/* ============================================================
   HTH Developers — Core Stylesheet
   Dark + Gradient Neon Theme · Glassmorphism · Premium SaaS
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Brand palette */
  --c-bg: #060814;
  --c-bg-2: #0a0e1f;
  --c-surface: rgba(20, 25, 48, 0.78);
  --c-surface-solid: #11152b;
  --c-border: rgba(255, 255, 255, 0.08);
  --c-border-strong: rgba(255, 255, 255, 0.16);

  --c-text: #e8ecf8;
  --c-text-dim: #9aa3c2;
  --c-text-faint: #6b738f;

  --c-primary: #7c5cff;      /* violet */
  --c-secondary: #18e0ff;    /* cyan   */
  --c-accent: #ff4dd8;       /* magenta */
  --c-success: #2ee6a6;

  --grad-main: linear-gradient(120deg, #7c5cff 0%, #18e0ff 100%);
  --grad-accent: linear-gradient(120deg, #ff4dd8 0%, #7c5cff 100%);
  --grad-text: linear-gradient(120deg, #a78bff 0%, #18e0ff 60%, #2ee6a6 100%);

  --glow-primary: 0 0 24px rgba(124, 92, 255, 0.55);
  --glow-cyan: 0 0 24px rgba(24, 224, 255, 0.45);

  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;

  --shadow-card: 0 18px 50px -20px rgba(0, 0, 0, 0.8);
  --shadow-float: 0 30px 80px -30px rgba(124, 92, 255, 0.5);

  --font-head: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

  --maxw: 1200px;
  --nav-h: 76px;
}

/* Light theme overrides */
html[data-theme='light'] {
  --c-bg: #f4f6fd;
  --c-bg-2: #eef1fb;
  --c-surface: rgba(255, 255, 255, 0.85);
  --c-surface-solid: #ffffff;
  --c-border: rgba(15, 23, 60, 0.1);
  --c-border-strong: rgba(15, 23, 60, 0.18);
  --c-text: #131836;
  --c-text-dim: #4a5278;
  --c-text-faint: #7a82a3;
  --shadow-card: 0 18px 50px -24px rgba(60, 70, 120, 0.4);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background 0.4s ease, color 0.4s ease;
}

/* Ambient gradient background glows (no filter:blur — cheaper to paint) */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  opacity: 0.5;
  z-index: -2;
  pointer-events: none;
}
body::before {
  width: 55vw; height: 55vw;
  background: radial-gradient(circle, rgba(124,92,255,0.45), transparent 65%);
  top: -15vw; left: -12vw;
}
body::after {
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(24,224,255,0.38), transparent 65%);
  bottom: -18vw; right: -12vw;
}

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

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

section { padding-block: 110px; position: relative; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-secondary);
  padding: 7px 16px;
  border: 1px solid var(--c-border-strong);
  border-radius: 100px;
  background: var(--c-surface);
  margin-bottom: 20px;
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.12; font-weight: 700; }

.section-head h2 { font-size: clamp(2rem, 4.5vw, 3.1rem); letter-spacing: -0.02em; }
.section-head p { color: var(--c-text-dim); font-size: 1.08rem; margin-top: 16px; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-weight: 600;
  font-size: 0.98rem;
  border-radius: 100px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.3s ease, background 0.3s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 36px rgba(124, 92, 255, 0.8);
}

.btn-ghost {
  background: var(--c-surface);
  color: var(--c-text);
  border: 1px solid var(--c-border-strong);
}
.btn-ghost:hover {
  border-color: var(--c-secondary);
  color: var(--c-secondary);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

.btn-sm { padding: 9px 16px; font-size: 0.85rem; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, height 0.3s ease;
}
.navbar.scrolled {
  background: rgba(6, 8, 20, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c-border);
  height: 64px;
}
html[data-theme='light'] .navbar.scrolled { background: rgba(244, 246, 253, 0.8); }

.nav-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--grad-main);
  color: #fff;
  font-weight: 700;
  box-shadow: var(--glow-primary);
  font-size: 0.95rem;
}
.logo span { color: var(--c-text); }
.logo b { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 9px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-text-dim);
  border-radius: 100px;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--c-text); background: var(--c-surface); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: 1rem;
  transition: transform 0.4s ease, color 0.3s ease, border-color 0.3s ease;
}
.theme-toggle:hover { color: var(--c-secondary); border-color: var(--c-secondary); transform: rotate(40deg); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.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); }

