/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0b1220;
  color: #e2e8f0;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: #fff; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; }

/* ===== Layout ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.hidden { display: none; }
.w-full { width: 100%; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { inset: 0; }
.pointer-events-none { pointer-events: none; }
.overflow-hidden { overflow: hidden; }
.object-cover { object-fit: cover; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-1\.5 > * + * { margin-top: 0.375rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-5 > * + * { margin-top: 1.25rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.list-disc { list-style: disc; }
.pl-5 { padding-left: 1.25rem; }

/* Spacing */
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-14 { margin-bottom: 3.5rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-0\.5 { margin-top: 0.125rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-12 { margin-top: 3rem; }
.me-2 { margin-right: 0.5rem; }

/* Typography */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.7; }
.tracking-wide { letter-spacing: 0.025em; }
.text-white { color: #fff; }
.text-slate-300 { color: #cbd5e1; }
.text-slate-400 { color: #94a3b8; }
.text-slate-500 { color: #64748b; }
.text-blue-300 { color: #93c5fd; }
.text-blue-400 { color: #60a5fa; }
.text-indigo-400 { color: #818cf8; }
.text-sky-400 { color: #38bdf8; }
.text-violet-400 { color: #a78bfa; }
.text-emerald-400 { color: #34d399; }

/* Borders & Backgrounds */
.border { border: 1px solid #334155; }
.border-t { border-top: 1px solid #334155; }
.border-y { border-top: 1px solid #1e293b; border-bottom: 1px solid #1e293b; }
.border-slate-700 { border-color: #334155; }
.border-slate-800 { border-color: #1e293b; }
.border-blue-500\/30 { border-color: rgba(59,130,246,0.3); }
.border-green-500\/30 { border-color: rgba(34,197,94,0.3); }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.bg-slate-800 { background: #1e293b; }
.bg-slate-900\/40 { background: rgba(15,23,42,0.4); }
.bg-slate-900\/60 { background: rgba(15,23,42,0.6); }
.bg-blue-500\/15 { background: rgba(59,130,246,0.15); }
.bg-blue-500\/20 { background: rgba(59,130,246,0.2); }
.bg-indigo-500\/20 { background: rgba(99,102,241,0.2); }
.bg-sky-500\/20 { background: rgba(14,165,233,0.2); }
.bg-violet-500\/20 { background: rgba(139,92,246,0.2); }

/* Gradient helpers */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-g1), var(--tw-g2)); }
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-g1), var(--tw-g2)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-g1), var(--tw-g2)); }
.from-blue-400 { --tw-g1: #60a5fa; }
.to-indigo-400 { --tw-g2: #818cf8; }
.from-blue-500 { --tw-g1: #3b82f6; }
.to-indigo-600 { --tw-g2: #4f46e5; }
.from-blue-600\/30 { --tw-g1: rgba(37,99,235,0.3); }
.to-indigo-600\/30 { --tw-g2: rgba(79,70,229,0.3); }
.from-blue-900\/20 { --tw-g1: rgba(30,58,138,0.2); }
.from-emerald-900\/40 { --tw-g1: rgba(6,78,59,0.4); }
.to-slate-800 { --tw-g2: #1e293b; }
.to-transparent { --tw-g2: transparent; }
.via-transparent { }
.bg-clip-text { -webkit-background-clip: text; background-clip: text; }
.text-transparent { color: transparent; }

/* Components */
.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  color: #fff !important;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none !important;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59,130,246,0.35);
  color: #fff !important;
}
.btn-outline {
  border: 1.5px solid #475569;
  color: #e2e8f0 !important;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  text-decoration: none !important;
  transition: border-color 0.2s, color 0.2s;
}
.btn-outline:hover {
  border-color: #3b82f6;
  color: #60a5fa !important;
}
.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 1rem;
  padding: 1.75rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  border-color: #3b82f6;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.25);
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
}
.section-sub {
  color: #94a3b8;
  font-size: 1.1rem;
  max-width: 640px;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,18,32,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #1e293b;
  padding: 1rem 0;
}
.site-nav .logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.logo-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, #3b82f6, #4f46e5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
}
.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-link:hover,
.nav-link.active { color: #fff; }

/* Footer */
.site-footer {
  border-top: 1px solid #1e293b;
  padding: 3rem 0 2rem;
  margin-top: 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.footer-brand .logo-mark {
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.65rem;
  border-radius: 0.375rem;
}
.footer-desc {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.6;
  max-width: 260px;
}
.footer-col-title {
  font-weight: 600;
  color: #fff;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 0.5rem;
}
.footer-links a {
  font-size: 0.875rem;
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: #fff; }
.footer-links li {
  font-size: 0.875rem;
  color: #94a3b8;
}
.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: #64748b;
  text-align: center;
}

/* Program tags */
.program-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  display: inline-block;
}
.tag-online { background: rgba(59,130,246,0.15); color: #60a5fa; }
.tag-yuzYuze { background: rgba(168,85,247,0.15); color: #c084fc; }
.tag-kurumsal { background: rgba(34,197,94,0.15); color: #4ade80; }

/* Form */
.form-label {
  display: block;
  font-size: 0.875rem;
  color: #94a3b8;
  margin-bottom: 0.4rem;
}
.form-input {
  width: 100%;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: #fff;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-input:focus {
  outline: none;
  border-color: #3b82f6;
}
textarea.form-input { resize: vertical; min-height: 120px; }

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  max-width: 520px;
  width: 92%;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  display: none;
}
.cookie-banner.show { display: block; }

/* Icon boxes */
.icon-box {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}
.icon-box-sm {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* CTA box */
.cta-box {
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(37,99,235,0.25), rgba(79,70,229,0.25));
  border: 1px solid rgba(59,130,246,0.3);
  padding: 2.5rem 2rem;
  text-align: center;
}

/* Responsive */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .sm\:flex-row { flex-direction: row; }
}
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md\:text-4xl { font-size: 2.25rem; }
  .md\:text-5xl { font-size: 3rem; }
  .md\:py-20 { padding-top: 5rem; padding-bottom: 5rem; }
  .md\:py-28 { padding-top: 7rem; padding-bottom: 7rem; }
  .md\:p-14 { padding: 3.5rem; }
  .nav-links { display: flex; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
  .lg\:col-span-1 { grid-column: span 1; }
  .lg\:col-span-2 { grid-column: span 2; }
  .lg\:col-span-3 { grid-column: span 3; }
  .lg\:text-6xl { font-size: 3.75rem; }
}