/* =========================================================
   Ömer Faruk Aslan — CV Sitesi
   Otomatik dark/light + accent renk değişkenleri
   ========================================================= */

:root {
  --accent: #ff6b35;
  --accent-2: #ff9558;
  --accent-glow: rgba(255, 107, 53, 0.55);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --transition: 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Dark (default) ---------- */
:root,
[data-theme="dark"] {
  --bg: #0a0a14;
  --bg-elev: #11111f;
  --bg-card: rgba(20, 20, 36, 0.55);
  --bg-card-solid: #14141f;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f3f3f7;
  --text-muted: #9a9ab0;
  --text-dim: #6b6b80;
  --shadow-card: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --grid-line: rgba(255, 255, 255, 0.04);
  --hero-overlay: radial-gradient(ellipse at 50% 0%, rgba(124, 92, 255, 0.18), transparent 60%);
}

[data-theme="light"] {
  --bg: #f6f6fb;
  --bg-elev: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-solid: #ffffff;
  --border: rgba(10, 10, 30, 0.08);
  --border-strong: rgba(10, 10, 30, 0.16);
  --text: #0f0f1a;
  --text-muted: #555569;
  --text-dim: #8a8a9a;
  --shadow-card: 0 18px 50px -22px rgba(20, 20, 60, 0.18);
  --grid-line: rgba(10, 10, 30, 0.04);
  --hero-overlay: radial-gradient(ellipse at 50% 0%, rgba(124, 92, 255, 0.14), transparent 60%);
}

/* When auto, follow system */
@media (prefers-color-scheme: light) {
  [data-theme="auto"] {
    --bg: #f6f6fb;
    --bg-elev: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-solid: #ffffff;
    --border: rgba(10, 10, 30, 0.08);
    --border-strong: rgba(10, 10, 30, 0.16);
    --text: #0f0f1a;
    --text-muted: #555569;
    --text-dim: #8a8a9a;
    --shadow-card: 0 18px 50px -22px rgba(20, 20, 60, 0.18);
    --grid-line: rgba(10, 10, 30, 0.04);
    --hero-overlay: radial-gradient(ellipse at 50% 0%, rgba(124, 92, 255, 0.14), transparent 60%);
  }
}

* { box-sizing: border-box; }

/* Modern scrollbar — siteyle uyumlu, ince ve zarif */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}
::-webkit-scrollbar { width: 10px; height: 10px; background: var(--bg); }
::-webkit-scrollbar-button,
::-webkit-scrollbar-button:start,
::-webkit-scrollbar-button:end,
::-webkit-scrollbar-button:vertical:start,
::-webkit-scrollbar-button:vertical:end {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
  background: var(--bg) !important;
}
::-webkit-scrollbar-track,
::-webkit-scrollbar-track-piece {
  background: var(--bg);
  border: none;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  border: 3px solid var(--bg);
  background-clip: padding-box;
  min-height: 60px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  background-clip: padding-box;
}
::-webkit-scrollbar-corner { background: var(--bg); }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--transition), color var(--transition);
  overflow-x: clip;
  max-width: 100%;
}
html { overflow-x: clip; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

/* =========================================================
   NAV — floating pill bar (top, desktop)
   ========================================================= */
.nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  padding: 10px 14px 10px 22px;
  display: flex;
  align-items: center;
  gap: 28px;
  background: rgba(20, 20, 36, 0.78);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  box-shadow: 0 18px 50px -10px rgba(0, 0, 0, 0.5),
              0 0 0 1px rgba(0, 0, 0, 0.2);
  width: min(94vw, 1180px);
  justify-content: space-between;
}
[data-theme="light"] .nav {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(10, 10, 30, 0.08);
  box-shadow: 0 18px 50px -10px rgba(20, 20, 60, 0.18);
}
@media (prefers-color-scheme: light) {
  [data-theme="auto"] .nav {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(10, 10, 30, 0.08);
    box-shadow: 0 18px 50px -10px rgba(20, 20, 60, 0.18);
  }
}
.nav__brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  border-right: 1px solid var(--border);
  padding-right: 14px;
}
.nav__brand span { white-space: nowrap; }
.nav__logo {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 0 18px var(--accent-glow);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.nav__logo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 45%, rgba(255,255,255,0.35) 50%, transparent 55%);
  animation: shimmer 4s linear infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.nav__links {
  display: flex;
  gap: 4px;
  font-size: 13.5px;
  color: var(--text-muted);
  align-items: center;
  flex: 1;
  justify-content: center;
}
.nav__links a {
  position: relative;
  padding: 8px 14px;
  border-radius: 999px;
  transition: all 320ms cubic-bezier(0.22, 1, 0.36, 1);
  white-space: nowrap;
}
.nav__links a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }
.nav__links a.active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}
.nav__links .nav__cv {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  margin-left: 4px;
  font-weight: 600;
}
.nav__links .nav__cv:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.nav__cta {
  display: flex; gap: 6px; align-items: center;
  border-left: 1px solid var(--border);
  padding-left: 10px;
  margin-left: 4px;
}
.theme-toggle, .admin-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
  font-weight: 500;
}
.theme-toggle {
  width: 36px; height: 36px; padding: 0;
  display: grid; place-items: center;
  font-size: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px -4px var(--accent-glow);
}
.theme-toggle:hover {
  filter: brightness(1.1);
  transform: translateY(-1px) rotate(15deg);
  box-shadow: 0 8px 22px -6px var(--accent-glow);
}
.admin-btn {
  background: var(--accent);
  color: #fff;
  padding: 7px 14px;
}
.admin-btn:hover { filter: brightness(1.1); color: #fff; transform: translateY(-1px); }

