/* ═══════════════════════════════════════════════════════════════════════
   ADEDAMOLA ADESILU — Refined Unified Portfolio Architecture
   Warm Obsidian Minimal Base & Fluid Gradient Acceleration
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  /* Default Theme: Deep Obsidian Twilight Terminal Stack */
  --bg: #07070c;
  --surface: #0f0f16;
  --surface-2: #14141f;
  --border: rgba(255, 255, 240, 0.07);
  --border-lt: rgba(255, 255, 240, 0.15);
  --text-pri: #ece9e2;
  --text-muted: #b1aea6;
  --text-faint: #6c6f75;
  --accent: #ff4d6d;
  --accent-dim: #c9184a;
  --accent-glow: rgba(255, 77, 109, 0.12);
  
  --font-body: 'DM Sans', sans-serif;
  --font-serif: 'DM Serif Display', serif;
  --font-mono: 'Intel One Mono', monospace;
  --ease: cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

/* High-Contrast Minimalist Light Lab Scheme Overrides */
body.theme-light {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-2: #f1f3f5;
  --border: rgba(0, 0, 0, 0.06);
  --border-lt: rgba(0, 0, 0, 0.12);
  --text-pri: #1a1a1f;
  --text-muted: #62656a;
  --text-faint: #8e9298;
  --accent-glow: rgba(255, 77, 109, 0.06);
}

/* ── Base Normalization & Layer Topology ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text-pri);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  cursor: none; 
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-lt); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Ambient Micro-Lighting Array */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 20%, rgba(255, 77, 109, 0.06) 0%, rgba(0,0,0,0) 60%),
              radial-gradient(ellipse at 20% 80%, rgba(255, 144, 104, 0.04) 0%, rgba(0,0,0,0) 50%);
  pointer-events: none;
  z-index: -2;
}
body.theme-light .bg-ambient {
  background: radial-gradient(ellipse at 70% 20%, rgba(255, 77, 109, 0.02) 0%, rgba(0,0,0,0) 60%);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}

/* ── Typography & Structural Header Modules ───────────────────────────── */
h1, h2, h3, .nav__logo, .footer__logo-text, .btn-primary {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--text-pri);
  line-height: 1.15;
}

.mono, .section-label, .badge-text, .location-tag span, .contact__item-label, .form__label, .tag {
  font-family: var(--font-mono);
  font-weight: 400;
}

.accent-glow {
  color: var(--accent);
  text-shadow: 0 0 8px rgba(255, 77, 109, 0.4);
}
body.theme-light .accent-glow {
  text-shadow: none;
}

/* ── Interactive Navigation Core ─────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: all 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(7, 7, 12, 0.45);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
body.theme-light .nav.scrolled {
  background: rgba(248, 249, 250, 0.75);
}

.nav__inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav__logo-img-dynamic {
  height: 28px;
  width: 120px; 
  background-image: url('assets/WUTR.png'); 
  background-size: contain;
  background-position: center left;
  background-repeat: no-repeat;
  transition: background-image 0.3s ease, transform 0.3s var(--ease);
}
.nav__logo:hover .nav__logo-img-dynamic {
  transform: scale(1.06);
}
body.theme-light .nav__logo-img-dynamic {
  background-image: url('assets/WUTR-light.png'); 
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.15rem;
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid transparent;
  transition: all 0.25s var(--ease);
}
.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
}
body.theme-light .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.03);
}

.nav__links { display: flex; list-style: none; gap: 40px; margin-right: 40px;}

.nav__link {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: color 0.25s;
  position: relative;
  padding: 4px 0;
  text-decoration: none;
}

.nav__link::after { display: none !important; content: none !important; }
.nav__link:hover { color: var(--text-pri); }

.nav__cta {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #0a0a0f; 
  background: linear-gradient(105deg, #ff3b5c 0%, #ff9068 100%);
  border: none;
  padding: 10px 24px;
  border-radius: 40px;
  text-decoration: none;
  flex-shrink: 0;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  box-shadow: 0 4px 12px rgba(255, 59, 92, 0.2);
}
.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 77, 109, 0.4);
  color: #000000;
}
body.theme-light .nav__cta { color: #ffffff; }
body.theme-light .nav__cta:hover { color: #ffffff; }

