/**
 * LearnIQ – SAS Human-Centred AI Framework
 * Singapore American School
 * 
 * Design System & Stylesheet
 * Inspired by: scoreapp.com, beautiful.ai, and SAS brand guidelines
 * 
 * Color Palette:
 * - Navy: #001A43 (Primary brand)
 * - Cardinal Red: #B3002D (Accent)
 * - White: #FFFFFF
 * - Bright accents from "I Am An Eagle" DEI imagery
 */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ========================================================================== */

:root {
  /* SAS Brand Colours - Primary */
  --sas-navy: #001A43;
  --sas-cardinal: #B3002D;
  --sas-white: #FFFFFF;
  
  /* Extended Palette - DEI-inspired bright accents */
  --sas-gold: #F6B546;
  --sas-sky: #38BDF8;
  --sas-emerald: #10B981;
  --sas-purple: #A855F7;
  --sas-coral: #FB7185;
  
  /* Neutral Greys */
  --grey-50: #F9FAFB;
  --grey-100: #F3F4F6;
  --grey-200: #E5E7EB;
  --grey-300: #D1D5DB;
  --grey-400: #9CA3AF;
  --grey-500: #6B7280;
  --grey-600: #4B5563;
  --grey-700: #374151;
  --grey-800: #1F2937;
  --grey-900: #111827;
  
  /* Dark Mode (Default) */
  --bg-primary: #050816;
  --bg-secondary: #0A1023;
  --bg-elevated: #0F1830;
  --text-primary: #FDFDFD;
  --text-secondary: #C0C7E2;
  --text-muted: #8B92B0;
  
  /* Borders & Shadows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.24);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.56);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  
  /* Spacing */
  --spacing-1: 0.25rem;  /* 4px */
  --spacing-2: 0.5rem;   /* 8px */
  --spacing-3: 0.75rem;  /* 12px */
  --spacing-4: 1rem;     /* 16px */
  --spacing-5: 1.5rem;   /* 24px */
  --spacing-6: 2rem;     /* 32px */
  --spacing-8: 3rem;     /* 48px */
  --spacing-10: 4rem;    /* 64px */
}

/* Light Mode Variables */
body.light-mode {
  --bg-primary: #FFFFFF;
  --bg-secondary: var(--grey-50);
  --bg-elevated: var(--grey-100);
  --text-primary: var(--grey-900);
  --text-secondary: var(--grey-700);
  --text-muted: var(--grey-500);
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.18);
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.16);
  --shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.24);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: radial-gradient(circle at 50% 0%, #132043 0%, var(--bg-primary) 60%);
  min-height: 100vh;
  transition: background var(--transition-slow), color var(--transition-base);
}

body.light-mode {
  background: linear-gradient(180deg, var(--grey-50) 0%, #FFFFFF 100%);
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:focus-visible {
  outline: 2px solid var(--sas-cardinal);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   LAYOUT CONTAINERS
   ========================================================================== */

.page-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-4);
}

@media (min-width: 768px) {
  .page-container {
    padding: var(--spacing-6);
  }
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  background: rgba(5, 8, 22, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-base);
}

body.light-mode .navbar {
  background: rgba(255, 255, 255, 0.92);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-3) var(--spacing-4);
  gap: var(--spacing-4);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  flex-shrink: 0;
}

.navbar-logo {
  width: 48px;
  height: 48px;
  background-image: url("school-logo.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--transition-base);
}

.navbar-logo:hover {
  transform: scale(1.05) rotate(2deg);
}

.navbar-title {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar-title-school {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
}

.navbar-title-product {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.navbar-links {
  display: none;
  gap: var(--spacing-2);
}

