/* ══════════════════════════════════════════
   Daryna Rudenko — Portfolio Styles
   ══════════════════════════════════════════ */

/* ─── CUSTOM PROPERTIES ─── */
:root {
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.205 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.97 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.577 0.245 27.325);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.708 0 0);
  --chart-1: oklch(0.646 0.222 41.116);
  --chart-2: oklch(0.6 0.118 184.704);
  --chart-3: oklch(0.398 0.07 227.392);
  --chart-4: oklch(0.828 0.189 84.429);
  --chart-5: oklch(0.769 0.188 70.08);
  --radius: 0.625rem;
  --sidebar: oklch(0.985 0 0);
  --sidebar-foreground: oklch(0.145 0 0);
  --sidebar-primary: oklch(0.205 0 0);
  --sidebar-primary-foreground: oklch(0.985 0 0);
  --sidebar-accent: oklch(0.97 0 0);
  --sidebar-accent-foreground: oklch(0.205 0 0);
  --sidebar-border: oklch(0.922 0 0);
  --sidebar-ring: oklch(0.708 0 0);

  --accent-teal: oklch(0.78 0.14 175);
  --accent-violet: oklch(0.62 0.21 301);
  --accent-glow: color-mix(in oklab, var(--accent-teal) 18%, transparent);
  --glass-blur: 18px;
  --radius-sm: calc(var(--radius) - 4px);
  --radius-xs: calc(var(--radius) - 6px);
  --nav-height: 64px;
  --font-serif: "Cormorant Garamond", "Iowan Old Style", "Palatino Linotype", serif;
  --font-sans: "Plus Jakarta Sans", "Avenir Next", "Segoe UI", sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --bg-primary: var(--background);
  --bg-secondary: color-mix(in oklab, var(--background) 90%, var(--foreground));
  --bg-card: color-mix(in oklab, var(--card) 88%, var(--foreground) 12%);
  --bg-card-hover: color-mix(in oklab, var(--card) 82%, var(--foreground) 18%);
  --border-card: color-mix(in oklab, var(--border) 60%, var(--accent-violet) 40%);
  --border-card-hover: color-mix(in oklab, var(--border) 35%, var(--accent-violet) 65%);
  --text-primary: var(--foreground);
  --text-secondary: var(--muted-foreground);
  --text-muted: color-mix(in oklab, var(--muted-foreground) 78%, var(--background));
}

[data-theme="dark"] {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.145 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.145 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.985 0 0);
  --primary-foreground: oklch(0.205 0 0);
  --secondary: oklch(0.269 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.396 0.141 25.723);
  --destructive-foreground: oklch(0.637 0.237 25.331);
  --border: oklch(0.269 0 0);
  --input: oklch(0.269 0 0);
  --ring: oklch(0.439 0 0);
  --chart-1: oklch(0.488 0.243 264.376);
  --chart-2: oklch(0.696 0.17 162.48);
  --chart-3: oklch(0.769 0.188 70.08);
  --chart-4: oklch(0.627 0.265 303.9);
  --chart-5: oklch(0.645 0.246 16.439);
  --sidebar: oklch(0.205 0 0);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.488 0.243 264.376);
  --sidebar-primary-foreground: oklch(0.985 0 0);
  --sidebar-accent: oklch(0.269 0 0);
  --sidebar-accent-foreground: oklch(0.985 0 0);
  --sidebar-border: oklch(0.269 0 0);
  --sidebar-ring: oklch(0.439 0 0);

  --bg-primary: var(--background);
  --bg-secondary: color-mix(in oklab, var(--background) 90%, var(--accent-violet));
  --bg-card: color-mix(in oklab, var(--background) 76%, var(--accent-violet) 24%);
  --bg-card-hover: color-mix(in oklab, var(--background) 70%, var(--accent-violet) 30%);
  --border-card: color-mix(in oklab, var(--border) 62%, var(--accent-violet) 38%);
  --border-card-hover: color-mix(in oklab, var(--border) 28%, var(--accent-violet) 72%);
  --text-primary: var(--foreground);
  --text-secondary: var(--muted-foreground);
  --text-muted: color-mix(in oklab, var(--muted-foreground) 72%, var(--background));
}

