/* ============================================================
   TAIWO PORTFOLIO — style.css
   Design system: deep navy + electric azure accent
   Typefaces: Inter (body/UI) + JetBrains Mono (code/logo)
   ============================================================ */

/* ── 1. TOKENS ─────────────────────────────────────────────── */
:root {
  /* Light mode colours */
  --clr-bg:          #f5f7fa;
  --clr-bg-alt:      #eef1f6;
  --clr-surface:     #ffffff;
  --clr-surface-2:   #f0f4f9;
  --clr-border:      #dde3ee;
  --clr-text:        #0d1117;
  --clr-text-2:      #4a5568;
  --clr-text-3:      #718096;
  --clr-accent:      #0078d4;   /* Azure blue */
  --clr-accent-dk:   #005a9e;
  --clr-accent-lt:   #e8f2fd;
  --clr-navy:        #0f2342;
  --clr-success:     #107c10;
  --clr-terminal-bg: #0d1117;
  --clr-terminal-bd: #30363d;

  /* Typography */
  --font-body:  'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Spacing scale */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-24: 6rem;

  /* Radius */
  --r-sm:  4px;
  --r-md:  8px;
  --r-lg:  12px;
  --r-xl:  16px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 12px rgba(0,0,0,.1);
  --shadow-lg:  0 12px 32px rgba(0,0,0,.12);

  /* Nav height */
  --nav-h: 64px;

  /* Transitions */
  --tr:   0.2s ease;
}

/* Dark mode */
body.dark-mode {
  --clr-bg:          #0d1117;
  --clr-bg-alt:      #161b22;
  --clr-surface:     #1c2230;
  --clr-surface-2:   #21293a;
  --clr-border:      #2d3748;
  --clr-text:        #e6edf3;
  --clr-text-2:      #8b949e;
  --clr-text-3:      #6e7681;
  --clr-accent:      #4da6ff;
  --clr-accent-dk:   #2d8cf0;
  --clr-accent-lt:   #1a2d42;
  --clr-navy:        #141e30;
  --clr-success:     #3fb950;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
  --shadow-md:  0 4px 12px rgba(0,0,0,.4);
  --shadow-lg:  0 12px 32px rgba(0,0,0,.5);
}

/* ── 2. RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background var(--tr), color var(--tr);
}

img { max-width: 100%; display: block; }
a { color: var(--clr-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

/* ── 3. LAYOUT UTILITIES ───────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section {
  padding: var(--sp-24) 0;
}

.section-alt {
  background: var(--clr-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-lt);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-sm);
  margin-bottom: var(--sp-3);
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-3);
}

.section-sub {
  font-size: 1.05rem;
  color: var(--clr-text-2);
  max-width: 560px;
  margin: 0 auto;
}

/* ── 4. BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.65rem 1.4rem;
  border-radius: var(--r-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background var(--tr), color var(--tr), border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  white-space: nowrap;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}
.btn-primary:hover { background: var(--clr-accent-dk); border-color: var(--clr-accent-dk); }

.btn-secondary {
  background: var(--clr-surface);
  color: var(--clr-text);
  border-color: var(--clr-border);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { border-color: var(--clr-accent); color: var(--clr-accent); }

.btn-outline {
  background: transparent;
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.btn-outline:hover { background: var(--clr-accent-lt); }

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: auto;
  padding: 0.55rem 1.1rem;
  border-radius: var(--r-md);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--clr-surface-2);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  text-decoration: none;
  transition: background var(--tr), color var(--tr), border-color var(--tr);
}
.btn-github:hover { background: var(--clr-accent); color: #fff; border-color: var(--clr-accent); text-decoration: none; }

.btn-large { padding: 0.85rem 2rem; font-size: 1rem; }

/* ── 5. NAVBAR ─────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  z-index: 1000;
  transition: background var(--tr), border-color var(--tr), box-shadow var(--tr);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--clr-text);
  text-decoration: none;
  white-space: nowrap;
}
.nav-logo:hover { text-decoration: none; color: var(--clr-accent); }

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text-2);
  text-decoration: none;
  transition: color var(--tr);
}
.nav-links a:hover { color: var(--clr-accent); }