.nav__burger {
  display: none; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer;
}
.nav__burger span { display: block; width: 22px; height: 1.5px; background: var(--text-pri); transition: 0.3s var(--ease); }
.nav__burger.open span:first-child { transform: translateY(7.5px) rotate(45deg); }
.nav__burger.open span:last-child { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile {
  display: none; flex-direction: column; background: var(--bg); border-bottom: 1px solid var(--border);
}
.nav__mobile.open { display: flex; }
.nav__mobile-link { color: var(--text-muted); padding: 16px 24px; border-bottom: 1px solid var(--border); text-decoration: none; }

/* ── High-Fidelity Interaction Elements (Buttons) ────────────────────── */
.btn-primary {
  background: linear-gradient(105deg, #ff3b5c 0%, #ff9068 100%);
  border: none; color: #0a0a0f; font-weight: 600;
  padding: 0.9rem 2.2rem; border-radius: 60px; font-size: 0.95rem;
  cursor: pointer; transition: all 0.3s var(--ease);
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  box-shadow: 0 8px 24px rgba(255, 59, 92, 0.2);
}
body.theme-light .btn-primary { color: #ffffff; }
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 77, 109, 0.35);
}
.btn-secondary {
  background: transparent; border: 1px solid var(--border-lt); color: var(--text-pri);
  padding: 0.9rem 2.2rem; border-radius: 60px; font-size: 0.95rem;
  cursor: pointer; transition: all 0.3s var(--ease); display: inline-flex; text-decoration: none;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: rgba(25, 25, 35, 0.05); }
.btn-secondary i { margin-right: 8px; }

/* ── Hero Space Topology & Low-Opacity Artwork Layer ────────────────── */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  position: relative; padding-top: 100px;
}

.hero__graphic-bg {
  position: absolute;
  top: 5%;
  right: 5%;
  width: clamp(320px, 45vw, 620px);
  height: auto;
  pointer-events: none; 
  z-index: 0;
  mix-blend-mode: luminosity; 
  -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 80%);
  mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 80%);
}

.hero__graphic-img {
  width: 100%;
  height: auto;
  opacity: 0.12; 
  display: block;
  transition: opacity 0.4s ease;
}
body.theme-light .hero__graphic-img { opacity: 0.38; }

.hero__content { position: relative; z-index: 3; max-width: 760px; }

.hero__identity-meta {
  display: flex; flex-direction: column; align-items: flex-start; gap: 0.75rem; margin-bottom: 2rem;
}

.hero-badge { display: inline-flex; align-items: center; }

.badge-text {
  background: rgba(25, 25, 35, 0.4); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  padding: 0.4rem 1.2rem; border-radius: 40px; font-size: 0.8rem;
  border: 0.5px solid rgba(255, 77, 109, 0.25); color: #ffb4a2;
  display: inline-flex; align-items: center; min-width: 165px; 
}
body.theme-light .badge-text {
  background: rgba(0, 0, 0, 0.03); border-color: rgba(0, 0, 0, 0.1); color: var(--text-muted);
}

.badge-text::after {
  content: ''; display: inline-block; width: 8px; height: 15px; background-color: #ff9068;
  margin-left: 6px; box-shadow: 0 0 8px rgba(255, 144, 104, 0.6);
  animation: blink-block-cursor 1.1s step-start infinite;
}
body.theme-light .badge-text::after { box-shadow: none; }
@keyframes blink-block-cursor { 50% { opacity: 0; } }

.hero-status-badge { display: inline-flex; align-items: center; gap: 8px; padding: 0.2rem 0.5rem; }
.hero-badge-text { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.14em; color: var(--text-muted); margin: 0; line-height: 1; }
.hero__status-dot {
  width: 6px; height: 6px; border-radius: 50%; background: #5eea8b;
  box-shadow: 0 0 0 0 rgba(94, 234, 139, 0.5); animation: pulse-dot 2.5s infinite; display: inline-block;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(94, 234, 139, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(94, 234, 139, 0); }
  100% { box-shadow: 0 0 0 0 rgba(94, 234, 139, 0); }
}

