/* ============================================================
   DevOpen — Ekip Tanıtım Sitesi
   style.css
   ============================================================ */

/* ---------- Tema değişkenleri ---------- */
:root,
[data-theme="dark"] {
  --bg-primary: #08090f;
  --bg-secondary: #0c0e16;
  --surface: #141826;
  --surface-2: #1a2032;
  --accent-orange: #7c50e6;
  --accent-blue: #39a7cc;
  --accent-amber: #5a6ee6;
  --text-primary: #f4f5fb;
  --text-secondary: #9aa0b8;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(150, 130, 245, 0.20);
  --glow: rgba(124, 80, 230, 0.18);
  --nav-bg: rgba(8, 9, 15, 0.62);
  --card-grad: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
  --logo-filter: none;
  --shadow-lg: 0 30px 60px -20px rgba(0, 0, 0, 0.7);
}

[data-theme="light"] {
  --bg-primary: #f5f6fb;
  --bg-secondary: #ebedf5;
  --surface: #ffffff;
  --surface-2: #f5f6fc;
  --accent-orange: #6234d4;
  --accent-blue: #1787b0;
  --accent-amber: #4453c8;
  --text-primary: #0d0f1a;
  --text-secondary: #5a5f73;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(98, 52, 212, 0.22);
  --glow: rgba(98, 52, 212, 0.12);
  --nav-bg: rgba(245, 246, 251, 0.72);
  --card-grad: linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.5));
  --logo-filter: invert(1) brightness(0.25);
  --shadow-lg: 0 30px 60px -24px rgba(26, 22, 50, 0.18);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
  /* Contain horizontal overflow at the scroll root so no decorative/absolute
     element can force a page-wide sideways scroll on small screens.
     `clip` (not `hidden`) keeps html as the scroller, so smooth scroll +
     scroll-padding-top still work. */
  overflow-x: clip;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: clip;
  font-size: 1rem;
  transition: background 0.5s ease, color 0.5s ease;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

code, .mono {
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

img { display: block; max-width: 100%; }

::selection {
  background: var(--accent-orange);
  color: #fff;
}

/* ---------- Layout helpers ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

section {
  position: relative;
  padding: 8rem 0;
}

.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-orange);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent-orange);
}

.section-title {
  font-size: 3rem;
  margin-bottom: 1.2rem;
}

.section-lead {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 46ch;
}

/* ---------- Animated aurora background (both themes) ---------- */
body::before {
  content: "";
  position: fixed;
  inset: -25%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(38% 38% at 18% 28%, color-mix(in oklch, var(--accent-orange), transparent 78%), transparent 70%),
    radial-gradient(34% 34% at 82% 22%, color-mix(in oklch, var(--accent-blue), transparent 80%), transparent 70%),
    radial-gradient(42% 42% at 62% 82%, color-mix(in oklch, var(--accent-amber), transparent 82%), transparent 70%),
    radial-gradient(30% 30% at 35% 70%, color-mix(in oklch, var(--accent-blue), transparent 84%), transparent 70%);
  filter: blur(46px);
  animation: aurora 26s ease-in-out infinite alternate;
  opacity: 0.85;
}
[data-theme="light"] body::before { opacity: 1; }
@keyframes aurora {
  0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
  50%  { transform: translate(4%, -3%) rotate(8deg) scale(1.12); }
  100% { transform: translate(-3%, 4%) rotate(-6deg) scale(1.05); }
}

/* ---------- Background canvas ---------- */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.9;
}

