/* ==========================================================================
   TALHA PIRCİ - ARCHITECTURAL PORTFOLIO & LANDING PAGE
   Design System & Styling
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700&family=JetBrains+Mono:wght@300;400;500&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Syne:wght@600;700;800&display=swap');

:root {
  /* Color Palette - Architectural Dark (Default) */
  --bg-primary: #0a0c0e;
  --bg-secondary: #111418;
  --bg-surface: #181d22;
  --bg-surface-elevated: #21262d;
  --bg-glass: rgba(17, 20, 24, 0.85);

  --text-primary: #f0f3f6;
  --text-secondary: #9da7b3;
  --text-muted: #5f6b7a;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --border-focus: #cda376;

  /* Architectural Warm Material Accents */
  --accent-timber: #cda376;
  --accent-timber-light: #e6c8a5;
  --accent-timber-dark: #9c7349;
  --accent-terracotta: #d96b43;
  --accent-concrete: #8a949e;
  --accent-glow: rgba(205, 163, 118, 0.18);

  /* Geometry & Metrics */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 9999px;

  --font-heading: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Cinzel', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 0.18s cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  --container-max: 1320px;
  --nav-height: 76px;
  --grid-line-color: rgba(255, 255, 255, 0.028);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8f6f2;
  --bg-secondary: #f0ede6;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-glass: rgba(248, 246, 242, 0.92);

  --text-primary: #191c1f;
  --text-secondary: #57606a;
  --text-muted: #8c959f;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.18);
  --border-focus: #a5784b;

  --accent-timber: #a5784b;
  --accent-timber-light: #cda376;
  --accent-timber-dark: #78522e;
  --accent-terracotta: #b84e28;
  --accent-concrete: #606870;
  --accent-glow: rgba(165, 120, 75, 0.15);

  --grid-line-color: rgba(0, 0, 0, 0.035);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  background-image: 
    linear-gradient(var(--grid-line-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-color) 1px, transparent 1px);
  background-size: 50px 50px;
  position: relative;
}

/* Architectural Ambient Grid Cursor Spotlight */
.cursor-ambient-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0.6;
  transition: opacity var(--transition-normal);
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 4vw, 3rem);
  padding-right: clamp(1.25rem, 4vw, 3rem);
  position: relative;
  z-index: 1;
}

.section {
  padding-top: clamp(4.5rem, 9vw, 8.5rem);
  padding-bottom: clamp(4.5rem, 9vw, 8.5rem);
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

/* Typography Elements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

/* Section Header Component */
.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.section-index {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-timber);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.section-index::after {
  content: "";
  display: inline-block;
  width: 40px;
  height: 1px;
  background-color: var(--accent-timber);
  opacity: 0.6;
}

.section-title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 700;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  max-width: 680px;
  line-height: 1.6;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: transform var(--transition-fast), background-color var(--transition-normal);
}

.nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-timber);
  position: relative;
  border-radius: var(--radius-xs);
}

.brand-mark::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--accent-timber);
  border-left: 1px solid var(--accent-timber);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-timber);
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.icon-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--accent-timber);
  border-color: var(--border-strong);
}

.btn-lang {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0 0.65rem;
  height: 38px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-lang:hover {
  color: var(--accent-timber);
  border-color: var(--border-strong);
}

.mobile-menu-toggle {
  display: none;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--accent-timber);
  color: #0a0c0e;
  border-color: var(--accent-timber);
}

.btn-primary:hover {
  background-color: var(--accent-timber-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

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

.btn-outline:hover {
  border-color: var(--accent-timber);
  color: var(--accent-timber);
  background-color: var(--accent-glow);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.tag-badge.accent {
  background: var(--accent-glow);
  border-color: rgba(205, 163, 118, 0.4);
  color: var(--accent-timber);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.coordinate-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-timber);
  background: var(--bg-surface);
  padding: 0.3rem 0.65rem;
  border-left: 2px solid var(--accent-timber);
}