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.theme-toggle {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background var(--tr), border-color var(--tr);
}
.theme-toggle:hover { background: var(--clr-accent-lt); border-color: var(--clr-accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
}

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

/* ── 6. HERO ───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-h) + var(--sp-16)) var(--sp-6) var(--sp-16);
  background: var(--clr-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-12);
  flex-wrap: wrap;
}

.hero-content {
  flex: 1 1 480px;
  max-width: 600px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-4);
}

.hero-name {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--sp-6);
}

.hero-fullname {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 400;
  color: #8b9bb4;
  margin-top: calc(var(--sp-3) * -1);
  margin-bottom: var(--sp-6);
  letter-spacing: 0.01em;
}

.hero-summary {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: #a8b8cc;
  line-height: 1.75;
  margin-bottom: var(--sp-8);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.875rem;
  color: #6b8096;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3fb950;
  box-shadow: 0 0 0 3px rgba(63,185,80,.25);
  flex-shrink: 0;
}

/* Hero visual: photo + terminal stack */
.hero-visual {
  flex: 1 1 360px;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
}

.hero-photo-wrap {
  width: 168px;
  height: 168px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--clr-accent), #3fb950);
  flex-shrink: 0;
  box-shadow: var(--shadow-lg);
}

.hero-photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 18%;
  border: 4px solid var(--clr-navy);
  display: block;
}

.terminal-card {
  background: var(--clr-terminal-bg);
  border: 1px solid var(--clr-terminal-bd);
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  background: #161b22;
  border-bottom: 1px solid var(--clr-terminal-bd);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #ffbd2e; }
.dot-green  { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #6e7681;
  margin-left: var(--sp-2);
}

.terminal-body {
  padding: var(--sp-4) var(--sp-6);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
}

.terminal-body p { color: #e6edf3; }

.prompt { color: var(--clr-accent); font-weight: 600; margin-right: var(--sp-2); }

.indent { padding-left: 1.6rem; color: #8b949e; }

.t-output { color: #8b949e; margin-top: var(--sp-1); }
.t-success { color: #3fb950; }

.t-blink {
  color: var(--clr-accent);
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── 7. ABOUT ──────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--sp-12);
  align-items: start;
}

.about-text p {
  color: var(--clr-text-2);
  margin-bottom: var(--sp-4);
  font-size: 1rem;
  line-height: 1.75;
}

.about-text p strong { color: var(--clr-text); }

.about-highlights {
  margin-top: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-4);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
}

.hi-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 2px;
}

.highlight-item strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 2px;
}

.highlight-item p {
  font-size: 0.85rem;
  color: var(--clr-text-3);
  margin: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6) var(--sp-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  box-shadow: var(--shadow-sm);
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-accent);
  font-family: var(--font-mono);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--clr-text-3);
  font-weight: 500;
  text-align: center;
  line-height: 1.3;
}

/* ── 8. SKILLS ─────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.skill-group {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-sm);
}

.skill-group-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.sg-icon { font-size: 1rem; }

.learning-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 7px;
  background: #fff3e0;
  color: #b25c00;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid #f0a500;
}

body.dark-mode .learning-badge {
  background: #2d1f0a;
  color: #e6a817;
  border-color: #6b4200;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.skill-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--clr-border);
  cursor: default;
}

.skill-tag.active {
  background: var(--clr-accent-lt);
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}

.skill-tag.learning {
  background: #fff8ee;
  color: #854d0e;
  border-color: #f59e0b;
}

body.dark-mode .skill-tag.learning {
  background: #251c0b;
  color: #fbbf24;
  border-color: #78350f;
}

.skills-legend {
  text-align: center;
  font-size: 0.8rem;
  color: var(--clr-text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid;
  margin-right: 4px;
}

.ld-active  { background: var(--clr-accent-lt); border-color: var(--clr-accent); }
.ld-learning{ background: #fff8ee; border-color: #f59e0b; }
body.dark-mode .ld-learning { background: #251c0b; border-color: #fbbf24; }

