:root {
  color-scheme: dark;
  --app-bg: #020617;
  --app-panel: #0b1220;
  --panel-border: rgba(255, 255, 255, 0.08);
  --accent: #2dd4bf;
  --accent-2: #22c55e;
  --muted: #94a3b8;
  --foreground: #e2e8f0;
}

[data-theme="light"] {
  color-scheme: light;
  --app-bg: #f8fafc;
  --app-panel: #ffffff;
  --panel-border: rgba(15, 23, 42, 0.12);
  --accent: #0ea5e9;
  --accent-2: #14b8a6;
  --muted: #475569;
  --foreground: #0f172a;
}

/* Light mode text overrides */
[data-theme="light"] .text-slate-300 {
  color: #334155 !important;
}

[data-theme="light"] .text-slate-400 {
  color: #475569 !important;
}

[data-theme="light"] .text-slate-500 {
  color: #64748b !important;
}

[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] .font-display {
  color: #0f172a !important;
}

[data-theme="light"] .hero-gradient {
  background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 100%);
}

[data-theme="light"] .header-bg,
[data-theme="light"] .footer-bg {
  background: rgba(248, 250, 252, 0.95);
}

[data-theme="light"] .kpi-card {
  background: rgba(14, 165, 233, 0.05);
  border: 1px solid rgba(14, 165, 233, 0.1);
}

body {
  font-family: "IBM Plex Sans", sans-serif;
  background: var(--app-bg);
  color: var(--foreground);
}

.header-bg, .footer-bg {
  background: rgba(2, 6, 23, 0.8);
}

[data-theme="light"] .header-bg,
[data-theme="light"] .footer-bg {
  background: rgba(248, 250, 252, 0.9);
  border-color: rgba(15, 23, 42, 0.12);
}

.font-display {
  font-family: "Space Grotesk", sans-serif;
}

.bg-app {
  background: var(--app-bg);
}

.bg-panel {
  background: color-mix(in srgb, var(--app-panel) 92%, transparent);
}

.text-muted {
  color: var(--muted);
}

.text-foreground {
  color: var(--foreground);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.6rem 1.3rem;
  font-weight: 600;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #02140d;
  box-shadow: 0 12px 30px rgba(45, 212, 191, 0.25);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn-primary:hover {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 16px 36px rgba(34, 197, 94, 0.28);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--foreground);
  transition: border 120ms ease, background 120ms ease;
}

[data-theme="light"] .btn-outline {
  border: 1px solid rgba(15, 23, 42, 0.2);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
}

[data-theme="light"] .btn-outline:hover {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.25);
}

.panel {
  background: var(--app-panel);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
}

.badge {
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.15);
  color: #7cf6d5;
  font-size: 0.75rem;
}

[data-theme="light"] .badge {
  background: rgba(14, 165, 233, 0.12);
  color: #0369a1;
}

.section-title {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.75rem;
}

.hero-gradient {
  background: radial-gradient(circle at top, rgba(34, 197, 94, 0.18), rgba(15, 23, 42, 0.2)),
              radial-gradient(circle at 30% 20%, rgba(45, 212, 191, 0.2), transparent 60%);
}

[data-theme="light"] .hero-gradient {
  background: radial-gradient(circle at top, rgba(14, 165, 233, 0.18), rgba(248, 250, 252, 0.4)),
              radial-gradient(circle at 30% 20%, rgba(20, 184, 166, 0.16), transparent 60%);
}

.kpi-card {
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 1.25rem;
  background: rgba(15, 23, 42, 0.8);
}

[data-theme="light"] .kpi-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 0.65rem 0.8rem;
  color: var(--foreground);
}

[data-theme="light"] .form-input,
[data-theme="light"] .form-select,
[data-theme="light"] .form-textarea {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.2);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: rgba(45, 212, 191, 0.6);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

[data-theme="light"] .form-input:focus,
[data-theme="light"] .form-select:focus,
[data-theme="light"] .form-textarea:focus {
  border-color: rgba(14, 165, 233, 0.6);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* Theme toggle icons */
[data-theme="dark"] .theme-icon-light {
  display: none;
}

[data-theme="light"] .theme-icon-dark {
  display: none;
}

.question-chip {
  text-align: left;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
  font-size: 0.75rem;
  background: rgba(45, 212, 191, 0.08);
  color: var(--foreground);
  transition: all 120ms ease;
  cursor: pointer;
  line-height: 1.4;
}

[data-theme="light"] .question-chip {
  background: rgba(14, 165, 233, 0.08);
}

.question-chip:hover {
  background: rgba(45, 212, 191, 0.15);
  border-color: rgba(45, 212, 191, 0.4);
  transform: translateY(-1px);
}

[data-theme="light"] .question-chip:hover {
  background: rgba(14, 165, 233, 0.15);
  border-color: rgba(14, 165, 233, 0.4);
}

/* Message bubbles */
.message-bubble {
  padding: 1rem;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--panel-border);
}

[data-theme="light"] .message-bubble {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

.message-bubble.user {
  background: rgba(45, 212, 191, 0.12);
  border-color: rgba(45, 212, 191, 0.3);
}

[data-theme="light"] .message-bubble.user {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.25);
}

.message-bubble.typing {
  opacity: 0.7;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

/* Markdown content styling */
.markdown-content {
  line-height: 1.6;
}

.markdown-content p {
  margin: 0.5rem 0;
}

.markdown-content h1, .markdown-content h2, .markdown-content h3 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  margin: 1rem 0 0.5rem 0;
  color: var(--foreground);
}