@media (min-width: 1024px) {
  .navbar-links {
    display: flex;
  }
}

.nav-link {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

body.light-mode .nav-link:hover {
  background: rgba(0, 0, 0, 0.04);
}

.theme-toggle {
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(0, 0, 0, 0.35);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

body.light-mode .theme-toggle {
  background: rgba(0, 0, 0, 0.06);
}

body.light-mode .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  margin-top: var(--spacing-5);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 500px;
  box-shadow: var(--shadow-xl);
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-background-image {
  position: absolute;
  inset: 0;
  background-image: -webkit-image-set(
    url("Desktop-Wallpaper_I-am-an-Eagle_DEI.webp") type("image/webp"),
    url("Desktop-Wallpaper_I-am-an-Eagle_DEI.png") type("image/png")
  );
  background-image: image-set(
    url("Desktop-Wallpaper_I-am-an-Eagle_DEI.webp") type("image/webp"),
    url("Desktop-Wallpaper_I-am-an-Eagle_DEI.png") type("image/png")
  );
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(0.45) saturate(1.2);
  transform: scale(1.02);
  object-fit: cover;
}

@supports not (background-image: image-set(url("Desktop-Wallpaper_I-am-an-Eagle_DEI.webp") type("image/webp"), url("Desktop-Wallpaper_I-am-an-Eagle_DEI.png") type("image/png"))) {
  .hero-background-image {
    background-image: url("Desktop-Wallpaper_I-am-an-Eagle_DEI.png");
  }
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(179, 0, 45, 0.5), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 26, 67, 0.7), transparent 50%),
    linear-gradient(180deg, transparent 0%, rgba(5, 8, 22, 0.8) 100%);
  mix-blend-mode: multiply;
}

.hero-content {
  position: relative;
  z-index: 10;
  padding: var(--spacing-8) var(--spacing-5);
  display: grid;
  gap: var(--spacing-6);
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
    padding: var(--spacing-10) var(--spacing-6);
  }
}

.hero-main {
  color: var(--sas-white);
}

.hero-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.hero-tag {
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.15);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--sas-white);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: var(--spacing-4);
  color: var(--sas-white);
  word-wrap: break-word;
  overflow-wrap: anywhere;
  max-width: 90%;
}

.hero-title-highlight {
  background: linear-gradient(135deg, var(--sas-gold) 0%, #FBBF24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  max-width: 52ch;
  margin-bottom: var(--spacing-5);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--sas-cardinal);
  outline-offset: 4px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--sas-cardinal) 0%, #DC2626 100%);
  color: var(--sas-white);
  box-shadow: 0 4px 16px rgba(179, 0, 45, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(179, 0, 45, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--sas-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ==========================================================================
   HERO INFO PANEL
   ========================================================================== */

.hero-panel {
  background: rgba(5, 8, 22, 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  box-shadow: var(--shadow-lg);
}

.hero-panel-title {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-2);
  font-weight: 600;
}

.hero-panel-heading {
  font-size: var(--font-size-xl);
  color: var(--sas-white);
  margin-bottom: var(--spacing-3);
}

.hero-panel-text {
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-4);
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.pill {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */

.section {
  margin-top: var(--spacing-10);
  padding: var(--spacing-6);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(15, 24, 48, 0.6), rgba(10, 16, 35, 0.8));
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

body.light-mode .section {
  background: var(--sas-white);
  box-shadow: var(--shadow-md);
}

/* Decorative gradient overlay */
.section::before {
  content: "";
  position: absolute;
  inset: -50%;
  background: 
    radial-gradient(circle at 10% 20%, rgba(179, 0, 45, 0.08), transparent 60%),
    radial-gradient(circle at 90% 80%, rgba(246, 181, 70, 0.06), transparent 60%);
  opacity: 0.8;
  pointer-events: none;
  z-index: 0;
}

.section > * {
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: var(--spacing-6);
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-2);
  font-weight: 600;
}

.section-tag-number {
  color: var(--sas-gold);
  font-weight: 700;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--text-primary);
  margin-bottom: var(--spacing-3);
}

.section-description {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 70ch;
}

/* Light variant sections */
.section-light {
  background: var(--grey-50);
  border-color: var(--border-medium);
}

body.light-mode .section-light {
  background: var(--grey-50);
}

/* ==========================================================================
   GRID LAYOUTS
   ========================================================================== */

