/* ============================================================
   DAVIDALVAREZP.COM — MAIN STYLESHEET
   Dark-first · Security Dashboard Aesthetic
   IBM Plex Sans + IBM Plex Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;1,400&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */

:root {
  /* --- Dark theme (default) --- */
  --bg-0:       #04070f;
  --bg-1:       #070c16;
  --bg-2:       #0c1220;
  --bg-3:       #111928;
  --bg-card:    #0c1220;
  --bg-card-h:  #111928;

  --text-1:     #dde4f0;
  --text-2:     #8292a8;
  --text-3:     #3d4d60;

  --accent:     #22d3ee;
  --accent-rgb: 34, 211, 238;
  --accent-dim: rgba(34, 211, 238, 0.10);
  --accent-bdr: rgba(34, 211, 238, 0.22);
  --green:      #4ade80;
  --green-dim:  rgba(74, 222, 128, 0.10);
  --amber:      #fbbf24;
  --red:        #f87171;
  --purple:     #a78bfa;

  --border:     rgba(255, 255, 255, 0.06);
  --border-med: rgba(255, 255, 255, 0.11);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.35);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.45);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.55);
  --glow:       0 0 28px rgba(34, 211, 238, 0.12);
  --glow-lg:    0 0 60px rgba(34, 211, 238, 0.08);

  /* --- Typography --- */
  --font-sans:  'IBM Plex Sans',  system-ui, sans-serif;
  --font-mono:  'IBM Plex Mono',  'Fira Code', monospace;

  /* --- Layout --- */
  --nav-h:      64px;
  --container:  1100px;
  --radius-sm:  5px;
  --radius:     9px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  /* --- Motion --- */
  --ease:       cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast:     0.15s;
  --t-med:      0.28s;
  --t-slow:     0.45s;
}

[data-theme="light"] {
  --bg-0:       #eef2f7;
  --bg-1:       #f4f7fb;
  --bg-2:       #ffffff;
  --bg-3:       #f0f4f8;
  --bg-card:    #ffffff;
  --bg-card-h:  #f8fafc;

  --text-1:     #0d1520;
  --text-2:     #4a5a72;
  --text-3:     #9baabb;

  --accent:     #0891b2;
  --accent-rgb: 8, 145, 178;
  --accent-dim: rgba(8, 145, 178, 0.09);
  --accent-bdr: rgba(8, 145, 178, 0.28);
  --green:      #16a34a;
  --green-dim:  rgba(22, 163, 74, 0.09);
  --amber:      #d97706;
  --red:        #dc2626;
  --purple:     #7c3aed;

  --border:     rgba(0, 0, 0, 0.07);
  --border-med: rgba(0, 0, 0, 0.12);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.09);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.12);
  --glow:       0 0 28px rgba(8, 145, 178, 0.10);
  --glow-lg:    0 0 60px rgba(8, 145, 178, 0.06);
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-1);
  background-color: var(--bg-1);
  transition: background-color var(--t-med) var(--ease),
              color var(--t-med) var(--ease);
  min-height: 100vh;
  overflow-x: hidden;
}

::selection {
  background: rgba(var(--accent-rgb), 0.25);
  color: var(--text-1);
}

a { color: var(--accent); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: color-mix(in srgb, var(--accent) 80%, white 20%); }

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-1);
}

code, pre, .mono {
  font-family: var(--font-mono);
}

/* ============================================================
   DOT GRID BACKGROUND
   ============================================================ */

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, rgba(var(--accent-rgb), 0.055) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
  transition: opacity var(--t-med);
}

.bg-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(var(--accent-rgb), 0.06) 0%, transparent 60%);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--sm {
  padding: 60px 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::before {
  content: '//';
  opacity: 0.6;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  margin-bottom: 56px;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* ============================================================
   NAVBAR
   ============================================================ */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid var(--border);
  background: rgba(var(--bg-1, 7 12 22), 0.82);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  transition: background var(--t-med), border-color var(--t-med);
}

[data-theme="light"] .navbar {
  background: rgba(244, 247, 251, 0.88);
}

.navbar__inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

/* Logo */
.navbar__logo {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-1);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0;
  transition: color var(--t-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.navbar__logo:hover { color: var(--accent); }

.navbar__logo .bracket { color: var(--accent); }
.navbar__logo .at-sign { color: var(--text-2); }

.logo-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}

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

/* Nav links */
.navbar__links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.navbar__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-2);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background var(--t-fast);
  position: relative;
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.navbar__link.active::before {
  content: '> ';
  opacity: 0.7;
}