[data-theme="light"] {
  --bg-primary: var(--background);
  --bg-secondary: color-mix(in oklab, var(--background) 92%, var(--foreground));
  --bg-card: color-mix(in oklab, var(--card) 88%, var(--foreground) 12%);
  --bg-card-hover: color-mix(in oklab, var(--card) 80%, var(--foreground) 20%);
  --border-card: color-mix(in oklab, var(--border) 58%, var(--accent-violet) 42%);
  --border-card-hover: color-mix(in oklab, var(--border) 34%, var(--accent-violet) 66%);
  --text-primary: var(--foreground);
  --text-secondary: var(--muted-foreground);
  --text-muted: color-mix(in oklab, var(--muted-foreground) 78%, var(--background));
}

/* ─── RESET ─── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul { list-style: none; }

:focus-visible {
  outline: 2px solid var(--accent-teal);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ─── CANVAS BG ─── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

[data-theme="light"] #bg-canvas {
  opacity: 0.24;
}

/* ─── TOP NAV ─── */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: color-mix(in oklab, var(--bg-primary) 75%, transparent);
  border-bottom: 1px solid var(--border-card);
  transition: background var(--transition), border-color var(--transition);
}

[data-theme="light"] .top-nav {
  background: color-mix(in oklab, var(--bg-primary) 82%, transparent);
}

.top-nav.scrolled {
  background: color-mix(in oklab, var(--bg-primary) 92%, transparent);
  border-bottom-color: var(--border-card-hover);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.accent-dot { color: var(--accent-teal); }

.nav-links {
  display: flex;
  gap: 6px;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(139, 92, 246, 0.1);
}

.nav-link.active {
  color: var(--accent-teal);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cmd-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.78rem;
  transition: border-color var(--transition), color var(--transition);
}

.cmd-hint:hover {
  border-color: var(--accent-teal);
  color: var(--text-secondary);
}

.cmd-hint-text {
  display: flex;
  gap: 3px;
}

.cmd-hint kbd,
.command-keys kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 5px;
  border-radius: 4px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid var(--border-card);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--text-secondary);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 24px;
  background: color-mix(in oklab, var(--bg-primary) 95%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-card);
}

[data-theme="light"] .mobile-nav {
  background: color-mix(in oklab, var(--bg-primary) 96%, transparent);
}

.mobile-nav.open { display: flex; }

.mobile-nav-link {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
}

.mobile-nav-link:hover { color: var(--text-primary); background: rgba(139, 92, 246, 0.1); }
.mobile-nav-link.active { color: var(--accent-teal); background: rgba(139, 92, 246, 0.1); }

/* ─── MINI-MAP ─── */
.mini-map {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.mini-map-dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  background: transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.mini-map-dot.active {
  background: var(--accent-teal);
  border-color: var(--accent-teal);
  box-shadow: 0 0 10px rgba(0, 212, 170, 0.4);
}

.mini-map-label {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-card);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mini-map-dot:hover .mini-map-label { opacity: 1; }

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 60px;
  z-index: 1;
}

.hero-inner {
  max-width: 720px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
}

.hero-identity {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.status-widget {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-teal);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(0, 212, 170, 0); }
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-violet) 50%, var(--accent-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-focus-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.focus-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  background: var(--bg-card);
}

.focus-chip.open-to {
  border-color: rgba(0, 212, 170, 0.3);
  color: var(--accent-teal);
}

/* Command Trigger */
.command-palette-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 480px;
  padding: 14px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.command-palette-trigger:hover {
  border-color: var(--accent-violet);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.1);
}

