/* ============================================================
   code-stack.online — style.css
   ============================================================ */

:root {
  --bg: #070b14;
  --bg-soft: #0b1120;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-solid: #0e1526;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e6edf7;
  --text-dim: #94a3b8;
  --accent: #38e0d0;
  --accent-2: #7c6cff;
  --grad: linear-gradient(100deg, #38e0d0, #7c6cff);
  --green: #4ade80;
  --radius: 16px;
  --nav-h: 72px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(56, 224, 208, 0.25); }

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

.container {
  width: min(1180px, 92%);
  margin-inline: auto;
}

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

/* ---------- ambient background ---------- */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
}

.glow {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.16;
  pointer-events: none;
  animation: drift 18s ease-in-out infinite alternate;
}
.glow-a {
  width: 560px; height: 560px;
  background: #38e0d0;
  top: -180px; right: -140px;
}
.glow-b {
  width: 640px; height: 640px;
  background: #7c6cff;
  bottom: -240px; left: -180px;
  animation-delay: -9s;
}
@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-60px, 50px) scale(1.15); }
}

/* ---------- reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--d, 0s);
}
[data-reveal].in {
  opacity: 1;
  transform: none;
}

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.35s ease, border-color 0.35s ease, height 0.35s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 11, 20, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: var(--border);
  height: 62px;
}
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand-mark { width: 34px; height: 34px; flex: none; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.brand-word em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s, background 0.25s, border-color 0.25s;
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--grad);
  color: #07121a;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(56, 224, 208, 0.28);
}
.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}
.btn-sm { padding: 9px 18px; font-size: 0.85rem; border-radius: 10px; }
.btn-lg { padding: 16px 30px; font-size: 1rem; }

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-h) + 24px);
  padding-bottom: 40px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-hello {
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.prompt { color: var(--green); margin-right: 8px; }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  color: var(--accent);
  margin-bottom: 20px;
  min-height: 1.6em;
}
.hero-role .mono { color: var(--text-dim); }
.typed { color: var(--accent); }
.caret {
  display: inline-block;
  width: 9px; height: 1.15em;
  background: var(--accent);
  margin-left: 3px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 30px;
}
.hero-sub strong { color: var(--text); }

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 42px;
}

.hero-stats {
  display: flex;
  gap: 44px;
  list-style: none;
  flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; }
.stat-num, .stat-plus {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  display: inline;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stats li { flex-direction: row; align-items: baseline; gap: 2px; flex-wrap: wrap; }
.stat-label {
  width: 100%;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* terminal */
.hero-visual { position: relative; }
.terminal {
  background: rgba(10, 15, 28, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.hero-visual:hover .terminal {
  transform: perspective(1200px) rotateY(0) rotateX(0);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.terminal-title {
  margin-left: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.terminal-body {
  padding: 22px 24px;
  font-size: 0.83rem;
  line-height: 1.75;
  min-height: 320px;
  white-space: pre-wrap;
  word-break: break-word;
}
.terminal-body .tk-kw { color: #c792ea; }
.terminal-body .tk-cls { color: #ffcb6b; }
.terminal-body .tk-str { color: #c3e88d; }
.terminal-body .tk-var { color: #82aaff; }
.terminal-body .tk-fn { color: #38e0d0; }
.terminal-body .tk-cm { color: #546e7a; }

.orbit-chip {
  position: absolute;
  padding: 8px 16px;
  font-size: 0.78rem;
  color: var(--text);
  background: rgba(14, 21, 38, 0.9);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  animation: float 5s ease-in-out infinite;
  backdrop-filter: blur(6px);
}
.chip-1 { top: -18px; right: 12%; animation-delay: 0s; border-color: rgba(56, 224, 208, 0.5); }
.chip-2 { bottom: 16%; left: -26px; animation-delay: -1.4s; border-color: rgba(124, 108, 255, 0.5); }
.chip-3 { bottom: -16px; right: 18%; animation-delay: -2.6s; }
.chip-4 { top: 22%; right: -20px; animation-delay: -3.8s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  color: var(--text-dim);
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  animation: bob 2.2s ease-in-out infinite;
  transition: color 0.25s, border-color 0.25s;
}
.scroll-hint svg { width: 16px; height: 16px; }
.scroll-hint:hover { color: var(--accent); border-color: var(--accent); }
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ---------- sections ---------- */
.section { padding: 110px 0; position: relative; }