.markdown-content h1 { font-size: 1.5rem; }
.markdown-content h2 { font-size: 1.25rem; }
.markdown-content h3 { font-size: 1.1rem; }

.markdown-content code {
  background: rgba(45, 212, 191, 0.15);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
}

[data-theme="light"] .markdown-content code {
  background: rgba(14, 165, 233, 0.12);
  color: var(--accent);
}

.markdown-content pre {
  background: rgba(15, 23, 42, 0.9);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.75rem 0;
}

[data-theme="light"] .markdown-content pre {
  background: rgba(15, 23, 42, 0.95);
}

.markdown-content pre code {
  background: none;
  padding: 0;
  color: #e2e8f0;
}

.markdown-content ul, .markdown-content ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.markdown-content li {
  margin: 0.25rem 0;
}

.markdown-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 0.75rem 0;
  color: var(--muted);
  font-style: italic;
}

.markdown-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 0.75rem 0;
}

.markdown-content th, .markdown-content td {
  border: 1px solid var(--panel-border);
  padding: 0.5rem;
  text-align: left;
}

.markdown-content th {
  background: rgba(45, 212, 191, 0.1);
  font-weight: 600;
}

[data-theme="light"] .markdown-content th {
  background: rgba(14, 165, 233, 0.08);
}

.markdown-content a {
  color: var(--accent);
  text-decoration: underline;
}

.markdown-content a:hover {
  color: var(--accent-2);
}

/* Chart container */
.chart-container {
  background: var(--app-panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1rem 0;
}

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

/* Keyframe animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Animation utility classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.6s ease-out forwards;
}

.animate-slide-down {
  animation: slideDown 0.6s ease-out forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Staggered animation delays */
.animate-delay-100 {
  animation-delay: 0.1s;
}

.animate-delay-200 {
  animation-delay: 0.2s;
}

.animate-delay-300 {
  animation-delay: 0.3s;
}

.animate-delay-400 {
  animation-delay: 0.4s;
}

.animate-delay-500 {
  animation-delay: 0.5s;
}

.animate-delay-600 {
  animation-delay: 0.6s;
}

/* Initial state for animations */
[class*="animate-"] {
  opacity: 0;
}

/* Enhanced transitions for interactive elements */
.panel {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(45, 212, 191, 0.15);
}

.btn-primary, .btn-outline {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary::before, .btn-outline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover::before, .btn-outline:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45, 212, 191, 0.4);
}

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

.badge {
  transition: all 0.3s ease;
}

.badge:hover {
  transform: scale(1.05);
  background: rgba(45, 212, 191, 0.25);
}

.kpi-card {
  transition: all 0.3s ease;
}

.kpi-card:hover {
  transform: scale(1.02);
  background: rgba(45, 212, 191, 0.05);
}

.form-input, .form-select, .form-textarea {
  transition: all 0.3s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1);
  transform: translateY(-1px);
}

.question-chip {
  transition: all 0.3s ease;
}

.question-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(45, 212, 191, 0.3);
}

.message-bubble {
  animation: slideUp 0.4s ease-out;
}

header {
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

nav a {
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
}

nav a:hover {
  transform: translateY(-1px);
}

#mobile-nav {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.35s ease;
}

#mobile-nav[data-open="true"] {
  opacity: 1;
}

.mobile-nav-inner {
  border-bottom-left-radius: 24px;
  border-bottom-right-radius: 24px;
  box-shadow: 0 32px 45px rgba(0, 0, 0, 0.45);
  background: color-mix(in srgb, var(--app-panel) 70%, rgba(2, 6, 23, 0.8));
}

.mobile-nav-inner nav {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 1rem;
  padding-top: 1rem;
}

#mobile-nav .nav-link {
  color: var(--foreground);
  font-weight: 600;
  transition: color 0.2s ease, transform 0.2s ease;
}

#mobile-nav .nav-link:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

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

/* Keyframe animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Animation utility classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.6s ease-out forwards;
}

.animate-slide-down {
  animation: slideDown 0.6s ease-out forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Staggered animation delays */
.animate-delay-100 {
  animation-delay: 0.1s;
}

.animate-delay-200 {
  animation-delay: 0.2s;
}

.animate-delay-300 {
  animation-delay: 0.3s;
}

.animate-delay-400 {
  animation-delay: 0.4s;
}

.animate-delay-500 {
  animation-delay: 0.5s;
}

.animate-delay-600 {
  animation-delay: 0.6s;
}

/* Initial state for animations */
[class*="animate-"] {
  opacity: 0;
}

/* Enhanced transitions for interactive elements */
.panel {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(45, 212, 191, 0.15);
}

.btn-primary, .btn-outline {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary::before, .btn-outline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover::before, .btn-outline:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45, 212, 191, 0.4);
}

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

.badge {
  transition: all 0.3s ease;
}

.badge:hover {
  transform: scale(1.05);
  background: rgba(45, 212, 191, 0.25);
}

.kpi-card {
  transition: all 0.3s ease;
}

.kpi-card:hover {
  transform: scale(1.02);
  background: rgba(45, 212, 191, 0.05);
}

.form-input, .form-select, .form-textarea {
  transition: all 0.3s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1);
  transform: translateY(-1px);
}

.question-chip {
  transition: all 0.3s ease;
}

.question-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(45, 212, 191, 0.3);
}

.message-bubble {
  animation: slideUp 0.4s ease-out;
}

header {
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

nav a {
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
}

nav a:hover {
  transform: translateY(-1px);
}