/* ═══════════════════════════════════════════════════════════════════
   EduManage 360 — Precision Enterprise SaaS Landing Styles
   Matches High-Fidelity Architecture Preview
   100% Offline Resilient • Pure Vanilla CSS
   ═══════════════════════════════════════════════════════════════════ */

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

:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Color Palette matching the preview */
  --primary:        #059669;
  --primary-hover:  #047857;
  --primary-light:  #ecfdf5;
  --primary-border: #a7f3d0;
  
  --ink-900:        #0f172a;
  --ink-800:        #1e293b;
  --ink-700:        #334155;
  --ink-600:        #475569;
  --ink-500:        #64748b;
  --ink-300:        #cbd5e1;
  --ink-200:        #e2e8f0;
  --ink-100:        #f1f5f9;
  --ink-50:         #f8fafc;
  --surface:        #ffffff;

  --border:         #e2e8f0;
  --border-dark:    #1e293b;

  --shadow-sm:      0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md:      0 4px 12px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg:      0 20px 40px -15px rgba(15, 23, 42, 0.16);
  --shadow-window:  0 25px 50px -12px rgba(15, 23, 42, 0.22), 0 0 0 1px rgba(15, 23, 42, 0.08);

  --radius-sm:      6px;
  --radius-md:      8px;
  --radius-lg:      14px;
  --radius-pill:    9999px;

  --transition:     0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--ink-900);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, .font-heading {
  font-family: var(--font-heading);
  letter-spacing: -0.03em;
  color: var(--ink-900);
}

.container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 36px;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ─── NAVIGATION HEADER ────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ink-200);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-brand-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
}

.drawer-brand-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--ink-600);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a:hover {
  color: var(--ink-900);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--ink-50);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 7px 14px;
  font-size: 0.85rem;
  color: var(--ink-500);
  width: 180px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-signin {
  background: var(--ink-900);
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: 9px 24px;
}

.btn-signin:hover {
  background: var(--ink-800);
  box-shadow: var(--shadow-sm);
}

.menu-toggle-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--ink-900);
  cursor: pointer;
}

/* ─── HERO SECTION (EXACT PREVIEW MATCH) ───────────────────────── */
.hero {
  padding: 56px 0 72px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  align-items: center;
  gap: 52px;
}

/* Hero Left Column */
.hero-left {
  display: flex;
  flex-direction: column;
}

.hero-headline {
  font-size: clamp(2.8rem, 4.4vw, 4.1rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--ink-900);
  margin-bottom: 24px;
}

.hero-headline .accent-line {
  display: block;
}

.hero-subtext {
  font-size: 1.08rem;
  color: var(--ink-600);
  line-height: 1.65;
  margin-bottom: 22px;
  max-width: 500px;
}

.hero-feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: var(--primary-hover);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn-hero-primary {
  background: var(--primary);
  color: #ffffff;
  font-size: 1.02rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
}

.btn-hero-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
}

.btn-hero-outline {
  background: #ffffff;
  color: var(--ink-900);
  border: 1.5px solid var(--ink-900);
  font-size: 1.02rem;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: var(--radius-md);
}

.btn-hero-outline:hover {
  background: var(--ink-50);
  border-color: var(--ink-800);
}

.hero-social-proof {
  font-size: 0.95rem;
  color: var(--ink-600);
  font-weight: 600;
}

/* ─── APPLICATION WINDOW (HERO RIGHT VIEWPORT) ─────────────────── */
.app-window {
  background: #ffffff;
  border: 1px solid var(--ink-300);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-window);
  overflow: hidden;
  font-size: 0.8rem;
}

/* Browser Titlebar (Dark Slate) */
.app-browser-bar {
  background: var(--ink-800);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.w-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.w-red    { background: #ef4444; }
.w-yellow { background: #f59e0b; }
.w-green  { background: #10b981; }

.window-nav-arrows {
  color: #94a3b8;
  font-size: 0.9rem;
  display: flex;
  gap: 8px;
}

.window-url-box {
  flex: 1;
  max-width: 320px;
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 3px 12px;
  font-size: 0.72rem;
  color: #cbd5e1;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.window-bar-actions {
  color: #94a3b8;
  font-size: 0.9rem;
  margin-left: auto;
}

/* ─── HERO SCREENSHOT (Real Dashboard Preview) ──────────────────── */
.hero-screenshot-wrap {
  position: relative;
  line-height: 0;
  background: var(--ink-900);
  max-height: 520px;
  overflow: hidden;
}

.hero-screenshot-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, rgba(15, 23, 42, 0.25));
  pointer-events: none;
}

.hero-dashboard-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: top;
  border-radius: 0;
  user-select: none;
}

.hero-live-badge {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #6ee7b7;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.04em;
}

.live-pulse {
  width: 7px;
  height: 7px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse-ring 1.6s infinite;
  flex-shrink: 0;
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Inside Application Header */
.app-inner-header {
  background: #ffffff;
  border-bottom: 1px solid var(--ink-200);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-session-title {
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--ink-900);
}

