:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #2563eb;
  --primary-soft: #eff6ff;
  --accent: #f59e0b;
  --accent-soft: #fffbeb;
  --green: #10b981;
  --green-soft: #ecfdf5;
  --header-bg: rgba(248, 250, 252, 0.85);
  --blob-a: #bfdbfe;
  --blob-b: #fde68a;
  --shadow: rgba(15, 23, 42, .3);
  --tg: #229ed9;
  --gh: #181717;
  --radius: 18px;
  color-scheme: light;
}

/* Tungi rejim: qo'lda tanlanganda */
:root[data-theme="dark"] {
  --bg: #0b1120;
  --surface: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --line: #1f2937;
  --primary: #3b82f6;
  --primary-soft: rgba(59, 130, 246, .15);
  --accent: #fbbf24;
  --accent-soft: rgba(251, 191, 36, .12);
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, .12);
  --header-bg: rgba(11, 17, 32, 0.8);
  --blob-a: #1e3a8a;
  --blob-b: #78350f;
  --shadow: rgba(0, 0, 0, .6);
  --gh: #f0f6fc;
  color-scheme: dark;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Manrope", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background .3s ease, color .3s ease;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
header {
  position: sticky; top: 0; z-index: 10;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 28px; font-weight: 500; color: var(--muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
  width: 46px; height: 46px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  font-size: 1.2rem; cursor: pointer;
  display: grid; place-items: center;
  transition: transform .15s ease, border-color .15s ease;
}
.theme-toggle:hover { transform: translateY(-2px); border-color: var(--primary); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px;
  font-weight: 600; font-size: 0.97rem;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px -8px rgba(37, 99, 235, .6); }
.btn-outline { background: var(--surface); border: 1px solid var(--line); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* Hero */
.hero { padding: 96px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: center; }
.badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: var(--primary-soft); color: var(--primary);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 22px;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.12; letter-spacing: -0.03em; font-weight: 800; }
h1 .hl { color: var(--primary); }
.hero p { margin: 22px 0 34px; font-size: 1.12rem; color: var(--muted); max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.ico { width: 18px; height: 18px; flex-shrink: 0; }
.socials { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.social {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: 0.9rem; font-weight: 600;
  transition: transform .15s ease, border-color .15s ease;
}
.social:hover { transform: translateY(-2px); }
.social.tg .ico { color: var(--tg); }
.social.gh .ico { color: var(--gh); }
.social.tg:hover { border-color: var(--tg); }
.social.gh:hover { border-color: var(--gh); }

/* Hero photo */
.hero-photo { position: relative; max-width: 420px; margin-left: auto; }
.hero-photo::before {
  content: ""; position: absolute; inset: -18px -18px 18px 18px;
  background: linear-gradient(135deg, var(--blob-a), var(--blob-b));
  border-radius: 32px; z-index: 0;
}
.photo-frame {
  position: relative; z-index: 1;
  border-radius: 28px; overflow: hidden;
  border: 6px solid var(--surface);
  box-shadow: 0 30px 60px -25px var(--shadow);
  aspect-ratio: 4 / 5;
}
.photo-frame img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; display: block; }
.float {
  position: absolute; z-index: 2;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border-radius: 16px;
  padding: 12px 16px; font-size: 0.85rem; font-weight: 600;
  box-shadow: 0 14px 30px -12px var(--shadow);
  animation: floaty 4s ease-in-out infinite;
}
.float b { display: block; font-size: 1.15rem; font-weight: 800; line-height: 1.1; }
.float small { color: var(--muted); font-weight: 500; }
.float .fi { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; font-size: 1.15rem; }
.float.f1 { top: 28px; left: -40px; }
.float.f2 { bottom: 110px; right: -36px; animation-delay: 1.3s; }
.float.f3 { bottom: -18px; left: 24px; animation-delay: 2.6s; }
.float.f1 b { color: var(--primary); }
.float.f2 b { color: var(--green); }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .float { animation: none; } }

/* Sections */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 48px; }
.section-head .eyebrow { color: var(--primary); font-weight: 700; font-size: 0.85rem; letter-spacing: .08em; text-transform: uppercase; }
.section-head h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; margin: 8px 0 12px; }
.section-head p { color: var(--muted); }

/* About */
.about { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.about-item { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg); }
.icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 16px;
}
.about-item h4, .service h3 { font-size: 1.1rem; margin-bottom: 6px; }
.about-item p, .service p { color: var(--muted); font-size: 0.97rem; }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 24px; padding: 36px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.service:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -24px var(--shadow); }
.service h3 { font-size: 1.35rem; margin-bottom: 10px; }
.service ul { list-style: none; margin-top: 20px; display: grid; gap: 10px; }
.service li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.97rem; }
.service li::before { content: "✓"; color: var(--green); font-weight: 800; }

