/**
 * IGTools Suite - Global Design System & Component Styles
 */

:root {
  --ig-primary: #D97757;
  --ig-primary-hover: #B8552F;
  --ig-primary-tint: rgba(217, 119, 87, 0.12);
  --ig-primary-glow: rgba(217, 119, 87, 0.25);
  
  --ig-bg: #FFFFFF;
  --ig-bg-alt: #F9FAFB;
  --ig-card: #FFFFFF;
  --ig-card-alt: #F3F4F6;
  --ig-border: #E5E7EB;
  --ig-border-hover: #D1D5DB;
  
  --ig-text: #111827;
  --ig-text-soft: #374151;
  --ig-text-muted: #6B7280;
  
  --ig-radius-sm: 8px;
  --ig-radius-md: 12px;
  --ig-radius-lg: 16px;
  --ig-radius-xl: 24px;
  
  --ig-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --ig-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --ig-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  
  --ig-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

[data-theme="dark"] {
  --ig-bg: #0F172A;
  --ig-bg-alt: #1E293B;
  --ig-card: #1E293B;
  --ig-card-alt: #334155;
  --ig-border: #334155;
  --ig-border-hover: #475569;
  
  --ig-text: #F8FAFC;
  --ig-text-soft: #E2E8F0;
  --ig-text-muted: #94A3B8;
  
  --ig-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --ig-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --ig-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

body {
  margin: 0;
  font-family: var(--ig-font-sans);
  background-color: var(--ig-bg);
  color: var(--ig-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ==================== Global Header ==================== */
.ig-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ig-border);
  transition: background 0.25s ease, border-color 0.25s ease;
}

[data-theme="dark"] .ig-header {
  background: rgba(15, 23, 42, 0.85);
}

.ig-header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ig-brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.ig-brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--ig-radius-md);
  background: linear-gradient(135deg, var(--ig-primary), var(--ig-primary-hover));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px var(--ig-primary-glow);
}

.ig-brand-text {
  display: flex;
  flex-direction: column;
}

.ig-brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ig-text);
  line-height: 1;
}

.ig-brand-sub {
  font-size: 0.72rem;
  color: var(--ig-text-muted);
  font-weight: 500;
  margin-top: 0.2rem;
}

/* Desktop Nav */
.ig-desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.ig-nav-link {
  text-decoration: none;
  color: var(--ig-text-soft);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.ig-nav-link:hover {
  color: var(--ig-primary);
}

.ig-dropdown {
  position: relative;
}

.ig-dropdown-btn {
  background: none;
  border: none;
  color: var(--ig-text-soft);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  padding: 0.5rem 0;
  transition: color 0.15s ease;
}

.ig-dropdown-btn:hover {
  color: var(--ig-primary);
}

.ig-dropdown-menu {
  position: absolute;
  top: 100%;
  left: -150px;
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-lg);
  box-shadow: var(--ig-shadow-lg);
  padding: 1.25rem;
  display: none;
  grid-template-columns: repeat(3, 200px);
  gap: 1.5rem;
  z-index: 1010;
}

.ig-dropdown:hover .ig-dropdown-menu {
  display: grid;
}

.ig-dropdown-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ig-dropdown-group-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ig-primary);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.ig-dropdown-col a {
  text-decoration: none;
  color: var(--ig-text-soft);
  font-size: 0.88rem;
  padding: 0.35rem 0.5rem;
  border-radius: var(--ig-radius-sm);
  transition: all 0.15s ease;
}

.ig-dropdown-col a:hover {
  background: var(--ig-primary-tint);
  color: var(--ig-primary);
}

.ig-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ig-icon-btn, .ig-hamburger-btn {
  background: var(--ig-card-alt);
  border: 1px solid var(--ig-border);
  color: var(--ig-text);
  border-radius: var(--ig-radius-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ig-icon-btn:hover, .ig-hamburger-btn:hover {
  background: var(--ig-primary-tint);
  border-color: var(--ig-primary);
  color: var(--ig-primary);
}

