);
  height: var(--topbar-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 0;
  z-index: var(--z-raised);
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: 1;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.topbar-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}
.topbar-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: 1px;
}

/* Mobile hamburger (hidden on desktop) */
.sidebar-toggle {
  display: none;
  width: 36px; height: 36px;
  align-items: center; justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
}
.sidebar-toggle:hover { background: var(--bg-subtle); }

/* Credits display — always pinned to far right of topbar-right */
.topbar-credits {
  display: flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  white-space: nowrap;
  order: 999;          /* always last item in topbar-right flex row */
  margin-left: auto;   /* absorbs leftover space — double-pins to far right */
  position: relative;
  cursor: default;
}
.topbar-credits .credit-balance-display { color: var(--text-primary); }

/* Tooltip */
.topbar-credits::after {
  content: "AI credits — used for college matching,\a AI counselor chats, and analysis";
  white-space: pre;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--color-gray-900, #111827);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  padding: 8px 12px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  pointer-events: none;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 1000;
  min-width: 220px;
  text-align: left;
}
.topbar-credits:hover::after {
  opacity: 1;
  transform: translateY(0);
}

/* Deadline countdown chip */
.topbar-deadline-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1-5) var(--space-3);
  background: var(--color-red-50);
  border: 1px solid var(--color-red-200);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-red-700);
  text-decoration: none;
}
.topbar-deadline-chip:hover { background: var(--color-red-100); color: var(--color-red-700); }
.topbar-deadline-chip .days { font-weight: var(--weight-extrabold); }

/* ══════════════════════════════════════════════════════════════════════════════
   PAGE CONTENT
   ══════════════════════════════════════════════════════════════════════════════ */
.page-content {
  flex: 1;
  padding: var(--space-6) var(--space-8);
  max-width: 100%;
}
.page-content-narrow {
  max-width: 760px;
}
.page-content-wide {
  padding: var(--space-6);
}

/* Page header (title + actions at top of each page) */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.page-header-text {}
.page-header-title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}
.page-header-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-1);
  line-height: var(--leading-relaxed);
}
.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}
.breadcrumb-item { color: var(--text-secondary); text-decoration: none; }
.breadcrumb-item:hover { color: var(--text-primary); }
.breadcrumb-sep { color: var(--text-muted); }
.breadcrumb-item.is-current {
  color: var(--text-primary);
  font-weight: var(--weight-medium);
  pointer-events: none;
}

/* ══════════════════════════════════════════════════════════════════════════════
   CONTENT GRIDS
   ══════════════════════════════════════════════════════════════════════════════ */
.content-grid {
  display: grid;
  gap: var(--space-5);
}
.grid-dashboard {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}
.grid-sidebar-layout {
  grid-template-columns: 1fr 340px;
  align-items: start;
}
.grid-sidebar-layout-left {
  grid-template-columns: 300px 1fr;
  align-items: start;
}
.grid-2-equal { grid-template-columns: repeat(2, 1fr); }
.grid-3-equal { grid-template-columns: repeat(3, 1fr); }
.grid-auto-cards { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-full { grid-column: 1 / -1; }

/* ══════════════════════════════════════════════════════════════════════════════
   LANDING PAGE LAYOUT (public, no sidebar)
   ══════════════════════════════════════════════════════════════════════════════ */
.landing-body {
  background: var(--color-white);
}

.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-default);
  transition: box-shadow var(--transition-base);
}
.landing-nav.scrolled { box-shadow: var(--shadow-md); }

.landing-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding: 0 var(--space-6);
  height: 64px;
}

.landing-nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.landing-nav-logo-mark {
  width: 36px; height: 36px;
  background: var(--color-primary-600);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
}
.landing-nav-logo-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  flex: 1;
  justify-content: center;
}
.landing-nav-links a {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.landing-nav-links a:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.landing-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Hero section */
.hero {
  padding: 140px 0 100px;
  background: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,0.08) 0%, transparent 70%),
    radial-gradient(circle at 20% 80%, rgba(16,185,129,0.05) 0%, transparent 50%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1-5) var(--space-4);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-700);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}
.hero-body {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 560px;
  margin-inline: auto;
}
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}
.hero-social-proof {
  font-size: var(--text-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

/* Sections */
.section {
  padding: var(--space-24) 0;
}
.section-alt { background: var(--color-slate-50); }
.section-dark {
  background: var(--color-slate-900);
  color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
  padding-inline: var(--space-6);
}
.section-kicker {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-primary-600);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 3vw, var(--text-4xl));
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}
.section-body {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}
.section-dark .section-body { color: rgba(255,255,255,0.65); }
.section-dark .section-title { color: var(--color-white); }
.section-dark .section-kicker { color: var(--color-primary-400); }

/* Feature cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.feature-card {
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}
.feature-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-xl);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-white);
}
.feature-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}
.feature-body {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* Pricing cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  align-items: start;
}
.pricing-card {
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  border: 1.5px solid var(--border-default);
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.is-featured {
  border-color: var(--color-primary-400);
  box-shadow: var(--shadow-brand), var(--shadow-lg);
  position: relative;
}
.pricing-card.is-featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary-600);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  padding: 3px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.pricing-plan-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}
.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}
.pricing-amount {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}
.pricing-period {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.pricing-credits {
  font-size: var(--text-sm);
  color: var(--color-primary-700);
  font-weight: var(--weight-semibold);
  background: var(--color-primary-50);
  padding: var(--space-1-5) var(--space-3);
  border-radius: var(--radius-md);
  display: inline-block;
}
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2-5);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}
.pricing-feature-check {
  width: 16px; height: 16px;
  color: var(--color-emerald-500);
  flex-shrink: 0;
  margin-top: 1px;
}