.command-icon { color: var(--text-muted); display: flex; }
.command-text { flex: 1; text-align: left; color: var(--text-muted); font-size: 0.9rem; }
.command-keys { display: flex; gap: 4px; }

/* Scroll cue */
.hero-scroll-cue {
  position: absolute;
  bottom: 32px;
  color: var(--text-muted);
  animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ─── SECTIONS ─── */
.section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
}

.section-inner {
  max-width: 900px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 40px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.section-num {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-teal);
  letter-spacing: 0.05em;
}

/* ─── GLASS CARD ─── */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.glass-card:hover {
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
}

/* ─── ABOUT ─── */
.about-text {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.about-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.about-chip {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--border-card);
  color: var(--accent-teal);
  background: var(--accent-glow);
}

/* ─── SKILLS ─── */
.skills-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 7px 18px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  background: var(--bg-card);
  transition: all var(--transition);
}

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

.filter-btn.active {
  background: var(--accent-violet);
  border-color: var(--accent-violet);
  color: #fff;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: default;
  transition: all var(--transition);
}

.skill-chip:hover {
  border-color: var(--accent-teal);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 212, 170, 0.1);
}

.skill-chip.hidden {
  opacity: 0;
  transform: scale(0.85);
  pointer-events: none;
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  padding: 0;
  margin: 0;
  border: 0;
}

.skill-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  white-space: nowrap;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  background: var(--accent-violet);
  color: #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 10;
}

.skill-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--accent-violet);
}

.skill-chip:hover .skill-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.skills-grid.single-category .skill-tooltip {
  display: none;
}

.skills-grid.single-category .skill-chip:hover {
  border-color: var(--accent-teal);
  transform: none;
  box-shadow: none;
}

/* ─── TIMELINE ─── */
.timeline {
  position: relative;
  padding-left: 36px;
}

.timeline-track {
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-card);
  border-radius: 2px;
}

.timeline-fill {
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-violet));
  border-radius: 2px;
  transition: height 0.1s linear;
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

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

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 3px solid var(--accent-teal);
  background: var(--bg-primary);
  z-index: 2;
  transition: background var(--transition), box-shadow var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-teal);
  box-shadow: 0 0 12px rgba(0, 212, 170, 0.4);
}

.timeline-item.active .timeline-dot {
  background: var(--accent-teal);
  box-shadow: 0 0 12px rgba(0, 212, 170, 0.4);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  text-align: left;
  transition: border-color var(--transition), background var(--transition);
}

.timeline-header:hover {
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
}

.timeline-header[aria-expanded="true"] {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: var(--accent-teal);
}

.timeline-meta { display: flex; flex-direction: column; gap: 4px; }

.timeline-date {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent-teal);
  letter-spacing: 0.02em;
}

.timeline-role {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-company {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.timeline-toggle {
  color: var(--text-muted);
  transition: transform var(--transition);
  display: flex;
  align-items: center;
  margin-top: 4px;
}

.timeline-header[aria-expanded="true"] .timeline-toggle {
  transform: rotate(180deg);
  color: var(--accent-teal);
}

.timeline-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  background: var(--bg-card);
}

.timeline-content.open {
  border-color: var(--accent-teal);
  max-height: 500px;
}

.timeline-list {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
}

/* ─── EDUCATION ─── */
.edu-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.edu-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.edu-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-glow);
  color: var(--accent-teal);
}

.edu-details { display: flex; flex-direction: column; gap: 4px; }

.edu-school {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
}

.edu-degree {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.edu-date {
  font-size: 0.82rem;
  color: var(--accent-teal);
  font-weight: 500;
}

/* ─── CERTIFICATES ─── */
.cert-grid {
  display: grid;
  gap: 16px;
}

.cert-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr);
  align-items: stretch;
  gap: 18px;
  padding: 0;
  border-color: color-mix(in oklab, var(--border-card) 72%, var(--accent-teal));
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.cert-stripe {
  align-self: stretch;
  background: linear-gradient(180deg, currentColor 0%, color-mix(in oklab, currentColor 58%, transparent) 100%);
}

