/**
 * Components CSS
 * Soft aesthetic, rounded tactile elements, icon slots, dialog modals, cards, and forms
 */

/* ==========================================================================
   Icon Slot System (Zero CSS-drawn shapes; placeholders for downloaded SVGs)
   ========================================================================== */
.icon-slot {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  transition: all var(--transition-fast);
}

.icon-slot.icon-sm {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
}

.icon-slot.icon-lg {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
}

.icon-slot img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  transition: transform var(--transition-fast), filter var(--transition-fast);
  opacity: 0.85;
}

.icon-slot.icon-sm img {
  width: 16px;
  height: 16px;
}

.icon-slot.icon-lg img {
  width: 28px;
  height: 28px;
}

/* ==========================================================================
   Dark Theme Icon Contrast & Brilliance
   ========================================================================== */
[data-theme="dark"] .icon-slot {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .icon-slot img {
  filter: brightness(0) invert(0.92);
  opacity: 0.95;
}

[data-theme="dark"] .icon-slot:hover img {
  filter: brightness(0) invert(1);
  opacity: 1;
}

/* Always White Icons inside Primary CTA Buttons */
.btn-primary .icon-slot img {
  filter: brightness(0) invert(1) !important;
  opacity: 1 !important;
}

/* Skill Pillar Header Theming in Dark Mode */
[data-theme="dark"] .skill-pillar-card:nth-child(1) .skill-pillar-header .icon-slot.icon-lg {
  background-color: var(--color-terracotta-soft);
  border-color: rgba(232, 122, 82, 0.35);
}
[data-theme="dark"] .skill-pillar-card:nth-child(1) .skill-pillar-header .icon-slot.icon-lg img {
  filter: brightness(0) saturate(100%) invert(67%) sepia(35%) saturate(1500%) hue-rotate(334deg) brightness(98%) contrast(92%);
}

[data-theme="dark"] .skill-pillar-card:nth-child(2) .skill-pillar-header .icon-slot.icon-lg {
  background-color: var(--color-sage-soft);
  border-color: rgba(82, 158, 131, 0.35);
}
[data-theme="dark"] .skill-pillar-card:nth-child(2) .skill-pillar-header .icon-slot.icon-lg img {
  filter: brightness(0) saturate(100%) invert(63%) sepia(21%) saturate(950%) hue-rotate(107deg) brightness(93%) contrast(88%);
}

[data-theme="dark"] .skill-pillar-card:nth-child(3) .skill-pillar-header .icon-slot.icon-lg {
  background-color: var(--color-amber-soft);
  border-color: rgba(226, 147, 60, 0.35);
}
[data-theme="dark"] .skill-pillar-card:nth-child(3) .skill-pillar-header .icon-slot.icon-lg img {
  filter: brightness(0) saturate(100%) invert(68%) sepia(50%) saturate(1200%) hue-rotate(352deg) brightness(95%) contrast(90%);
}

[data-theme="dark"] .skill-pillar-card:nth-child(4) .skill-pillar-header .icon-slot.icon-lg {
  background-color: var(--color-indigo-soft);
  border-color: rgba(107, 147, 208, 0.35);
}
[data-theme="dark"] .skill-pillar-card:nth-child(4) .skill-pillar-header .icon-slot.icon-lg img {
  filter: brightness(0) saturate(100%) invert(62%) sepia(35%) saturate(800%) hue-rotate(185deg) brightness(96%) contrast(92%);
}

[data-theme="dark"] .skill-item-row {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .skill-item-row:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

/* Fallback badge text if SVG not yet downloaded */
.icon-slot:has(img[style*="display: none"]),
.icon-slot.is-placeholder {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-terracotta);
  background-color: var(--color-terracotta-soft);
}

/* ==========================================================================
   Buttons & CTAs
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-terracotta);
  color: #FFFFFF;
  box-shadow: 0 4px 16px -2px var(--color-terracotta-soft);
}

.btn-primary:hover {
  background-color: var(--color-terracotta-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -4px var(--color-terracotta-soft);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

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

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding-top: clamp(6rem, 12vw, 9.5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  position: relative;
}

.hero-badge-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 1.5rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background-color: var(--color-success-soft);
  color: var(--color-success);
  font-size: var(--text-xs);
  font-weight: 600;
  border: 1px solid rgba(46, 133, 85, 0.2);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-success);
  position: relative;
}

.status-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background-color: var(--color-success);
  opacity: 0.4;
  animation: pulse-dot 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.6); opacity: 0; }
}

.hero-location-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  max-width: 960px;
}

.hero-highlight-warm {
  color: var(--color-terracotta);
  position: relative;
  display: inline-block;
}

.hero-highlight-sage {
  color: var(--color-sage);
}

.hero-bio {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 740px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0;
}

/* Quick Metrics / Bento Strip */
.hero-bento-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .hero-bento-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .hero-bento-strip {
    grid-template-columns: 1fr;
  }
}

.bento-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.bento-stat {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.bento-stat-highlight {
  color: var(--color-terracotta);
}