.hero-title-container { display: flex; flex-direction: column; gap: 0.2rem; margin-top: 1rem; }
.hero-pre-title { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.2em; color: var(--accent); text-transform: uppercase; align-self: flex-start; }
h1.hero-title { font-size: clamp(3.6rem, 8vw, 5.8rem); line-height: 1.05; color: var(--text-pri); margin-bottom: 1.2rem; }
.gradient-name { background: linear-gradient(105deg, #ff3b5c 0%, #ff9068 100%); -webkit-background-clip: text; background-clip: text; color: transparent; display: inline-block; }

.hero-statement {
  font-size: clamp(1.1rem, 2vw, 1.4rem); max-width: 480px; color: var(--text-muted);
  margin: 1.5rem 0 2rem; border-left: 3px solid var(--accent); padding-left: 1.5rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin: 2rem 0; }
.social-links { display: flex; gap: 2rem; margin: 1.5rem 0; z-index: 5; }
.social-links a { color: var(--text-muted); font-size: 1.5rem; transition: all 0.25s; text-decoration: none; }
.social-links a:hover { color: var(--accent); transform: translateY(-3px); }
.location-tag {
  display: inline-flex; align-items: center; gap: 10px; padding: 0.5rem 1.2rem;
  background: var(--surface); border-radius: 48px; border: 1px solid var(--border); font-size: 0.85rem; width: fit-content;
}

/* NEW: Persistent Hero Terminal Hint */
.hero-terminal-hint {
  margin-top: 1.5rem;
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}
.hero-terminal-hint span {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
body.theme-light .hero-terminal-hint span {
  background: rgba(0, 0, 0, 0.03);
}

.hero__right-aside {
  position: absolute; right: 0; bottom: 8%; display: flex; flex-direction: column; align-items: flex-end; gap: 40px; z-index: 5;
}
.hero__stats { display: flex; align-items: center; gap: 36px; }
.hero__stat { display: flex; flex-direction: column; align-items: flex-end; }
.hero__stat-num { font-family: var(--font-serif); font-size: 3rem; color: var(--text-pri); line-height: 1; }
.hero__stat-label { font-family: var(--font-mono); font-size: 10px; color: var(--text-faint); text-transform: uppercase; margin-top: 4px; }
.hero__stat-divider { width: 1px; height: 50px; background: var(--border-lt); }

/* ── About Me Biography & Tabbed Timelines ────────────────────────────── */
.about__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(40px, 6vw, 80px); align-items: start; }
.about__bio { display: flex; flex-direction: column; gap: 1.25rem; }
.about__bio p { font-size: clamp(1rem, 1.5vw, 1.1rem); line-height: 1.75; color: var(--text-muted); }
.about__tabs { display: flex; gap: 0.5rem; margin-bottom: 2.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.75rem; flex-wrap: wrap; }
.about__tab-btn {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: var(--text-faint); background: none; border: none;
  cursor: pointer; padding: 0.5rem 1rem; border-radius: 30px; transition: all 0.3s var(--ease); text-transform: uppercase; letter-spacing: 0.05em;
}
.about__tab-btn:hover { color: var(--text-pri); }
.about__tab-btn.active { color: var(--bg); background: var(--text-pri); }
.about__tab-content { display: none; opacity: 0; transform: translateY(10px); transition: opacity 0.4s ease, transform 0.4s var(--ease); }
.about__tab-content.active { display: block; opacity: 1; transform: translateY(0); }

.timeline { display: flex; flex-direction: column; gap: 2.5rem; position: relative; }
.timeline__item { position: relative; padding-left: 2rem; border-left: 1px solid var(--border-lt); }
.timeline__item::before {
  content: ''; position: absolute; left: -4px; top: 6px; width: 7px; height: 7px; border-radius: 50%;
  background-color: var(--accent); box-shadow: 0 0 8px var(--accent);
}
body.theme-light .timeline__item::before { box-shadow: none; }
.timeline__header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 0.25rem; }
.timeline__header h4 { font-size: 1.15rem; font-weight: 500; color: var(--text-pri); font-family: var(--font-body); line-height: 1.3; }
.timeline__date { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); white-space: nowrap; }
.timeline__meta { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-bottom: 0.75rem; }
.timeline__text { font-size: 0.92rem; line-height: 1.65; color: var(--text-muted); }