.cert-shell {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.cert-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-right: 18px;
}

.cert-main {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 0 20px 2px;
}

.cert-type {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  font-weight: 600;
}

.cert-title {
  font-family: var(--font-serif);
  font-size: 1.32rem;
  line-height: 1.2;
  color: var(--text-primary);
}

.cert-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.cert-meta-item {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.cert-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  flex-shrink: 0;
  white-space: nowrap;
  padding: 10px 18px;
  border-radius: var(--radius-xs);
  border: 1px solid color-mix(in oklab, currentColor 52%, var(--border-card));
  color: currentColor;
  font-weight: 500;
  font-size: 0.88rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.cert-link:hover {
  background: color-mix(in oklab, currentColor 22%, transparent);
  color: currentColor;
  border-color: currentColor;
  transform: translateY(-1px);
  box-shadow:
    0 0 0 1px color-mix(in oklab, currentColor 60%, transparent),
    0 0 18px color-mix(in oklab, currentColor 38%, transparent);
}

.cert-toggle[aria-expanded='true'] {
  background: color-mix(in oklab, currentColor 24%, transparent);
  border-color: currentColor;
  color: currentColor;
  box-shadow:
    0 0 0 1px color-mix(in oklab, currentColor 60%, transparent),
    0 0 20px color-mix(in oklab, currentColor 42%, transparent);
}

.cert-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  border-top: 1px solid transparent;
  transition:
    max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.3s ease,
    opacity 0.25s ease;
}

.cert-content.open {
  opacity: 1;
  border-top-color: color-mix(in oklab, currentColor 56%, var(--border-card));
}

.cert-content-inner {
  padding: 16px 18px 18px 2px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px 20px;
}

.cert-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  min-width: 0;
}

.cert-points li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.cert-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.56em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.cert-open-file {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  border: 1px solid color-mix(in oklab, currentColor 58%, var(--border-card));
  color: currentColor;
  font-size: 0.82rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.cert-open-file:hover {
  background: color-mix(in oklab, currentColor 22%, transparent);
  color: currentColor;
  border-color: currentColor;
  box-shadow:
    0 0 0 1px color-mix(in oklab, currentColor 58%, transparent),
    0 0 16px color-mix(in oklab, currentColor 35%, transparent);
}

.cert-preview:hover {
  border-color: color-mix(in oklab, currentColor 72%, var(--border-card));
  box-shadow: 0 0 22px color-mix(in oklab, currentColor 25%, transparent);
}

.cert-preview {
  grid-column: 1 / -1;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in oklab, currentColor 52%, var(--border-card));
  overflow: hidden;
  background: color-mix(in oklab, var(--bg-secondary) 88%, transparent);
}

.cert-preview img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.cert-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(460px 140px at -8% 50%, color-mix(in oklab, currentColor 18%, transparent) 0%, transparent 74%),
    linear-gradient(115deg, transparent 35%, color-mix(in oklab, currentColor 18%, transparent) 50%, transparent 66%);
  transform: translateX(-42%);
  opacity: 0.32;
  pointer-events: none;
  transition: transform 1.05s cubic-bezier(0.2, 0.8, 0.2, 1), opacity var(--transition);
}

.cert-card:hover .cert-glow {
  transform: translateX(0);
  opacity: 0.68;
}

.cert-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, currentColor 66%, var(--border-card));
  box-shadow:
    0 14px 34px color-mix(in oklab, currentColor 24%, transparent),
    0 0 0 1px color-mix(in oklab, currentColor 56%, transparent),
    0 0 26px color-mix(in oklab, currentColor 34%, transparent);
}

.cert-card-primary { color: oklch(0.68 0.14 236); }
.cert-card-emerald { color: oklch(0.69 0.16 160); }
.cert-card-teal { color: oklch(0.74 0.16 187); }