.institution-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.institution-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.hero-headline {
  font-size: clamp(2.5rem, 5.2vw, 4.25rem);
  line-height: 1.05;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-headline span.highlight {
  color: var(--accent-timber);
  display: inline-block;
  position: relative;
}

.hero-desc {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.25rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero Media Showcase */
.hero-media-wrap {
  position: relative;
}

.hero-card-frame {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xs);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.hero-image {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  filter: contrast(1.03) saturate(1.05);
  transition: transform var(--transition-smooth);
}

.hero-card-frame:hover .hero-image {
  transform: scale(1.03);
}

.hero-floating-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.2rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.badge-caption-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.badge-caption-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-timber);
}

.corner-marker {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--accent-timber);
  pointer-events: none;
  z-index: 2;
}

.corner-tl { top: -6px; left: -6px; border-top: 2px solid; border-left: 2px solid; }
.corner-tr { top: -6px; right: -6px; border-top: 2px solid; border-right: 2px solid; }
.corner-bl { bottom: -6px; left: -6px; border-bottom: 2px solid; border-left: 2px solid; }
.corner-br { bottom: -6px; right: -6px; border-bottom: 2px solid; border-right: 2px solid; }

/* ==========================================================================
   ABOUT / ARCHITECTURAL PHILOSOPHY SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.about-portrait-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  padding: 1rem;
  border-radius: var(--radius-xs);
}

.portrait-img-box {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xs);
}

.portrait-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
}

.portrait-overlay-specs {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(10, 12, 14, 0.75);
  backdrop-filter: blur(8px);
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-primary);
  text-transform: uppercase;
}

.about-text-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.lead-paragraph {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--text-primary);
  font-weight: 500;
}

.lead-paragraph strong {
  color: var(--accent-timber);
}

.philosophy-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.phil-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.35rem;
  border-radius: var(--radius-xs);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.phil-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-timber);
}

.phil-card-icon {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-timber);
  margin-bottom: 0.65rem;
  display: block;
}

.phil-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
}

.phil-card p {
  font-size: 0.875rem;
  line-height: 1.55;
}

/* ==========================================================================
   PORTFOLIO / SELECTED WORKS
   ========================================================================== */
.portfolio-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 2.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.filter-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--accent-timber);
}

.filter-btn.active {
  background: var(--accent-glow);
  color: var(--accent-timber);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 2rem;
}

.work-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}

.work-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.work-thumb-wrap {
  position: relative;
  height: 270px;
  overflow: hidden;
  background: #000;
}

.work-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.work-card:hover .work-thumb {
  transform: scale(1.05);
}

.work-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(10, 12, 14, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-timber);
  border-radius: var(--radius-xs);
  text-transform: uppercase;
}

.work-year-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(10, 12, 14, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xs);
}

.work-body {
  padding: 1.65rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.work-title {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
  transition: color var(--transition-fast);
}

.work-card:hover .work-title {
  color: var(--accent-timber);
}

.work-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.work-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.work-location {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.work-action-hint {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--accent-timber);
  font-weight: 500;
}

/* ==========================================================================
   DESIGN & BUILD / 1:1 SCALE FOCUS FEATURE
   ========================================================================== */
.feature-showcase-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xs);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  position: relative;
  margin-top: 2rem;
}

.feature-media-side {
  position: relative;
  min-height: 480px;
}

.feature-main-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.feature-content-side {
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
}

.feature-tag-top {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.feature-title {
  font-size: clamp(1.85rem, 3vw, 2.35rem);
  line-height: 1.2;
}

.feature-narrative {
  font-size: 0.975rem;
  line-height: 1.7;
}

.feature-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.5rem 0;
}

.feature-bullet-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.bullet-dot {
  color: var(--accent-timber);
  font-family: var(--font-mono);
}