/* ── Section Scaffolding Modules ─────────────────────────────────────── */
.section { padding: clamp(80px, 10vw, 140px) 0; border-top: 1px solid var(--border); transition: background-color 0.4s ease; }
.section-header { margin-bottom: 4rem; position: relative; z-index: 1;}
.section-label {
  font-size: 0.75rem; background: var(--accent-glow); display: inline-block;
  padding: 0.3rem 1rem; border-radius: 40px; color: var(--accent); margin-bottom: 1.2rem; border: 1px solid var(--border);
}
.section-sub { color: var(--text-muted); margin-top: 0.6rem; max-width: 580px; }

body.theme-light .work, body.theme-light .tools-matrix { background-color: transparent; position: relative; z-index: 0; }
body.theme-light .work::before, body.theme-light .tools-matrix::before {
  content: ""; position: absolute; top: 0; left: calc(-50vw + 50%); width: 100vw; height: 100%;
  background: linear-gradient(105deg, rgba(255, 59, 92, 0.03) 0%, rgba(255, 144, 104, 0.04) 100%);
  z-index: -1; border-top: 1px solid rgba(255, 77, 109, 0.08); border-bottom: 1px solid rgba(255, 144, 104, 0.08); pointer-events: none;
}

/* ── Case Grid Architecture (Work Section) ───────────────────────────── */
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; position: relative; z-index: 1;}
.work-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 24px;
  padding: 44px 40px; display: flex; flex-direction: column; gap: 16px;
  transition: all 0.3s var(--ease); cursor: pointer; position: relative; overflow: hidden;
}
.work-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  transform: scaleX(0); transition: transform 0.4s var(--ease);
}
.work-card:hover { background: var(--surface-2); border-color: var(--accent-dim); transform: translateY(-4px); }
.work-card:hover::before { transform: scaleX(1); }
.work-card__index { font-size: 11px; color: var(--text-faint); }
.work-card__title { font-size: 1.75rem; color: var(--text-pri); }
.work-card__outcome { font-size: 0.95rem; color: var(--text-muted); flex: 1; line-height: 1.7; }
.work-card__tags, .project-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 10px; color: var(--text-faint); border: 1px solid var(--border); padding: 4px 10px; border-radius: 4px; }
.work-card:hover .tag { border-color: var(--border-lt); color: var(--text-muted); }
.work-card__link { font-family: var(--font-mono); font-size: 11px; color: var(--accent); text-transform: uppercase; margin-top: 8px; display: inline-flex; align-items: center; gap: 6px; }
.work-card__link::after { content: '→'; transition: transform 0.25s; }
.work-card:hover .work-card__link::after { transform: translateX(6px); }

/* ── API Data Matrix Grid (Projects) ─────────────────────────────────── */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  display: flex; flex-direction: column; overflow: hidden; transition: all 0.3s var(--ease); position: relative;
}
.project-card:hover { border-color: var(--accent-dim); background: var(--surface-2); transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.15); }
body:not(.theme-light) .project-card:hover { box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.project-card__media-wrapper { position: relative; width: 100%; padding-top: 56.25%; background: #0b0b10; border-bottom: 1px solid var(--border); overflow: hidden; }
.project-card__image { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; transition: transform 0.5s var(--ease); z-index: 2; }
.project-card:hover .project-card__image { transform: scale(1.04); }

.project-card__code-placeholder {
  position: absolute; inset: 0; background: var(--surface);
  background-image: radial-gradient(rgba(255, 122, 69, 0.03) 1px, transparent 0); background-size: 16px 16px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: var(--text-faint); z-index: 1;
}
.project-card__code-placeholder i { font-size: 24px; color: var(--accent-dim); opacity: 0.6; }
.project-card__code-placeholder span { font-family: var(--font-mono); font-size: 11px; text-transform: lowercase; letter-spacing: 0.05em; opacity: 0.8; }