.cert-reveal {
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  transition:
    opacity 0.45s ease,
    transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
  transition-delay: var(--delay, 0s);
}

.reveal.visible .cert-reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ─── LANGUAGES ─── */
.languages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.lang-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.lang-card {
  display: flex;
  flex-direction: column;
}

.lang-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
}

.lang-tag {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
}

.lang-tag.native {
  background: var(--accent-glow);
  color: var(--accent-teal);
}

.lang-skills-row {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
}

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

.lang-bar-track {
  height: 4px;
  border-radius: 4px;
  background: var(--border-card);
  overflow: hidden;
  margin-top: auto;
}

.lang-bar {
  height: 100%;
  width: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-teal), var(--accent-violet));
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-bar.animate {
  width: var(--bar-width);
}

/* ─── ADDITIONAL ─── */
.additional-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.additional-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.additional-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(139, 92, 246, 0.12);
  color: var(--accent-violet);
}

.additional-label {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
}

.conferences-card::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(480px 180px at -10% -10%, rgba(56, 189, 248, 0.2), transparent 68%),
    radial-gradient(420px 160px at 120% 120%, rgba(45, 212, 191, 0.14), transparent 72%);
  opacity: 0.8;
}

.conferences-intro {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 760px;
}

.conference-list {
  display: grid;
  gap: 16px;
}

.conference-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in oklab, var(--event-color) 52%, var(--border-card));
  background: color-mix(in oklab, var(--bg-card) 90%, transparent);
  display: block;
  animation: conferenceIn 0.45s ease both;
  animation-delay: var(--event-delay, 0s);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.conference-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--event-color), color-mix(in oklab, var(--event-color) 58%, transparent));
}

.conference-item::after {
  display: none;
}

.conference-item:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--event-color) 75%, var(--border-card));
  box-shadow:
    0 10px 28px color-mix(in oklab, var(--event-color) 20%, transparent),
    0 0 0 1px color-mix(in oklab, var(--event-color) 48%, transparent);
}

.conference-item.open {
  border-color: color-mix(in oklab, var(--event-color) 78%, var(--border-card));
  box-shadow:
    0 14px 28px color-mix(in oklab, var(--event-color) 20%, transparent),
    0 0 0 1px color-mix(in oklab, var(--event-color) 56%, transparent);
}

.conference-toggle {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
  padding: 14px 16px;
  display: grid;
  gap: 8px;
}

.conference-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.conference-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--event-color) 52%, var(--border-card));
  color: var(--event-color);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  background: color-mix(in oklab, var(--event-color) 14%, transparent);
}

.conference-meta {
  font-size: 0.78rem;
  color: var(--accent-teal);
  text-shadow: 0 0 10px color-mix(in oklab, var(--accent-teal) 35%, transparent);
}

.conference-name {
  font-family: var(--font-serif);
  font-size: 1.07rem;
  line-height: 1.2;
  color: var(--text-primary);
}

.conference-notes {
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 950px;
}

.conference-caret {
  justify-self: end;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--event-color);
  border-bottom: 2px solid var(--event-color);
  transform: rotate(45deg);
  transition: transform var(--transition), filter var(--transition);
  filter: drop-shadow(0 0 8px color-mix(in oklab, var(--event-color) 30%, transparent));
}

.conference-toggle[aria-expanded='true'] .conference-caret {
  transform: rotate(-135deg);
}

.conference-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  border-top: 1px solid transparent;
  transition:
    max-height 0.48s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.3s ease,
    border-color 0.3s ease;
}

.conference-content.open {
  opacity: 1;
  border-top-color: color-mix(in oklab, var(--event-color) 54%, var(--border-card));
}

.conference-content-inner {
  padding: 12px 16px 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  justify-items: center;
  align-items: start;
}