.grid-2 {
  display: grid;
  gap: var(--spacing-5);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  gap: var(--spacing-5);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  gap: var(--spacing-4);
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

body.light-mode .card {
  background: var(--sas-white);
}

.card-header {
  margin-bottom: var(--spacing-3);
}

.card-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: var(--spacing-1);
}

.card-title {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-2);
}

.card-text {
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-3);
}

.card-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-3) 0;
}

.card-list li {
  position: relative;
  padding-left: var(--spacing-5);
  margin-bottom: var(--spacing-2);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}

.card-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--sas-cardinal);
  font-weight: 700;
}

/* ==========================================================================
   TABS & INTERACTIVE CONTROLS
   ========================================================================== */

.tab-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.tab-button {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-button:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.tab-button.active {
  background: linear-gradient(135deg, var(--sas-cardinal) 0%, #DC2626 100%);
  border-color: var(--sas-cardinal);
  color: var(--sas-white);
  box-shadow: 0 4px 12px rgba(179, 0, 45, 0.3);
}

.tab-panel {
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  min-height: 120px;
  line-height: 1.7;
  color: var(--text-secondary);
}

body.light-mode .tab-panel {
  background: var(--sas-white);
}

/* ==========================================================================
   AGENT CARDS (Special styling for agent showcase)
   ========================================================================== */

.agent-selector {
  display: grid;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-5);
}

@media (min-width: 768px) {
  .agent-selector {
    grid-template-columns: repeat(3, 1fr);
  }
}

.agent-card {
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: var(--bg-elevated);
  cursor: pointer;
  transition: all var(--transition-base);
}

.agent-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.agent-card.active {
  background: linear-gradient(135deg, rgba(0, 26, 67, 0.8), rgba(179, 0, 45, 0.6));
  border-color: var(--sas-cardinal);
  box-shadow: 0 8px 24px rgba(179, 0, 45, 0.3);
}

.agent-card-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-1);
}

.agent-card.active .agent-card-label {
  color: rgba(255, 255, 255, 0.8);
}

.agent-card-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-1);
  display: block;
}

.agent-card.active .agent-card-name {
  color: var(--sas-white);
}

.agent-card-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  display: block;
}

.agent-card.active .agent-card-description {
  color: rgba(255, 255, 255, 0.9);
}

.agent-detail {
  padding: var(--spacing-6);
  border-radius: var(--radius-lg);
  background: 
    radial-gradient(circle at 20% 30%, rgba(246, 181, 70, 0.12), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(56, 189, 248, 0.12), transparent 50%),
    var(--bg-elevated);
  border: 1px solid var(--border-medium);
  min-height: 250px;
}

.agent-detail-title {
  font-size: var(--font-size-2xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-3);
}

.agent-detail-text {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-4);
}

/* ==========================================================================
   METRICS / STATS
   ========================================================================== */

.metrics-grid {
  display: grid;
  gap: var(--spacing-4);
}

@media (min-width: 640px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  padding: var(--spacing-5);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  text-align: center;
  transition: all var(--transition-base);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-2);
  font-weight: 600;
}

.metric-value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--sas-emerald);
  line-height: 1;
  margin-bottom: var(--spacing-2);
}

.metric-caption {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   CHIPS / BADGES
   ========================================================================== */

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-top: var(--spacing-3);
}

.chip {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
}

body.light-mode .chip {
  background: var(--grey-100);
  border-color: var(--grey-300);
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation delays */
.reveal:nth-child(1) { transition-delay: 0s; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  margin-top: var(--spacing-10);
  padding: var(--spacing-8) var(--spacing-4);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

.footer-text {
  margin-bottom: var(--spacing-2);
}

.footer-link {
  color: var(--sas-cardinal);
  font-weight: 600;
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--sas-cardinal);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

/* Text utilities */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

/* Spacing utilities */
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }

/* Font size utilities */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }

/* Font weight utilities */
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Text transform utilities */
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }

/* Letter spacing */
.tracking-wide { letter-spacing: 0.08em; }
.tracking-wider { letter-spacing: 0.12em; }

/* Line height */
.leading-tight { line-height: 1.2; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.7; }

/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */

@media (max-width: 640px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 641px) {
  .show-mobile {
    display: none !important;
  }
}