.project-card__overlay {
  position: absolute; inset: 0; background: rgba(7, 7, 12, 0.65); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 4;
}
body.theme-light .project-card__overlay {
  background: rgba(255, 255, 255, 0.7);
}
.project-card:hover .project-card__overlay { opacity: 1; pointer-events: auto; }
.project-card__action-pills { display: flex; gap: 12px; padding: 0 16px; width: 100%; justify-content: center; transform: translateY(8px); transition: transform 0.35s var(--ease); }
.project-card:hover .project-card__action-pills { transform: translateY(0); }
.pill-btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 50px; font-family: var(--font-body); font-size: 13px; font-weight: 600; text-decoration: none; white-space: nowrap; transition: transform 0.2s ease, filter 0.2s ease; }
.pill-btn i { font-size: 14px; }
.pill-btn--github { background: #ffffff; color: #0a0a0f; }
body.theme-light .pill-btn--github { background: #1a1a1f; color: #ffffff; }
.pill-btn--demo { background: #ffffff; color: #000000; border: 1px solid rgba(0, 0, 0, 0.1); }
body:not(.theme-light) .pill-btn--demo { background: #000000; color: #ffffff; border: 1px solid rgba(255, 255, 255, 0.15); }
.pill-btn:hover { transform: scale(1.05); filter: brightness(1.1); }

.project-card__content { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project-card__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.project-card__name { font-size: 1.2rem; font-weight: 500; color: var(--text-pri); font-family: var(--font-serif); margin: 0; }
.project-card__badges { display: flex; align-items: center; gap: 6px; }
.project-card__type { font-family: var(--font-mono); font-size: 9px; color: var(--accent); border: 1px solid rgba(255, 77, 109, 0.25); padding: 3px 8px; border-radius: 4px; background: var(--accent-glow); text-transform: uppercase; }
.project-card__status-tag { font-family: var(--font-mono); font-size: 9px; font-weight: 500; color: #ffb703; background: rgba(255, 183, 3, 0.1); border: 1px solid rgba(255, 183, 3, 0.25); padding: 3px 8px; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.project-card__desc { font-size: 0.88rem; color: var(--text-muted); flex: 1; line-height: 1.6; margin: 0; }

.skeleton-card { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; display: flex; flex-direction: column; overflow: hidden; padding-bottom: 24px; }
.skeleton-media { width: 100%; padding-top: 56.25%; background: var(--border); animation: skeleton-glow 1.5s infinite ease-in-out; }
.skeleton-body { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.skeleton-line { background: var(--border); border-radius: 4px; animation: skeleton-glow 1.5s infinite ease-in-out; }
.skeleton-title { width: 45%; height: 16px; }
.skeleton-text { width: 85%; height: 12px; }

@keyframes skeleton-glow { 0% { opacity: 0.4; } 50% { opacity: 0.8; } 100% { opacity: 0.4; } }

/* ── Tools & Technical Level Matrix Section Styles ──────────────────── */
.tools-matrix { background: transparent; }
.tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; position: relative; z-index: 1; }
.tools-grid .tools-card:nth-child(3) { grid-column: span 2; }
.tools-card { background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 36px; display: flex; flex-direction: column; gap: 28px; transition: all 0.3s var(--ease); }
.tools-card:hover { border-color: var(--border-lt); background: var(--surface-2); transform: translateY(-2px); }
.tools-card__header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tools-card__header h3 { font-family: var(--font-serif); font-size: 1.4rem; color: var(--text-pri); font-weight: 400; margin: 0; }
.tools-badge { font-family: var(--font-mono); font-size: 10px; font-weight: 500; padding: 4px 12px; border-radius: 40px; text-transform: lowercase; }
.tools-badge--primary { color: #ffb703; background: rgba(255, 183, 3, 0.08); border: 1px solid rgba(255, 183, 3, 0.2); }
.tools-badge--secondary { color: #ff9068; background: rgba(255, 144, 104, 0.08); border: 1px solid rgba(255, 144, 104, 0.2); }
.tools-badge--future { color: var(--text-faint); background: rgba(0, 0, 0, 0.03); border: 1px solid var(--border); }
body:not(.theme-light) .tools-badge--future { background: rgba(255, 255, 255, 0.03); }
.tools-list { display: flex; flex-wrap: wrap; gap: 24px clamp(16px, 3vw, 32px); }

