/* ==========================================================================
   RandomlyTools - Core Design System & Stylesheet
   Designed for speed, accessibility, mobile-first responsiveness, and clarity.
   ========================================================================== */

:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Colors */
  --bg-canvas: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-subtle: #f1f5f9;
  --bg-surface-hover: #e2e8f0;
  
  --border-color: #e2e8f0;
  --border-focus: #6366f1;
  --border-subtle: #cbd5e1;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-text: #4338ca;

  --accent-green: #10b981;
  --accent-green-light: #ecfdf5;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);

  --max-w-content: 1120px;
  --header-height: 68px;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-canvas);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text-secondary);
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.85rem, 3.5vw, 2.5rem); margin-bottom: 0.75rem; }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.75rem); margin-top: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.2rem; margin-top: 1.5rem; margin-bottom: 0.5rem; }

p {
  margin-bottom: 1rem;
  line-height: 1.65;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-w-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
}

.brand-text span {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.25rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background-color: var(--primary-light);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  padding: 3rem 0 2rem;
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-canvas) 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background-color: var(--primary-light);
  color: var(--primary-text);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(79, 70, 229, 0.15);
}

.hero p {
  max-width: 640px;
  margin: 0 auto 1.5rem;
  font-size: 1.125rem;
  color: var(--text-muted);
}

/* Quick Search / Filter Bar */
.tool-filter-box {
  max-width: 480px;
  margin: 1.5rem auto 0;
  position: relative;
}

.tool-filter-box input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.tool-filter-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.tool-filter-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Tool Grid (Homepage) */
.section-header {
  margin: 2.5rem 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section-header h2 {
  margin: 0;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.tool-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
}

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

.tool-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.tool-card-title {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.tool-card-title a {
  color: var(--text-primary);
  text-decoration: none;
}

.tool-card-title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.tool-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.tool-card-badge {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-subtle);
  color: var(--text-secondary);
}

/* ==========================================================================
   Tool Page Layout & Workspace
   ========================================================================== */

.page-intro {
  padding: 2rem 0 1.5rem;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

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

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

.tool-workspace {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .tool-workspace {
    padding: 2rem;
  }
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group .field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-control,
.form-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  font-size: 0.95rem;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.radio-pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.radio-pill {
  cursor: pointer;
}

.radio-pill input {
  display: none;
}

.radio-pill span {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary);
  user-select: none;
  transition: all 0.15s;
}

.radio-pill input:checked + span {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  font-family: inherit;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: var(--text-inverse);
}

.btn-secondary {
  background-color: var(--bg-surface-subtle);
  color: var(--text-secondary);
  border-color: var(--border-color);
}

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

.btn-outline {
  background: transparent;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

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

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

/* Presets Bar */
.presets-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.presets-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.preset-chip {
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.preset-chip:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(79, 70, 229, 0.3);
}

/* Results Display Area */
.results-container {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--border-color);
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.results-count {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}

.result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.15s;
}

.result-item:hover {
  border-color: var(--primary);
  background: var(--bg-surface);
  box-shadow: var(--shadow-sm);
}

.result-text {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

.result-subtext {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  font-weight: 400;
  margin-top: 0.15rem;
}

.copy-btn {
  background: none;
  border: none;
  padding: 0.35rem 0.5rem;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.copy-btn:hover {
  color: var(--primary);
  background: var(--primary-light);
}

/* Number Display (Single / Big) */
.number-hero-display {
  padding: 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-surface-subtle) 0%, var(--bg-surface) 100%);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
}

.number-hero-value {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}

/* Empty State */
.empty-results {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  opacity: 0.6;
}

/* ==========================================================================
   Article, FAQ & Content Sections (SEO Optimized)
   ========================================================================== */

.content-section {
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
}

.article-content {
  max-width: 800px;
}

.article-content h2 {
  font-size: 1.4rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.article-content ul, 
.article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.article-content li {
  margin-bottom: 0.4rem;
  line-height: 1.6;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
  max-width: 800px;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  overflow: hidden;
}

.faq-item summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Related Tools */
.related-tools-section {
  padding: 2.5rem 0;
  background: var(--bg-surface-subtle);
  border-top: 1px solid var(--border-color);
}

/* AdSense Compliant Slots */
.ad-slot-container {
  margin: 2rem auto;
  text-align: center;
  max-width: 728px;
}

.ad-slot-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.ad-slot-box {
  min-height: 90px;
  background: var(--bg-surface-subtle);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Disclaimer Callout */
.disclaimer-callout {
  padding: 1rem 1.25rem;
  background-color: var(--bg-surface-subtle);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 1.5rem 0;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: toastIn 0.2s ease-out;
  pointer-events: auto;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 0.75rem;
  max-width: 320px;
  font-size: 0.875rem;
}

.footer-column h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-column a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.825rem;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.25rem;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }
}
 
/* ==========================================================================
   Random Team Generator — Textarea, Validation & Team Cards
   ========================================================================== */

.field-message {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.field-message.field-error {
  color: var(--accent-red, #dc2626);
  background: var(--accent-red-light, #fef2f2);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-weight: 500;
}

.teams-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.team-card {
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  transition: all 0.15s;
}

.team-card:hover {
  border-color: var(--primary);
  background: var(--bg-surface);
  box-shadow: var(--shadow-sm);
}

.team-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color);
}

.team-card-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.team-card-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.team-member-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.team-member-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  word-break: break-word;
}

@media (max-width: 768px) {
  .teams-results-grid {
    grid-template-columns: 1fr;
  }
}