.page {
  position: relative;
  z-index: 1;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, backdrop-filter 0.4s ease,
    border-color 0.4s ease, padding 0.4s ease;
}
.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.95rem;
  box-shadow: 0 0 22px var(--glow);
  flex-shrink: 0;
}
.brand span { color: var(--accent-orange); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
}
.nav-links a {
  position: relative;
  padding: 0.5rem 0.9rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.25rem;
  height: 2px;
  background: var(--accent-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle,
.nav-cta {
  font-family: "Inter", sans-serif;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-primary);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.theme-toggle {
  width: 42px;
  height: 42px;
  padding: 0;
}
.theme-toggle:hover { transform: translateY(-2px); border-color: var(--accent-orange); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.nav-cta {
  padding: 0 1.2rem;
  height: 42px;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}
.nav-cta:hover { border-color: var(--accent-orange); transform: translateY(-2px); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.mobile-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-open .hamburger span:nth-child(2) { opacity: 0; }
.mobile-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.mobile-open .mobile-menu { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  font-weight: 600;
  opacity: 0;
  transform: translateY(20px);
}
.mobile-open .mobile-menu a {
  animation: menuIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.mobile-open .mobile-menu a:nth-child(1) { animation-delay: 0.08s; }
.mobile-open .mobile-menu a:nth-child(2) { animation-delay: 0.16s; }
.mobile-open .mobile-menu a:nth-child(3) { animation-delay: 0.24s; }
.mobile-open .mobile-menu a:nth-child(4) { animation-delay: 0.32s; }
@keyframes menuIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 9rem 2rem 4rem;
  position: relative;
}
.hero-glow {
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(70vw, 720px);
  height: min(70vw, 720px);
  background: radial-gradient(circle, var(--glow), transparent 62%);
  filter: blur(20px);
  pointer-events: none;
  z-index: -1;
}
/* Hero entrance — base/end state is fully visible (safe w/o JS) */
.hero > *:not(.hero-glow):not(.scroll-indicator) {
  animation: heroIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-badge { animation-delay: 0.05s; }
.hero h1 { animation-delay: 0.18s; }
.hero-tagline { animation-delay: 0.34s; }
.hero-desc { animation-delay: 0.46s; }
.hero-cta { animation-delay: 0.58s; }
.scroll-indicator {
  animation: scrollIn 0.8s ease 0.85s both;
}
@keyframes scrollIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes heroIn {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--card-grad);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  margin-bottom: 2.2rem;
  backdrop-filter: blur(10px);
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #39a7cc;
  box-shadow: 0 0 10px #39a7cc;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero h1 {
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.95rem 1.7rem;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, background 0.25s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #ffffff;
  box-shadow: 0 12px 30px -10px var(--accent-orange);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -10px var(--accent-orange); }
.btn-ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text-primary);
}
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--accent-orange); }
.hero-cta { display: flex; gap: 0.9rem; flex-wrap: wrap; justify-content: center; }

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
}
.scroll-indicator .arrow {
  width: 22px;
  height: 22px;
  border-right: 2px solid var(--accent-orange);
  border-bottom: 2px solid var(--accent-orange);
  transform: rotate(45deg);
  animation: bounce 1.8s infinite;
}
@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.4; }
  50% { transform: rotate(45deg) translate(5px, 5px); opacity: 1; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 4rem;
  align-items: center;
}
.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.1rem;
  font-size: 1.08rem;
  max-width: 50ch;
}
.about-text strong { color: var(--text-primary); font-weight: 600; }
.about-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.8rem;
}
.pill {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  background: var(--card-grad);
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.stat-card {
  background: var(--card-grad);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.stat-card::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 110px;
  height: 110px;
  background: radial-gradient(circle, var(--glow), transparent 70%);
}
.stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-orange);
  letter-spacing: -0.03em;
}
.stat-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.45rem;
}

/* ============================================================
   TEAM
   ============================================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
  margin-top: 3.5rem;
}
.team-card {
  position: relative;
  background: var(--card-grad);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 2rem 1.8rem;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transform-style: preserve-3d;
  transition: transform 0.18s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
  will-change: transform;
}
.team-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    320px circle at var(--mx, 50%) var(--my, 0%),
    var(--glow),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.team-card:hover::before { opacity: 1; }
.team-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.team-card > * { transform: translateZ(40px); }

.team-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.3rem;
}
.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-strong);
  flex-shrink: 0;
  background: var(--surface-2);
}
.team-name {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
}
.team-role {
  color: var(--accent-orange);
  font-size: 0.85rem;
  font-family: "JetBrains Mono", monospace;
  margin-top: 0.15rem;
}

