/* =========================================================
   Monir Hossain — Portfolio
   Modern mobile-developer theme · dark-first, fully themeable
   ========================================================= */

:root {
  /* palette */
  --bg: #07070b;
  --bg-2: #0b0b12;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --surface-solid: #11111b;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text: #ecedf5;
  --text-dim: #a6a7be;
  --text-faint: #6f7088;

  /* accents — Android green + Kotlin purple + cyan */
  --green: #3ddc84;
  --cyan: #22d3ee;
  --purple: #a855f7;
  --pink: #ec4899;
  --blue: #5b8cff;

  --grad-text: linear-gradient(110deg, #3ddc84 0%, #22d3ee 45%, #a855f7 100%);
  --grad-brand: linear-gradient(135deg, #3ddc84, #22d3ee);
  --grad-warm: linear-gradient(135deg, #a855f7, #ec4899);

  --glow-green: 0 0 0 1px rgba(61, 220, 132, 0.4), 0 10px 40px -8px rgba(61, 220, 132, 0.45);
  --shadow-sm: 0 4px 18px -8px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 22px 60px -28px rgba(0, 0, 0, 0.85);

  --radius: 18px;
  --radius-lg: 26px;
  --maxw: 1140px;

  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Light theme overrides */
[data-theme="light"] {
  --bg: #f3f5fa;
  --bg-2: #e9edf6;
  --surface: rgba(255, 255, 255, 0.7);
  --surface-2: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: rgba(15, 23, 42, 0.18);
  --text: #141627;
  --text-dim: #4a4d66;
  --text-faint: #7c7f96;
  --shadow-md: 0 24px 60px -30px rgba(20, 30, 60, 0.4);
  /* deeper, higher-contrast accents so colorful text reads on a light bg */
  --green: #0a8f4d;
  --grad-text: linear-gradient(110deg, #0a8f4d 0%, #0891b2 45%, #7c3aed 100%);
}

/* ---------- base ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; font-weight: 600; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; }

::selection { background: rgba(61, 220, 132, 0.3); color: #fff; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- background decoration ---------- */
.bg-grid,
.bg-blobs,
#particles {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.bg-grid {
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: 0.6;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}
.blob--green  { width: 46vw; height: 46vw; left: -10vw; top: -8vw;  background: radial-gradient(circle, #3ddc84, transparent 65%); animation: float1 18s ease-in-out infinite; }
.blob--purple { width: 42vw; height: 42vw; right: -12vw; top: 12vh; background: radial-gradient(circle, #a855f7, transparent 65%); animation: float2 22s ease-in-out infinite; }
.blob--cyan   { width: 38vw; height: 38vw; left: 25vw; bottom: -14vw; background: radial-gradient(circle, #22d3ee, transparent 65%); animation: float3 26s ease-in-out infinite; }
[data-theme="light"] .blob { opacity: 0.28; }

@keyframes float1 { 50% { transform: translate(8vw, 6vh) scale(1.1); } }
@keyframes float2 { 50% { transform: translate(-6vw, 8vh) scale(1.08); } }
@keyframes float3 { 50% { transform: translate(5vw, -6vh) scale(1.12); } }

#particles { z-index: -1; opacity: 0.55; }

/* ---------- custom cursor glow ---------- */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 220, 132, 0.13), transparent 65%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.4s ease;
}
@media (hover: hover) and (pointer: fine) {
  .cursor-glow.active { opacity: 1; }
}

/* ---------- scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 200;
  background: transparent;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad-brand);
  box-shadow: 0 0 12px rgba(61, 220, 132, 0.7);
}

/* ---------- navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: all 0.35s var(--ease);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav.scrolled .nav__inner {
  margin: 0.6rem auto;
  padding: 0.7rem 1.5rem;
  max-width: calc(var(--maxw) - 60px);
  background: color-mix(in srgb, var(--bg-2) 78%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 100px;
  box-shadow: var(--shadow-md);
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
}
.logo__bracket { color: var(--green); }

.nav__links { display: flex; gap: 2rem; }
.nav__links a {
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.25s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--grad-brand);
  border-radius: 2px;
  transition: width 0.3s var(--ease);
}
.nav__links a:hover,
.nav__links a.active { color: var(--text); }
.nav__links a:hover::after,
.nav__links a.active::after { width: 100%; }