/* Actions */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.theme-toggle {
  width: 38px; height: 38px;
  border: 1px solid var(--border-med);
  border-radius: var(--radius);
  background: var(--bg-2);
  color: var(--text-2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
}

.theme-toggle:hover {
  border-color: var(--accent-bdr);
  color: var(--accent);
  box-shadow: var(--glow);
}

.theme-toggle svg { width: 16px; height: 16px; transition: transform var(--t-med) var(--ease); }
.theme-toggle:hover svg { transform: rotate(20deg); }

.icon-sun { display: block; }
.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px; height: 38px;
  background: none;
  border: 1px solid var(--border-med);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 8px;
  transition: border-color var(--t-fast);
}

.nav-hamburger:hover { border-color: var(--accent-bdr); }
.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text-2);
  border-radius: 2px;
  transition: all var(--t-med) var(--ease);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}

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

.nav-mobile .navbar__link {
  font-size: 0.88rem;
  padding: 10px 14px;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 10px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--t-med) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #04070f;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 85%, white 15%);
  color: #04070f;
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.35);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent-bdr);
}

.btn-ghost:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-2);
  border-color: var(--border-med);
}

.btn-secondary:hover {
  color: var(--text-1);
  border-color: var(--accent-bdr);
  background: var(--bg-card-h);
}

.btn svg { width: 15px; height: 15px; }

/* ============================================================
   CARDS
   ============================================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
}

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

/* ============================================================
   HERO SECTION (index.html)
   ============================================================ */

.hero {
  min-height: calc(100vh - var(--nav-h));
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 80px;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* Left column */
.hero__prompt {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero__prompt::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green);
}

.hero__name {
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero__name .accent { color: var(--accent); }

.hero__role {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-2);
  margin-bottom: 24px;
  min-height: 1.8em;
  display: flex;
  align-items: center;
}

.typewriter-text { color: var(--text-2); }
.typewriter-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  animation: blink 0.9s step-end infinite;
  vertical-align: middle;
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero__desc em {
  font-style: normal;
  color: var(--text-1);
  font-style: italic;
}

.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero__social {
  display: flex;
  gap: 10px;
}

.social-link {
  width: 38px; height: 38px;
  border: 1px solid var(--border-med);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--t-med);
}

.social-link:hover {
  border-color: var(--accent-bdr);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.social-link svg { width: 17px; height: 17px; }

/* Right column: Terminal */
.terminal {
  border: 1px solid var(--border-med);
  border-radius: var(--radius-lg);
  background: var(--bg-0);
  box-shadow: var(--shadow-lg), var(--glow-lg);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.terminal__bar {
  height: 38px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 10px;
}

.terminal__dots { display: flex; gap: 6px; }
.terminal__dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.terminal__dot--red    { background: #f87171; }
.terminal__dot--amber  { background: #fbbf24; }
.terminal__dot--green  { background: #4ade80; }

.terminal__title {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-3);
  font-family: var(--font-mono);
}

.terminal__body {
  padding: 18px 20px;
  line-height: 1.85;
}

.t-line { display: block; }
.t-prompt { color: var(--accent); }
.t-cmd { color: var(--text-1); }
.t-comment { color: var(--text-3); }
.t-output { color: var(--text-2); }
.t-ok { color: var(--green); }
.t-err { color: var(--red); }
.t-info { color: var(--amber); }
.t-highlight { color: var(--accent); }
.t-bar-fill { color: var(--green); }
.t-bar-empty { color: var(--text-3); }
.t-blank { display: block; height: 0.6em; }

/* ============================================================
   STATS STRIP
   ============================================================ */

.stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  padding: 36px 0;
}

.stats__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat {
  padding: 8px 32px;
  border-right: 1px solid var(--border);
  text-align: center;
}

.stat:first-child { border-left: none; }
.stat:last-child { border-right: none; }

.stat__value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
  display: block;
}

.stat__label {
  font-size: 0.78rem;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ============================================================
   FEATURED WORK (index.html)
   ============================================================ */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--t-med), box-shadow var(--t-med), transform var(--t-med);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--t-med);
}

.project-card:hover {
  border-color: var(--accent-bdr);
  box-shadow: var(--glow);
  transform: translateY(-3px);
}

.project-card:hover::before { opacity: 1; }

.project-card__category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-bdr);
  border-radius: var(--radius-sm);
  padding: 3px 9px;
  display: inline-block;
  width: fit-content;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-card__category.green {
  color: var(--green);
  background: var(--green-dim);
  border-color: rgba(74, 222, 128, 0.22);
}