.team-section-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 1.3rem 0 0.6rem;
}
.team-edu {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.team-edu li { list-style: none; padding: 0.15rem 0; }
.team-edu li::before { content: "› "; color: var(--accent-orange); }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  padding: 0.3rem 0.65rem;
  border-radius: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.tech-icons { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center; }
.tech-icons img {
  width: 22px;
  height: 22px;
  opacity: 0.85;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.tech-icons img:hover { transform: scale(1.18); opacity: 1; }
.tech-icons .text-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.team-links {
  display: flex;
  gap: 0.55rem;
  margin-top: 1.6rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--border);
}
.icon-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: grid;
  place-items: center;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.icon-link:hover { transform: translateY(-3px); border-color: var(--accent-orange); }
.icon-link svg { width: 18px; height: 18px; fill: var(--text-primary); }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
  margin-top: 3.5rem;
}
.project-card {
  position: relative;
  background: var(--card-grad);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 2.4rem;
  backdrop-filter: blur(16px);
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease, border-color 0.3s ease;
}
.project-card:hover {
  transform: translateY(-8px) scale(1.012);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}
.project-card .bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber), var(--accent-blue));
  opacity: 0.85;
}
.project-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.project-name {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.7rem;
  font-weight: 700;
}
.project-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  color: var(--accent-amber);
  border: 1px solid var(--border);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  white-space: nowrap;
}
.project-stars svg { width: 14px; height: 14px; fill: var(--accent-amber); }
.project-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.4rem;
  max-width: 46ch;
}
.badge-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  padding: 0.3rem 0.65rem;
  border-radius: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.badge.feature { color: var(--accent-orange); border-color: color-mix(in oklch, var(--accent-orange), transparent 70%); }

.project-stack { display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; margin-bottom: 1.8rem; }
.project-stack img { width: 24px; height: 24px; opacity: 0.85; }

.project-actions { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.link-btn:hover { transform: translateY(-2px); border-color: var(--accent-orange); }
.link-btn svg { width: 16px; height: 16px; fill: currentColor; }
.link-btn.solid {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  color: #ffffff;
  border-color: transparent;
}

.projects-minor {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-top: 1.6rem;
}
.minor-card {
  background: var(--card-grad);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.minor-card:hover { transform: translateY(-4px); border-color: var(--accent-orange); }
.minor-name { font-family: "Space Grotesk", sans-serif; font-weight: 600; font-size: 1.1rem; margin-bottom: 0.4rem; }
.minor-desc { color: var(--text-secondary); font-size: 0.9rem; }
.minor-lang {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--accent-blue);
  margin-top: 0.9rem;
  display: inline-block;
}

/* ============================================================
   TECH STACK
   ============================================================ */
/* The decorative spinning rings below are absolute + rotating; their rotated
   bounding box extends past narrow viewports. Clip them to this section (their
   containing block) so they never widen the page. Faint, full-bleed decoration
   — clipping at the section edge is invisible on desktop, correct on mobile. */
#stack {
  overflow: clip;
}
.tech-bg-shape {
  position: absolute;
  width: 480px;
  height: 480px;
  border: 1px solid var(--border);
  border-radius: 28%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: spinSlow 38s linear infinite;
  pointer-events: none;
  opacity: 0.5;
}
.tech-bg-shape.two { width: 660px; height: 660px; animation-duration: 60s; animation-direction: reverse; opacity: 0.3; }
@keyframes spinSlow { to { transform: translate(-50%, -50%) rotate(360deg); } }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.2rem;
  margin-top: 3.5rem;
  position: relative;
}
.tech-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  padding: 1.5rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card-grad);
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.tech-item:hover { transform: translateY(-5px); border-color: var(--accent-orange); }
.tech-item img { width: 38px; height: 38px; transition: transform 0.25s ease; }
.tech-item:hover img { transform: scale(1.15); }
.tech-item .text-logo {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-blue);
  border: 1.5px solid var(--accent-blue);
  border-radius: 10px;
}
.tech-name {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  text-align: center;
}
.contact-title {
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  margin-bottom: 1.2rem;
  letter-spacing: -0.03em;
}
.contact-lead {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 50ch;
  margin: 0 auto 2.8rem;
}
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.4rem, 5vw, 2.4rem);
  font-weight: 600;
  color: var(--accent-orange);
  padding-bottom: 0.3rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s ease;
}
.contact-email:hover { border-color: var(--accent-orange); }
.contact-actions {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.6rem;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.2rem 0;
  text-align: center;
}
.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer p {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.footer .mit { color: var(--accent-orange); }

