/* ==========================================================================
   TPI AI DETECTOR — styles aligned with index1.css design system
   ========================================================================== */

:root {
  --primary-color: #4F46E5;
  --secondary-color: #7C3AED;
  --accent-primary: #A78BFA;

  --bg-primary: #0D0C1D;
  --bg-secondary: #1A1A2E;
  --surface-glass: rgba(255, 255, 255, 0.05);
  --surface-glass-hover: rgba(255, 255, 255, 0.08);

  --text-primary: #FFFFFF;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;
  --text-headings: #E5E7EB;

  --border-glass: rgba(255, 255, 255, 0.1);
  --border-glass-hover: rgba(255, 255, 255, 0.2);

  --card-bg: rgba(255, 255, 255, 0.03);
  --card-bg-hover: rgba(255, 255, 255, 0.06);

  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --accent-color: #06b6d4;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-speed: 0.3s;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
}

.detector-app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

.detector-breadcrumbs {
  color: var(--text-tertiary);
  font-size: 0.82rem;
}

.detector-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detector-breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.45rem;
  color: rgba(156, 163, 175, 0.5);
}

.detector-breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
}

.detector-breadcrumbs a:hover,
.detector-breadcrumbs a:focus-visible {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.detector-hero {
  text-align: center;
  padding: 2.5rem 1rem 2rem;
}

.detector-hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  margin: 0 0 0.75rem;
  background: linear-gradient(135deg, #fff 30%, var(--accent-primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.detector-hero .hero-subtitle {
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.15rem);
  max-width: 720px;
  margin: 0 auto 1.25rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.hero-badge i { color: var(--accent-primary); }

/* --------------------------------------------------------------------------
   Tool layout
   -------------------------------------------------------------------------- */
.detector-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 900px) {
  .detector-grid { grid-template-columns: 1fr; }
}

.detector-card {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-headings);
  margin: 0 0 1rem;
}

.card-title i { color: var(--accent-primary); }

/* Input side */
#detector-input {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.65;
  padding: 1rem;
  transition: var(--transition);
}

#detector-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.15);
}

.input-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.detector-counter {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  margin-right: auto;
}

.detector-counter.counter-low { color: var(--warning-color); }

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.analyze-btn {
  width: 100%;
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: #fff;
  border: none;
  border-radius: var(--radius-lg);
  padding: 0.95rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}

.analyze-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(79, 70, 229, 0.45);
}

.analyze-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.analyze-btn.is-busy .btn-icon { animation: spin 1.2s linear infinite; }

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

.privacy-note {
  margin-top: 0.8rem;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.privacy-note i { color: var(--success-color); margin-right: 0.3rem; }

/* Model progress */
.model-progress {
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
}

.model-progress-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.model-progress-track {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

#model-progress-bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-primary));
  transition: width 0.25s ease;
}

/* --------------------------------------------------------------------------
   Results
   -------------------------------------------------------------------------- */
.results-placeholder {
  text-align: center;
  color: var(--text-tertiary);
  padding: 3rem 1rem;
}

.results-placeholder i {
  font-size: 2.4rem;
  color: var(--accent-primary);
  opacity: 0.6;
  margin-bottom: 0.8rem;
  display: block;
}

/* Gauge */
.gauge-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1rem;
}

.gauge-svg { width: 210px; height: 190px; }

.gauge-track, .gauge-arc {
  fill: none;
  stroke-width: 14;
  stroke-linecap: round;
}

.gauge-track { stroke: rgba(255, 255, 255, 0.08); }

.gauge-arc { transition: stroke-dasharray 0.8s cubic-bezier(0.4, 0, 0.2, 1); }

.gauge-arc.gauge-human      { stroke: var(--success-color); }
.gauge-arc.gauge-lean-human { stroke: #34d399; }
.gauge-arc.gauge-mixed      { stroke: var(--warning-color); }
.gauge-arc.gauge-lean-ai    { stroke: #f97316; }
.gauge-arc.gauge-ai         { stroke: var(--danger-color); }

.gauge-center-value {
  font-size: 2.3rem;
  font-weight: 800;
  fill: var(--text-primary);
}

.gauge-center-caption {
  font-size: 0.75rem;
  fill: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Verdict */
.verdict-badge {
  display: inline-block;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.7rem;
}

.verdict-human      { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.verdict-lean-human { background: rgba(52, 211, 153, 0.12); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, 0.35); }
.verdict-mixed      { background: rgba(245, 158, 11, 0.14); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
.verdict-lean-ai    { background: rgba(249, 115, 22, 0.14); color: #fb923c; border: 1px solid rgba(249, 115, 22, 0.4); }
.verdict-ai         { background: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.4); }

.verdict-block { text-align: center; }

.verdict-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0 auto 0.6rem;
  max-width: 420px;
}

.confidence-note {
  color: var(--text-tertiary);
  font-size: 0.82rem;
  margin: 0 0 0.3rem;
}