.project-card__category.purple {
  color: var(--purple);
  background: rgba(167, 139, 250, 0.08);
  border-color: rgba(167, 139, 250, 0.22);
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-1);
}

.project-card__desc {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

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

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.project-card:hover .tech-tag {
  color: var(--text-2);
  border-color: var(--border-med);
}

.project-card__links {
  display: flex;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: color var(--t-fast);
}

.project-card__link:hover { color: var(--accent); }
.project-card__link svg { width: 13px; height: 13px; }

/* ============================================================
   SKILLS OVERVIEW (index.html)
   ============================================================ */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--t-med), transform var(--t-med), box-shadow var(--t-med);
}

.skill-category-card:hover {
  border-color: var(--accent-bdr);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.skill-category-card__icon {
  width: 42px; height: 42px;
  border-radius: var(--radius);
  background: var(--accent-dim);
  border: 1px solid var(--accent-bdr);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}

.skill-category-card__icon svg { width: 20px; height: 20px; color: var(--accent); }

.skill-category-card__icon.green {
  background: var(--green-dim);
  border-color: rgba(74, 222, 128, 0.22);
}
.skill-category-card__icon.green svg { color: var(--green); }

.skill-category-card__icon.amber {
  background: rgba(251, 191, 36, 0.08);
  border-color: rgba(251, 191, 36, 0.22);
}
.skill-category-card__icon.amber svg { color: var(--amber); }

.skill-category-card__icon.purple {
  background: rgba(167, 139, 250, 0.08);
  border-color: rgba(167, 139, 250, 0.22);
}
.skill-category-card__icon.purple svg { color: var(--purple); }

.skill-category-card__name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 10px;
}

.skill-category-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.skill-category-card__list li {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-2);
  padding: 2px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.skill-category-card__list li::before {
  content: '';
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  flex-shrink: 0;
}

/* ============================================================
   SERVICES TEASER (index.html)
   ============================================================ */

.services-teaser {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
  position: relative;
  overflow: hidden;
}

.services-teaser::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.services-teaser__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.services-teaser__title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 12px;
}

.services-teaser__desc {
  font-size: 0.97rem;
  color: var(--text-2);
  max-width: 520px;
}

/* ============================================================
   LATEST POSTS STRIP (index.html)
   ============================================================ */

.post-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.post-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 20px 26px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
  text-decoration: none;
}

.post-item:last-child { border-bottom: none; }

.post-item:hover { background: var(--bg-card-h); }

.post-item__tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-bdr);
  border-radius: 3px;
  padding: 2px 7px;
  margin-bottom: 6px;
  display: inline-block;
}

.post-item__title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-1);
  transition: color var(--t-fast);
}

.post-item:hover .post-item__title { color: var(--accent); }

.post-item__date {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-3);
  white-space: nowrap;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-0);
  padding: 48px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand { max-width: 280px; }

.footer__logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 12px;
  display: block;
}

.footer__tagline {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer__social { display: flex; gap: 8px; }

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin-bottom: 16px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__link {
  font-size: 0.88rem;
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--t-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer__link::before {
  content: '→';
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity var(--t-fast), transform var(--t-fast);
  transform: translateX(-4px);
}

.footer__link:hover {
  color: var(--accent);
}

.footer__link:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-3);
}

.footer__copy a { color: var(--accent); }

.footer__status {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */

.page-header {
  padding-top: calc(var(--nav-h) + 72px);
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 700px; height: 300px;
  background: radial-gradient(ellipse, rgba(var(--accent-rgb), 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.page-header__breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-3);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-header__breadcrumb a { color: var(--text-2); }
.page-header__breadcrumb a:hover { color: var(--accent); }
.page-header__breadcrumb span { color: var(--text-3); }

.page-header__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-header__title .accent { color: var(--accent); }

.page-header__subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
}

/* ============================================================
   WHOAMI PAGE — AVATAR
   ============================================================ */

.about-hero {
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 80px;
}

.about-hero__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
}

.avatar-wrapper {
  position: relative;
  flex-shrink: 0;
}

.avatar {
  width: 160px; height: 160px;
  border-radius: 50%;
  border: 2px solid var(--accent-bdr);
  object-fit: cover;
  background: var(--bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--glow-lg);
}

.avatar-placeholder {
  width: 160px; height: 160px;
  border-radius: 50%;
  border: 2px solid var(--accent-bdr);
  background: var(--bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--accent);
  box-shadow: var(--glow-lg);
  position: relative;
}

.avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px dashed var(--accent-bdr);
  animation: spin-slow 20s linear infinite;
}

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

.avatar-badge {
  position: absolute;
  bottom: 4px; right: 4px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--bg-1);
  display: flex; align-items: center; justify-content: center;
}

.avatar-badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--bg-0);
}

.about-hero__meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-hero__name {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.about-hero__role {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.about-hero__bio {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 24px;
}

.about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-2);
  background: var(--bg-3);
  border: 1px solid var(--border-med);
  border-radius: var(--radius-sm);
  padding: 4px 11px;
}

/* ============================================================
   WHOAMI — SKILLS MATRIX
   ============================================================ */

.skills-section {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.skill-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--t-med);
}

.skill-block:hover { border-color: var(--border-med); }

.skill-block__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.skill-block__icon {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.skill-block__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-1);
}

.skill-item {
  margin-bottom: 16px;
}

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

.skill-item__header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.skill-item__name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-1);
}

.skill-item__pct {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.skill-bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 9px;
  overflow: hidden;
}

.skill-bar__fill {
  height: 100%;
  border-radius: 9px;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 60%, var(--green) 40%));
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-bar__fill.green {
  background: linear-gradient(90deg, var(--green), color-mix(in srgb, var(--green) 70%, var(--accent) 30%));
}

.skill-bar__fill.amber {
  background: linear-gradient(90deg, var(--amber), color-mix(in srgb, var(--amber) 70%, var(--accent) 30%));
}

/* ============================================================
   WHOAMI — EXPERIENCE TIMELINE
   ============================================================ */

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px; top: 8px; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-bdr), var(--border), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -29px; top: 6px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 2px solid var(--accent-bdr);
  transition: border-color var(--t-med), background var(--t-med);
}

.timeline-item.active::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.5);
}

.timeline-item__date {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-3);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.timeline-item__date .badge {
  font-size: 0.65rem;
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(74, 222, 128, 0.22);
  padding: 2px 7px;
  border-radius: 3px;
}

.timeline-item__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 4px;
}

.timeline-item__org {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 10px;
  font-family: var(--font-mono);
}

.timeline-item__desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ============================================================
   WHOAMI — CERTIFICATIONS
   ============================================================ */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--t-med), transform var(--t-med), box-shadow var(--t-med);
  text-decoration: none;
}

.cert-card:hover {
  border-color: var(--accent-bdr);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.cert-card__issuer {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.cert-card__name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.4;
}

.cert-card__year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cert-card__year::before {
  content: '';
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--green);
}

/* ============================================================
   WHOAMI — PHILOSOPHY QUOTE
   ============================================================ */

.philosophy-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 36px 40px;
  position: relative;
}

.philosophy-block__quote {
  font-family: var(--font-sans);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-1);
  line-height: 1.7;
  margin-bottom: 16px;
}

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

/* ============================================================
   WHOAMI — CONTACT SECTION
   ============================================================ */

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  bottom: -80px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 200px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.contact-card__title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-card__desc {
  font-size: 1rem;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.contact-card__cta {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ============================================================
   ANIMATION UTILITIES
   ============================================================ */

.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in--delay-1 { transition-delay: 0.1s; }
.fade-in--delay-2 { transition-delay: 0.2s; }
.fade-in--delay-3 { transition-delay: 0.3s; }
.fade-in--delay-4 { transition-delay: 0.4s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .hero__inner { gap: 40px; }
  .stats__inner { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(3) { border-left: none; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .work-grid { grid-template-columns: 1fr 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .services-teaser { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 58px; }

  .section { padding: 64px 0; }

  .navbar__links { display: none; }
  .nav-hamburger { display: flex; }

  .hero__inner { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--nav-h) + 40px); }
  .terminal { display: none; }

  .work-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .stats__inner { grid-template-columns: repeat(2, 1fr); }

  .about-hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .skills-section { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr 1fr; }

  .services-teaser { padding: 36px 28px; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .contact-card { padding: 40px 28px; }

  .post-item { grid-template-columns: 1fr; gap: 8px; }
  .post-item__date { display: none; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .grid-2 { grid-template-columns: 1fr; }
  .about-hero { padding-top: calc(var(--nav-h) + 32px); }
}

/* ============================================================
   SCROLLBAR (Webkit)
   ============================================================ */

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb {
  background: var(--bg-3);
  border-radius: 4px;
  border: 2px solid var(--bg-0);
}
::-webkit-scrollbar-thumb:hover { background: var(--border-med); }