@media (max-width: 980px) {
  /* Hide top nav entirely on mobile — bottom tab bar replaces it */
  .nav { display: none; }
  /* Reduce hero top padding since there's no header */
  .hero { padding-top: 60px; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 36px 80px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
  z-index: 0;
  pointer-events: none;
}
.hero__content { position: relative; z-index: 2; max-width: 720px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 22px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}
.hero__badge .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: #39ff7a;
  box-shadow: 0 0 12px #39ff7a;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 0 0 18px;
}
.hero__title .grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2) 60%, var(--text));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__role {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.hero__role .typed {
  color: var(--accent);
  border-right: 2px solid var(--accent);
  animation: caret 0.9s steps(1) infinite;
  padding-right: 2px;
}
@keyframes caret { 50% { border-color: transparent; } }

.hero__desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
  font-family: inherit;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 30px -10px var(--accent-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -12px var(--accent-glow);
}
.btn--ghost {
  background: var(--bg-card);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero__stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero__stat {
  display: flex; flex-direction: column;
}
.hero__stat strong {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
}
.hero__stat span {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero__visual {
  position: relative;
  z-index: 1;
  height: 560px;
  width: 100%;
}
#three-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding: 120px 18px 60px; }
  .hero__visual { height: 360px; order: -1; }
}

/* =========================================================
   SECTION COMMON
   ========================================================= */
section.block { position: relative; padding: 100px 36px; z-index: 1; }
@media (max-width: 768px) { section.block { padding: 70px 18px; } }

.block__head {
  max-width: 1280px;
  margin: 0 auto 56px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.block__num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 8px;
  display: block;
}
.block__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0;
}
.block__sub {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0;
}
.block__body { max-width: 1280px; margin: 0 auto; }

/* =========================================================
   ABOUT
   ========================================================= */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}
.about__text p { color: var(--text-muted); margin-bottom: 18px; font-size: 17px; }
.about__text strong { color: var(--text); font-weight: 500; }
.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.about__card h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 16px;
}
.about__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.about__list li { display: flex; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px dashed var(--border); }
.about__list li:last-child { border-bottom: none; padding-bottom: 0; }
.about__list span:first-child { color: var(--text-muted); font-size: 14px; }
.about__list span:last-child { font-weight: 500; }

@media (max-width: 860px) { .about { grid-template-columns: 1fr; } }

/* =========================================================
   SKILLS
   ========================================================= */
.skills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.skill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  backdrop-filter: blur(20px);
  transition: all var(--transition);
}
.skill:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill__head { display: flex; justify-content: space-between; margin-bottom: 14px; }
.skill__name { font-weight: 500; }
.skill__pct { font-family: var(--font-mono); color: var(--accent); font-size: 14px; }
.skill__bar { height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; }
.skill__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  width: 0%;
  transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 12px var(--accent-glow);
}
.skill__meta { font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); margin-top: 10px; }

@media (max-width: 640px) { .skills { grid-template-columns: 1fr; } }

/* =========================================================
   TIMELINE
   ========================================================= */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
}
.tl-item {
  position: relative;
  padding-bottom: 36px;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -34px; top: 8px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}
.tl-date { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-bottom: 6px; }
.tl-title { font-family: var(--font-display); font-size: 20px; margin: 0 0 4px; font-weight: 500; }
.tl-where { color: var(--text-muted); font-size: 14px; margin-bottom: 10px; }
.tl-desc { color: var(--text-muted); font-size: 15px; }