.conference-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 2px;
}

.conference-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  border: 1px solid color-mix(in oklab, var(--event-color) 52%, var(--border-card));
  color: var(--event-color);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition), color var(--transition);
}

.conference-link:hover {
  background: color-mix(in oklab, var(--event-color) 20%, transparent);
  border-color: var(--event-color);
  color: var(--event-color);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--event-color) 58%, transparent),
    0 0 18px color-mix(in oklab, var(--event-color) 30%, transparent);
}

.conference-slider {
  width: min(100%, 860px);
  margin-inline: auto;
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  grid-template-rows: auto auto;
  gap: 10px 14px;
  align-items: center;
}

.conference-slider::before {
  content: '';
  position: absolute;
  left: 8%;
  right: 8%;
  top: 14%;
  bottom: 14%;
  border-radius: 26px;
  background:
    radial-gradient(
      62% 62% at 50% 50%,
      color-mix(in oklab, var(--event-color) 38%, transparent) 0%,
      color-mix(in oklab, var(--event-color) 16%, transparent) 48%,
      transparent 100%
    );
  filter: blur(34px) saturate(115%);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.35s ease;
}

.conference-item.open .conference-slider::before {
  opacity: 0.98;
}

.conference-slider > * {
  position: relative;
  z-index: 1;
}

.conference-slider-viewport {
  grid-column: 2;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--event-color) 54%, var(--border-card));
  overflow: hidden;
  background: color-mix(in oklab, var(--bg-secondary) 82%, transparent);
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.34),
    0 0 12px color-mix(in oklab, var(--event-color) 24%, transparent);
}

.conference-slider-track {
  display: flex;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.conference-slide {
  flex: 0 0 100%;
  aspect-ratio: 16 / 10;
}

.conference-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #0f0f15;
}

.conference-slider-btn {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--event-color) 58%, var(--border-card));
  background: color-mix(in oklab, var(--bg-card) 88%, transparent);
  color: var(--event-color);
  font-size: 1.25rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.conference-slider-btn:hover {
  background: color-mix(in oklab, var(--event-color) 20%, transparent);
  border-color: var(--event-color);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--event-color) 58%, transparent),
    0 0 16px color-mix(in oklab, var(--event-color) 32%, transparent);
  transform: translateY(-1px);
}

.conference-slider-btn:disabled {
  opacity: 0.45;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.conference-slider-dots {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  gap: 6px;
  min-height: 10px;
}

.conference-slider-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  border: 0;
  background: color-mix(in oklab, var(--event-color) 40%, var(--border-card));
  opacity: 0.6;
  padding: 0;
}

.conference-slider-dot.active {
  opacity: 1;
  box-shadow: 0 0 10px color-mix(in oklab, var(--event-color) 55%, transparent);
}

@keyframes conferenceIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ─── CONTACT ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 16px;
}

.contact-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
  min-height: 150px;
  border-color: color-mix(in oklab, var(--border-card) 76%, var(--accent-violet));
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(360px 150px at -10% -10%, rgba(56, 189, 248, 0.2), transparent 70%),
    radial-gradient(300px 140px at 110% 110%, rgba(45, 212, 191, 0.14), transparent 72%);
  opacity: 0.8;
}

.contact-card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    110deg,
    transparent 25%,
    rgba(139, 92, 246, 0.14) 48%,
    transparent 68%
  );
  transform: translateX(-45%);
  opacity: 0;
  transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), opacity var(--transition);
}

.contact-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent-teal) 46%, var(--border-card));
  box-shadow:
    0 14px 34px color-mix(in oklab, var(--accent-teal) 16%, transparent),
    0 0 0 1px color-mix(in oklab, var(--accent-violet) 38%, transparent);
}

.contact-card:hover::after {
  transform: translateX(0);
  opacity: 1;
}

.contact-grid-creative .contact-main-card {
  grid-row: span 2;
  min-height: 320px;
  justify-content: space-between;
}