.nav__actions { display: flex; align-items: center; gap: 0.8rem; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.25s;
}
.theme-toggle:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.28s var(--ease);
  white-space: nowrap;
}
.btn svg { transition: transform 0.28s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--primary {
  background: var(--grad-brand);
  color: #04130a;
  box-shadow: 0 10px 30px -10px rgba(61, 220, 132, 0.6);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -12px rgba(61, 220, 132, 0.75); }

.btn--ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-3px); }

.btn--outline {
  background: transparent;
  border: 1px solid var(--green);
  color: var(--green);
}
.btn--outline:hover {
  background: rgba(61, 220, 132, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -14px rgba(61, 220, 132, 0.6);
}
/* download icon bounces down instead of sliding right */
.btn--outline:hover svg { transform: translateY(3px); }

.btn--lg { padding: 0.95rem 2rem; font-size: 1.05rem; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px; height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav__burger span {
  width: 20px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s var(--ease);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- layout helpers ---------- */
main { display: block; }

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

.section__head { margin-bottom: 3rem; }
.section__index {
  font-family: var(--font-mono);
  color: var(--green);
  font-size: 0.9rem;
  letter-spacing: 2px;
}
.section__title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0.4rem 0 0;
}
.section__sub {
  color: var(--text-dim);
  max-width: 540px;
  margin: 0.8rem 0 0;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 100vh;
  padding: 8rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 3rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.45rem 1rem;
  border-radius: 100px;
  margin: 0 0 1.4rem;
}
.hero__eyebrow .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(61, 220, 132, 0); }
  100% { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0); }
}

.hero__title {
  font-size: clamp(2.4rem, 6.5vw, 4.2rem);
  margin: 0 0 0.4rem;
  font-weight: 700;
  letter-spacing: -1px;
}
.hero__role {
  font-size: clamp(1.4rem, 3.5vw, 2.2rem);
  font-weight: 600;
  margin: 0 0 1.4rem;
  color: var(--text);
  min-height: 1.4em;
}
.hero__role-static { color: var(--text-dim); font-weight: 500; }
.typewriter { color: var(--green); }
.caret {
  color: var(--green);
  font-weight: 300;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__desc {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 540px;
  margin: 0 0 2rem;
}
.hero__desc strong { color: var(--text); }
.hero__desc .kw {
  color: var(--green);
  font-weight: 600;
  white-space: nowrap;
}

.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.8rem; }

.hero__stats {
  display: flex;
  gap: 2.4rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat__num {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.stat__label { color: var(--text-faint); font-size: 0.85rem; margin-top: 0.3rem; }

/* phone mockup */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  perspective: 1200px;
}
.phone {
  position: relative;
  width: 290px;
  height: 600px;
  border-radius: 44px;
  background: linear-gradient(160deg, #1b1c28, #0d0e16);
  border: 1px solid var(--border-strong);
  padding: 12px;
  box-shadow:
    0 50px 90px -40px rgba(0, 0, 0, 0.9),
    inset 0 0 0 2px rgba(255, 255, 255, 0.04);
  transform-style: preserve-3d;
  transition: transform 0.25s var(--ease);
  will-change: transform;
}
.phone__glow {
  position: absolute;
  inset: -2px;
  border-radius: 46px;
  background: var(--grad-text);
  opacity: 0.5;
  filter: blur(28px);
  z-index: -1;
}
.phone__notch {
  position: absolute;
  top: 14px; left: 50%;
  transform: translateX(-50%);
  width: 110px; height: 22px;
  background: #05050a;
  border-radius: 0 0 16px 16px;
  z-index: 3;
}
.phone__screen {
  height: 100%;
  border-radius: 34px;
  background: linear-gradient(180deg, #0c0d15 0%, #11121d 100%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 2.6rem 1.2rem 1.4rem;
  position: relative;
}
.app-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #dfe2ee;
  margin-bottom: 1.4rem;
}
.app-status__icons { display: flex; gap: 5px; align-items: center; }

.app-profile { text-align: center; }
.app-avatar {
  position: relative;
  width: 92px; height: 92px;
  margin: 0 auto 0.9rem;
}
.app-avatar img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #0c0d15;
  position: relative;
  z-index: 2;
  background: #fff;
}
.app-avatar__ring {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #3ddc84, #22d3ee, #a855f7, #3ddc84);
  animation: spin 5s linear infinite;
  z-index: 1;
}
@keyframes spin { to { transform: rotate(360deg); } }
.app-profile h3 { font-size: 1.1rem; margin: 0; color: #fff; }
.app-profile p { font-size: 0.8rem; color: #9da0b8; margin: 0.2rem 0 0; }