/* ==========================================================================
   RESPONSIVE LAYOUT ADJUSTMENTS
   ========================================================================== */

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr !important;
    gap: 1.25rem;
  }
}

@media (max-width: 600px) {
  .navbar-links {
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
  }

  .navbar-links .nav-link,
  .navbar-links .theme-toggle {
    flex: 1 1 calc(50% - 0.5rem);
    text-align: center;
  }

  .hero-content {
    padding: var(--spacing-6) var(--spacing-4);
  }

  .hero-panel {
    margin-top: var(--spacing-4);
  }

  .hero-description {
    font-size: var(--font-size-base);
  }

  .hero-title {
    max-width: 100%;
  }

  .hero-background-image {
    transform: scale(1.05);
    background-position: center top;
  }
}

/* ==========================================================================
   INLINE STYLE REPLACEMENTS (Fix Linter Errors)
   ========================================================================== */

/* Heading styles */
.heading-lg {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 700;
}

.heading-md {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 700;
}

.heading-sm {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.heading-xs {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.heading-cardinal {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--sas-cardinal);
}

.heading-tiny {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Paragraph styles */
.para-intro {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.para-small {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.para-tiny {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.para-body {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.para-body a,
.card-text a {
  color: var(--sas-cardinal);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.para-body a:hover,
.card-text a:hover {
  color: var(--sas-gold);
  text-decoration-thickness: 2px;
}

/* List styles */
.list-clean {
  list-style: none;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.list-no-margin {
  margin: 0;
}

/* Card spacing */
.card-spaced {
  margin-top: 2rem;
}

.card-spaced-bottom {
  margin-bottom: 1.5rem;
}

.card-spaced.card-spaced-bottom {
  margin-bottom: 2.5rem;
}

.card-bordered-left {
  border-left: 4px solid var(--sas-cardinal);
}

.card-text-spaced {
  margin-top: 1rem;
}

/* Grid spacing */
.grid-spaced {
  margin-top: 1.5rem;
}

/* Process step styles */
.process-container {
  margin: 1.5rem 0;
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.process-step {
  display: flex;
  align-items: start;
  gap: 1rem;
}

.process-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--sas-cardinal);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
}

.process-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.process-content p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Panel min-height */
.panel-tall {
  min-height: 400px;
}

/* ==========================================================================
   VISUAL ENHANCEMENTS & POLISH
   ========================================================================== */

/* Smooth scroll indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(0, 0, 0, 0.05);
  z-index: 1000;
  pointer-events: none;
}

.scroll-indicator-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--sas-cardinal), var(--sas-gold));
  width: 0%;
  transition: width 0.1s ease-out;
}

body.light-mode .scroll-indicator {
  background: rgba(0, 0, 0, 0.05);
}

/* Enhanced card hover effects
   Note: shimmer ::before animation removed to avoid CLS/layout shift issues
   flagged on #impact & metric cards. */
.card {
  position: relative;
  overflow: hidden;
}

/* Shimmer effect previously implemented with .card::before has been
   intentionally removed for a more stable layout, especially on load
   and on lower-powered devices. */

/* Gradient accent borders */
.card-accent-top {
  position: relative;
}

.card-accent-top::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sas-cardinal), var(--sas-gold), var(--sas-sky));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card-accent-top:hover::after {
  opacity: 1;
}

/* Subtle glow on interactive elements */
.nav-link,
.tab-button,
.agent-card,
.btn {
  position: relative;
}

.nav-link:focus-visible::after,
.tab-button:focus-visible::after,
.agent-card:focus-visible::after,
.btn:focus-visible::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: radial-gradient(circle, rgba(179, 0, 45, 0.2), transparent);
  pointer-events: none;
  z-index: -1;
}

/* Enhanced metric cards */
.metric-card {
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sas-emerald), var(--sas-sky));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.metric-card:hover::before {
  transform: scaleX(1);
}

/* Number counter animation enhancement */
.metric-value {
  position: relative;
  display: inline-block;
}

.metric-value::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--sas-emerald);
  opacity: 0.3;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.metric-card:hover .metric-value::after {
  transform: scaleX(1);
}