/* Contact */
.contact-box {
  background: linear-gradient(135deg, #1d4ed8, #3b82f6);
  color: #fff; border-radius: 28px; padding: 56px 40px; text-align: center;
}
.contact-box h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; }
.contact-box p { opacity: .85; margin: 10px auto 34px; max-width: 520px; }
.contact-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; max-width: 640px; margin: 0 auto; }
.contact-link {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .25);
  padding: 16px 24px; border-radius: 16px; font-weight: 600; text-align: left;
  transition: background .15s ease, transform .15s ease;
}
.contact-link:hover { background: rgba(255, 255, 255, .22); }
.contact-link small { display: block; font-weight: 500; opacity: .75; font-size: 0.8rem; }
.contact-link .ci {
  width: 46px; height: 46px; border-radius: 14px; flex-shrink: 0;
  display: grid; place-items: center; background: #fff;
}
.contact-link .ci svg { width: 24px; height: 24px; }
.ci.phone { color: #16a34a; }
.ci.tg { color: #229ed9; }
.ci.gh { color: #181717; }

footer { padding: 32px 0; text-align: center; color: var(--muted); font-size: 0.9rem; }
footer a { color: var(--primary); font-weight: 600; }
.footer-socials { display: flex; justify-content: center; gap: 10px; margin-bottom: 14px; }
.fs {
  width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--line);
  transition: transform .15s ease, border-color .15s ease;
}
.fs:hover { transform: translateY(-2px); border-color: var(--primary); }
.fs svg { width: 20px; height: 20px; }
.fs.tg { color: var(--tg); }
.fs.gh { color: var(--gh); }
.fs.phone { color: var(--green); }

/* Orqa fon: sekin suzuvchi, goh ravshan, goh xira rangli dog'lar */
.bg-glow { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg-glow span {
  position: absolute; width: 60vmax; height: 60vmax; border-radius: 50%;
  animation: glow 18s ease-in-out infinite alternate;
  will-change: transform, opacity;
}
.bg-glow span:nth-child(1) { background: radial-gradient(circle, var(--blob-a), transparent 65%); top: -20vmax; left: -18vmax; }
.bg-glow span:nth-child(2) { background: radial-gradient(circle, var(--blob-b), transparent 65%); top: 25%; right: -22vmax; animation-duration: 22s; animation-delay: -7s; }
.bg-glow span:nth-child(3) { background: radial-gradient(circle, var(--green), transparent 60%); bottom: -25vmax; left: 15%; animation-name: glow-soft; animation-duration: 26s; animation-delay: -12s; }
@keyframes glow {
  0% { transform: translate(0, 0) scale(1); opacity: .3; }
  50% { transform: translate(8vmax, 6vmax) scale(1.15); opacity: .65; }
  100% { transform: translate(-4vmax, 10vmax) scale(.95); opacity: .35; }
}
@keyframes glow-soft {
  0% { transform: translate(0, 0) scale(1); opacity: .08; }
  50% { transform: translate(-6vmax, -8vmax) scale(1.1); opacity: .22; }
  100% { transform: translate(6vmax, -4vmax) scale(.95); opacity: .1; }
}

/* Skroll qilganda paydo bo'lish (sinflarni script.js qo'shadi) */
.reveal:not(.visible) { opacity: 0; }
.reveal.visible { animation: rise .7s cubic-bezier(.2, .7, .2, 1) var(--d, 0s) backwards; }
@keyframes rise { from { opacity: 0; translate: 0 28px; } }

/* Menyu orqali o'tganda sarlavha header ostida qolmasin */
section[id] { scroll-margin-top: 68px; }

/* Bosilganda kichrayish */
.btn:active, .social:active, .fs:active, .contact-link:active, .theme-toggle:active { transform: scale(.96); }
.theme-toggle.spin { animation: spin .5s ease; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .bg-glow span, .theme-toggle.spin, .reveal.visible { animation: none; }
}

/* Responsive */
/* O'rta ekranlarda "Magistr" kartochkasi ekrandan chiqib ketmasin */
@media (max-width: 1120px) {
  .float.f2 { right: -16px; }
}
@media (max-width: 860px) {
  .hero { padding: 56px 0 48px; }
  .hero-grid, .services-grid { grid-template-columns: 1fr; }
  .hero-photo { margin: 20px auto 0; max-width: 340px; }
  .float.f1 { left: -12px; }
  .float.f2 { right: -12px; }
  .about-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  section { padding: 60px 0; }
  .service { padding: 28px; }
  .contact-box { padding: 44px 20px; }
  .contact-links { grid-template-columns: 1fr; }
}