/* ==========================================================================
   AWARDS & RECOGNITION TIMELINE
   ========================================================================== */
.timeline-container {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
}

.timeline-container::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 1px;
  background: var(--border-strong);
}

.timeline-item {
  position: relative;
  padding-left: 68px;
  padding-bottom: 3.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-node {
  position: absolute;
  left: 17px;
  top: 4px;
  width: 15px;
  height: 15px;
  background: var(--bg-primary);
  border: 2px solid var(--accent-timber);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 0 4px var(--bg-primary);
}

.timeline-item.award .timeline-node {
  background: var(--accent-timber);
  box-shadow: 0 0 12px var(--accent-timber);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-timber);
  margin-bottom: 0.4rem;
  display: block;
}

.timeline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
  border-radius: var(--radius-xs);
  transition: border-color var(--transition-fast);
}

.timeline-card:hover {
  border-color: var(--border-strong);
}

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

.timeline-card-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.award-badge {
  background: var(--accent-glow);
  color: var(--accent-timber);
  border: 1px solid rgba(205, 163, 118, 0.4);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-xs);
  white-space: nowrap;
}

.timeline-desc {
  font-size: 0.925rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* ==========================================================================
   SKILLS & METHODOLOGY (ARCHITECTURAL TOOLKIT)
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.skill-category-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  border-radius: var(--radius-xs);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-cat-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--accent-timber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-timber);
}

.skill-cat-title {
  font-size: 1.15rem;
}

.skill-items-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-bar-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.skill-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  font-family: var(--font-body);
}

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

.skill-bar-track {
  height: 4px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: var(--accent-timber);
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 5vw, 5rem);
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-card-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  transition: border-color var(--transition-fast);
}

.contact-card-item:hover {
  border-color: var(--border-strong);
}

.contact-icon-box {
  width: 42px;
  height: 42px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-timber);
  flex-shrink: 0;
}

.contact-card-content h5 {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.contact-card-content p,
.contact-card-content a {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-radius: var(--radius-xs);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.85rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  background: var(--bg-surface);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: 4rem 0 2.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand h4 {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

.footer-brand p {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--text-muted);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   PROJECT MODAL (DETAILED ARCHITECTURAL CASE STUDY)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 7, 9, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2.5rem);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xs);
  width: 100%;
  max-width: 980px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6);
  position: relative;
  transform: translateY(24px) scale(0.98);
  transition: transform var(--transition-normal);
}

.modal-backdrop.open .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: sticky;
  top: 1.25rem;
  right: 1.25rem;
  float: right;
  z-index: 10;
  background: rgba(10, 12, 14, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: -40px;
}

.modal-close-btn:hover {
  background: var(--accent-terracotta);
  color: #fff;
}

.modal-hero-cover {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.modal-body {
  padding: clamp(1.75rem, 4vw, 3rem);
}

.modal-header-block {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-category-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-timber);
  margin-bottom: 0.5rem;
}

.modal-title {
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.modal-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 1.25rem;
  border-radius: var(--radius-xs);
  margin-bottom: 2rem;
}

.modal-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.modal-meta-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.modal-meta-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-narrative {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.modal-narrative h4 {
  font-size: 1.25rem;
  margin-top: 1rem;
  color: var(--accent-timber);
}

.modal-gallery-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.modal-gallery-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast-msg {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--accent-timber);
  color: var(--text-primary);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  z-index: 3000;
}

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

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-portrait-card {
    max-width: 520px;
    margin: 0 auto;
  }

  .feature-showcase-box {
    grid-template-columns: 1fr;
  }

  .feature-media-side {
    min-height: 340px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .modal-meta-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .philosophy-cards {
    grid-template-columns: 1fr;
  }

  .works-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .modal-gallery-strip {
    grid-template-columns: 1fr;
  }

  .mobile-menu-drawer {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-strong);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
    z-index: 999;
  }

  .mobile-menu-drawer.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}