.tool-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-width: 76px; text-align: center; position: relative; }
.tool-item::after {
  content: attr(data-tooltip); position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(4px); background: var(--surface); border: 1px solid var(--border-lt); color: var(--text-pri); font-family: var(--font-mono); font-size: 9px; font-weight: 400; padding: 4px 10px; border-radius: 6px; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s var(--ease), transform 0.2s var(--ease); z-index: 50; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}
body:not(.theme-light) .tool-item::after { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.6); }
.tool-item:hover::after { opacity: 1; transform: translateX(-50%) translateY(0); }
.local-tool-svg { width: 32px; height: 32px; object-fit: contain; display: block; transition: transform 0.25s var(--ease); }
.tool-item i { font-size: 28px; width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; transition: transform 0.25s var(--ease); }
.tool-item:hover .local-tool-svg, .tool-item:hover i { transform: scale(1.1); }
.tool-text-icon { font-family: var(--font-body); font-weight: 600; font-size: 18px; color: var(--text-pri); width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; line-height: 1; }
.arduino-icon { background: #00979d; color: #ffffff; font-size: 16px; border-radius: 50%; }
.uipath-icon { background: #fa4616; color: #ffffff; font-size: 13px; font-weight: 800; border-radius: 6px; }
.tool-item span:not(.tool-text-icon) { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

/* ── Capabilities Matrix Module (Services) ────────────────────────────── */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card { background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 40px 36px; display: flex; flex-direction: column; gap: 20px; transition: background 0.3s; position: relative; overflow: hidden; }
.service-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform 0.35s var(--ease); }
.service-card:hover { background: var(--surface-2); }
.service-card:hover::after { transform: scaleX(1); }
.service-card__num { font-size: 11px; color: var(--text-faint); }
.service-card__icon { width: 44px; height: 44px; border: 1px solid var(--border-lt); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--accent); }
.service-card__icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.service-card__title { font-size: 1.4rem; color: var(--text-pri); }
.service-card__desc { font-size: 0.85rem; color: var(--text-muted); flex: 1; }
.service-card__list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.service-card__list li { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); display: flex; align-items: center; gap: 10px; }
.service-card__list li::before { content: ''; width: 12px; height: 1px; background: var(--border-lt); }
.service-card:hover .service-card__list li { color: var(--text-muted); }

/* ── Contact Terminal Pipeline ───────────────────────────────────────── */
.contact__inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 100px); align-items: start; }
.contact__intro { font-size: 0.95rem; color: var(--text-muted); margin-top: 1rem; margin-bottom: 2rem; }
.contact__details { display: flex; flex-direction: column; gap: 8px; margin-bottom: 2rem; }
.contact__item { display: flex; align-items: center; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--border); text-decoration: none; transition: padding-left 0.25s var(--ease); }
.contact__item:hover { padding-left: 6px; border-bottom-color: var(--accent-dim); }
.contact__item-icon { width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--accent); }
.contact__item-label { display: block; font-size: 10px; color: var(--text-faint); text-transform: uppercase; }
.contact__item-value { display: block; font-size: 14px; color: var(--text-pri); margin-top: 2px; }
.contact__form { display: flex; flex-direction: column; gap: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: clamp(24px, 4vw, 44px); }
.form__group { display: flex; flex-direction: column; gap: 6px; }
.form__label { font-size: 10px; text-transform: uppercase; color: var(--text-faint); letter-spacing: 0.08em; }
.form__input { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text-pri); font-family: var(--font-body); font-size: 14px; padding: 14px 16px; outline: none; transition: border-color 0.25s; width: 100%; }
.form__input:focus { border-color: var(--accent); }
.form__textarea { resize: vertical; min-height: 120px; }
.form__submit { width: 100%; justify-content: center; }
.form__note { font-family: var(--font-mono); font-size: 11px; text-align: center; min-height: 18px; }
.form__note.success { color: #4ade80; }
.form__note.error { color: #f87171; }

