/* ═══════════════════════════════════════════════════════
   DESIGN SYSTEM — Dibya Jyoti Dhar · SQA Portfolio
   Palette: Precision Dark / Clean Light
   Fonts: Space Grotesk · Inter · JetBrains Mono
═══════════════════════════════════════════════════════ */

/* ─── CUSTOM PROPERTIES ─── */
:root {
  /* Dark theme (default) */
  --bg-primary:      #0A0F1E;
  --bg-secondary:    #111827;
  --bg-card:         #0F172A;
  --bg-card-hover:   #1E293B;
  --bg-glass:        rgba(15, 23, 42, 0.75);
  --bg-glass-border: rgba(0, 212, 255, 0.12);

  --accent:          #00D4FF;
  --accent-dim:      rgba(0, 212, 255, 0.15);
  --accent-hover:    #33DCFF;
  --accent-amber:    #F59E0B;
  --accent-red:      #EF4444;
  --accent-green:    #10B981;

  --text-primary:    #F1F5F9;
  --text-secondary:  #94A3B8;
  --text-muted:      #475569;
  --border:          rgba(148, 163, 184, 0.1);
  --border-accent:   rgba(0, 212, 255, 0.2);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 24px rgba(0, 212, 255, 0.18);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full: 9999px;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --nav-height: 68px;
  --container:  1160px;
}

[data-theme="light"] {
  --bg-primary:      #F8FAFC;
  --bg-secondary:    #F1F5F9;
  --bg-card:         #FFFFFF;
  --bg-card-hover:   #F8FAFC;
  --bg-glass:        rgba(255,255,255,0.8);
  --bg-glass-border: rgba(2, 132, 199, 0.15);

  --accent:          #0284C7;
  --accent-dim:      rgba(2, 132, 199, 0.1);
  --accent-hover:    #0369A1;
  --accent-amber:    #D97706;

  --text-primary:    #0F172A;
  --text-secondary:  #475569;
  --text-muted:      #94A3B8;
  --border:          rgba(15, 23, 42, 0.08);
  --border-accent:   rgba(2, 132, 199, 0.2);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 24px rgba(0,0,0,0.1);
  --shadow-lg:  0 8px 48px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 24px rgba(2, 132, 199, 0.15);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

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

ul { list-style: none; }

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── SKIP LINK ─── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #000;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 1rem;
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── SELECTION ─── */
::selection {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ─── CONTAINER ─── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── THEME IMAGE HELPERS ─── */
[data-theme="dark"]  .light-only { display: none;  }
[data-theme="dark"]  .dark-only  { display: block; }
[data-theme="light"] .dark-only  { display: none;  }
[data-theme="light"] .light-only { display: block; }

/* ═══════════════════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border: 2px solid var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

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

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.82rem;
}

/* ═══════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition-slow), box-shadow var(--transition);
}

.navbar.scrolled {
  background: var(--bg-glass);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--border-accent);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--accent); }

.logo-bracket {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color var(--transition), background var(--transition);
  background: transparent;
}
.theme-btn:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: transparent;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-height) + 4rem) 1.5rem 5rem;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Background grid */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.5;
  pointer-events: none;
}

/* Glow orbs */
.hero-orb {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.35;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.4), transparent 70%);
  top: -200px; left: -200px;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25), transparent 70%);
  bottom: -100px; right: -100px;
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Hero badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  margin-bottom: 1.25rem;
  width: fit-content;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--accent-green);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.8);
  animation: pulse-dot 2.2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

/* Hero name */
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

/* Terminal typewriter */
.hero-terminal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: var(--accent);
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 0.55rem 1rem;
  margin-bottom: 1.5rem;
  width: fit-content;
  max-width: 100%;
}
.terminal-prompt {
  color: var(--accent-amber);
  font-weight: 700;
  flex-shrink: 0;
}
#typewriter {
  color: var(--text-primary);
}
.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 700;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Hero tagline */
.hero-tagline {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.75;
  margin-bottom: 2rem;
}

/* Hero CTAs */
.hero-ctas {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

/* Hero stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  width: fit-content;
}
.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-plus {
  font-size: 1.2rem;
  color: var(--accent-amber);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-align: center;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* Hero image */
.hero-image-wrap {
  position: relative;
  width: 320px;
  height: 320px;
  flex-shrink: 0;
}

.hero-image-ring {
  position: absolute;
  inset: -16px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border-accent);
  animation: spin-ring 20s linear infinite;
  pointer-events: none;
}
.hero-image-ring-2 {
  inset: -32px;
  border-style: dashed;
  border-color: rgba(0, 212, 255, 0.08);
  animation-duration: 35s;
  animation-direction: reverse;
}
@keyframes spin-ring {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.hero-photo {
  width: 320px;
  height: 320px;
  border-radius: var(--radius-full);
  object-fit: cover;
  object-position: top center;
  border: 3px solid var(--border-accent);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  position: relative;
  z-index: 1;
}