/* ── 9. TIMELINE ───────────────────────────────────────────── */
.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 120px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--clr-border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 16px 1fr;
  gap: 0 var(--sp-6);
  margin-bottom: var(--sp-8);
  position: relative;
  align-items: start;
}

.tl-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-text-3);
  padding-top: 3px;
  text-align: right;
  padding-right: var(--sp-4);
}

.tl-marker {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--clr-surface);
  border: 3px solid var(--clr-border);
  margin-top: 4px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.tl-marker.current {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 4px var(--clr-accent-lt);
}

.tl-marker.future {
  background: var(--clr-bg);
  border-color: var(--clr-text-3);
  border-style: dashed;
}

.tl-content {
  padding-bottom: var(--sp-4);
}

.tl-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}

.tl-content p {
  font-size: 0.9rem;
  color: var(--clr-text-2);
  line-height: 1.65;
}

.tl-content strong { color: var(--clr-text); }

/* ── 10. PROJECTS ──────────────────────────────────────────── */
.projects-group-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-6);
  font-family: var(--font-mono);
}

.projects-group-label.upcoming {
  margin-top: var(--sp-12);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-6);
}

.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr), border-color var(--tr), transform var(--tr);
}

.devops {
  margin-top: 15px;
}

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

.project-card.coming-soon {
  opacity: 0.82;
}

.project-card.coming-soon:hover {
  border-color: var(--clr-text-3);
  transform: none;
}

.pc-header {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.pc-header h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-text);
  line-height: 1.35;
  flex: 1 1 180px;
}

.pc-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: 99px;
  flex-shrink: 0;
  white-space: nowrap;
}

.badge-azure  { background: #dbeafe; color: #1d4ed8; }
.badge-net    { background: #dcfce7; color: #166534; }
.badge-auto   { background: #fef9c3; color: #854d0e; }
.badge-linux  { background: #fce7f3; color: #9d174d; }
.badge-iac    { background: #ede9fe; color: #6d28d9; }
.badge-cont   { background: #cffafe; color: #0e7490; }
.badge-devops { background: #ffedd5; color: #c2410c; }
.badge-k8s    { background: #e0e7ff; color: #3730a3; }

body.dark-mode .badge-azure  { background: #1e3a5f; color: #93c5fd; }
body.dark-mode .badge-net    { background: #14532d; color: #86efac; }
body.dark-mode .badge-auto   { background: #422006; color: #fde68a; }
body.dark-mode .badge-linux  { background: #4a044e; color: #f9a8d4; }
body.dark-mode .badge-iac    { background: #2e1065; color: #c4b5fd; }
body.dark-mode .badge-cont   { background: #0c4a6e; color: #7dd3fc; }
body.dark-mode .badge-devops { background: #431407; color: #fdba74; }
body.dark-mode .badge-k8s    { background: #1e1b4b; color: #a5b4fc; }

.coming-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 99px;
  background: var(--clr-surface-2);
  color: var(--clr-text-3);
  border: 1px solid var(--clr-border);
  white-space: nowrap;
  flex-shrink: 0;
}

.pc-overview {
  font-size: 0.9rem;
  color: var(--clr-text-2);
  line-height: 1.6;
}

.pc-section {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.pc-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--clr-text-3);
}

.pc-section > p {
  font-size: 0.85rem;
  color: var(--clr-text-2);
  line-height: 1.55;
}

.pc-skills {
  list-style: disc;
  padding-left: var(--sp-4);
}

.pc-skills li {
  font-size: 0.85rem;
  color: var(--clr-text-2);
  line-height: 1.55;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.tech-tags span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  padding: 3px 10px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  color: var(--clr-text-2);
}

/* ── 11. CERTIFICATIONS ────────────────────────────────────── */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-6);
}

.cert-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  display: flex;
  gap: var(--sp-6);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr), border-color var(--tr);
}

.cert-card:hover { box-shadow: var(--shadow-md); }

.cert-card.cert-active { border-color: var(--clr-accent); }

.cert-logo {
  width: 64px;
  height: 64px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.2;
  flex-shrink: 0;
}