/* ---------- Scroll progress bar ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--grad-main);
  z-index: 1100;
  box-shadow: var(--glow-primary);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(124, 92, 255, 0.22), transparent 45%),
    radial-gradient(circle at 82% 65%, rgba(24, 224, 255, 0.18), transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 46px 46px, 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 35%, #000 55%, transparent 100%);
  mask-image: radial-gradient(circle at 50% 35%, #000 55%, transparent 100%);
}
html[data-theme='light'] .hero-bg {
  background-image:
    radial-gradient(circle at 18% 30%, rgba(124, 92, 255, 0.16), transparent 45%),
    radial-gradient(circle at 82% 65%, rgba(24, 224, 255, 0.14), transparent 45%),
    linear-gradient(rgba(15, 23, 60, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 60, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 46px 46px, 46px 46px;
}
.hero .container { position: relative; z-index: 2; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid var(--c-border-strong);
  border-radius: 100px;
  background: var(--c-surface);
  font-size: 0.85rem;
  color: var(--c-text-dim);
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-success);
  box-shadow: 0 0 10px var(--c-success);
  animation: pulse 1.8s infinite;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}
.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  color: var(--c-text-dim);
  max-width: 560px;
  margin-bottom: 38px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 54px;
  flex-wrap: wrap;
}
.hero-stats .stat b {
  font-family: var(--font-head);
  font-size: 2rem;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  display: block;
}
.hero-stats .stat span { font-size: 0.85rem; color: var(--c-text-faint); }

/* Hero floating visual */
.hero-visual {
  position: relative;
  height: 460px;
  perspective: 1200px;
}
.orb {
  position: absolute;
  top: 50%; left: 50%;
  width: 320px; height: 320px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--grad-main);
  opacity: 0.9;
  box-shadow: var(--shadow-float);
  animation: floaty 6s ease-in-out infinite;
  will-change: transform;
}
.orb::after {
  content: '';
  position: absolute;
  inset: 18px;
  border-radius: 50%;
  background: var(--c-bg);
}
.float-card {
  position: absolute;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: #12162b;
  border: 1px solid var(--c-border-strong);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  z-index: 3;
  will-change: transform;
}
html[data-theme='light'] .float-card { background: #ffffff; }
.float-card i { font-size: 1.3rem; }
.float-card.fc-1 { top: 6%; left: -4%; animation: floaty 5s ease-in-out infinite; }
.float-card.fc-2 { bottom: 10%; right: -6%; animation: floaty 5.5s ease-in-out infinite 0.6s; }
.float-card.fc-3 { bottom: 38%; left: -8%; animation: floaty 6s ease-in-out infinite 1.2s; }
.fc-1 i { color: var(--c-secondary); }
.fc-2 i { color: var(--c-success); }
.fc-3 i { color: var(--c-accent); }

/* ---------- Glass card base ---------- */
.glass {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.about-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.about-avatar {
  width: 96px; height: 96px;
  border-radius: 24px;
  background: var(--grad-main);
  display: grid; place-items: center;
  font-family: var(--font-head);
  font-size: 2.2rem; font-weight: 700; color: #fff;
  box-shadow: var(--glow-primary);
  margin-bottom: 22px;
}
.about-card h3 { font-size: 1.5rem; }
.about-role { color: var(--c-secondary); font-weight: 600; margin-bottom: 4px; }
.about-meta { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.about-meta li { display: flex; align-items: center; gap: 12px; color: var(--c-text-dim); font-size: 0.95rem; }
.about-meta i { color: var(--c-primary); width: 18px; text-align: center; }

.about-content h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 18px; letter-spacing: -0.02em; }
.about-content p { color: var(--c-text-dim); margin-bottom: 18px; font-size: 1.05rem; }

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  font-weight: 500;
  font-size: 0.95rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.highlight:hover { transform: translateY(-4px); border-color: var(--c-primary); }
.highlight i { color: var(--c-secondary); font-size: 1.2rem; }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
  transform-style: preserve-3d;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 0;
}
.service-card:hover { border-color: var(--c-border-strong); transform: translateY(-8px); }
.service-card > * { position: relative; z-index: 1; }
.service-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: grid; place-items: center;
  font-size: 1.5rem;
  background: var(--grad-main);
  color: #fff;
  margin-bottom: 22px;
  box-shadow: var(--glow-primary);
}
.service-card h3 { font-size: 1.3rem; margin-bottom: 12px; }
.service-card p { color: var(--c-text-dim); font-size: 0.97rem; margin-bottom: 18px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tags span {
  font-size: 0.78rem;
  padding: 5px 12px;
  border-radius: 100px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
}