.engine-note {
  color: var(--text-tertiary);
  font-size: 0.78rem;
  margin: 0;
}

/* Stats */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin: 1rem 0;
}

.stat-chip {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.stat-chip strong { color: var(--text-primary); }

/* Signals */
.signals-card { margin-top: 1.25rem; }

.signals-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.signal-item {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 0.8rem 1rem;
}

.signal-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.signal-name {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-headings);
  flex: 0 0 10.5rem;
}

.signal-meter {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.signal-meter-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  transition: width 0.6s ease;
}

.meter-ai    { background: linear-gradient(90deg, #f97316, var(--danger-color)); }
.meter-mid   { background: var(--warning-color); }
.meter-human { background: var(--success-color); }

.signal-pct {
  flex: 0 0 2.8rem;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.signal-evidence {
  margin: 0.5rem 0 0;
  color: var(--text-tertiary);
  font-size: 0.82rem;
  line-height: 1.5;
}

@media (max-width: 560px) {
  .signal-head { flex-wrap: wrap; }
  .signal-name { flex-basis: 100%; }
}

/* Per-section breakdown */
.paragraph-card { margin-top: 1.25rem; }

.paragraph-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.para-item { }

.para-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.para-label strong { color: var(--text-primary); }

.para-verdict { color: var(--text-tertiary); }

.para-excerpt {
  margin: 0.25rem 0 0;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  font-style: italic;
}

.para-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.para-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.6s ease;
}

.para-bar-fill.gauge-human      { background: var(--success-color); }
.para-bar-fill.gauge-lean-human { background: #34d399; }
.para-bar-fill.gauge-mixed      { background: var(--warning-color); }
.para-bar-fill.gauge-lean-ai    { background: #f97316; }
.para-bar-fill.gauge-ai         { background: var(--danger-color); }

/* --------------------------------------------------------------------------
   Info sections
   -------------------------------------------------------------------------- */
.info-section {
  margin-top: 3.5rem;
}

.info-section h2 {
  text-align: center;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  color: var(--text-headings);
  margin: 0 0 1.75rem;
}

.feature-trio {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--card-bg-hover);
  border-color: var(--border-glass-hover);
  transform: translateY(-3px);
}

.feature-card i {
  font-size: 1.5rem;
  color: var(--accent-primary);
  margin-bottom: 0.75rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.05rem;
  color: var(--text-headings);
  margin: 0 0 0.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* Honesty / limitations */
.limitations-box {
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.limitations-box h2 {
  text-align: left;
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: #fbbf24;
}

.limitations-box ul { margin: 0.5rem 0 0; padding-left: 1.2rem; }
.limitations-box li { margin-bottom: 0.45rem; }

/* FAQ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 0.25rem 1.25rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-headings);
  padding: 0.9rem 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-item summary::after {
  content: '+';
  color: var(--accent-primary);
  font-size: 1.3rem;
  font-weight: 400;
  flex-shrink: 0;
}

.faq-item[open] summary::after { content: '–'; }

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin: 0 0 1rem;
}


/* ==========================================================================
   SITE NAVIGATION (shared structural nav styles — nav_functions.php only
   embeds profile/notification styles; each page must carry these)
   ========================================================================== */
/* ==========================================================================
   4. NAVIGATION & MOBILE MENU
   ========================================================================== */
.nav-container {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-glass);
}

.nav-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  height: 4rem;
}

/* Base state - mobile first */
.nav-links {
  display: none;
}

.auth-buttons {
  display: none;
}

/* Navigation Links */
.nav-link {
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 0.375rem;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.nav-link.active {
  background-color: var(--surface-glass-hover);
  border: 1px solid var(--border-glass);
}

/* Desktop Dropdown Styles */
.nav-item.nav-dropdown {
  position: relative;
  display: inline-block;
}

.nav-dropdown-toggle {
  cursor: pointer;
}

.dropdown-arrow {
  margin-left: 0.4em;
  font-size: 0.7em;
  transition: transform var(--transition-speed) ease;
  display: inline-block;
  vertical-align: middle;
}

.nav-dropdown-menu {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  min-width: 200px;
  padding: 0.5rem 0;
  background: #0D0C1D!important;
  backdrop-filter: blur(15px);
  border: 1px solid var(--border-glass);
  border-radius: 0.5rem;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(5px);
  pointer-events: none;
  transition: opacity var(--transition-speed) ease,
              visibility var(--transition-speed) ease,
              transform var(--transition-speed) ease;
}

.profile-menu.show {
    background: #0D0C1D!important;
}

.profile-icon, .submit-icon {
    
    padding: 10px!important;
}

.nav-item.nav-dropdown:hover > .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-item.nav-dropdown:hover > .nav-dropdown-toggle .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-item {
  display: block;
  padding: 0.6rem 1.2rem;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
  background-color: transparent;
  border: 0;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