/* ---------- Reveal animation base ---------- */
.reveal {
  opacity: 0;
  translate: 0 30px;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    translate 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in { opacity: 1; translate: 0 0; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  section { padding: 6rem 0; }
  .container { padding-left: 1.5rem; padding-right: 1.5rem; }
  .section-title { font-size: 2.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid .team-card:nth-child(3) { grid-column: 1 / -1; }
  .projects-feature { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .navbar { justify-content: space-between; padding: 0.9rem 1.2rem; }
  .navbar.scrolled { padding: 0.7rem 1.2rem; }
}

@media (max-width: 640px) {
  section { padding: 4rem 0; }
  .container { padding-left: 1rem; padding-right: 1rem; }
  .section-title { font-size: 2rem; }
  .hero { padding-top: 7rem; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 2.4rem; }
  .team-grid { grid-template-columns: 1fr; }
  .team-grid .team-card:nth-child(3) { grid-column: auto; }
  .projects-minor { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(3, 1fr); }
  .project-card { padding: 1.8rem; }
  .tech-bg-shape, .tech-bg-shape.two { width: 320px; height: 320px; }
  .tech-bg-shape.two { width: 440px; height: 440px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; translate: 0 0; }
}

/* Disable hover-only effects on touch */
@media (hover: none) {
  .team-card:hover { transform: none; }
  .team-card::before { display: none; }
}

/* ============================================================
   FUN / INTERACTION LAYER
   ============================================================ */

/* ---------- Custom cursor (hover-capable only) ---------- */
.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  will-change: transform;
}
.cursor-dot {
  width: 8px;
  height: 8px;
  background: #fff;
  transform: translate(-50%, -50%);
}
.cursor-ring {
  width: 38px;
  height: 38px;
  border: 1.5px solid #fff;
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}
.cursor-ring.hovering {
  width: 64px;
  height: 64px;
  border-color: var(--accent-orange);
  mix-blend-mode: normal;
}
body.has-cursor { cursor: none; }
body.has-cursor a,
body.has-cursor button { cursor: none; }
@media (hover: none) {
  .cursor-dot, .cursor-ring { display: none !important; }
}

/* ---------- Language switcher ---------- */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 0.4rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  font-weight: 500;
  cursor: pointer;
  gap: 0.1rem;
  color: var(--text-secondary);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.lang-toggle:hover { border-color: var(--accent-orange); transform: translateY(-2px); }
.lang-toggle .seg {
  padding: 0.25rem 0.45rem;
  border-radius: 7px;
  transition: color 0.2s ease, background 0.2s ease;
}
.lang-toggle .seg.on {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
}

/* lang visibility helpers */
[data-lang="en"] .only-tr { display: none !important; }
[data-lang="tr"] .only-en { display: none !important; }

/* ---------- Hero interactive letters ---------- */
.hero-title {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  cursor: default;
}
.hero-letter {
  display: inline-block;
  will-change: transform;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), color 0.3s ease;
}
.hero-letter.space { width: 0.18em; }

/* typed tagline caret */
.type-caret {
  display: inline-block;
  width: 0.55ch;
  margin-left: 2px;
  color: var(--accent-orange);
  animation: caretBlink 1s steps(1) infinite;
}
@keyframes caretBlink { 50% { opacity: 0; } }
.hero-tagline { min-height: 1.4em; }

