/* ==========================================================================
   AI AGENT HUB - CORE DESIGN SYSTEM & STYLESHEET
   Color Theme: Calm Slate, Deep Navy & Soft Indigo/Teal
   ========================================================================== */

:root {
  /* Dark Mode (Default) */
  --bg-main: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --bg-glass: rgba(15, 23, 42, 0.75);
  --bg-glass-card: rgba(22, 32, 54, 0.65);
  --bg-glass-card-hover: rgba(30, 41, 69, 0.85);
  --bg-input: rgba(15, 23, 42, 0.8);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-card-hover: rgba(99, 102, 241, 0.45);
  --border-focus: rgba(56, 189, 248, 0.6);

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-primary-soft: rgba(99, 102, 241, 0.15);
  
  --accent-cyan: #0ea5e9;
  --accent-cyan-soft: rgba(14, 165, 233, 0.15);

  --accent-teal: #14b8a6;
  --accent-teal-soft: rgba(20, 184, 166, 0.15);

  --accent-green: #10b981;
  --accent-green-soft: rgba(16, 185, 129, 0.15);

  --accent-amber: #f59e0b;
  --accent-amber-soft: rgba(245, 158, 11, 0.15);

  --accent-purple: #8b5cf6;
  --accent-purple-soft: rgba(139, 92, 246, 0.15);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);

  --canvas-node-color: rgba(148, 163, 184, 0.65);
  --canvas-line-color: rgba(99, 102, 241, 0.18);
  --canvas-cursor-glow: rgba(56, 189, 248, 0.25);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Pretendard', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.82);
  --bg-glass-card: rgba(255, 255, 255, 0.75);
  --bg-glass-card-hover: rgba(255, 255, 255, 0.95);
  --bg-input: #ffffff;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-card: rgba(15, 23, 42, 0.1);
  --border-card-hover: rgba(99, 102, 241, 0.5);
  --border-focus: rgba(14, 165, 233, 0.7);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.12);

  --canvas-node-color: rgba(100, 116, 139, 0.5);
  --canvas-line-color: rgba(99, 102, 241, 0.14);
  --canvas-cursor-glow: rgba(14, 165, 233, 0.18);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Atmospheric Gradient */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.09) 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(14, 165, 233, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(20, 184, 166, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #6366f1 0%, #0ea5e9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
  transition: transform var(--transition-normal);
}

.brand-wrap:hover .brand-icon {
  transform: scale(1.05) rotate(4deg);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.nav-item a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item a.active {
  color: var(--accent-primary);
  background: var(--accent-primary-soft);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-info-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(14, 165, 233, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.btn-info-nav:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(14, 165, 233, 0.25));
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.2);
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-card-hover);
  background: var(--bg-surface-elevated);
}

/* ==========================================================================
   Hero Section with Canvas Constellation Animation
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 0 40px;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: auto;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulseAnim 2s infinite ease-in-out;
}

@keyframes pulseAnim {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.gradient-text {
  background: linear-gradient(135deg, #f8fafc 20%, #a5b4fc 60%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #0f172a 20%, #4338ca 60%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 32px;
}

/* Hero Interactive Prompt Bar */
.agent-prompt-box {
  width: 100%;
  max-width: 640px;
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  transition: all var(--transition-normal);
}

.agent-prompt-box:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15), var(--shadow-md);
  background: var(--bg-surface);
}

.prompt-icon {
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  padding-left: 12px;
}

.prompt-input {
  flex: 1;
  height: 44px;
  font-size: 0.98rem;
  color: var(--text-primary);
  background: transparent;
}

.prompt-input::placeholder {
  color: var(--text-subtle);
}

.btn-prompt-exec {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #6366f1, #0ea5e9);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-prompt-exec:hover {
  background: linear-gradient(135deg, #4f46e5, #0284c7);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.quick-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.quick-tag-label {
  font-size: 0.8rem;
  color: var(--text-subtle);
  font-weight: 500;
}

.quick-tag-btn {
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.quick-tag-btn:hover {
  background: var(--accent-primary-soft);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ==========================================================================
   Server Dashboard 4 KPI Cards Section
   ========================================================================== */
.dashboard-section {
  padding: 30px 0 60px;
  position: relative;
  z-index: 2;
}

.section-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.btn-view-all-info {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-normal);
}

.btn-view-all-info:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateX(2px);
}

/* 4 KPI Grid */
.kpi-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.kpi-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--card-color, #6366f1), transparent);
  opacity: 0.8;
}

.kpi-card:hover {
  transform: translateY(-4px);
  background: var(--bg-glass-card-hover);
  border-color: var(--border-card-hover);
  box-shadow: var(--shadow-md);
}

.kpi-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.kpi-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--kpi-bg, rgba(99, 102, 241, 0.12));
  color: var(--kpi-color, #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 12px;
}

.kpi-big-value {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.kpi-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-progress-bg {
  height: 6px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 12px;
}

.kpi-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--card-color, #6366f1), var(--card-color-light, #0ea5e9));
  border-radius: var(--radius-full);
  transition: width 0.6s ease;
}

.kpi-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-subtle);
  font-family: var(--font-mono);
}

.kpi-badge-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

/* ==========================================================================
   AI Agent Features Grid (앞으로 만드는 기능들)
   ========================================================================== */
.features-section {
  padding: 40px 0 80px;
  position: relative;
  z-index: 2;
}

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

.feature-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-5px);
  background: var(--bg-glass-card-hover);
  border-color: var(--border-card-hover);
  box-shadow: var(--shadow-md);
}

.feature-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon-wrap {
  transform: scale(1.08) rotate(3deg);
}

.feature-status-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.tag-ready {
  background: var(--accent-green-soft);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.tag-beta {
  background: var(--accent-cyan-soft);
  color: var(--accent-cyan);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.tag-active {
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.tag-scheduled {
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.feature-title {
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.tech-pill {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-elevated);
  color: var(--text-subtle);
  border: 1px solid var(--border-subtle);
}

.feature-btn-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-launch-agent {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--accent-primary-soft);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.btn-launch-agent:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-icon-sub {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.btn-icon-sub:hover {
  color: var(--text-primary);
  border-color: var(--border-card-hover);
  background: var(--bg-surface-elevated);
}

/* ==========================================================================
   Interactive Agent Modal
   ========================================================================== */
.agent-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 20px;
}

.agent-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.agent-modal-container {
  width: 100%;
  max-width: 640px;
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.94) translateY(20px);
  transition: all var(--transition-smooth);
}

.agent-modal-overlay.active .agent-modal-container {
  transform: scale(1) translateY(0);
}

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

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.modal-body {
  padding: 24px;
}

.modal-console {
  background: #060911;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #38bdf8;
  height: 180px;
  overflow-y: auto;
  margin-bottom: 16px;
  line-height: 1.6;
}

.console-line {
  margin-bottom: 6px;
}

.console-line.success {
  color: #34d399;
}

.console-line.info {
  color: #94a3b8;
}

.modal-input-row {
  display: flex;
  gap: 10px;
}

.modal-input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.modal-input:focus {
  border-color: var(--accent-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 40px 0 30px;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 24px;
}

.footer-info {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}

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

.footer-bottom {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-subtle);
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1080px) {
  .kpi-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    height: 64px;
  }
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .kpi-cards-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .agent-prompt-box {
    flex-direction: column;
    padding: 12px;
  }
  .btn-prompt-exec {
    width: 100%;
    justify-content: center;
  }
}