.app-metrics {
  display: flex;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 0.8rem 0.4rem;
  margin: 1.4rem 0;
}
.app-metrics div { text-align: center; }
.app-metrics b {
  display: block;
  font-family: var(--font-head);
  font-size: 1.15rem;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.app-metrics span { font-size: 0.65rem; color: #8a8da6; }

.app-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  margin-bottom: auto;
}
.app-chips span {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: #b9e9cd;
  background: rgba(61, 220, 132, 0.1);
  border: 1px solid rgba(61, 220, 132, 0.25);
  padding: 0.25rem 0.6rem;
  border-radius: 100px;
}
.app-cta {
  display: block;
  text-align: center;
  background: var(--grad-brand);
  color: #04130a;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem;
  border-radius: 14px;
  margin-top: 1rem;
}

.float-badge {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  background: color-mix(in srgb, var(--surface-solid) 80%, transparent);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  padding: 0.55rem 0.9rem;
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.float-badge--1 { top: 12%; left: -4%;  color: var(--green);  animation: bob 6s ease-in-out infinite; }
.float-badge--2 { top: 42%; right: -8%; color: var(--cyan);   animation: bob 7s ease-in-out infinite 0.6s; }
.float-badge--3 { bottom: 12%; left: 2%; color: var(--purple); animation: bob 5.5s ease-in-out infinite 1.2s; }
.float-badge--4 { bottom: 30%; right: -4%; color: var(--pink); animation: bob 6.5s ease-in-out infinite 0.3s; }
/* deeper cyan so the Compose badge reads on a light bg */
[data-theme="light"] .float-badge--2 { color: #0891b2; }
@keyframes bob { 50% { transform: translateY(-14px); } }

.scroll-hint {
  position: absolute;
  bottom: 1.5rem; left: 50%;
  transform: translateX(-50%);
}
.mouse {
  display: block;
  width: 24px; height: 38px;
  border: 2px solid var(--text-faint);
  border-radius: 14px;
  position: relative;
}
.mouse span {
  position: absolute;
  top: 7px; left: 50%;
  width: 4px; height: 7px;
  margin-left: -2px;
  background: var(--green);
  border-radius: 4px;
  animation: scrolldot 1.6s infinite;
}
@keyframes scrolldot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translateY(12px); } }

/* ---------- about ---------- */
.about {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: start;
}
.about__text p { color: var(--text-dim); margin: 0 0 1.2rem; }
.about__text strong { color: var(--text); font-weight: 600; }

.terminal {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0a0b12;
  box-shadow: var(--shadow-md);
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.7rem 1rem;
  background: #14151f;
  border-bottom: 1px solid var(--border);
}
.terminal__bar span { width: 11px; height: 11px; border-radius: 50%; }
.terminal__bar span:nth-child(1) { background: #ff5f57; }
.terminal__bar span:nth-child(2) { background: #febc2e; }
.terminal__bar span:nth-child(3) { background: #28c840; }
.terminal__bar em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-left: auto;
}
.terminal__body {
  margin: 0;
  padding: 1.3rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.85;
  color: #cdd0e0;
  overflow-x: auto;
}
.t-key  { color: #c084fc; }
.t-type { color: #4fd1c5; }
.t-str  { color: #3ddc84; }
.t-fn   { color: #22d3ee; }

/* ---------- skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.skill-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(61, 220, 132, 0.1), transparent 45%);
  opacity: 0;
  transition: opacity 0.3s;
}
.skill-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}
.skill-card:hover::before { opacity: 1; }
.skill-card__icon {
  font-size: 1.8rem;
  width: 54px; height: 54px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}
.skill-card h3 { font-size: 1.2rem; margin: 0 0 1rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  transition: all 0.2s;
}
.tags span:hover { color: var(--green); border-color: var(--green); transform: translateY(-2px); }

/* ---------- timeline ---------- */
.timeline {
  position: relative;
  padding-left: 2.2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--green), var(--purple), transparent);
}
.tl-item { position: relative; margin-bottom: 2rem; }
.tl-dot {
  position: absolute;
  left: -2.2rem;
  top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--green);
  box-shadow: 0 0 0 4px rgba(61, 220, 132, 0.12);
}
.tl-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
  transition: transform 0.25s var(--ease), border-color 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.tl-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.tl-card__head {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}
.tl-card__head img {
  width: 52px; height: 52px;
  border-radius: 13px;
  object-fit: cover;
  background: #fff;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.tl-card__head h3 { font-size: 1.15rem; margin: 0; }
.tl-company { color: var(--text-dim); font-size: 0.9rem; margin: 0.2rem 0 0; }
.tl-remote {
  font-size: 0.68rem;
  color: var(--green);
  background: rgba(61, 220, 132, 0.12);
  border: 1px solid rgba(61, 220, 132, 0.3);
  padding: 0.1rem 0.5rem;
  border-radius: 100px;
  margin-left: 0.3rem;
}
.tl-period {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  white-space: nowrap;
}
.tl-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; }
.tl-card li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.tl-card li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--green);
}
.tl-card li strong { color: var(--text); }