/* Floating badges on image */
.hero-badge-float {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  animation: float 4s ease-in-out infinite;
}
.hero-badge-float i { color: var(--accent); font-size: 0.85rem; }
.hero-badge-float-1 {
  top: 20px; left: -60px;
  animation-delay: 0s;
}
.hero-badge-float-2 {
  bottom: 30px; right: -50px;
  animation-delay: 1.5s;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  animation: bounce 2s ease-in-out infinite;
  z-index: 1;
}
.scroll-indicator i { font-size: 1rem; }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ═══════════════════════════════════════════════════════
   SECTIONS — SHARED
═══════════════════════════════════════════════════════ */
.section {
  padding: 6rem 0;
}
.section-alt {
  background: var(--bg-secondary);
  position: relative;
}
.section-alt::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}
.section-alt::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* ═══════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.about-lead {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.65;
}
.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.97rem;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.highlight-item i {
  color: var(--accent);
  width: 16px;
  flex-shrink: 0;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.about-card {
  padding: 1.4rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.about-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.about-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}
.about-card h3 {
  font-family: var(--font-display);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}
.about-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════
   EXPERIENCE TIMELINE
═══════════════════════════════════════════════════════ */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--accent),
    var(--border-accent) 70%,
    transparent
  );
  border-radius: var(--radius-full);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 1.4rem;
  transform: translateX(-50%);
}
.timeline-dot {
  display: block;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--accent);
  border: 2.5px solid var(--bg-primary);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
  transition: box-shadow var(--transition);
}
[data-theme="light"] .timeline-dot {
  border-color: var(--bg-secondary);
}
.timeline-dot-muted {
  background: var(--text-muted);
  box-shadow: none;
}
.timeline-item:hover .timeline-dot {
  box-shadow: 0 0 14px rgba(0, 212, 255, 0.8);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.timeline-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.timeline-company {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}
.timeline-role {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}
.timeline-period {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.timeline-period i { font-size: 0.7rem; }

.timeline-bullets {
  padding-left: 1.1rem;
  margin-bottom: 1.25rem;
}
.timeline-bullets li {
  list-style: none;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.65;
  position: relative;
  padding-left: 1rem;
}
.timeline-bullets li::before {
  content: '▸';
  position: absolute;
  left: -0.1rem;
  color: var(--accent);
  font-size: 0.7rem;
  top: 0.2rem;
}
.timeline-bullets li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════
   TAGS (shared)
═══════════════════════════════════════════════════════ */
.timeline-tags,
.project-tags,
.edu-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
.tag:hover {
  background: var(--accent);
  color: #000;
}

/* ═══════════════════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════════════════ */
.skills-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.skills-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
}
.skills-tab:hover {
  color: var(--accent);
  border-color: var(--border-accent);
  background: var(--accent-dim);
}
.skills-tab.active,
.skills-tab[aria-selected="true"] {
  color: #000;
  background: var(--accent);
  border-color: var(--accent);
}

.skills-panel { display: none; }
.skills-panel.active,
.skills-panel:not([hidden]) { display: block; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.skills-grid-wide {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.4rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition);
  cursor: default;
}
.skill-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transform: translateY(-4px);
}

.skill-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 6px;
}
.skill-icon-wrap img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}
.skill-icon-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.skill-name {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-level {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
}
.skill-level-expert {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.skill-level-proficient {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-accent);
}
.skill-level-learning {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Methodology cards */
.skill-card-method {
  flex-direction: row;
  align-items: center;
  gap: 1rem;
  text-align: left;
}
.skill-method-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.skill-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.project-card-wide {
  grid-column: 1 / -1;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition);
}
.project-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.project-card-top {
  padding: 1.75rem 1.75rem 0;
  flex: 1;
}
.project-card-bottom {
  padding: 1.25rem 1.75rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  margin-top: 1.5rem;
}

.project-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
}
.badge-manual {
  background: rgba(16, 185, 129, 0.12);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-auto {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-accent);
}
.badge-dev {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}
.project-subtitle {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}
.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.project-coverage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.project-coverage-4col {
  grid-template-columns: repeat(4, 1fr);
}
.coverage-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.coverage-item i {
  color: var(--accent-green);
  font-size: 0.7rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.project-actions {
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════
   EDUCATION
═══════════════════════════════════════════════════════ */
.edu-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.edu-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.edu-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.edu-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.edu-icon-sm {
  width: 40px;
  height: 40px;
  font-size: 1rem;
}