.ig-sun-icon { display: block; }
.ig-moon-icon { display: none; }
[data-theme="dark"] .ig-sun-icon { display: none; }
[data-theme="dark"] .ig-moon-icon { display: block; }

.ig-hamburger-btn { display: none; }

/* Mobile Drawer */
.ig-mobile-drawer {
  display: none;
  background: var(--ig-card);
  border-bottom: 1px solid var(--ig-border);
  padding: 1rem 1.5rem 1.5rem;
}

.ig-mobile-drawer.active {
  display: block;
}

.ig-drawer-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ig-drawer-content a {
  text-decoration: none;
  color: var(--ig-text);
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: var(--ig-radius-sm);
}

.ig-drawer-content a:hover {
  background: var(--ig-primary-tint);
  color: var(--ig-primary);
}

@media (max-width: 992px) {
  .ig-desktop-nav { display: none; }
  .ig-hamburger-btn { display: flex; }
}

/* ==================== Main Page Layout & Hero ==================== */
.ig-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.ig-hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  max-width: 800px;
  margin: 0 auto;
}

.ig-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background: var(--ig-primary-tint);
  color: var(--ig-primary);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
}

.ig-hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ig-text);
  margin: 0 0 1.25rem;
}

.ig-hero-desc {
  font-size: 1.15rem;
  color: var(--ig-text-muted);
  line-height: 1.6;
  margin: 0 0 2.5rem;
}

/* ==================== Tool Input Widget ==================== */
.ig-tool-widget {
  max-width: 750px;
  margin: 0 auto 3rem;
}

.ig-input-card {
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-xl);
  padding: 1.25rem;
  box-shadow: var(--ig-shadow-md);
  transition: all 0.2s ease;
}

.ig-input-card:focus-within {
  border-color: var(--ig-primary);
  box-shadow: 0 0 0 4px var(--ig-primary-tint), var(--ig-shadow-md);
}

.ig-input-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--ig-bg-alt);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-lg);
  padding: 0.5rem 0.75rem;
}

.ig-input-prefix {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ig-text-muted);
  padding-left: 0.5rem;
  user-select: none;
}

.ig-tool-input {
  flex: 1;
  background: transparent;
  border: none;
  font-size: 1.05rem;
  color: var(--ig-text);
  font-family: inherit;
  outline: none;
  padding: 0.5rem 0;
}

.ig-tool-input::placeholder {
  color: var(--ig-text-muted);
}

.ig-action-btn {
  background: var(--ig-primary);
  color: #fff;
  border: none;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--ig-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.ig-action-btn:hover {
  background: var(--ig-primary-hover);
  transform: translateY(-1px);
}

.ig-action-btn:active {
  transform: translateY(0);
}

.ig-action-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ig-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ig-spin 0.6s linear infinite;
}

@keyframes ig-spin {
  to { transform: rotate(360deg); }
}

.ig-tool-error {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: #FEF2F2;
  border: 1px solid #F87171;
  border-radius: var(--ig-radius-md);
  color: #B91C1C;
  font-size: 0.9rem;
  font-weight: 500;
}

[data-theme="dark"] .ig-tool-error {
  background: #450A0A;
  border-color: #991B1B;
  color: #FCA5A5;
}

/* ==================== Results Display Containers ==================== */
.ig-results-container {
  margin-top: 2rem;
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-xl);
  padding: 2rem;
  box-shadow: var(--ig-shadow-md);
}

/* Follower Table */
.ig-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.ig-table-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.ig-download-csv-btn {
  background: var(--ig-primary);
  color: #fff;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: var(--ig-radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ig-table-wrapper {
  overflow-x: auto;
}

.ig-data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.ig-data-table th, .ig-data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--ig-border);
  font-size: 0.9rem;
}

.ig-data-table th {
  background: var(--ig-bg-alt);
  font-weight: 700;
  color: var(--ig-text-soft);
}

.ig-user-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ig-avatar-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--ig-card-alt);
}

/* Video & Media Results */
.ig-media-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
  text-align: center;
}

.ig-video-player {
  max-width: 480px;
  width: 100%;
  border-radius: var(--ig-radius-lg);
  overflow: hidden;
  box-shadow: var(--ig-shadow-md);
}