/* =========================================================
   PROJECTS
   ========================================================= */
.projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.project {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: all var(--transition);
}
.project:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 24px 50px -20px var(--accent-glow);
}
.project__cover {
  height: 180px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  position: relative;
  overflow: hidden;
}
.project__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255,255,255,0.4), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0,0,0,0.2), transparent 50%);
}
.project__cover .glyph {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 88px;
  color: rgba(255,255,255,0.16);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 700;
}
.project__body { padding: 22px; }
.project__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 8px;
}
.project__title { font-family: var(--font-display); font-size: 19px; margin: 0 0 8px; font-weight: 500; }
.project__desc { color: var(--text-muted); font-size: 14px; margin: 0 0 14px; }
.project__stack { display: flex; flex-wrap: wrap; gap: 6px; }
.project__stack span {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}

@media (max-width: 1100px) { .projects { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .projects { grid-template-columns: 1fr; } }

/* =========================================================
   CERTS / EDU
   ========================================================= */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.cert-list, .edu-list { display: grid; gap: 14px; }
.cert, .edu {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
}
.cert:hover, .edu:hover { border-color: var(--accent); }
.cert__icon, .edu__icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  flex-shrink: 0;
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
}
.cert__title, .edu__title { font-weight: 500; margin: 0 0 2px; }
.cert__sub, .edu__sub { color: var(--text-muted); font-size: 13px; }

@media (max-width: 860px) { .split-grid { grid-template-columns: 1fr; gap: 40px; } }

/* =========================================================
   BLOG
   ========================================================= */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px;
  backdrop-filter: blur(20px);
  transition: all var(--transition);
  cursor: pointer;
}
.blog-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.blog-card__date { font-family: var(--font-mono); font-size: 11px; color: var(--accent); }
.blog-card__title { font-family: var(--font-display); font-size: 19px; margin: 8px 0 10px; font-weight: 500; line-height: 1.25; }
.blog-card__excerpt { color: var(--text-muted); font-size: 14px; margin: 0 0 16px; }
.blog-card__read { font-family: var(--font-mono); font-size: 12px; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }

@media (max-width: 1100px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .blog-grid { grid-template-columns: 1fr; } }

/* =========================================================
   CONTACT
   ========================================================= */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact__info { }
.contact__info h3 { font-family: var(--font-display); font-size: 28px; margin: 0 0 16px; }
.contact__info p { color: var(--text-muted); margin-bottom: 28px; }
.contact__channels { display: grid; gap: 14px; }
.contact__channel {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  transition: all var(--transition);
}
.contact__channel:hover { border-color: var(--accent); }
.contact__channel .ico {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--accent);
  display: grid; place-items: center;
  color: #fff;
  flex-shrink: 0;
}
.contact__channel span.label { display: block; font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; }
.contact__channel span.val { font-weight: 500; }

.form { display: grid; gap: 14px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form input, .form textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: all var(--transition);
}
.form input:focus, .form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.form textarea { min-height: 140px; resize: vertical; }
.form button { justify-self: start; }

@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } .form__row { grid-template-columns: 1fr; } }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  padding: 40px 36px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}
.footer__social { display: flex; gap: 18px; }
.footer__social a:hover { color: var(--accent); }
@media (max-width: 600px) { .footer { flex-direction: column; gap: 14px; text-align: center; } }

/* =========================================================
   MOBILE TAB BAR (Telegram style) — unified with admin
   ========================================================= */
.mtab {
  display: none;
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 110;
  background: rgba(20, 22, 36, 0.88);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 8px;
  box-shadow: 0 18px 50px -10px rgba(0, 0, 0, 0.6),
              0 0 0 1px rgba(0, 0, 0, 0.25);
  gap: 4px;
  width: calc(100vw - 24px);
  max-width: 520px;
  align-items: center;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.mtab::-webkit-scrollbar { display: none; width: 0; height: 0; }
[data-theme="light"] .mtab {
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(10, 10, 30, 0.08);
  box-shadow: 0 18px 50px -10px rgba(20, 20, 60, 0.18);
}
@media (prefers-color-scheme: light) {
  [data-theme="auto"] .mtab {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(10, 10, 30, 0.08);
    box-shadow: 0 18px 50px -10px rgba(20, 20, 60, 0.18);
  }
}
.mtab__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 320ms cubic-bezier(0.22, 1, 0.36, 1);
  flex: 0 0 auto;
  min-width: 64px;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  scroll-snap-align: center;
}
.mtab__item.active {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  color: var(--accent);
  padding: 9px 12px;
}
.mtab__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1);
}
.mtab__item.active .mtab__icon {
  transform: scale(1.05);
}
/* Theme tweak button — gradient accent like desktop nav */
#mtab-tweak {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px -3px var(--accent-glow) !important;
}
#mtab-tweak .mtab__icon { transform: scale(1.08); color: #fff; }
#mtab-tweak .mtab__label { color: #fff !important; font-weight: 600; }
#mtab-tweak:active { transform: scale(0.94); }
.mtab__label {
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  font-family: var(--font-display);
  white-space: nowrap;
}