.section-head { margin-bottom: 56px; }
.kicker {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* ---------- services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s, background 0.35s;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 224, 208, 0.4);
  background: rgba(56, 224, 208, 0.04);
}
.service-icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(56, 224, 208, 0.08);
  border: 1px solid rgba(56, 224, 208, 0.22);
  color: var(--accent);
  margin-bottom: 18px;
  transition: transform 0.35s, background 0.35s;
}
.service-card:hover .service-icon { transform: scale(1.08) rotate(-4deg); background: rgba(56, 224, 208, 0.14); }
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  margin-bottom: 8px;
}
.service-card p { font-size: 0.88rem; color: var(--text-dim); }

/* ---------- about ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 54px;
  align-items: start;
}
.about-text p { color: var(--text-dim); margin-bottom: 18px; }
.about-text strong { color: var(--text); }

.about-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 28px;
}
.fact {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.88rem;
  transition: border-color 0.3s, transform 0.3s;
}
.fact:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.fact svg { width: 20px; height: 20px; color: var(--accent); flex: none; }

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.mini-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s, background 0.35s;
}
.mini-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 224, 208, 0.4);
  background: rgba(56, 224, 208, 0.04);
}
.mini-card svg {
  width: 30px; height: 30px;
  color: var(--accent);
  margin-bottom: 14px;
}
.mini-card h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  margin-bottom: 8px;
}
.mini-card p { font-size: 0.86rem; color: var(--text-dim); line-height: 1.6; }

/* ---------- timeline ---------- */
.timeline {
  position: relative;
  max-width: 760px;
  margin-inline: auto;
  padding-left: 34px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2), transparent);
  opacity: 0.5;
}
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: -34px; top: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 5px rgba(56, 224, 208, 0.12);
}
.tl-item:nth-child(even) .tl-dot { border-color: var(--accent-2); box-shadow: 0 0 0 5px rgba(124, 108, 255, 0.12); }
.tl-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s;
}
.tl-card:hover { transform: translateX(6px); border-color: var(--border-strong); }
.tl-date {
  font-size: 0.76rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.tl-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  margin: 6px 0 8px;
}
.tl-co { color: var(--text-dim); font-weight: 500; font-size: 0.95rem; }
.tl-card p { color: var(--text-dim); font-size: 0.88rem; }

/* ---------- projects ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 42px;
}
.filter {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
  transition: all 0.3s;
}
.filter:hover { color: var(--text); border-color: var(--border-strong); }
.filter.active {
  background: var(--grad);
  color: #07121a;
  border-color: transparent;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.project {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s, background 0.4s, opacity 0.35s, scale 0.35s;
  will-change: transform;
}
.project::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--grad);
  -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 0.4s;
  pointer-events: none;
}
.project:hover { transform: translateY(-8px); background: rgba(255, 255, 255, 0.05); }
.project:hover::before { opacity: 1; }

.project.hide {
  display: none;
}
.project.pop-in {
  animation: pop 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes pop {
  from { opacity: 0; transform: translateY(18px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}

.project-cover {
  position: relative;
  margin: -26px -24px 20px;
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.project-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  transform: scale(1.001);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.project:hover .project-cover img { transform: scale(1.06); }
.project-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 11, 20, 0.55));
  pointer-events: none;
}