/* ---------- Service offering cards (pricing) ---------- */
.offer-card { display: flex; flex-direction: column; }
.offer-price { font-family: var(--font-head); font-weight: 700; font-size: 1.05rem; }
.offer-turnaround { font-family: var(--font-body); font-weight: 500; font-size: 0.85rem; color: var(--c-text-faint); }
.offer-best { font-size: 0.85rem; color: var(--c-text-faint); font-style: italic; }
.offer-card .btn { margin-top: auto; align-self: flex-start; }

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--c-border-strong);
  box-shadow: var(--shadow-float);
}
.project-thumb {
  height: 180px;
  position: relative;
  overflow: hidden;
  background: var(--grad-main);
}
.project-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-thumb img { transform: scale(1.08); }
.project-cat {
  position: absolute;
  top: 14px; left: 14px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 100px;
  background: rgba(6, 8, 20, 0.7);
  backdrop-filter: blur(8px);
  color: #fff;
  z-index: 2;
}
.project-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.project-body h3 { font-size: 1.3rem; margin-bottom: 10px; }
.project-body p { color: var(--c-text-dim); font-size: 0.92rem; margin-bottom: 16px; flex: 1; }
.project-tech { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 20px; }
.project-tech span {
  font-size: 0.74rem;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
}
.project-links { display: flex; flex-wrap: wrap; gap: 10px; }
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 100px;
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  transition: all 0.25s ease;
}
.project-links a:hover { border-color: var(--c-secondary); color: var(--c-secondary); transform: translateY(-2px); }
.project-links a.live:hover { color: var(--c-success); border-color: var(--c-success); }

/* ---------- Case studies ---------- */
.case-study-list { display: flex; flex-direction: column; gap: 28px; max-width: 860px; margin: 0 auto; }
.case-study { padding: 36px; border-radius: var(--radius-lg); }
.cs-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--c-surface);
  border: 1px solid var(--c-border-strong);
  color: var(--c-secondary);
  margin-bottom: 16px;
}
.case-study h3 { font-size: 1.5rem; margin-bottom: 6px; }
.case-study .cs-meta { color: var(--c-text-faint); font-size: 0.85rem; margin-bottom: 22px; }
.case-study p { color: var(--c-text-dim); font-size: 0.98rem; margin-bottom: 16px; }
.case-study p strong { color: var(--c-text); }
.cs-result {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: rgba(46, 230, 166, 0.12);
  border: 1px solid rgba(46, 230, 166, 0.4);
  color: var(--c-text);
  font-size: 0.95rem;
  margin-bottom: 22px;
}
.cs-result i { color: var(--c-success); margin-top: 3px; }
.cs-result strong { color: var(--c-success); }

/* ---------- Experience timeline ---------- */
.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding-left: 8px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 18px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-secondary), transparent);
}
.tl-item {
  position: relative;
  padding-left: 64px;
  padding-bottom: 42px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: 8px; top: 4px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 3px solid var(--c-primary);
  box-shadow: var(--glow-primary);
}
.tl-card { padding: 24px 26px; border-radius: var(--radius); }
.tl-card .tl-when { font-size: 0.8rem; color: var(--c-secondary); font-weight: 600; letter-spacing: 0.05em; }
.tl-card h3 { font-size: 1.25rem; margin: 6px 0 4px; }
.tl-card .tl-loc { color: var(--c-text-faint); font-size: 0.85rem; margin-bottom: 10px; }
.tl-card p { color: var(--c-text-dim); font-size: 0.94rem; }

.achievements {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 64px;
}
.achieve {
  text-align: center;
  padding: 30px 18px;
  border-radius: var(--radius);
}
.achieve b {
  font-family: var(--font-head);
  font-size: 2.4rem;
  display: block;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.achieve span { color: var(--c-text-dim); font-size: 0.9rem; }

/* ---------- Skills marquee ---------- */
.skills-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  margin-top: 40px;
}
.marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee 28s linear infinite;
}
.marquee-track .chip {
  padding: 12px 24px;
  border-radius: 100px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  display: flex; align-items: center; gap: 10px;
}
.marquee-track .chip i { color: var(--c-secondary); }

/* ---------- Testimonials ---------- */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.testi-card { padding: 30px; border-radius: var(--radius-lg); }
.testi-quote-icon { display: block; font-size: 1.4rem; color: var(--c-primary); opacity: 0.4; margin-bottom: 12px; }
.testi-card p { font-size: 1.05rem; margin-bottom: 22px; color: var(--c-text); }
.testi-author { display: flex; align-items: center; gap: 14px; }
.testi-card .btn-ghost { margin-top: 18px; }
.testi-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-main);
  display: grid; place-items: center;
  font-weight: 700; color: #fff;
  font-family: var(--font-head);
}
.testi-author b { display: block; }
.testi-author span { color: var(--c-text-faint); font-size: 0.85rem; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}
.contact-info h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 18px; letter-spacing: -0.02em; }
.contact-info > p { color: var(--c-text-dim); margin-bottom: 32px; font-size: 1.05rem; }
.contact-list { display: flex; flex-direction: column; gap: 16px; }
.contact-list a, .contact-list .ci {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.contact-list a:hover { transform: translateX(6px); border-color: var(--c-primary); }
.contact-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-main);
  color: #fff; font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-list small { display: block; color: var(--c-text-faint); font-size: 0.78rem; }
.contact-list b { font-weight: 600; font-size: 0.98rem; }