.subsection-title {
  font-size: 1.5rem;
  margin: 3.5rem 0 1.5rem;
}
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.edu-card {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  transition: transform 0.25s var(--ease), border-color 0.3s;
}
.edu-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.edu-card img {
  width: 56px; height: 56px;
  border-radius: 13px;
  object-fit: cover;
  background: #fff;
  flex-shrink: 0;
}
.edu-card h4 { margin: 0; font-size: 1.02rem; }
.edu-card p { margin: 0.25rem 0; color: var(--text-dim); font-size: 0.9rem; }
.edu-card span { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); }

/* ---------- apps grid ---------- */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}
.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s var(--ease), border-color 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.app-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(61, 220, 132, 0.6), transparent 40%, transparent 60%, rgba(168, 85, 247, 0.6));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}
.app-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.app-card:hover::after { opacity: 1; }
.app-card__icon {
  width: 74px; height: 74px;
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 1.1rem;
  box-shadow: 0 10px 24px -10px rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border);
}
.app-card__icon img { width: 100%; height: 100%; object-fit: cover; }
.app-card h3 { font-size: 1.2rem; margin: 0 0 0.5rem; }
.app-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0 0 1rem; }
.app-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  font-weight: 500;
}
.app-card__link svg { transition: transform 0.25s var(--ease); }
.app-card:hover .app-card__link svg { transform: translate(3px, -3px); }

/* ---------- CTA banner ---------- */
.cta-banner {
  max-width: var(--maxw);
  margin: 2rem auto 5rem;
  padding: 0 1.5rem;
}
.cta-banner__inner {
  position: relative;
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px circle at 30% 0%, rgba(61, 220, 132, 0.14), transparent 50%),
    radial-gradient(600px circle at 80% 100%, rgba(168, 85, 247, 0.14), transparent 50%),
    var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.cta-banner__inner h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); margin: 0 0 0.8rem; }
.cta-banner__inner p { color: var(--text-dim); max-width: 560px; margin: 0 auto 2rem; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 5rem 1.5rem 2.5rem;
}
.footer__inner { max-width: 760px; margin: 0 auto; text-align: center; }
.footer__title { font-size: clamp(2rem, 5vw, 2.8rem); margin: 0.4rem 0 0.8rem; }
.footer__sub { color: var(--text-dim); margin: 0 auto 2.5rem; max-width: 460px; }

.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 3rem;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.2rem;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.25s var(--ease);
}
.contact-link svg { color: var(--text-dim); transition: color 0.25s; }
.contact-link:hover {
  color: var(--text);
  border-color: var(--green);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -14px rgba(61, 220, 132, 0.6);
}
.contact-link:hover svg { color: var(--green); }
.copyright { color: var(--text-faint); font-size: 0.85rem; font-family: var(--font-mono); }

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 7rem;
    gap: 3.5rem;
    min-height: auto;
  }
  .hero__eyebrow { margin-inline: auto; }
  .hero__desc { margin-inline: auto; }
  .hero__cta, .hero__stats { justify-content: center; }
  .hero__visual { order: -1; }
  .about { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
}

@media (max-width: 760px) {
  .nav__links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    flex-direction: column;
    justify-content: center;
    gap: 1.8rem;
    padding: 2rem;
    background: color-mix(in srgb, var(--bg-2) 96%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    z-index: 90;
  }
  .nav__links.open { transform: translateX(0); }
  .nav__links a { font-size: 1.2rem; }
  .nav__burger { display: flex; }
  .nav__cta { display: none; }
  .nav.scrolled .nav__inner { border-radius: 20px; }
  .section { padding: 4.5rem 1.3rem; }
  .timeline { padding-left: 1.8rem; }
  .tl-period { margin-left: 0; }
}

@media (max-width: 420px) {
  .phone { width: 250px; height: 530px; }
  .hero__stats { gap: 1.4rem; }
  .float-badge { font-size: 0.72rem; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}