/* ==========================================================================
   InnoviTecho - Clean, Modern Home Styles
   Ultra-clean, uncluttered, tool-focused design with light and dark themes.
   ========================================================================== */

:root {
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --border-color: #e2e8f0;
  --border-focus: #2563eb;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.08);

  --badge-live-bg: #ecfdf5;
  --badge-live-text: #059669;
  --badge-live-border: #a7f3d0;

  --badge-soon-bg: #fffbeb;
  --badge-soon-text: #d97706;
  --badge-soon-border: #fde68a;

  --badge-new-bg: #eff6ff;
  --badge-new-text: #2563eb;
  --badge-new-border: #bfdbfe;

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);

  --radius: 12px;
  --radius-sm: 6px;
  --radius-full: 9999px;
}

[data-theme="dark"] {
  --bg-page: #0a0e17;
  --bg-surface: #111827;
  --bg-subtle: #1a2333;
  --bg-hover: #243046;

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

  --border-color: #1e293b;
  --border-focus: #3b82f6;

  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-soft: rgba(59, 130, 246, 0.15);

  --badge-live-bg: rgba(16, 185, 129, 0.12);
  --badge-live-text: #34d399;
  --badge-live-border: rgba(16, 185, 129, 0.25);

  --badge-soon-bg: rgba(245, 158, 11, 0.12);
  --badge-soon-text: #fbbf24;
  --badge-soon-border: rgba(245, 158, 11, 0.25);

  --badge-new-bg: rgba(59, 130, 246, 0.15);
  --badge-new-text: #60a5fa;
  --badge-new-border: rgba(59, 130, 246, 0.3);

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
}

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

/* Header */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s ease;
}

[data-theme="dark"] .top-nav {
  background-color: rgba(10, 14, 23, 0.92);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.brand-img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.nav-actions::-webkit-scrollbar {
  display: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-subtle);
}

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

.icon-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}

.icon-btn:hover {
  background: var(--bg-subtle);
  border-color: var(--text-muted);
}

/* Hero */
.hero {
  padding: 3.5rem 0 2rem;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--badge-live-text);
}

.hero-heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 0.65rem;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 1.75rem;
  line-height: 1.5;
}

/* Search & Tabs Toolbar */
.toolbar-wrap {
  max-width: 700px;
  margin: 0 auto 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.search-input-box {
  width: 100%;
  position: relative;
}

.search-input-box input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  box-shadow: var(--shadow-card);
  transition: all 0.2s ease;
}

.search-input-box input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-icon-pos {
  position: absolute;
  left: 0.95rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 0.9rem;
}

.tabs-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-subtle);
  padding: 0.25rem;
  border-radius: var(--radius-full);
}

.tab-btn {
  background: transparent;
  border: none;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
}

/* Cards Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.tool-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.tool-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}

.tile-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tile-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.tile-badge {
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tile-badge.live {
  background: var(--badge-live-bg);
  color: var(--badge-live-text);
  border: 1px solid var(--badge-live-border);
}

.tile-badge.new {
  background: var(--badge-new-bg);
  color: var(--badge-new-text);
  border: 1px solid var(--badge-new-border);
}

.tile-badge.soon {
  background: var(--badge-soon-bg);
  color: var(--badge-soon-text);
  border: 1px solid var(--badge-soon-border);
}

.tile-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.tile-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

/* Template Shelf Preview */
.tile-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-bottom: 1rem;
  background: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius-sm);
}

.tile-thumbs img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 4px;
}

.tile-foot {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tile-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.tile-btn {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: transform 0.15s ease;
}

.tool-tile:hover .tile-btn {
  transform: translateX(3px);
}

/* Minimal Micro-Trust Bar */
.trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 3.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.trust-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trust-cell strong {
  color: var(--text-primary);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

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

@media (max-width: 640px) {
  .hero { padding: 2.5rem 0 1.5rem; }
  .tools-grid { grid-template-columns: 1fr; }
  .trust-strip { flex-direction: column; gap: 0.75rem; align-items: flex-start; }
  .footer-row { flex-direction: column; align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   Shared Page Styles (About, Contact, Help, Legal)
   -------------------------------------------------------------------------- */
.page-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
  width: 100%;
}