.ig-btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ==================== Font Generator Cards Grid ==================== */
.ig-fonts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.ig-font-card {
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: all 0.15s ease;
}

.ig-font-card:hover {
  border-color: var(--ig-primary);
  box-shadow: var(--ig-shadow-md);
}

.ig-font-style-name {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ig-text-muted);
  font-weight: 700;
}

.ig-font-preview {
  font-size: 1.25rem;
  color: var(--ig-text);
  word-break: break-word;
  min-height: 2rem;
}

.ig-copy-btn {
  align-self: flex-end;
  background: var(--ig-card-alt);
  color: var(--ig-text);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-sm);
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ig-copy-btn:hover {
  background: var(--ig-primary);
  color: #fff;
  border-color: var(--ig-primary);
}

/* Clipboard Toast */
.ig-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #10B981;
  color: #fff;
  padding: 0.85rem 1.5rem;
  border-radius: var(--ig-radius-md);
  font-weight: 600;
  box-shadow: var(--ig-shadow-lg);
  z-index: 9999;
  display: none;
  animation: ig-toast-in 0.25s ease;
}

@keyframes ig-toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== 3-Step How-To Section ==================== */
.ig-how-to-section {
  padding: 4rem 1.5rem;
  text-align: center;
}

.ig-section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.ig-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.ig-step-card {
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-lg);
  padding: 2rem 1.5rem;
  text-align: left;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.ig-step-card:hover {
  transform: translateY(-4px);
  border-color: var(--ig-primary);
  box-shadow: var(--ig-shadow-md);
}

.ig-step-number {
  width: 36px;
  height: 36px;
  background: var(--ig-primary-tint);
  color: var(--ig-primary);
  border-radius: var(--ig-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.ig-step-card h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.ig-step-card p {
  font-size: 0.9rem;
  color: var(--ig-text-muted);
  margin: 0;
  line-height: 1.5;
}

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

/* ==================== Related Tools Section ==================== */
.ig-related-tools-section {
  padding: 4rem 1.5rem;
  text-align: center;
  background: var(--ig-bg-alt);
  border-top: 1px solid var(--ig-border);
  border-bottom: 1px solid var(--ig-border);
}

.ig-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.ig-tool-card {
  background: var(--ig-card);
  border: 1px solid var(--ig-border);
  border-radius: var(--ig-radius-lg);
  padding: 1.75rem 1.25rem;
  text-align: left;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

.ig-tool-card:hover {
  border-color: var(--ig-primary);
  transform: translateY(-3px);
  box-shadow: var(--ig-shadow-md);
}

.ig-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--ig-radius-md);
  background: var(--ig-primary-tint);
  color: var(--ig-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.ig-tool-card h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.ig-tool-card p {
  font-size: 0.88rem;
  color: var(--ig-text-muted);
  margin: 0;
}

/* ==================== FAQ Accordion ==================== */
.ig-faq-section {
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}

.ig-faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.ig-faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ig-text);
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ig-faq-question svg {
  transition: transform 0.2s ease;
}

.ig-faq-question[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.ig-faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--ig-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==================== Footer ==================== */
.ig-footer {
  background: var(--ig-bg-alt);
  border-top: 1px solid var(--ig-border);
  padding: 4rem 1.5rem 2rem;
}

.ig-footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.ig-footer-desc {
  color: var(--ig-text-muted);
  font-size: 0.9rem;
  max-width: 350px;
  margin: 1rem 0;
}

.ig-footer-timestamp {
  font-size: 0.75rem;
  color: var(--ig-text-muted);
}

.ig-footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  color: var(--ig-text);
}

.ig-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ig-footer-links a {
  text-decoration: none;
  color: var(--ig-text-muted);
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

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

.ig-footer-bottom {
  border-top: 1px solid var(--ig-border);
  padding-top: 2rem;
  text-align: center;
  color: var(--ig-text-muted);
  font-size: 0.82rem;
}

@media (max-width: 768px) {
  .ig-footer-container { grid-template-columns: 1fr; gap: 2rem; }
}