.badge { z-index: 2; }

.project-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.project-icon {
  width: 48px; height: 48px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: rgba(56, 224, 208, 0.08);
  border: 1px solid rgba(56, 224, 208, 0.22);
  color: var(--accent);
  transition: transform 0.35s, background 0.35s;
}
.project:hover .project-icon { transform: scale(1.08) rotate(-4deg); background: rgba(56, 224, 208, 0.14); }
.project-icon svg { width: 24px; height: 24px; }
.project-cat {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project h3 {
  font-family: var(--font-display);
  font-size: 1.14rem;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.project > p {
  font-size: 0.87rem;
  color: var(--text-dim);
  flex: 1;
  margin-bottom: 16px;
}

.badge {
  position: absolute;
  top: -11px;
  right: 18px;
  padding: 5px 13px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 999px;
  background: var(--grad);
  color: #07121a;
  box-shadow: 0 6px 18px rgba(56, 224, 208, 0.35);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}
.tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(56, 224, 208, 0.07);
  border: 1px solid rgba(56, 224, 208, 0.16);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  text-decoration: none;
  padding: 7px 13px;
  border-radius: 9px;
  border: 1px solid var(--border);
  transition: all 0.25s;
}
.project-links a:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(56, 224, 208, 0.07);
  transform: translateY(-2px);
}
.project-links a svg { width: 15px; height: 15px; }
.private {
  font-size: 0.74rem;
  color: var(--text-dim);
  opacity: 0.75;
  padding: 7px 0;
}

/* ---------- skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.skill-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s;
}
.skill-group:hover { transform: translateY(-5px); border-color: var(--border-strong); }
.skill-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.skill-head svg { width: 24px; height: 24px; color: var(--accent); }
.skill-head h3 { font-family: var(--font-display); font-size: 1.05rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 0.8rem;
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  transition: all 0.25s;
  cursor: default;
}
.chip:hover {
  color: #07121a;
  background: var(--grad);
  border-color: transparent;
  transform: translateY(-2px);
}

/* ---------- contact ---------- */
.contact-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  align-items: center;
  background:
    radial-gradient(900px 400px at 0% 0%, rgba(56, 224, 208, 0.08), transparent 60%),
    radial-gradient(900px 400px at 100% 100%, rgba(124, 108, 255, 0.1), transparent 60%),
    var(--panel-solid);
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  padding: clamp(32px, 5vw, 64px);
}
.contact-sub { color: var(--text-dim); margin-top: 16px; max-width: 440px; }
.contact-actions { display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }
.contact-actions .btn-primary { word-break: break-all; }
.contact-channels { display: flex; flex-wrap: wrap; gap: 12px; }
.contact-channels .btn span { white-space: nowrap; }
.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.contact-meta span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
  font-size: 0.88rem;
}
.contact-meta svg { width: 18px; height: 18px; color: var(--accent); flex: none; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 30px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.brand-footer .brand-mark { width: 26px; height: 26px; }
.brand-footer .brand-word { font-size: 1.05rem; }
.footer-note { color: var(--text-dim); font-size: 0.78rem; }
.to-top {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.3s;
}
.to-top svg { width: 18px; height: 18px; }
.to-top:hover { color: #07121a; background: var(--grad); border-color: transparent; transform: translateY(-3px); }


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 60px); padding-bottom: 90px; }
  .hero-visual { max-width: 620px; }
  .terminal { transform: none; }
  .scroll-hint { display: none; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100dvh;
    width: min(320px, 82vw);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 36px;
    gap: 26px;
    background: rgba(9, 13, 24, 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 1.15rem; }
  .nav-cta { margin-top: 10px; }

  .section { padding: 80px 0; }
  .contact-card { grid-template-columns: 1fr; gap: 30px; }
  .hero-stats { gap: 30px; }
  .orbit-chip { display: none; }
  .terminal-body { min-height: 260px; font-size: 0.76rem; }
}

@media (max-width: 560px) {
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .footer-inner { justify-content: center; text-align: center; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}