.cl-104  { background: #dbeafe; color: #1d4ed8; border: 2px solid #93c5fd; }
.cl-900  { background: #dcfce7; color: #166534; border: 2px solid #86efac; }
.cl-next { background: var(--clr-surface-2); color: var(--clr-text-3); border: 2px dashed var(--clr-border); font-size: 1.6rem; }
.cl-lf   { background: #fef3c7; color: #92400e; border: 2px solid #fcd34d; }
.cl-k8s  { background: #ede9fe; color: #5b21b6; border: 2px solid #c4b5fd; }
.cl-net  { background: #d1fae5; color: #065f46; border: 2px solid #6ee7b7; }

body.dark-mode .cl-104 { background: #1e3a5f; color: #93c5fd; border-color: #2563eb; }
body.dark-mode .cl-900 { background: #14532d; color: #86efac; border-color: #16a34a; }
body.dark-mode .cl-lf  { background: #3b2a0a; color: #fcd34d; border-color: #d97706; }
body.dark-mode .cl-k8s { background: #2e1f5e; color: #c4b5fd; border-color: #7c3aed; }
body.dark-mode .cl-net { background: #064e3b; color: #6ee7b7; border-color: #059669; }

.cert-card.cert-earned  { border-color: #10b981; }
.cert-card.cert-featured { border-color: var(--clr-accent); border-width: 2px; }
.cs-earned { background: #d1fae5; color: #065f46; border: 1px solid #10b981; }
body.dark-mode .cs-earned { background: #064e3b; color: #6ee7b7; border-color: #059669; }

.cert-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 2px;
}

.cert-issuer {
  font-size: 0.8rem;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-3);
  font-family: var(--font-mono);
}

.cert-desc {
  font-size: 0.85rem;
  color: var(--clr-text-2);
  line-height: 1.55;
  margin-bottom: var(--sp-3);
}

.cert-status {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
}

.cs-progress { background: var(--clr-accent-lt); color: var(--clr-accent); border: 1px solid var(--clr-accent); }
.cs-eval     { background: var(--clr-surface-2); color: var(--clr-text-3); border: 1px solid var(--clr-border); }
.cs-road     { background: var(--clr-surface-2); color: var(--clr-text-3); border: 1px dashed var(--clr-border); }

/* ── 12. ARTICLES ──────────────────────────────────────────── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-6);
  min-height: 200px;
  margin-bottom: var(--sp-8);
}

.articles-loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  color: var(--clr-text-3);
  padding: var(--sp-12);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.article-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr), border-color var(--tr), transform var(--tr);
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.article-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--clr-accent);
  font-family: var(--font-mono);
}

.article-title {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--clr-text);
  line-height: 1.4;
}

.article-excerpt {
  font-size: 0.85rem;
  color: var(--clr-text-2);
  line-height: 1.55;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.75rem;
  color: var(--clr-text-3);
  padding-top: var(--sp-2);
  border-top: 1px solid var(--clr-border);
  flex-wrap: wrap;
}

.articles-cta {
  text-align: center;
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
}

.articles-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--sp-8);
  color: var(--clr-text-3);
  font-size: 0.9rem;
}

/* ── 13. RESUME ────────────────────────────────────────────── */
.resume-section {
  background: var(--clr-accent);
}

.resume-section .section-tag,
.resume-section .section-title,
.resume-section p {
  color: rgba(255,255,255,0.95);
}

.resume-section .section-tag {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

.resume-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
  flex-wrap: wrap;
  padding: var(--sp-8) 0;
}

.resume-text .section-title { margin-bottom: var(--sp-3); }

.resume-section .btn-primary {
  background: #fff;
  color: var(--clr-accent);
  border-color: #fff;
}
.resume-section .btn-primary:hover {
  background: rgba(255,255,255,0.9);
}

.resume-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.resume-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
}

/* ── 14. CONTACT ───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.contact-message p {
  font-size: 1rem;
  color: var(--clr-text-2);
  line-height: 1.75;
  margin-bottom: var(--sp-4);
}

.contact-message strong { color: var(--clr-text); }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  text-decoration: none;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  box-shadow: var(--shadow-sm);
}