.app-user-bar {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-bell {
  position: relative;
  font-size: 1rem;
}

.bell-badge {
  position: absolute;
  top: -3px;
  right: -5px;
  background: #ef4444;
  color: #fff;
  font-size: 0.55rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.app-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #0284c7;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}

/* Application Layout: Sidebar + Main Broadsheet + Right Summary */
.app-layout-body {
  display: grid;
  grid-template-columns: 120px 1fr 240px;
  background: #ffffff;
  min-height: 480px;
}

/* Left Mini Sidebar */
.app-sidebar {
  background: var(--ink-900);
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #cbd5e1;
}

.app-nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-weight: 600;
  color: #94a3b8;
  cursor: pointer;
  transition: all var(--transition);
}

.app-nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.app-nav-item.active {
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
}

/* Center Broadsheet Content */
.app-broadsheet-pane {
  padding: 20px;
  border-right: 1px solid var(--ink-200);
  overflow-x: auto;
}

.broadsheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.broadsheet-title-box h3 {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--ink-900);
}

.broadsheet-action-pill {
  border: 1px solid var(--ink-300);
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--ink-700);
}

/* Broadsheet Table (High Fidelity) */
.broadsheet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
  text-align: left;
}

.broadsheet-table th {
  background: var(--ink-50);
  color: var(--ink-600);
  font-weight: 800;
  padding: 8px 10px;
  border: 1px solid var(--ink-200);
  white-space: nowrap;
}

.broadsheet-table td {
  padding: 8px 10px;
  border: 1px solid var(--ink-200);
  color: var(--ink-800);
  white-space: nowrap;
}

.rank-pill {
  font-weight: 800;
  color: var(--ink-900);
}

.sub-score {
  font-weight: 700;
  font-family: var(--font-mono);
}
.sub-a1 { color: #15803d; }
.sub-b2 { color: #0284c7; }
.sub-b3 { color: #4338ca; }
.sub-c4 { color: #b45309; }

/* Right Telemetry Pane */
.app-telemetry-pane {
  background: #f8fafc;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.telemetry-card {
  background: #ffffff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 14px;
}

.tel-label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.tel-val-primary {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--ink-900);
  line-height: 1.1;
  margin-bottom: 2px;
}

.tel-val-secondary {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: #b45309;
}

/* Attendance Circular Dial */
.attendance-dial-box {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.dial-circle {
  position: relative;
  width: 62px;
  height: 62px;
  flex-shrink: 0;
}

.dial-circle svg {
  transform: rotate(-90deg);
}

.dial-circle-bg {
  stroke: #e2e8f0;
  fill: none;
  stroke-width: 6;
}

.dial-circle-prog {
  stroke: var(--primary);
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 157;
  stroke-dashoffset: 6; /* ~98.4% */
}

.dial-center-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--ink-900);
}

/* MoMo Feed list */
.momo-feed-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.momo-feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink-100);
}
.momo-feed-item:last-child { border: none; padding-bottom: 0; }

/* ─── STAKEHOLDER PERSONA SECTION ──────────────────────────────── */
.persona-section {
  padding: 64px 0;
  background: var(--ink-50);
  border-top: 1px solid var(--ink-200);
  border-bottom: 1px solid var(--ink-200);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--ink-600);
}

.persona-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.persona-tab-btn {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 700;
  background: #ffffff;
  border: 1.5px solid var(--ink-200);
  color: var(--ink-700);
  cursor: pointer;
  transition: all var(--transition);
}

.persona-tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.persona-tab-btn.active {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: #ffffff;
}

.persona-panel {
  display: none;
  background: #ffffff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.persona-panel.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  animation: fadeIn 0.22s ease;
}

.persona-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.persona-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.pfi-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.pfi-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.pfi-text p {
  font-size: 0.85rem;
  color: var(--ink-600);
}

/* ─── LIVE PRODUCT TOUR ────────────────────────────────────────── */
.tour-section {
  padding: 64px 0;
  background: #ffffff;
}

.tour-nav-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.tour-tab-btn {
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 700;
  background: var(--ink-50);
  border: 1px solid var(--ink-200);
  color: var(--ink-700);
  cursor: pointer;
  transition: all var(--transition);
}

.tour-tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tour-tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.tour-showcase-box {
  background: var(--ink-900);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
}

.tour-view-panel {
  display: none;
}

.tour-view-panel.active {
  display: block;
  animation: fadeIn 0.22s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── ROI CALCULATOR ───────────────────────────────────────────── */
.calc-section {
  padding: 64px 0;
  background: var(--ink-50);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 44px;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.calc-slider-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.calc-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 700;
}

.calc-slider-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
}

input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #e2e8f0;
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.4);
}

.calc-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.calc-stat-box {
  background: var(--ink-50);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.csb-val {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.csb-lbl {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-600);
}