/* Footer */
.landing-footer {
  background: var(--color-slate-900);
  color: rgba(255,255,255,0.6);
  padding: var(--space-16) 0 var(--space-8);
}
.landing-footer-inner {
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.landing-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-brand-desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: rgba(255,255,255,0.45);
  margin-top: var(--space-4);
  max-width: 280px;
}
.footer-col-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-4);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
}
.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: rgba(255,255,255,0.85); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}

/* ══════════════════════════════════════════════════════════════════════════════
   ONBOARDING LAYOUT
   ══════════════════════════════════════════════════════════════════════════════ */
.onboarding-body {
  background: var(--bg-page);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.onboarding-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  height: 64px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  flex-shrink: 0;
}
.onboarding-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-8) var(--space-6);
}
.onboarding-card {
  width: 100%;
  max-width: 560px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}
.onboarding-step-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-default);
}

/* ══════════════════════════════════════════════════════════════════════════════
   AI CHAT LAYOUT
   ══════════════════════════════════════════════════════════════════════════════ */
.chat-layout {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--topbar-height));
  overflow: hidden;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6) var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.chat-input-bar {
  padding: var(--space-4) var(--space-6);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
  flex-shrink: 0;
}
.chat-input-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  max-width: 800px;
  margin-inline: auto;
}
.chat-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: var(--bg-page);
  resize: none;
  max-height: 120px;
  line-height: var(--leading-relaxed);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.chat-input:focus {
  border-color: var(--color-primary-400);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
  outline: none;
}
.chat-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-muted);
  max-width: 800px;
  margin-inline: auto;
  padding-top: var(--space-2);
}

/* Chat message bubbles */
.chat-message {
  display: flex;
  gap: var(--space-3);
  max-width: 800px;
  margin-inline: auto;
  width: 100%;
  animation: fadeUp var(--transition-slow) ease;
}
.chat-message.user { flex-direction: row-reverse; }
.message-avatar {
  width: 32px; height: 32px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}
.message-avatar.ai-avatar {
  background: var(--color-primary-600);
  color: var(--color-white);
}
.message-avatar.user-avatar {
  background: var(--color-slate-200);
  color: var(--color-slate-700);
}
.message-bubble {
  max-width: 72%;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}
.chat-message.ai .message-bubble {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-top-left-radius: var(--radius-sm);
}
.chat-message.user .message-bubble {
  background: var(--color-primary-600);
  color: var(--color-white);
  border-top-right-radius: var(--radius-sm);
}
.message-time {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
  align-self: flex-end;
}

/* AI typing indicator */
.typing-indicator {
  display: flex;
  gap: 5px;
  padding: var(--space-4) var(--space-5);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  border-top-left-radius: var(--radius-sm);
  width: fit-content;
}
.typing-dot {
  width: 7px; height: 7px;
  background: var(--color-slate-400);
  border-radius: var(--radius-full);
  animation: pulse 1.4s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* ══════════════════════════════════════════════════════════════════════════════
   RESPONSIVE OVERRIDES
   ══════════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1280px) {
  .grid-dashboard     { grid-template-columns: repeat(2, 1fr); }
  .features-grid      { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid       { grid-template-columns: repeat(2, 1fr); }
  .landing-footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

@media (max-width: 1024px) {
  .topbar       { padding: 0 var(--space-6); }
  .page-content { padding: var(--space-5) var(--space-6); }
  .grid-sidebar-layout { grid-template-columns: 1fr; }
  .grid-sidebar-layout-left { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  /* Sidebar slides in as drawer on mobile */
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    width: 260px; /* fixed — --sidebar-width is 0px on mobile (for main-content margin), so hardcode here */
  }
  .sidebar.is-open { transform: translateX(0); }

  /* Overlay behind open sidebar */
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: calc(var(--z-sticky) - 1);
    display: none;
  }
  .sidebar-backdrop.is-visible { display: block; }

  .main-content { margin-left: 0; }
  .sidebar-toggle { display: flex; }

  .page-content    { padding: var(--space-4); }
  .page-header     { margin-bottom: var(--space-4); }
  .features-grid   { grid-template-columns: 1fr; }
  .pricing-grid    { grid-template-columns: 1fr; }
  .landing-footer-grid { grid-template-columns: 1fr; }
  .grid-dashboard  { grid-template-columns: 1fr; }
  .grid-2-equal    { grid-template-columns: 1fr; }
  .grid-3-equal    { grid-template-columns: 1fr; }
  .onboarding-card { padding: var(--space-5); }
  .hero { padding: 100px 0 60px; }
  .chat-messages { padding: var(--space-4); }
}

@media (max-width: 480px) {
  .landing-nav-links { display: none; }
  .landing-nav-actions .btn-ghost { display: none; }
  .topbar { padding: 0 var(--space-4); }
  .message-bubble { max-width: 88%; }
  /* Hide the grade/subtitle line — keeps topbar single-height on portrait mobile */
  .dash-topbar-grade { display: none; }
  /* Prevent the page title from overflowing */
  .dash-topbar-name {
    font-size: var(--text-base);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 40vw;
  }
}