/* ============================================================
   JAKOJAK TOOLS — Global Design System
   ============================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  /* ---- Color Palette (Dark Mode Default) ---- */
  --color-primary: #06b6d4;
  --color-primary-hover: #22d3ee;
  --color-primary-muted: rgba(6, 182, 212, 0.15);
  --color-primary-glow: rgba(6, 182, 212, 0.25);

  --color-accent: #8b5cf6;
  --color-accent-hover: #a78bfa;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* ---- Backgrounds ---- */
  --bg-body: #0a0a0f;
  --bg-surface: #12121a;
  --bg-surface-hover: #1a1a25;
  --bg-card: rgba(18, 18, 26, 0.8);
  --bg-card-hover: rgba(26, 26, 37, 0.9);
  --bg-input: #0d0d14;
  --bg-code: #0d0d14;
  --bg-glass: rgba(18, 18, 26, 0.6);

  /* ---- Text ---- */
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b5;
  --text-muted: #6b6b80;
  --text-inverse: #0a0a0f;

  /* ---- Borders ---- */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-color-hover: rgba(255, 255, 255, 0.12);
  --border-color-focus: var(--color-primary);

  /* ---- Spacing ---- */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* ---- Typography ---- */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-hero: clamp(2.5rem, 5vw, 4rem);

  /* ---- Radii ---- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--color-primary-glow);

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* ---- Layout ---- */
  --max-width: 1200px;
  --header-height: 64px;
  --sidebar-width: 280px;
}

/* ============================================================
   Light Mode Override
   ============================================================ */
[data-theme="light"] {
  --bg-body: #f5f5fa;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f0f0f5;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(245, 245, 250, 0.95);
  --bg-input: #f0f0f5;
  --bg-code: #f0f0f5;
  --bg-glass: rgba(255, 255, 255, 0.7);

  --text-primary: #1a1a2e;
  --text-secondary: #4a4a60;
  --text-muted: #8a8aa0;
  --text-inverse: #f0f0f5;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.15);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::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-color: var(--bg-body);
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

code,
pre {
  font-family: var(--font-mono);
}

::selection {
  background: var(--color-primary-muted);
  color: var(--color-primary-hover);
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--wide {
  max-width: 1400px;
}

.container--narrow {
  max-width: 800px;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-base);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.site-logo span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ---- Theme Toggle ---- */
.theme-toggle {
  position: relative;
  width: 48px;
  height: 26px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: background var(--transition-base);
  padding: 0;
}

.theme-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  transition: transform var(--transition-base);
  box-shadow: 0 0 8px var(--color-primary-glow);
}

[data-theme="light"] .theme-toggle::after {
  transform: translateX(22px);
  background: var(--color-warning);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
}

.theme-toggle .icon-moon,
.theme-toggle .icon-sun {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  line-height: 1;
  transition: opacity var(--transition-fast);
}

.theme-toggle .icon-moon {
  left: 6px;
  opacity: 1;
}

.theme-toggle .icon-sun {
  right: 6px;
  opacity: 0.4;
}

[data-theme="light"] .theme-toggle .icon-moon {
  opacity: 0.4;
}

[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 1;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero h1 {
  font-size: var(--font-size-hero);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Category Filter
   ============================================================ */
.category-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
  padding: 0 var(--space-md);
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--border-color-hover);
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.filter-btn.active {
  background: var(--color-primary-muted);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================================
   Tool Grid
   ============================================================ */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

/* ============================================================
   Tool Card
   ============================================================ */
.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-muted);
  font-size: 24px;
  margin-bottom: var(--space-md);
  transition: transform var(--transition-base);
}

.tool-card:hover .tool-card__icon {
  transform: scale(1.1);
}

.tool-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.tool-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  flex-grow: 1;
}

.tool-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-md);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  width: fit-content;
}

.tool-card__badge--free {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.tool-card__badge--coming {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.tool-card.coming-soon {
  opacity: 0.5;
  pointer-events: none;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-color-hover);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--text-inverse);
  font-weight: 600;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-glow);
}

.btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  font-weight: 600;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--bg-surface);
}

.btn-sm {
  padding: 4px var(--space-md);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* ============================================================
   Tool Page Layout
   ============================================================ */
.tool-page {
  padding: var(--space-xl) 0 var(--space-3xl);
}

.tool-header {
  margin-bottom: var(--space-xl);
}

.tool-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
}

.tool-header p {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

.tool-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

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

.tool-breadcrumb a:hover {
  color: var(--color-primary);
}

.tool-workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.tool-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tool-pane__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-glass);
}

.tool-pane__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.tool-pane__actions {
  display: flex;
  gap: var(--space-xs);
}

.tool-pane__body {
  flex: 1;
  padding: 0;
}

.tool-pane__body textarea {
  width: 100%;
  height: 100%;
  min-height: 400px;
  padding: var(--space-lg);
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.7;
}

.tool-pane__body textarea::placeholder {
  color: var(--text-muted);
}

.tool-pane__body pre {
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.7;
  overflow: auto;
  min-height: 400px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---- Tool Controls Bar ---- */
.tool-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  flex-wrap: wrap;
}

/* ---- Select Input ---- */
.select-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.select-wrapper select {
  appearance: none;
  padding: var(--space-sm) var(--space-xl) var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.select-wrapper select:hover {
  border-color: var(--border-color-hover);
}

.select-wrapper select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-muted);
}

.select-wrapper::after {
  content: '▾';
  position: absolute;
  right: 10px;
  color: var(--text-muted);
  pointer-events: none;
  font-size: 12px;
}

/* ============================================================
   Status / Alerts
   ============================================================ */
.status-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.status-bar--success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.status-bar--error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--color-error);
}

.status-bar--info {
  background: var(--color-primary-muted);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--color-primary);
}

/* ============================================================
   Ad Placeholder
   ============================================================ */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  margin: var(--space-xl) 0;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.site-footer a {
  color: var(--text-secondary);
}

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

/* ============================================================
   Scrollbar
   ============================================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-color-hover);
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

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

/* Staggered grid animation — delays applied via JS for correct ordering */
.tool-grid .tool-card {
  opacity: 0;
  animation: fadeIn 0.4s ease forwards;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

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

  .tool-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .tool-workspace {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .tool-controls {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .category-filter {
    gap: var(--space-xs);
  }

  .filter-btn {
    padding: 6px var(--space-md);
    font-size: var(--font-size-xs);
  }

  .tool-card {
    padding: var(--space-lg);
  }
}

/* ============================================================
   Syntax Highlighting (for code output)
   ============================================================ */
.syntax-string {
  color: #a5d6a7;
}

.syntax-number {
  color: #f48fb1;
}

.syntax-boolean {
  color: #ce93d8;
}

.syntax-null {
  color: #ef9a9a;
}

.syntax-key {
  color: #90caf9;
}

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

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

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

/* ============================================================
   Toast / Notification
   ============================================================ */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: none;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast--success {
  border-color: rgba(16, 185, 129, 0.3);
}

.toast--error {
  border-color: rgba(239, 68, 68, 0.3);
}