.edu-body { flex: 1; }
.edu-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.edu-institution {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}
.edu-degree {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.1rem;
}
.edu-dept {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.edu-year {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-lead {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}
.contact-text p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.contact-availability {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: #10B981;
  margin-top: 1.5rem;
}
.contact-availability strong { color: #10B981; }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
}
.contact-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: background var(--transition);
}
.contact-icon-telegram { background: rgba(39, 174, 245, 0.12); color: #27AEF5; }
.contact-icon-linkedin { background: rgba(10, 102, 194, 0.15); color: #0A66C2; }
.contact-icon-github   { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.contact-icon-cv       { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }

.contact-card:hover .contact-icon-telegram { background: #27AEF5; color: #fff; }
.contact-card:hover .contact-card-icon { background: var(--accent); color: #000; }
.contact-card:hover .contact-icon-linkedin { background: #0A66C2; color: #fff; }
.contact-card:hover .contact-icon-github   { background: var(--text-primary); color: var(--bg-primary); }
.contact-card:hover .contact-icon-cv       { background: var(--accent-amber); color: #000; }

.contact-card-text {
  flex: 1;
  min-width: 0;
}
.contact-card-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.contact-card-value {
  display: block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.contact-card-arrow {
  color: var(--text-muted);
  font-size: 0.8rem;
  flex-shrink: 0;
  transition: color var(--transition), transform var(--transition);
}
.contact-card:hover .contact-card-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 0.83rem;
  color: var(--text-muted);
  text-align: center;
}

.back-to-top {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition);
  cursor: pointer;
}
.back-to-top:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
═══════════════════════════════════════════════════════ */
.reveal-up,
.reveal-right {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--delay, 0s);
}
.reveal-right {
  transform: translateX(32px);
}
.revealed {
  opacity: 1 !important;
  transform: translate(0, 0) !important;
}

@media (prefers-reduced-motion: reduce) {
  .reveal-up,
  .reveal-right,
  .hero-badge-float,
  .hero-image-ring,
  .scroll-indicator,
  .status-dot {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 1024px)
═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content { order: 2; }
  .hero-image-wrap {
    order: 1;
    margin: 0 auto;
    width: 260px;
    height: 260px;
  }
  .hero-photo { width: 260px; height: 260px; }
  .hero-tagline { margin: 0 auto 2rem; }
  .hero-ctas { justify-content: center; }
  .hero-stats { margin: 0 auto; }
  .hero-badge { margin: 0 auto 1.25rem; }
  .hero-badge-float-1 { left: -20px; }
  .hero-badge-float-2 { right: -20px; }

  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .project-coverage-4col { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 768px)
═══════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-height: 60px; }

  /* Nav */
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 0.25rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 999;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 0.6rem 0.75rem;
    font-size: 0.9rem;
    display: block;
    width: 100%;
  }
  .hamburger { display: flex; }
  .nav-actions .btn { display: none; }

  /* Hero */
  .hero {
    padding: calc(var(--nav-height) + 2.5rem) 1.25rem 4rem;
  }
  .hero-image-wrap { width: 220px; height: 220px; }
  .hero-photo { width: 220px; height: 220px; }
  .hero-badge-float { display: none; }
  .hero-image-ring, .hero-image-ring-2 { display: none; }
  .hero-stats {
    gap: 1rem;
    padding: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .stat-divider { display: none; }
  .stat-number { font-size: 1.5rem; }

  /* Sections */
  .section { padding: 4rem 0; }
  .section-header { margin-bottom: 2.5rem; }

  /* Timeline */
  .timeline { padding-left: 1.5rem; }
  .timeline-marker { left: -1.5rem; }
  .timeline-card { padding: 1.25rem; }
  .timeline-header { flex-direction: column; gap: 0.4rem; }
  .timeline-period { margin-top: 0; }

  /* Skills */
  .skills-tabs { gap: 0.4rem; }
  .skills-tab { font-size: 0.8rem; padding: 0.45rem 0.85rem; }
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
  .skills-grid-wide {
    grid-template-columns: 1fr;
  }
  .skill-card-method { gap: 0.75rem; }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr; }
  .project-card-wide { grid-column: auto; }
  .project-coverage { grid-template-columns: 1fr; }
  .project-coverage-4col { grid-template-columns: 1fr 1fr; }

  /* Education */
  .edu-card { padding: 1.25rem; }
  .edu-header { flex-direction: column; gap: 0.4rem; }