/* ─── CORE MODULES (FEATURES) ──────────────────────────────────── */
.features-section {
  padding: 72px 0;
  background: #ffffff;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--ink-50);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  background: #ffffff;
  box-shadow: var(--shadow-md);
  border-color: rgba(5, 150, 105, 0.3);
}

.feature-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
  background: #ffffff;
  border: 1px solid var(--ink-200);
}

.feature-title {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.88rem;
  color: var(--ink-600);
  line-height: 1.6;
}

/* ─── INSTITUTIONAL CTA BANNER ─────────────────────────────────── */
.cta-section {
  padding: 56px 0;
  background: #ffffff;
}

.cta-card {
  background: var(--ink-900);
  border-radius: 20px;
  padding: 48px 48px;
  text-align: center;
  color: #ffffff;
}

.cta-headline {
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 14px;
}

.cta-sub {
  font-size: 1.05rem;
  color: var(--ink-300);
  max-width: 540px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ─── FOOTER ───────────────────────────────────────────────────── */
.footer {
  background: var(--ink-50);
  border-top: 1px solid var(--ink-200);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--ink-600);
  margin-top: 12px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-900);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--ink-600);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--ink-200);
  font-size: 0.82rem;
  color: var(--ink-500);
  flex-wrap: wrap;
  gap: 12px;
}

/* ─── CONSULTATION MODAL ───────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 520px;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--ink-200);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--ink-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  color: var(--ink-500);
  cursor: pointer;
}

.modal-body {
  padding: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--ink-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
}

/* ─── EDUBOT OFFLINE ASSISTANT ─────────────────────────────────── */
#edubot-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  box-shadow: 0 8px 24px rgba(5, 150, 105, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
}

#edubot-toggle:hover {
  background: var(--primary-hover);
  transform: scale(1.06);
}

#edubot-toggle.open {
  background: var(--ink-900);
}

#edubot-window {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: 999;
  width: 360px;
  background: #ffffff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

#edubot-window.open {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.bot-header {
  background: var(--ink-900);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
}

.bot-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.bot-header-info h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
}

.bot-header-info p {
  font-size: 0.7rem;
  color: var(--ink-300);
}

.bot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 300px;
}

.bot-msg {
  max-width: 88%;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 0.84rem;
  line-height: 1.5;
}

.bot-msg.bot {
  background: var(--ink-50);
  color: var(--ink-900);
  border-radius: 4px 12px 12px 12px;
  align-self: flex-start;
}

.bot-msg.user {
  background: var(--primary);
  color: #ffffff;
  border-radius: 12px 4px 12px 12px;
  align-self: flex-end;
}

.bot-quick-replies {
  padding: 0 16px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.qr-btn {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary-hover);
  background: var(--primary-light);
  border: none;
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  cursor: pointer;
}

.bot-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--ink-200);
}

#bot-input {
  flex: 1;
  border: 1.5px solid var(--ink-200);
  border-radius: var(--radius-pill);
  padding: 7px 12px;
  font-size: 0.84rem;
  font-family: var(--font-body);
  outline: none;
}

#bot-input:focus {
  border-color: var(--primary);
}

#bot-send {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── MOBILE NAVIGATION DRAWER ─────────────────────────────────── */
.mobile-drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  z-index: 1998;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mobile-drawer-backdrop.open {
  display: block;
  opacity: 1;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  height: 100vh;
  background: var(--surface);
  z-index: 1999;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 32px rgba(15, 23, 42, 0.18);
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--ink-200);
}

.drawer-close-btn {
  background: var(--ink-100);
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  color: var(--ink-700);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.drawer-close-btn:hover {
  background: var(--ink-200);
}

.drawer-links {
  list-style: none;
  padding: 16px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drawer-links li a {
  display: block;
  padding: 11px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-700);
  border-radius: var(--radius-md);
  transition: background var(--transition), color var(--transition);
}

.drawer-links li a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.drawer-actions {
  padding: 16px 20px 28px;
  border-top: 1px solid var(--ink-200);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ─── MINIMAL FOOTER ────────────────────────────────────────────── */
.footer-minimal {
  border-top: 1px solid var(--ink-200);
  padding: 20px 36px;
  text-align: center;
  background: var(--surface);
}

.footer-minimal p {
  font-size: 0.88rem;
  color: var(--ink-500);
  font-weight: 500;
  margin: 0;
}

/* ─── Responsive Media Queries ─────────────────────────────────── */
@media (max-width: 1240px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .app-window {
    max-width: 860px;
    margin: 0 auto;
  }
}

@media (max-width: 900px) {
  .nav-links, .nav-search-bar {
    display: none;
  }
  .menu-toggle-btn {
    display: block;
  }
  .app-layout-body {
    grid-template-columns: 1fr;
  }
  .app-sidebar, .app-telemetry-pane {
    display: none;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .persona-panel.active {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }
  .hero-headline {
    font-size: 2.4rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .calc-results-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  #edubot-window {
    width: calc(100vw - 32px);
    right: 16px;
  }
}