.contact-main-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.contact-pill {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent-teal) 52%, var(--border-card));
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-teal);
  background: color-mix(in oklab, var(--accent-teal) 14%, transparent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.contact-icon {
  position: relative;
  z-index: 1;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-glow);
  color: var(--accent-teal);
}

.contact-label {
  position: relative;
  z-index: 1;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-value {
  position: relative;
  z-index: 1;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-value-hero {
  font-size: clamp(1.02rem, 1.8vw, 1.34rem);
  line-height: 1.2;
}

.contact-note {
  position: relative;
  z-index: 1;
  max-width: 34ch;
  color: var(--text-secondary);
  font-size: 0.84rem;
  line-height: 1.6;
}

.contact-main-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.contact-main-actions-cv {
  margin-top: 2px;
}

.contact-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  border: 1px solid color-mix(in oklab, var(--accent-teal) 58%, var(--border-card));
  color: var(--accent-teal);
  text-decoration: none;
  font-size: 0.76rem;
  font-weight: 600;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), color var(--transition);
}

.contact-cta-btn:hover {
  background: color-mix(in oklab, var(--accent-teal) 18%, transparent);
  border-color: var(--accent-teal);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent-teal) 54%, transparent),
    0 0 16px color-mix(in oklab, var(--accent-teal) 30%, transparent);
}

.contact-side-card {
  justify-content: center;
  min-height: 156px;
}

.contact-footer-card {
  grid-column: 1 / -1;
  min-height: 280px;
  display: grid;
  grid-template-columns: minmax(210px, 0.42fr) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  cursor: default;
}

.contact-footer-card::before,
.contact-footer-card::after {
  display: none;
}

.contact-footer-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-start;
  max-width: 420px;
}

.contact-map-wrap {
  position: relative;
  width: min(100%, 780px);
  min-height: 236px;
  margin-inline: auto;
  justify-self: center;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--accent-violet) 44%, var(--border-card));
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  box-shadow:
    0 12px 30px rgba(0, 0, 0, 0.34),
    0 0 0 1px color-mix(in oklab, var(--accent-violet) 32%, transparent),
    0 0 20px color-mix(in oklab, var(--accent-violet) 20%, transparent);
}

.contact-map-wrap::before {
  content: '';
  position: absolute;
  inset: -22px -40px;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(60% 85% at 24% 50%, color-mix(in oklab, var(--accent-teal) 18%, transparent), transparent 72%),
    radial-gradient(62% 90% at 76% 40%, color-mix(in oklab, var(--accent-violet) 24%, transparent), transparent 74%);
  filter: blur(18px);
  opacity: 0.88;
}

.contact-map {
  width: 100%;
  height: 100%;
  min-height: 236px;
  border: 0;
  display: block;
  position: relative;
  z-index: 1;
  filter: saturate(0.62) contrast(0.9) brightness(0.62) hue-rotate(-8deg);
  transition: filter 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-map-tint {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(
      155deg,
      color-mix(in oklab, var(--accent-teal) 34%, transparent) 0%,
      color-mix(in oklab, var(--accent-violet) 34%, transparent) 58%,
      color-mix(in oklab, var(--accent-violet) 52%, transparent) 100%
    ),
    rgba(22, 14, 40, 0.56);
  opacity: 0.86;
  mix-blend-mode: multiply;
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1), background 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-map-wrap:hover,
.contact-map-wrap:focus-within {
  border-color: color-mix(in oklab, var(--accent-violet) 58%, var(--border-card));
  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.36),
    0 0 0 1px color-mix(in oklab, var(--accent-violet) 46%, transparent),
    0 0 24px color-mix(in oklab, var(--accent-violet) 24%, transparent);
}

.contact-map-wrap:hover .contact-map,
.contact-map-wrap:focus-within .contact-map {
  filter: saturate(0.96) contrast(0.98) brightness(0.9) hue-rotate(-2deg);
}