.page-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.page-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.15;
}

.page-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}

.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  margin-bottom: 2rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.panel-card:hover {
  border-color: var(--border-focus);
}

.panel-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.panel-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.panel-body p {
  margin-bottom: 1rem;
}

.panel-body p:last-child {
  margin-bottom: 0;
}

/* Contact Form Specific Styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.input-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
}

.input-field-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.input-field-group input,
.input-field-group select,
.input-field-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: all 0.15s ease;
}

.input-field-group input:focus,
.input-field-group select:focus,
.input-field-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.input-field-group textarea {
  min-height: 130px;
  resize: vertical;
}

.btn-form-submit {
  background: var(--accent);
  color: #ffffff;
  border: none;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.15s ease;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25);
  margin-top: 0.5rem;
}

.btn-form-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.35);
}

.btn-form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-top: 1rem;
}

.form-alert.success {
  background: var(--badge-live-bg);
  border: 1px solid var(--badge-live-border);
  color: var(--badge-live-text);
}

.form-alert.error {
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #dc2626;
}

[data-theme="dark"] .form-alert.error {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.form-alert.info {
  background: var(--accent-soft);
  border: 1px solid var(--border-focus);
  color: var(--accent);
}

.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.channel-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  box-shadow: var(--shadow-card);
}

.channel-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.channel-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.channel-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.channel-info a {
  color: var(--accent);
  font-weight: 600;
}

.channel-info a:hover {
  text-decoration: underline;
}

/* Feature Grid for About Page */
.about-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 1.75rem 0;
}

.about-feature-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.about-feature-item h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.about-feature-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .form-grid-2 { grid-template-columns: 1fr; }
  .about-features-grid { grid-template-columns: 1fr; }
  .page-container { padding: 2rem 1rem 4rem; }
}

/* --------------------------------------------------------------------------
   Shared Legal Pages (Privacy Policy, Terms of Service)
   -------------------------------------------------------------------------- */
.legal-page {
  max-width: 860px;
  margin: 2rem auto 4rem;
  padding: 0 1.5rem;
  line-height: 1.75;
}

.legal-header {
  text-align: center;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.legal-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.legal-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.legal-section {
  margin-bottom: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.legal-section .section-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
}

.legal-section .section-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.25rem 0 0.5rem;
}

.legal-section .section-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.legal-section .section-content ul,
.legal-section .section-content ol {
  margin: 1rem 0 1rem 1.5rem;
  color: var(--text-secondary);
}

.legal-section .section-content li {
  margin-bottom: 0.5rem;
}

.highlight-box {
  background: var(--accent-soft);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0 2rem;
  color: var(--text-primary);
}

.highlight-box h4 {
  color: var(--accent);
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.highlight-box p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.warning-box {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0 2rem;
}

.warning-box h4 {
  color: #ef4444;
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.warning-box p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.update-date {
  font-style: italic;
  color: var(--text-muted);
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Shared Tutorial & FAQ Styles (Help Page)
   -------------------------------------------------------------------------- */
.tutorial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 0.5rem;
}

.tutorial-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.tutorial-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.tutorial-description {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  line-height: 1.45;
}

.tutorial-steps ol {
  margin: 0 0 0 1.25rem;
  padding: 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.tutorial-steps li {
  margin-bottom: 0.35rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
}

.faq-item:first-child {
  padding-top: 0.5rem;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0.5rem;
}

.faq-question {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.faq-answer {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.faq-answer ul, .faq-answer ol {
  margin: 0.5rem 0 0.5rem 1.25rem;
}

.faq-answer li {
  margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   Shared Blog Styles
   -------------------------------------------------------------------------- */
.blog-posts {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.blog-post {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.blog-post:hover {
  transform: translateY(-2px);
  border-color: var(--border-focus);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.post-category {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.75rem;
}

.post-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.post-excerpt {
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.read-more {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.read-more:hover {
  text-decoration: underline;
}