.bento-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Project Showcase
   ========================================================================== */
.project-filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  color: #FFFFFF;
  background-color: var(--color-terracotta);
  border-color: var(--color-terracotta);
  box-shadow: 0 4px 12px var(--color-terracotta-soft);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
}

@media (max-width: 860px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.project-category-badge {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
}

.project-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 0.5rem;
  letter-spacing: -0.02em;
}

.project-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 0.5rem;
}

/* Impact Metric Banner inside card */
.project-impact-box {
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--color-terracotta);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.project-impact-box.sage {
  border-left-color: var(--color-sage);
}

.project-impact-box.amber {
  border-left-color: var(--color-amber);
}

.project-impact-text {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tag {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.project-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  gap: 8px;
}

.project-footer-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-project-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.btn-project-github:hover {
  background-color: var(--color-terracotta-soft);
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
  transform: translateY(-2px);
}

.btn-project-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-terracotta);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.btn-project-cta:hover {
  background-color: var(--color-terracotta-soft);
}

/* ==========================================================================
   Case Study Dialog Modal
   ========================================================================== */
dialog#case-study-modal {
  margin: auto;
  padding: 0;
  border: none;
  border-radius: 24px;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-medium);
  max-width: 820px;
  width: 92%;
  max-height: 88vh;
  overflow: hidden;
}

dialog#case-study-modal::backdrop {
  background-color: rgba(15, 14, 12, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Modal Content Wrapper */
.modal-wrapper {
  display: flex;
  flex-direction: column;
  max-height: 88vh;
}

.modal-header {
  padding: 1.5rem 2rem;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.modal-header-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.modal-close-btn:hover {
  background-color: var(--border-medium);
  color: var(--text-primary);
  transform: scale(1.05);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.modal-section-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-section-indicator {
  width: 4px;
  height: 18px;
  border-radius: 4px;
  background-color: var(--color-terracotta);
}

.modal-section-indicator.sage {
  background-color: var(--color-sage);
}

.modal-section-indicator.amber {
  background-color: var(--color-amber);
}

/* Modal Metrics Grid */
.modal-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 680px) {
  .modal-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.modal-metric-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 4px;
  transition: all var(--transition-fast);
}

.modal-metric-card:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-hover);
}

.modal-metric-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-terracotta);
  line-height: 1.25;
  word-break: break-word;
}

.modal-metric-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* Terminal Architecture Window */
.terminal-window {
  background-color: #14161A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.terminal-header {
  background-color: #1D2026;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background-color: #EC5F58; }
.terminal-dot.yellow { background-color: #F5BC3E; }
.terminal-dot.green { background-color: #62C554; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #9299A6;
}

.terminal-content {
  padding: 16px 20px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.65;
  color: #E6E8ED;
  overflow-x: auto;
  white-space: pre;
}

/* Modal Impact Banner */
.modal-impact-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background-color: var(--color-terracotta-soft);
  border: 1px solid rgba(217, 101, 59, 0.2);
  color: var(--text-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: 1rem;
}

.modal-tradeoffs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 650px) {
  .modal-tradeoffs-grid {
    grid-template-columns: 1fr;
  }
}

.tradeoff-card {
  background-color: var(--bg-subtle);
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.tradeoff-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.tradeoff-desc {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Skills & Architecture Mastery
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 860px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

.skill-pillar-card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-pillar-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.skill-pillar-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.skill-items-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.skill-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
}

.skill-item-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.skill-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.skill-badge {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Engineering Timeline
   ========================================================================== */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  padding-left: 2rem;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background-color: var(--border-medium);
}

.timeline-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.timeline-card::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 1.5rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-terracotta);
  border: 3px solid var(--bg-canvas);
  transform: translateX(-50%);
}

.timeline-period {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.timeline-role {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.timeline-summary {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Contact Deck & Social Pills
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
}

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

.social-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.social-pill:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--color-terracotta);
  transform: translateX(4px);
}

.social-pill-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.social-handle {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Quick Copy Email Box */
.email-copy-box {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.email-address-text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

.btn-copy-email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-copy-email:hover {
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

/* Form Styles with Modern :user-valid and :user-invalid */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input:focus, .form-textarea:focus {
  background-color: var(--bg-surface);
  border-color: var(--color-terracotta);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-terracotta-soft);
}

/* Modern Validation from Web Guidance */
.form-input:user-invalid, .form-textarea:user-invalid {
  border-color: var(--color-error);
  background-color: var(--color-error-soft);
}

.form-input:user-valid, .form-textarea:user-valid {
  border-color: var(--color-success);
}

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

.form-error-msg {
  display: none;
  font-size: 0.8rem;
  color: var(--color-error);
  font-weight: 500;
}

.form-input:user-invalid + .form-error-msg,
.form-textarea:user-invalid + .form-error-msg {
  display: block;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--text-primary);
  color: var(--bg-canvas);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--transition-normal);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding-block: 3.5rem;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-credits {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-terracotta);
}