.nav-dropdown-item:hover,
.nav-dropdown-item:focus,
.nav-dropdown-item.active {
  background-color: var(--surface-glass-hover);
  color: var(--text-primary);
  text-decoration: none;
}

/* Mobile Menu Button */
.mobile-menu-button {
  display: block;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 0.5rem;
  cursor: pointer;
  transition: opacity var(--transition-speed);
  z-index: 51;
}

.mobile-menu-button:hover {
  opacity: 0.8;
}

/* Mobile Menu Panel */
.mobile-menu {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  backdrop-filter: blur(12px);
  padding: 1rem 0;
  overflow-y: auto;
  transform: translateY(-100%);
  transition: transform var(--transition-speed) ease-out;
  z-index: 49;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  transform: translateY(0);
  display: block;
}

.mobile-menu .nav-link:not(.sub-link),
.mobile-menu .mobile-submenu-toggle {
  display: block;
  padding: 0.9rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-glass);
  text-decoration: none;
  font-size: 1rem;
  width: 100%;
  box-sizing: border-box;
  color: var(--text-primary);
}

.mobile-menu > *:not(.mobile-menu-section):not(.auth-buttons-mobile):last-of-type {
  border-bottom: none;
}

.mobile-menu .mobile-menu-section:last-of-type > .mobile-submenu-toggle {
  border-bottom: none;
}

/* Mobile Submenu Styles */
.mobile-submenu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-submenu-toggle .dropdown-arrow {
  transition: transform var(--transition-speed) ease;
  font-size: 0.9em;
}

.mobile-submenu-toggle[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

.mobile-submenu {
  background-color: rgba(0, 0, 0, 0.1);
  padding-left: 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease-out;
}

.mobile-submenu .sub-link {
  display: block;
  padding: 0.75rem 1.5rem 0.75rem 2.5rem;
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.mobile-submenu .sub-link:last-child {
  border-bottom: none;
}

.mobile-submenu .sub-link:hover,
.mobile-submenu .sub-link.active {
  background-color: var(--surface-glass);
  color: var(--text-primary);
}

.mobile-menu .auth-buttons-mobile {
  border-top: 1px solid var(--border-glass);
  padding-top: 1.5rem;
  margin-top: 1rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-bottom: 1rem;
}

.auth-buttons-mobile {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 0.75rem;
}

/* Logo Styling */
.nav-logo-link {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0.25rem 0;
  margin-right: 1rem;
}

.nav-logo-img {
  height: 32px;
  width: auto;
  max-height: calc(100% - 0.5rem);
  transition: height var(--transition-speed) ease;
  display: block;
}

/* ==========================================================================
   3. BANNER COMPONENT
   ========================================================================== */
.banner-container {
  width: 100%;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.banner-content {
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.banner-link {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-glass);
  text-align: center;
  font-size: 0.875rem;
  transition: opacity 0.3s ease;
}

.banner-link:hover {
  opacity: 0.9;
  color: var(--text-primary);
}

@media (max-width: 859px) {
  .nav-links,
  .auth-buttons {
    display: none;
  }
  
  .mobile-menu-button {
    display: block;
    margin-left: auto;
  }
  
  .nav-container {
    height: 4rem;
  }
  
  .mobile-menu {
    top: 3.5rem;
    max-height: calc(100vh - 3.5rem);
  }

  .nav-logo-img {
    height: 64px;
  }
  
  .nav-logo-link {
    margin-right: 0.5rem;
  }
}

@media (min-width: 860px) {
  .mobile-menu-button {
    display: none;
  }
  
  .mobile-menu {
    display: none !important;
  }
  
  .nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
    margin-right: auto;
  }
  
  .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }
  
  .auth-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: 1rem;
  }
  
  .nav-content {
    height: 4rem;
  }

  .nav-logo-img {
    height: 64px;
  }
  
  .nav-logo-link {
    margin-right: 1rem;
  }
}

@media (min-width: 1024px) {
  .nav-links {
    gap: 1rem;
  }
  
  .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
  }
  
  .auth-buttons {
    gap: 0.75rem;
  }
  
  .button {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
  }
}

@media (min-width: 1280px) {
  .nav-content, .footer-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
  
  .nav-links {
    gap: 1.5rem;
  }
}

/* ==========================================================================
   GENERAL BUTTON STYLES — used by the nav's logged-in icon buttons
   (.button.button-primary.submit-icon, .button.button-outline.profile-icon)
   ========================================================================== */
.button {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  text-decoration: none;
}

.button-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: 1px solid transparent;
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
  color: white;
}

.button-outline {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
}

.button-outline:hover {
  background: var(--surface-glass-hover);
  border-color: var(--border-glass-hover);
  color: var(--text-primary);
}

.button-secondary {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
}

.button-secondary:hover {
  background: var(--surface-glass-hover);
}