.contact-map-wrap:hover .contact-map-tint,
.contact-map-wrap:focus-within .contact-map-tint {
  opacity: 0.42;
  background:
    linear-gradient(
      155deg,
      color-mix(in oklab, var(--accent-teal) 20%, transparent) 0%,
      color-mix(in oklab, var(--accent-violet) 20%, transparent) 58%,
      color-mix(in oklab, var(--accent-violet) 30%, transparent) 100%
    ),
    rgba(18, 12, 34, 0.22);
  mix-blend-mode: screen;
}

.contact-side-hint {
  position: relative;
  z-index: 1;
  font-size: 0.73rem;
  color: var(--text-muted);
}

.contact-email-card { position: relative; }

.copy-email-btn {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  font-size: 0.74rem;
  font-weight: 500;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  background: var(--bg-card);
  transition: all var(--transition);
  align-self: flex-start;
}

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

/* ─── FOOTER ─── */
.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-card);
}

/* ─── COMMAND PALETTE ─── */
.cmd-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 20vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.cmd-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cmd-modal {
  width: 95%;
  max-width: 520px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  overflow: hidden;
  transform: scale(0.96) translateY(-8px);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.cmd-overlay.open .cmd-modal {
  transform: scale(1) translateY(0);
}

.cmd-search-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
}

.cmd-search-icon { color: var(--text-muted); flex-shrink: 0; }

.cmd-search {
  flex: 1;
  border: none;
  background: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
}

.cmd-search::placeholder { color: var(--text-muted); }

.cmd-esc {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
}

.cmd-divider {
  height: 1px;
  background: var(--border-card);
}

.cmd-list {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px;
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.cmd-item:hover,
.cmd-item.selected {
  background: rgba(139, 92, 246, 0.12);
  color: var(--text-primary);
}

.cmd-item.hidden { display: none; }

.cmd-item svg { flex-shrink: 0; color: var(--text-muted); }

/* ─── TOAST ─── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: var(--accent-teal);
  color: #0a0a0a;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 300;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ─── SCROLL REVEAL ─── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .mini-map { display: none; }
  .cert-card {
    grid-template-columns: 6px minmax(0, 1fr);
  }
  .cert-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
    padding-right: 0;
  }
  .cert-link {
    margin: 0 0 20px 2px;
  }
  .conference-content-inner {
    grid-template-columns: 1fr;
  }
  .conference-slider {
    width: min(100%, 320px);
  }
  .languages-grid { grid-template-columns: 1fr; }
  .additional-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-grid-creative .contact-main-card {
    grid-row: auto;
    min-height: 250px;
  }
  .contact-footer-card {
    grid-column: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: 220px;
  }
  .contact-footer-info {
    max-width: none;
  }
  .contact-map-wrap,
  .contact-map {
    min-height: 190px;
  }
  .cmd-hint-text { display: none; }
}

@media (max-width: 600px) {
  .hero-name { font-size: 2.8rem; }
  .section { padding: 60px 16px; }
  .glass-card { padding: 20px; }
  .section-title { font-size: 1.6rem; }
  .cert-main { padding: 16px 0 16px 2px; }
  .cert-title { font-size: 1.1rem; }
  .cert-link {
    margin: 0 0 16px 2px;
    width: calc(100% - 2px);
    text-align: center;
  }
  .cert-content-inner {
    padding-right: 0;
    grid-template-columns: 1fr;
  }
  .conference-toggle {
    padding: 12px 12px 10px;
  }
  .conference-content-inner {
    padding: 10px 12px 14px;
  }
  .conference-name {
    font-size: 0.98rem;
  }
  .conference-notes {
    font-size: 0.82rem;
  }
  .conference-links {
    gap: 6px;
  }
  .conference-link {
    padding: 6px 10px;
    font-size: 0.76rem;
  }
  .timeline { padding-left: 28px; }
  .timeline-header { padding: 16px; }
  .timeline-list { padding: 16px; }
}