@media (max-width: 768px) {
  .mtab {
    display: flex !important;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    width: calc(100vw - 24px);
    max-width: 460px;
  }
  /* Solid bottom gradient mask so content fades out before reaching tab bar */
  body::after {
    content: "";
    position: fixed;
    left: 0; right: 0;
    bottom: 0;
    height: calc(100px + env(safe-area-inset-bottom, 0px));
    background: linear-gradient(to top, var(--bg) 30%, color-mix(in srgb, var(--bg) 90%, transparent) 70%, transparent);
    pointer-events: none;
    z-index: 105;
  }
  .nav__links { display: none; }
  .nav { padding: 12px 16px; }
  body { padding-bottom: calc(180px + env(safe-area-inset-bottom, 0px)) !important; }
  .footer { padding: 30px 20px 24px !important; margin-bottom: 0 !important; }
  .nav__cta .admin-btn { padding: 7px 11px; font-size: 12px; }
  section.block:last-of-type { padding-bottom: 80px !important; }
}
.reveal { opacity: 0; transform: translateY(24px); transition: all 0.9s cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* =========================================================
   MOBILE POLISH — site-wide professional refinements
   ========================================================= */
@media (max-width: 768px) {
  /* Smaller, tighter hero */
  .hero { padding: 60px 18px 50px; gap: 24px; min-height: auto; }
  .hero__title { font-size: clamp(34px, 9vw, 48px) !important; line-height: 1.0; }
  .hero__desc { font-size: 15px; }
  .hero__badge { font-size: 11px; padding: 5px 11px; margin-bottom: 18px; }
  .hero__role { font-size: 13px; }
  .hero__actions { gap: 10px; }
  .btn { padding: 12px 18px; font-size: 13px; }
  .hero__stats {
    margin-top: 32px;
    padding-top: 24px;
    gap: 18px;
    flex-wrap: wrap;
  }
  .hero__stat strong { font-size: 22px; }
  .hero__stat span { font-size: 10px; }
  .hero__visual { height: 260px; }

  /* Sections tighter */
  section.block { padding: 56px 18px; }
  .block__head { margin-bottom: 36px; gap: 16px; }
  .block__title { font-size: clamp(24px, 6vw, 32px); }
  .block__sub { font-size: 14px; }

  /* About */
  .about__card { padding: 22px; }
  .about__text p { font-size: 15px; }

  /* Skills */
  .skill { padding: 18px; }

  /* Timeline */
  .timeline { padding-left: 30px; }
  .tl-item::before { left: -26px; width: 12px; height: 12px; }
  .tl-title { font-size: 17px; }

  /* Projects */
  .project__cover { height: 140px; }
  .project__body { padding: 18px; }
  .project__cover .glyph { font-size: 64px; }

  /* Blog */
  .blog-card { padding: 22px; }

  /* Contact */
  .contact__channel { padding: 12px 14px; }
  .form input, .form textarea { font-size: 16px; /* prevent iOS zoom */ }

  /* Footer */
  .footer { padding: 30px 20px 24px; gap: 12px; font-size: 12px; flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 34px !important; }
  .hero__visual { height: 220px; }
  .hero__stats { gap: 14px; }
  .hero__stat strong { font-size: 20px; }
  .hero__stat { flex: 1; min-width: 80px; }

  section.block { padding: 48px 16px; }
  .block__title { font-size: 24px; }

  .project__cover { height: 120px; }
  .blog-card__title { font-size: 17px; }

  /* Smaller mobile tab bar */
  .mtab { padding: 6px; bottom: 12px; }
  .mtab__item { padding: 8px 8px; min-width: 0; }
  .mtab__item.active { padding: 8px 12px; }
  .mtab__icon { width: 20px; height: 20px; }
  .mtab__label { font-size: 10px; }
}

/* =========================================================
   TOAST
   ========================================================= */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--bg-card-solid);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 14px 18px;
  border-radius: 12px;
  box-shadow: 0 18px 50px -20px var(--accent-glow);
  font-size: 14px;
  z-index: 1000;
  transform: translateX(420px);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s, visibility 0.4s;
}
.toast.show { transform: translateX(0); opacity: 1; visibility: visible; }
@media (max-width: 600px) {
  .toast {
    left: 16px; right: 16px; bottom: 100px;
    transform: translateY(calc(100% + 120px));
    opacity: 0;
    visibility: hidden;
  }
  .toast.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}