/* ===============================
   SR Universe Tech – Premium UI
   =============================== */

:root {
  --blue: #2563eb;
  --cyan: #06b6d4;
  --indigo: #4f46e5;
  --teal: #14b8a6;
  --green: #22c55e;
  --orange: #f97316;
  --purple: #8b5cf6;
  --pink: #ec4899;
  --red: #ef4444;

  --dark: #0f172a;
  --muted: #64748b;
  --bg: #ffffff;
  --surface: #f8fafc;

  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.08);
}

/* RESET */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.6;
}

h1, h2, h3, h4, h5 {
  font-family: "Poppins", sans-serif;
  margin-top: 0;
}

a { text-decoration: none; color: inherit; }

/* CONTAINER */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 1rem;
}

/* ===============================
   HEADER & NAV
   =============================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0,0,0,.05);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .6rem 0.75rem;
  min-height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--blue);
  z-index: 10001;
  position: relative;
}

.nav-toggle { display: none; background: transparent; border: 0; cursor: pointer; }

/* Hamburger bars base style (visible on mobile via media query) */
.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  margin: 4px 0;
  border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease;
}

/* Logo image + text */
.logo-img {
  max-height: 64px;
  width: auto;
  display: block;
  border-radius: 6px;
  object-fit: contain;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  image-rendering: auto;
  position: relative;
  z-index: 10002;
}
.logo-text { display: inline-block; font-weight:700; }

/* Tighten spacing in header and ensure logo has touch-friendly padding */
.header-inner .logo { padding: 6px 8px; }

/* If image missing, ensure the text remains visible */
.logo-img[alt]:not([src]) { display: none; }

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-weight: 600;
  padding: .5rem .75rem;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 3px;
  border-radius: 4px;
  transition: width .3s ease;
}

.site-nav a:hover::after {
  width: 100%;
}

/* Nav colors */
.site-nav a[href="#home"]::after { background: var(--blue); }
.site-nav a[href="#about"]::after { background: var(--indigo); }
.site-nav a[href="#expert"]::after { background: var(--teal); }
.site-nav a[href="#services"]::after { background: var(--green); }
.site-nav a[href="#positions"]::after { background: var(--orange); }
.site-nav a[href="#beliefs"]::after { background: var(--purple); }
.site-nav a[href="#contact"]::after { background: var(--red); }

/* ===============================
   SECTIONS BASE
   =============================== */
.section {
  padding: 4rem 0;
}

.section h2 {
  font-size: 1.9rem;
  margin-bottom: 1rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.9,.2,1);
}

/* Directional entrances - set on elements via data-dir="left" or "right" */
.fade-in[data-dir="left"] {
  transform: translateX(-36px) translateY(12px);
}
.fade-in[data-dir="right"] {
  transform: translateX(36px) translateY(12px);
}

.fade-in.in-view {
  opacity: 1;
  transform: none;
}

/* ===============================
   HERO
   =============================== */
.hero {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: white;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  align-items: center;
}

.hero .lead {
  opacity: .9;
}

.card-visual {
  height: 180px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}

/* Hero logo (replaces hero-media) */
.hero-logo { display:flex; align-items:center; justify-content:center; }
.hero-logo-img { max-height:220px; width:auto; border-radius:6px; box-shadow: var(--shadow); background: rgba(255,255,255,.95); padding:8px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: .7rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  transition: all .25s ease;
}

.btn.primary {
  background: white;
  color: var(--blue);
}

.btn.primary:hover {
  transform: translateY(-2px);
}

.btn.outline {
  border: 2px solid white;
  color: white;
}

/* ===============================
   ABOUT
   =============================== */
.about {
  background: linear-gradient(120deg, #eef2ff, #f8fafc);
  border-left: 6px solid var(--indigo);
}

/* ===============================
   EXPERT
   =============================== */
.expert {
  background: linear-gradient(120deg, #ecfeff, #f0fdfa);
}

.expert-list li {
  margin-bottom: .6rem;
}

.info-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-top: 4px solid var(--teal);
}

/* ===============================
   SERVICES
   =============================== */
.services {
  background: linear-gradient(120deg, #f0fdf4, #ffffff);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 1.2rem;
}

.card {
  background: white;
  padding: 1.4rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,.12);
}

.card-it { border-top: 5px solid var(--blue); }
.card-nonit { border-top: 5px solid var(--green); }

/* ===============================
   POSITIONS
   =============================== */
.positions {
  background: linear-gradient(120deg, #fff7ed, #ffffff);
}

.positions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: .7rem;
  padding: 0;
  list-style: none;
}

.positions-grid li {
  padding: .7rem .9rem;
  border-radius: 10px;
  background: white;
  box-shadow: var(--shadow);
  transition: transform .2s ease;
}

.positions-grid li:hover {
  transform: scale(1.03);
}

/* ===============================
   BELIEFS
   =============================== */
.beliefs {
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: white;
}

.quote {
  font-size: 1.2rem;
  background: rgba(255,255,255,.15);
  padding: 1.2rem;
  border-radius: var(--radius);
}

/* ===============================
   CONTACT
   =============================== */
.contact {
  background: linear-gradient(135deg, #fff7ed, #fee2e2);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: .7rem;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(239,68,68,.2);
}

/* ===============================
   FOOTER
   =============================== */
.site-footer {
  background: linear-gradient(135deg, #020617, #0f172a);
  color: white;
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links a {
  color: rgba(255,255,255,.8);
}

/* ===============================
   RESPONSIVE
   =============================== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .site-nav ul { display: none; }

  /* On mobile keep header minimal: use hamburger and keep logo small inside hero */
  .hero-logo-img { max-height:96px; }
  .logo-img { display:none; } /* hide header logo so hero logo is primary */
}

/* Mobile navigation and layout adjustments */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; width:44px; height:44px; background: transparent; border:0; cursor:pointer; z-index:10003; }

  .site-nav { position: absolute; top:64px; left:0; right:0; background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.95)); box-shadow: 0 8px 40px rgba(2,6,23,.12); padding: 1rem 0; transform: translateY(-8px); opacity:0; pointer-events:none; transition: opacity .22s ease, transform .22s ease; }
  .site-nav.open { opacity:1; transform: translateY(0); pointer-events:auto; }

  .site-nav ul { display:flex; flex-direction:column; gap:0.25rem; align-items:center; }
  .site-nav a { display:block; padding: .9rem 1rem; width:100%; text-align:center; }

  .nav-toggle.open .bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle.open .bar:nth-child(2) { opacity:0; }
  .nav-toggle.open .bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .header-inner { padding: .6rem 0; }
  .container { padding: 0 0.9rem; }

  /* Reduce spacing for mobile sections */
  .section { padding: 2rem 0; }
  .section h2 { font-size: 1.4rem; }

  /* Hero adjustments */
  .hero { padding: 2.5rem 0; }
  .card-visual { height: 140px; }

  /* Two-column layouts become single column */
  .grid-2 { display:block; }
  .grid-2 > * { margin-bottom: 1rem; }

  /* Positions list stacks vertically for readability */
  .positions-grid { grid-template-columns: 1fr; }

  /* Footer stacked */
  .footer-inner { flex-direction: column; gap: 1rem; }
}

/* Extra small devices */
@media (max-width: 480px) {
  body { font-size: 15px; }
  .logo { font-size: 1rem; }
  .btn { padding: .65rem 1rem; }
  .hero .lead { font-size: 0.98rem; }
  .positions-grid li { padding: .6rem .75rem; }
  .logo-img { height: 36px; margin-right: .45rem; }
}