/* ── Foot Structure Node ──────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 4rem; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer__logo-text { font-family: var(--font-serif); font-size: 1.35rem; color: var(--text-pri); text-decoration: none; letter-spacing: -0.01em; display: inline-flex; align-items: center; gap: 6px; transition: color 0.25s ease; }
.footer__logo-text:hover { color: var(--text-pri); }
.footer__logo-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: linear-gradient(135deg, #ff3b5c 0%, #ff9068 100%); box-shadow: 0 0 10px rgba(255, 59, 92, 0.6); transform: translateY(2px); transition: transform 0.3s ease; }
body.theme-light .footer__logo-dot { box-shadow: none; }
.footer__logo-text:hover .footer__logo-dot { transform: translateY(2px) scale(1.2); }
.footer__copy { font-size: 12px; color: var(--text-faint); }
.footer__socials { display: flex; gap: 16px; align-items: center; }
.footer__socials .social-link { text-decoration: none; color: var(--text-muted); font-size: 1.3rem; transition: color 0.25s, transform 0.25s; }
.footer__socials .social-link:hover { color: var(--accent); transform: translateY(-2px); }

/* ── Micro-Engine Scroll Animations ──────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Custom Fluid Cursor Architecture ── */
body { cursor: none; }

/* ── NEW FEATURES ─────────────────────────────────────────────────────────── */

/* ── Reading Progress Bar ─────────────────────────────────────────────────── */
.reading-progress {
  position: fixed; top: 0; left: 0; width: 0%; height: 2px;
  background: linear-gradient(90deg, var(--accent), #ff9068);
  z-index: 99998; transition: width 0.05s linear; pointer-events: none;
  box-shadow: 0 0 8px rgba(255, 61, 107, 0.6);
}

/* ── Currently Building Ticker ────────────────────────────────────────────── */
.building-ticker {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 10px; padding: 6px 14px;
  background: rgba(255, 61, 107, 0.06); border: 1px solid rgba(255, 61, 107, 0.18); border-radius: 100px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; max-width: fit-content;
}
.building-ticker__label { color: var(--accent); font-weight: 500; white-space: nowrap; display: inline-flex; align-items: center; gap: 5px; }
.building-ticker__label i { font-size: 10px; }
.building-ticker__track { overflow: hidden; max-width: 220px; }
.building-ticker__item { display: inline-block; color: var(--text-muted); white-space: nowrap; transition: opacity 0.3s ease, transform 0.3s ease; }


/* ── GitHub Activity Heatmap (CSS Grid Version) ───────────────────────────── */
.heatmap-wrapper {
  display: flex;
  flex-direction: column;
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-lt) transparent;
}
.heatmap-loading { color: var(--text-muted); font-size: 13px; padding: 20px 0; }

.heatmap-months {
  display: flex;
  margin-left: 32px; /* 24px for day labels + 8px gap */
  margin-bottom: 6px;
}
.heatmap-month-label {
  font-size: 10px;
  color: var(--text-muted);
  text-align: left;
}
.heatmap-body {
  display: flex;
  gap: 8px;
}
.heatmap-day-labels {
  display: grid;
  grid-template-rows: repeat(7, 12px);
  gap: 3px;
  font-size: 9px;
  color: var(--text-muted);
  align-items: center;
  line-height: 1;
  width: 24px;
}
.heatmap-grid-inner {
  display: grid;
  grid-template-rows: repeat(7, 12px);
  grid-auto-flow: column;
  gap: 3px;
}
.heatmap-cell {
  width: 12px; height: 12px; border-radius: 2px; cursor: default;
  transition: transform 0.1s ease, outline 0.1s ease;
}
.heatmap-cell:hover {
  transform: scale(1.4); outline: 1px solid rgba(255, 255, 255, 0.3); z-index: 10; position: relative;
}

.heatmap-cell--empty { background: transparent; pointer-events: none; }
.heatmap-cell--0     { background: rgba(255, 255, 255, 0.06); }
.heatmap-cell--1     { background: rgba(255, 61, 107, 0.20); }
.heatmap-cell--2     { background: rgba(255, 61, 107, 0.42); }
.heatmap-cell--3     { background: rgba(255, 61, 107, 0.68); }
.heatmap-cell--4     { background: rgba(255, 61, 107, 0.95); box-shadow: 0 0 4px rgba(255, 61, 107, 0.5); }

