/* ==========================================================================
   RadixDigital — v3 Design System
   Koyu hero + açık gövde, bento grid, duotone/tridtone accent, glow CTA
   ========================================================================== */

:root {
  /* Neutrals */
  --color-text: #0A0A0B;
  --color-text-secondary: #71717A;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F7F8;
  --color-border: #E5E5E7;

  /* Hero / dark surface */
  --color-hero-bg: #0A0A0F;
  --color-hero-text: #FFFFFF;
  --color-hero-text-secondary: #9CA3AF;

  /* Accents */
  --color-accent-blue: #3B82F6;
  --color-accent-coral: #FF6B4A;
  --color-accent-purple: #8B5CF6;

  --radius-card: 22px;
  --radius-pill: 999px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Geist", "Helvetica Neue", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

section { position: relative; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.03em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent-blue);
  text-transform: none;
}

.eyebrow-dark { color: #C7D2FE; }

h1.display {
  font-size: clamp(38px, 6vw, 76px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h2.section-title {
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

p.lead {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 640px;
}

.mono-index {
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: box-shadow 0.3s var(--ease), transform 0.2s var(--ease), background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: #fff;
  box-shadow: 0 0 0 rgba(59,130,246,0);
}
.btn-primary:hover { box-shadow: 0 0 40px rgba(59,130,246,0.35); transform: translateY(-2px); }
.btn-primary:active { transform: scale(0.97); }

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-text); transform: translateY(-2px); }

.btn-ghost-dark {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost-dark:hover { border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }

.btn-sm { padding: 10px 20px; font-size: 14px; }

/* ---------- Nav ---------- */
nav.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid rgba(255,255,255,0.1);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1160px;
  margin: 0 auto;
}

.logo {
  display: inline-flex;
  align-items: center;
}
.logo-lockup { height: 26px; width: auto; display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-hero-text-secondary);
  transition: color 0.2s ease;
}
.nav-links a:hover,
.nav-links a.active { color: #fff; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-hero-text-secondary);
}
.lang-toggle a { padding: 2px 6px; border-radius: 6px; }
.lang-toggle a.active { color: #fff; background: rgba(255,255,255,0.08); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span { width: 20px; height: 1.5px; background: #fff; display: block; }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-hero-bg);
  padding: 100px 24px 40px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  font-size: 24px;
  color: #fff;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  padding: 96px 0 120px;
}

.hero .container { position: relative; z-index: 2; }

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  animation: float 18s ease-in-out infinite;
  z-index: 1;
}
.blob-1 { top: -60px; left: -40px; width: 320px; height: 320px; background: #3B82F6; animation-delay: 0s; }
.blob-2 { top: 20px; right: -60px; width: 360px; height: 360px; background: #8B5CF6; animation-delay: -6s; }
.blob-3 { bottom: -100px; left: 40%; width: 340px; height: 340px; background: #FF6B4A; animation-delay: -12s; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.3);
  font-size: 13px;
  font-weight: 500;
  color: #93C5FD;
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent-coral);
}

.hero-title { margin-bottom: 24px; }
.hero-title .accent { color: var(--color-accent-coral); font-weight: 700; }

.hero-sub {
  font-size: 18px;
  color: var(--color-hero-text-secondary);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-badge, .hero-title, .hero-sub, .hero-cta {
  opacity: 0; transform: translateY(16px);
  animation: fadeUp 0.7s var(--ease) forwards;
}
.hero-badge { animation-delay: 0.05s; }
.hero-title { animation-delay: 0.15s; }
.hero-sub   { animation-delay: 0.3s; }
.hero-cta   { animation-delay: 0.45s; }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* stat strip */
.stat-strip {
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.stat-item .num { font-size: 28px; font-weight: 700; color: #fff; }
.stat-item .label { font-size: 13px; color: var(--color-hero-text-secondary); margin-top: 4px; }

/* Page hero (secondary pages, shorter/no stat strip) */
.page-hero { padding: 80px 0 72px; }
.page-hero .lead-dark { color: var(--color-hero-text-secondary); font-size: 18px; max-width: 620px; }

/* ---------- Sections (light) ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-head { margin-bottom: 56px; max-width: 640px; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head p.lead { margin-top: 16px; }

/* ---------- Bento grid ---------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.bento-card {
  border-radius: var(--radius-card);
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s ease;
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  border-color: transparent;
}

.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x,50%) var(--y,50%), rgba(59,130,246,0.12), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.bento-card:hover::before { opacity: 1; }
.bento-card.accent-coral::before { background: radial-gradient(circle at var(--x,50%) var(--y,50%), rgba(255,107,74,0.14), transparent 60%); }
.bento-card.accent-purple::before { background: radial-gradient(circle at var(--x,50%) var(--y,50%), rgba(139,92,246,0.14), transparent 60%); }

.bento-card .mono-index { margin-bottom: 20px; }
.bento-card h3 { font-size: 20px; margin-bottom: 10px; }
.bento-card p { font-size: 15px; color: var(--color-text-secondary); margin: 0 0 20px; flex-grow: 1; }
.bento-card .card-link { font-size: 14px; font-weight: 500; color: var(--color-text); display: inline-flex; gap: 6px; align-items: center; }
.bento-card .card-link .arrow { transition: transform 0.2s ease; }
.bento-card:hover .card-link .arrow { transform: translateX(4px); }

/* service grid sizing: 1 big + rest small, then row of remaining */
.bento-grid.services .card-1 { grid-column: span 3; grid-row: span 2; }
.bento-grid.services .card-2 { grid-column: span 3; }
.bento-grid.services .card-3 { grid-column: span 3; }
.bento-grid.services .card-4 { grid-column: span 3; }
.bento-grid.services .card-5 { grid-column: span 3; }
.bento-grid.services .card-6 { grid-column: span 6; }