.contact-form { padding: 36px; border-radius: var(--radius-lg); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--c-text-dim); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--c-bg-2);
  border: 1px solid var(--c-border-strong);
  color: var(--c-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.2);
}
.field textarea { resize: vertical; min-height: 130px; }
.form-msg {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(46, 230, 166, 0.12);
  border: 1px solid rgba(46, 230, 166, 0.4);
  color: var(--c-success);
  font-size: 0.9rem;
  display: none;
}
.form-msg.show { display: block; }

/* ---------- CTA band ---------- */
.cta-band {
  text-align: center;
  padding: 64px 40px;
  border-radius: var(--radius-lg);
  background: var(--grad-accent);
  position: relative;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); color: #fff; margin-bottom: 16px; }
.cta-band p { color: rgba(255,255,255,0.85); margin-bottom: 30px; font-size: 1.08rem; }
.cta-band .btn-ghost { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); color: #fff; }
.cta-band .btn-ghost:hover { background: rgba(255,255,255,0.28); }

/* ---------- Footer ---------- */
.footer {
  padding: 70px 0 30px;
  border-top: 1px solid var(--c-border);
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p { color: var(--c-text-dim); margin-top: 18px; max-width: 320px; font-size: 0.95rem; }
.footer-socials { display: flex; gap: 12px; margin-top: 22px; }
.footer-socials a {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  transition: all 0.25s ease;
}
.footer-socials a:hover { color: var(--c-secondary); border-color: var(--c-secondary); transform: translateY(-4px); }
.footer-col h4 { font-size: 0.95rem; margin-bottom: 18px; }
.footer-col a { display: block; color: var(--c-text-dim); padding: 6px 0; font-size: 0.92rem; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--c-secondary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--c-border);
  color: var(--c-text-faint);
  font-size: 0.88rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 60px;
  text-align: center;
}
.page-hero h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); letter-spacing: -0.03em; margin-bottom: 16px; }
.page-hero p { color: var(--c-text-dim); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }
.breadcrumb { color: var(--c-text-faint); font-size: 0.85rem; margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--c-secondary); }

/* ---------- Filter pills ---------- */
.filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 44px; }
.filter-pill {
  padding: 9px 20px;
  border-radius: 100px;
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  color: var(--c-text-dim);
  font-weight: 600; font-size: 0.88rem;
  transition: all 0.25s ease;
}
.filter-pill:hover { color: var(--c-text); }
.filter-pill.active { background: var(--grad-main); color: #fff; border-color: transparent; box-shadow: var(--glow-primary); }

/* ---------- Loader ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: var(--c-bg);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.page-loader.hide { opacity: 0; visibility: hidden; }
.loader-ring {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 3px solid var(--c-border-strong);
  border-top-color: var(--c-primary);
  border-right-color: var(--c-secondary);
  animation: spin 0.9s linear infinite;
}

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--grad-main);
  color: #fff;
  display: grid; place-items: center;
  box-shadow: var(--glow-primary);
  z-index: 900;
  opacity: 0; visibility: hidden;
  transform: translateY(20px);
  transition: all 0.35s ease;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { transform: translateY(-4px) scale(1.05); }

/* ---------- Empty state ---------- */
.empty-state { text-align: center; padding: 60px 20px; color: var(--c-text-faint); grid-column: 1 / -1; }
.empty-state i { font-size: 3rem; margin-bottom: 16px; color: var(--c-text-faint); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .services-grid, .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .achievements { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .testi-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  section { padding-block: 80px; }
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 20px 24px;
    background: rgba(6, 8, 20, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
  }
  html[data-theme='light'] .nav-links { background: rgba(244,246,253,0.97); }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 16px; }
  .nav-toggle { display: flex; }
  .desktop-cta { display: none; }
  .services-grid, .projects-grid { grid-template-columns: 1fr; }
  .highlight-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .achievements { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .hero-stats { gap: 24px; }
  .cta-band { padding: 44px 24px; }
}

@media (max-width: 420px) {
  .container { padding-inline: 18px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}