.heatmap-legend { display: flex; align-items: center; gap: 6px; margin-top: 12px; }
.heatmap-legend__label { font-size: 10px; color: var(--text-muted); }
.heatmap-legend__cells { display: flex; gap: 3px; }
.theme-light .heatmap-cell--0 { background: rgba(0, 0, 0, 0.07); }

/* ── Terminal Easter Egg Overlay ─────────────────────────────────────────── */
.terminal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.75); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  z-index: 999999; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.25s ease;
}
.terminal-overlay--open { opacity: 1; pointer-events: all; }
.terminal-window {
  width: 100%; max-width: 680px; background: #0d0d0f; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 12px;
  overflow: hidden; box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 61, 107, 0.15); transform: scale(0.94) translateY(12px); transition: transform 0.25s cubic-bezier(0.23, 1, 0.32, 1);
}
.terminal-overlay--open .terminal-window { transform: scale(1) translateY(0); }
.terminal-window__header { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: rgba(255, 255, 255, 0.04); border-bottom: 1px solid rgba(255, 255, 255, 0.07); user-select: none; }
.terminal-window__dots { display: flex; gap: 6px; }
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #ffbd2e; }
.dot--green  { background: #28c840; }
.terminal-window__title { flex: 1; text-align: center; font-size: 12px; color: var(--text-muted); letter-spacing: 0.04em; }
.terminal-window__close { background: none; border: none; color: var(--text-muted); font-size: 13px; cursor: pointer; padding: 2px 6px; border-radius: 4px; transition: color 0.2s, background 0.2s; line-height: 1; }
.terminal-window__close:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.terminal-window__body { height: 320px; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 4px; scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.1) transparent; }
.terminal-line { font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; white-space: pre; }
.terminal-line--welcome { color: var(--text-muted); margin-bottom: 8px; }
.terminal-line--cmd     { margin-top: 10px; }
.out--label   { color: #fff; font-weight: 500; margin-top: 4px; }
.out--info    { color: #b0b0c0; }
.out--dim     { color: #606070; }
.out--accent  { color: var(--accent); }
.out--error   { color: #ff5f57; }
.terminal-window__input-row { display: flex; align-items: center; gap: 10px; padding: 10px 16px; border-top: 1px solid rgba(255, 255, 255, 0.07); background: rgba(255, 255, 255, 0.02); }
.terminal-prompt { color: var(--accent); font-size: 12px; white-space: nowrap; flex-shrink: 0; }
.terminal-input { flex: 1; background: none; border: none; outline: none; color: #e0e0e8; font-size: 12.5px; caret-color: var(--accent); }
.terminal-input::placeholder { color: rgba(255, 255, 255, 0.2); }

/* ── Media Screen Breakpoints ────────────────────────────────────────── */
@media (max-width: 960px) {
  .about__grid { grid-template-columns: 1fr; gap: 50px; }
  .work-grid { grid-template-columns: 1fr; }
  .projects-grid, .services-grid, .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .tools-grid .tools-card:nth-child(3) { grid-column: span 2; }
  .contact__inner { grid-template-columns: 1fr; }
  .hero__right-aside { position: static; width: 100%; margin-top: 40px; align-items: flex-start; }
  .hero__stats { gap: 24px; }
  .hero__graphic-bg { display: none; } 
  .nav__links, .nav__actions, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  body { cursor: auto; }
  
  .heatmap-cell { width: 10px; height: 10px; }
  .terminal-window { max-width: 100%; border-radius: 8px; }
  .terminal-window__body { height: 260px; }
  .building-ticker__track { max-width: 160px; }
}
@media (max-width: 720px) {
  .projects-grid, .services-grid, .tools-grid { grid-template-columns: 1fr; }
  .tools-grid .tools-card:nth-child(3) { grid-column: span 1; }
}
@media (max-width: 640px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn-primary, .hero-cta .btn-secondary { width: 100%; justify-content: center; }
  .hero__stats { flex-direction: column; align-items: flex-start; }
  .hero__stat-divider { display: none; }
  .tools-list { justify-content: space-between; gap: 20px 12px; }
  .tool-item { min-width: 68px; }
  .footer__inner { flex-direction: column; text-align: center; gap: 24px; }
}