/* Section divider enhancement */
.section {
  position: relative;
}

.section::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--sas-cardinal), transparent);
  opacity: 0.3;
}

/* Agent card pulse effect */
.agent-card.active {
  animation: pulse-accent 2s ease-in-out infinite;
}

@keyframes pulse-accent {
  0%, 100% {
    box-shadow: 0 8px 24px rgba(179, 0, 45, 0.3);
  }
  50% {
    box-shadow: 0 8px 32px rgba(179, 0, 45, 0.5);
  }
}

/* Tab button active indicator */
.tab-button.active::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--sas-cardinal);
  border-radius: 2px 2px 0 0;
}

/* Smooth section transitions */
.section {
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.section.reveal:not(.visible) {
  opacity: 0;
  transform: translateY(20px);
}

/* Enhanced hero gradient */
.hero-gradient-overlay {
  animation: gradient-shift 20s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradient-shift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Navbar scroll effect */
.navbar {
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(5, 8, 22, 0.95);
}

body.light-mode .navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
}

/* Button ripple effect */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* Process step number animation */
.process-number {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.process-step:hover .process-number {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 4px 12px rgba(179, 0, 45, 0.3);
}

/* Enhanced focus states */
*:focus-visible {
  outline: 2px solid var(--sas-cardinal);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Loading skeleton (for future use) */
.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-elevated) 0%, 
    rgba(255, 255, 255, 0.1) 50%, 
    var(--bg-elevated) 100%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Smooth color transitions */
* {
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base);
}

/* Enhanced shadows on hover */
.card:hover,
.metric-card:hover {
  box-shadow: var(--shadow-lg);
}

/* Text selection styling */
::selection {
  background: var(--sas-cardinal);
  color: var(--sas-white);
}

::-moz-selection {
  background: var(--sas-cardinal);
  color: var(--sas-white);
}

/* Scrollbar styling (webkit) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--sas-cardinal);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--sas-gold);
}

/* Smooth page transitions */
html {
  scroll-padding-top: 80px;
}

/* Enhanced agent detail panel */
.agent-detail {
  position: relative;
}

.agent-detail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sas-cardinal), var(--sas-gold));
  border-radius: 2px 0 0 2px;
}

/* Role panel timeline effect */
.role-panel {
  position: relative;
  padding-left: 1.5rem;
}

.role-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--sas-cardinal), var(--sas-sky));
  border-radius: 2px;
}

/* Enhanced chip/badge hover */
.chip:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Section number badge enhancement */
.section-tag-number {
  display: inline-block;
  width: 24px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  border-radius: 50%;
  background: rgba(246, 181, 70, 0.2);
  margin-right: 0.5rem;
}

/* Hero tag enhancement */
.hero-tag {
  position: relative;
  overflow: hidden;
}

.hero-tag::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.hero-tag:hover::before {
  left: 100%;
}

/* Enhanced navbar logo */
.navbar-logo {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  transition: filter var(--transition-base);
}

.navbar-logo:hover {
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

/* Footer link enhancement */
.footer-link {
  position: relative;
}

.footer-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sas-gold);
  transition: width var(--transition-base);
}

.footer-link:hover::after {
  width: 100%;
}

/* Responsive image optimization */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Print styles */
@media print {
  .navbar,
  .theme-toggle,
  .btn,
  .scroll-indicator {
    display: none;
  }
  
  .section {
    page-break-inside: avoid;
  }
}

/* ==========================================================================
   ADDITIONAL VISUAL POLISH
   ========================================================================== */

/* Smooth page load animation */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

body {
  animation: fadeIn 0.5s ease-in;
}

/* Enhanced section dividers */
.section-header::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--sas-cardinal), var(--sas-gold));
  margin-top: var(--spacing-3);
  border-radius: 2px;
}

/* Subtle parallax effect on hero */
.hero-background-image {
  will-change: transform;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-background-image {
    transition: transform 0.3s ease-out;
  }
}

/* Enhanced button states */
.btn:active {
  transform: translateY(0);
}

.btn-primary:active {
  box-shadow: 0 2px 8px rgba(179, 0, 45, 0.4);
}

/* Improved card transitions */
.card,
.metric-card {
  will-change: transform, box-shadow;
}