.card-illustration {
  width: 72px;
  height: 54px;
  object-fit: contain;
  margin-bottom: 16px;
}
.bento-card.card-6 .card-illustration,
.bento-card.card-1 .card-illustration {
  width: 96px;
  height: 72px;
}

.bento-grid.why .card-1 { grid-column: span 4; }
.bento-grid.why .card-2 { grid-column: span 2; }
.bento-grid.why .card-3 { grid-column: span 6; }

/* ---------- Process steps ---------- */
.process-list { display: flex; flex-direction: column; }
.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}
.process-step:last-child { border-bottom: 1px solid var(--color-border); }
.process-step .mono-index { font-size: 15px; padding-top: 4px; }
.process-step h3 { font-size: 20px; margin-bottom: 8px; }
.process-step p { color: var(--color-text-secondary); font-size: 16px; max-width: 560px; margin: 0; }

/* ---------- Service detail blocks ---------- */
.service-detail {
  padding: 72px 0;
  border-top: 1px solid var(--color-border);
}
.service-detail-head { display: flex; align-items: baseline; gap: 20px; margin-bottom: 40px; }
.service-detail-head .mono-index { font-size: 20px; color: var(--color-accent-blue); }
.service-detail-head h2 { font-size: clamp(24px, 3vw, 34px); }

.service-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.service-detail-grid .block h4 {
  font-size: 13px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--color-text-secondary); margin-bottom: 12px;
}
.service-detail-grid .block p,
.service-detail-grid .block li {
  font-size: 16px; color: var(--color-text); margin: 0 0 8px;
}
.service-detail-grid .block ul li { position: relative; padding-left: 18px; color: var(--color-text-secondary); }
.service-detail-grid .block ul li::before {
  content: ''; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-accent-blue);
}
.process-inline { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 15px; color: var(--color-text); }
.process-inline .sep { color: var(--color-text-secondary); }

/* ---------- Channel / tool logo badges ---------- */
.channel-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.channel-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.channel-badge:hover { border-color: var(--color-accent-blue); transform: translateY(-1px); }
.channel-badge img { width: 16px; height: 16px; object-fit: contain; flex-shrink: 0; }

/* ---------- Section illustrations (flat SVG) ---------- */
.illustration {
  width: 100%;
  height: auto;
  display: block;
}
.illustration-wrap {
  border-radius: var(--radius-card);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-detail-grid.with-illustration {
  grid-template-columns: 0.9fr 1.1fr 1fr;
}
@media (max-width: 900px) {
  .service-detail-grid.with-illustration { grid-template-columns: 1fr; }
  .illustration-wrap { order: -1; max-width: 320px; margin: 0 auto 8px; }
}

/* ---------- Feature blocks (about page principles) ---------- */
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.principle-card {
  padding: 28px; border-radius: var(--radius-card); background: #fff; border: 1px solid var(--color-border);
}
.principle-card .mono-index { margin-bottom: 16px; }
.principle-card h3 { font-size: 18px; margin-bottom: 10px; }
.principle-card p { color: var(--color-text-secondary); font-size: 15px; margin: 0; }

.about-narrative p { font-size: 18px; line-height: 1.7; color: var(--color-text); max-width: 720px; margin: 0 0 24px; }
.about-narrative p.lead-quote { font-size: 22px; font-weight: 500; color: var(--color-text); }

.about-layout { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: start; }
.about-illustration { width: 100%; }
@media (max-width: 900px) {
  .about-layout { grid-template-columns: 1fr; }
  .about-illustration { max-width: 240px; margin: 0 auto; }
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-hero-bg);
  color: #fff;
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 32px; letter-spacing: -0.02em; }
.cta-band .container { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }

/* ---------- Contact page ---------- */
.contact-card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 56px 40px;
  margin-top: -64px;
  position: relative;
  z-index: 3;
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
}
.contact-card p.lead { margin: 16px auto 32px; text-align: center; }
.contact-alt {
  margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--color-border);
  font-size: 14px; color: var(--color-text-secondary);
}
.contact-alt a { color: var(--color-accent-blue); font-weight: 500; }

/* ---------- Footer ---------- */
footer {
  background: var(--color-hero-bg);
  color: var(--color-hero-text-secondary);
  padding: 56px 0 32px;
}
.footer-top {
  display: flex; justify-content: space-between; align-items: flex-start;
  padding-bottom: 40px; margin-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap; gap: 24px;
}
.footer-links { display: flex; gap: 32px; flex-wrap: wrap; }
.footer-links a { font-size: 14px; color: var(--color-hero-text-secondary); }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; font-size: 13px; flex-wrap: wrap; gap: 12px; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .bento-grid.services .card-1,
  .bento-grid.services .card-2,
  .bento-grid.services .card-3,
  .bento-grid.services .card-4,
  .bento-grid.services .card-5,
  .bento-grid.services .card-6 { grid-column: span 6; grid-row: span 1; }
  .bento-grid.why .card-1,
  .bento-grid.why .card-2,
  .bento-grid.why .card-3 { grid-column: span 6; }
  .service-detail-grid { grid-template-columns: 1fr; }
  .principle-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .stat-strip { gap: 32px; }
  .contact-card { padding: 40px 24px; }
}

@media (max-width: 560px) {
  .process-step { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 88px; }
  .section { padding: 64px 0; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .blob, .reveal, .btn-primary, .bento-card, .hero-badge, .hero-title, .hero-sub, .hero-cta {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}