  /* Contact */
  .contact-card-value { font-size: 0.83rem; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; gap: 0.75rem; }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤ 480px)
═══════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .hero-name { font-size: 2rem; }
  .hero-terminal { font-size: 0.82rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .section-title { font-size: 1.6rem; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .project-coverage-4col { grid-template-columns: 1fr; }
  .hero-stats { width: 100%; }
}

/* ═══════════════════════════════════════════════════════
   CONTACT SECTION — Updated two-column layout
   Append these rules to the bottom of css/style.css
═══════════════════════════════════════════════════════ */

/* ─── Two-column grid ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

/* ─── Left column ─── */
.contact-left {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-lead {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  line-height: 1.6;
}

.contact-body {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.1rem;
}

.contact-availability {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: #10B981;
  margin-bottom: 1.5rem;
}
.contact-availability strong { color: #10B981; }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* Contact cards — compact variant for two-column layout */
.contact-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
}
.contact-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.contact-card-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
}
.contact-icon-linkedin { background: rgba(10, 102, 194, 0.15); color: #0A66C2; }
.contact-icon-github   { background: rgba(255,255,255,0.06);   color: var(--text-primary); }
.contact-icon-cv       { background: rgba(245,158,11,0.12);    color: var(--accent-amber); }

.contact-card:hover .contact-card-icon { background: var(--accent);        color: #000; }
.contact-card:hover .contact-icon-linkedin { background: #0A66C2;          color: #fff; }
.contact-card:hover .contact-icon-github   { background: var(--text-primary); color: var(--bg-primary); }
.contact-card:hover .contact-icon-cv       { background: var(--accent-amber); color: #000; }

.contact-card-text   { flex: 1; min-width: 0; }
.contact-card-label  {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 0.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.contact-card-value  {
  display: block;
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-card-arrow {
  color: var(--text-muted);
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: color var(--transition), transform var(--transition);
}
.contact-card:hover .contact-card-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* ─── Right column: form card ─── */
.contact-right { }

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: border-color var(--transition);
}
.contact-form-card:focus-within {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.contact-form-heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}
.contact-form-subheading {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* ─── Form elements ─── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}
.form-required {
  color: var(--accent-red);
  margin-left: 2px;
}

.form-input {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.9rem;
  width: 100%;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-input::placeholder {
  color: var(--text-muted);
  font-size: 0.86rem;
}
.form-input:hover {
  border-color: var(--border-accent);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  background: var(--bg-card);
}
.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.65;
}

/* ─── Submit button ─── */
.form-submit {
  width: 100%;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  font-size: 0.92rem;
  margin-top: 0.25rem;
  position: relative;
}
.form-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}
.submit-loading { display: none; }
.form-submit.is-loading .submit-text    { display: none; }
.form-submit.is-loading .submit-loading { display: inline-flex; align-items: center; gap: 0.4rem; }

/* ─── Privacy note ─── */
.form-privacy {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.76rem;
  color: var(--text-muted);
  text-align: center;
  justify-content: center;
  line-height: 1.4;
  margin-top: 0.1rem;
}
.form-privacy i {
  color: var(--accent);
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* ─── Feedback messages ─── */
.form-feedback {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  font-weight: 500;
  line-height: 1.4;
}
.form-feedback[hidden] { display: none; }

.form-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #10B981;
}
.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--accent-red);
}
.form-feedback i { font-size: 1rem; flex-shrink: 0; }

/* ─── Responsive: tablet ─── */
@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .contact-right { order: 2; } /* form goes below on tablet too */
}

/* ─── Responsive: mobile ─── */
@media (max-width: 640px) {
  .contact-form-card { padding: 1.4rem; }
  .form-row { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════
   CERTIFICATIONS & MEMBERSHIPS
═══════════════════════════════════════════════════════ */
.cert-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.cert-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.4rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.cert-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.cert-card-left { flex-shrink: 0; }

.cert-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.cert-icon-ieb {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.25);
  color: var(--accent-amber);
}

.cert-card-body { flex: 1; min-width: 0; }

.cert-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.cert-title {
  font-family: var(--font-display);
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.cert-org {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.cert-badge-member {
  background: rgba(16, 185, 129, 0.12);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.cert-badge-active {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  border: 1px solid var(--border-accent);
}

.cert-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.cert-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.cert-meta-item i {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.cert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.cert-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: gap var(--transition), opacity var(--transition);
}
.cert-link:hover {
  gap: 0.6rem;
  opacity: 0.8;
}
.cert-link i { font-size: 0.7rem; }

/* Responsive */
@media (max-width: 600px) {
  .cert-card { flex-direction: column; gap: 1rem; padding: 1.25rem; }
  .cert-card-header { flex-direction: column; gap: 0.5rem; }
  .cert-meta-row { gap: 0.6rem; }
}