.contact-link:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  text-decoration: none;
}

.cl-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  flex-shrink: 0;
  font-size: 1rem;
}

.cl-linkedin .cl-icon { background: #dbeafe; color: #1d4ed8; }
.cl-github   .cl-icon { background: var(--clr-surface-2); color: var(--clr-text); }
.cl-devto    .cl-icon { background: #f0f0f0; color: #333; font-size: 0.7rem; }
.cl-email    .cl-icon { background: #fef9c3; color: #854d0e; }
.cl-hashnode .cl-icon { background: #ede9fe; color: #5b21b6; }

body.dark-mode .cl-linkedin .cl-icon { background: #1e3a5f; color: #93c5fd; }
body.dark-mode .cl-github   .cl-icon { background: #21293a; color: var(--clr-text); }
body.dark-mode .cl-devto    .cl-icon { background: #21293a; color: var(--clr-text-2); }
body.dark-mode .cl-email    .cl-icon { background: #251c0b; color: #fbbf24; }
body.dark-mode .cl-hashnode .cl-icon { background: #2e1f5e; color: #c4b5fd; }

.cl-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cl-body strong {
  font-size: 0.9rem;
  color: var(--clr-text);
  font-weight: 600;
}

.cl-body span {
  font-size: 0.8rem;
  color: var(--clr-text-3);
  font-family: var(--font-mono);
}

/* ── 15. FOOTER ────────────────────────────────────────────── */
.footer {
  background: var(--clr-navy);
  padding: var(--sp-12) 0 var(--sp-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  flex-wrap: wrap;
  margin-bottom: var(--sp-8);
  padding-bottom: var(--sp-8);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo {
  color: #fff;
  margin-bottom: var(--sp-2);
  display: inline-block;
}

.footer-fullname {
  font-size: 0.8rem;
  color: #a8b8cc;
  margin-bottom: 2px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: #6b8096;
}

.footer-nav {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.875rem;
  color: #8b949e;
  text-decoration: none;
  transition: color var(--tr);
}
.footer-nav a:hover { color: #fff; }

.footer-social {
  display: flex;
  gap: var(--sp-3);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.08);
  color: #8b949e;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-decoration: none;
  transition: background var(--tr), color var(--tr);
}
.footer-social a:hover { background: var(--clr-accent); color: #fff; }

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: #4a5568;
}

.footer-bottom a {
  color: var(--clr-accent);
}

/* ── 16. MOBILE NAV OVERLAY ────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    flex-direction: column;
    padding: var(--sp-6);
    gap: var(--sp-4);
    transform: translateY(-110%);
    transition: transform 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links a {
    font-size: 1rem;
    padding: var(--sp-2) 0;
    border-bottom: 1px solid var(--clr-border);
  }

  .nav-links a:last-child { border-bottom: none; }

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

/* ── 17. RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: calc(var(--nav-h) + var(--sp-12)) var(--sp-6) var(--sp-12);
    text-align: center;
    gap: var(--sp-8);
  }

  .hero-content { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-meta    { justify-content: center; }
  .hero-visual  { max-width: 100%; }

  .timeline::before { left: 0; }
  .timeline-item {
    grid-template-columns: 16px 1fr;
    grid-template-rows: auto auto;
    column-gap: var(--sp-4);
  }
  .tl-date {
    grid-column: 2;
    grid-row: 1;
    text-align: left;
    padding-right: 0;
    margin-bottom: var(--sp-1);
  }
  .tl-marker {
    grid-column: 1;
    grid-row: 1 / 3;
    margin-top: 2px;
  }
  .tl-content {
    grid-column: 2;
    grid-row: 2;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

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

  .resume-inner {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--sp-4);
  }
}

@media (max-width: 520px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid    { grid-template-columns: 1fr; }
  .cert-card     { flex-direction: column; }
  .about-stats   { grid-template-columns: 1fr 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
}

/* ── 18. REDUCED MOTION ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ── 19. PRINT ─────────────────────────────────────────────── */
@media print {
  .navbar, .hero-visual, .hero-actions, .theme-toggle, .hamburger { display: none; }
  body { font-size: 12pt; }
}