/* Enhanced tab button transitions */
.tab-button {
  position: relative;
  overflow: hidden;
}

.tab-button::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sas-cardinal);
  transition: width var(--transition-base);
}

.tab-button.active::after {
  width: 100%;
}

/* Agent card icon enhancement */
.agent-card {
  transition: all var(--transition-base);
}

.agent-card:hover {
  transform: translateY(-4px);
}

/* Enhanced metric value display */
.metric-value {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* Improved list item spacing */
.card-list li {
  transition: transform var(--transition-fast), padding-left var(--transition-fast);
}

.card-list li:hover {
  transform: translateX(4px);
  padding-left: calc(var(--spacing-5) + 4px);
}

/* Enhanced section reveal */
.reveal.visible {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Better focus management */
.skip-link:focus {
  position: fixed;
  top: var(--spacing-4);
  left: var(--spacing-4);
  z-index: 9999;
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--sas-cardinal);
  color: var(--sas-white);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: var(--shadow-lg);
}

/* Enhanced hero panel */
.hero-panel {
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
}

/* Improved chip/badge design */
.chip,
.pill {
  transition: all var(--transition-fast);
  will-change: transform;
}

.chip:hover,
.pill:hover {
  transform: translateY(-2px) scale(1.05);
}

/* Enhanced process number animation */
.process-number {
  will-change: transform;
}

/* Better mobile touch targets */
@media (max-width: 768px) {
  .nav-link,
  .tab-button,
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
}

/* Improved contrast for light mode */
body.light-mode .card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body.light-mode .card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* Enhanced gradient overlays */
.hero-gradient-overlay {
  mix-blend-mode: multiply;
}

body.light-mode .hero-gradient-overlay {
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* Smooth color transitions for theme switching */
* {
  transition: background-color 0.3s ease,
              color 0.3s ease,
              border-color 0.3s ease;
}

/* Enhanced section backgrounds */
.section {
  background-attachment: fixed;
  background-size: cover;
}

/* Improved text readability */
.section-description,
.card-text,
.para-body {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Enhanced visual hierarchy */
.section-title {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

body.light-mode .section-title {
  text-shadow: none;
}

/* Better spacing consistency */
.section + .section {
  margin-top: var(--spacing-10);
}

/* Enhanced agent detail panel */
.agent-detail {
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

/* Improved role panel styling */
.role-panel {
  position: relative;
}

.role-panel::before {
  opacity: 0.3;
  transition: opacity var(--transition-base);
}

.role-panel:hover::before {
  opacity: 0.5;
}

/* Enhanced metric card hover */
.metric-card:hover .metric-value {
  transform: scale(1.05);
  transition: transform var(--transition-base);
}

/* Better visual feedback for interactive elements */
.nav-link:active,
.tab-button:active,
.agent-card:active {
  transform: scale(0.98);
}

/* Enhanced accessibility - larger focus rings */
*:focus-visible {
  outline-width: 3px;
  outline-offset: 4px;
}

/* Improved loading states */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.loading {
  animation: shimmer 2s infinite linear;
  background: linear-gradient(
    to right,
    var(--bg-elevated) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    var(--bg-elevated) 100%
  );
  background-size: 1000px 100%;
}

/* Enhanced scrollbar for better visibility */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--sas-cardinal), var(--sas-gold));
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--sas-gold), var(--sas-cardinal));
}

/* Better mobile experience */
@media (max-width: 640px) {
  .hero-content {
    padding: var(--spacing-6) var(--spacing-4);
  }
  
  .section {
    padding: var(--spacing-4);
  }
  
  .card {
    padding: var(--spacing-4);
  }
}

/* Enhanced visual feedback */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Improved contrast for better readability */
body.light-mode .text-secondary {
  color: var(--grey-700);
}

body.light-mode .text-muted {
  color: var(--grey-500);
}

/* Enhanced section tag styling */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* Better visual separation */
.section + .section::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
  margin-bottom: var(--spacing-10);
}