/* ---------- Marquee band ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface), transparent 30%);
  backdrop-filter: blur(6px);
  z-index: 1;
}
.marquee.tilt { transform: rotate(-1.6deg); margin: 4rem 0; border-radius: 4px; }
.marquee-track {
  display: flex;
  width: max-content;
  gap: 2.5rem;
  animation: marquee 26s linear infinite;
}
.marquee.rev .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(1.4rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 2.5rem;
  white-space: nowrap;
}
.marquee-item .star { color: var(--accent-orange); }
.marquee-item.ghost {
  color: transparent;
  -webkit-text-stroke: 1.3px var(--text-secondary);
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Magnetic + playful pressables ---------- */
.magnetic { will-change: transform; }
.pop { transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1); }
.pop:active { transform: scale(0.92); }

/* sticker rotation on tags / tech items */
.tag, .badge { transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease; }
.tag:hover, .badge:hover {
  transform: rotate(-3deg) scale(1.06);
  border-color: var(--accent-orange);
  color: var(--text-primary);
}
.tech-item:hover { border-color: var(--accent-orange); }
.tech-item.spin img, .tech-item.spin .text-logo { animation: spin360 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes spin360 { from { transform: rotate(0); } to { transform: rotate(360deg); } }

/* brand mark = easter egg button */
.brand-mark { cursor: pointer; transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); }
.brand:hover .brand-mark { transform: rotate(-12deg) scale(1.08); }
.brand-mark.kick { animation: kick 0.5s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes kick { 30% { transform: rotate(20deg) scale(1.3); } 60% { transform: rotate(-12deg) scale(0.9); } }

/* ---------- Confetti + toast ---------- */
#confetti {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
}
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translate(-50%, 140%);
  z-index: 10000;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  box-shadow: var(--shadow-lg);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toast.show { transform: translate(-50%, 0); }

/* ---------- Party mode ---------- */
body.party { animation: hueShift 6s linear infinite; }
@keyframes hueShift { to { filter: hue-rotate(360deg); } }

/* stat / counter card press pop */
.stat-card { transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.3s ease; }
.stat-card:hover { transform: translateY(-4px) rotate(0.6deg); border-color: var(--accent-orange); }

@media (hover: none) {
  body.has-cursor { cursor: auto; }
  .marquee.tilt { transform: rotate(-1.6deg); }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none !important; }
  .marquee-track { animation: none !important; }
  .type-caret { animation: none !important; }
}

/* ============================================================
   LOGO + RECOLOR FIXES
   ============================================================ */
.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  cursor: pointer;
  box-shadow: 0 0 20px var(--glow);
  border: 1px solid var(--border-strong);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.brand:hover .brand-logo { transform: rotate(-8deg) scale(1.06); }
.brand-logo.kick { animation: kick 0.5s cubic-bezier(0.34, 1.56, 0.64, 1); }

/* white text on the deeper green buttons in light mode */
[data-theme="light"] .btn-primary,
[data-theme="light"] .link-btn.solid,
[data-theme="light"] .lang-toggle .seg.on { color: #ffffff; }

/* ============================================================
   HERO v3 — asymmetric editorial + live terminal
   ============================================================ */
.hero {
  min-height: 100vh;
  display: grid;
  align-items: center;
  text-align: left;
  padding: 9rem 2rem 5rem;
}
.hero-inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 4.5rem;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.hero-kicker img { width: 26px; height: 26px; border-radius: 7px; }
.hero-kicker .k-name { color: var(--text-primary); font-weight: 500; letter-spacing: 0.16em; }
.hero-kicker .k-sep { color: var(--accent-orange); }

.hero-head {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(2.7rem, 6.4vw, 5.3rem);
  line-height: 1.0;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin: 1.6rem 0 1.3rem;
}
.hero-head .hl {
  position: relative;
  color: var(--accent-orange);
  white-space: nowrap;
}
.hero-head .hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.14em;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber));
  border-radius: 4px;
  transform: scaleX(0);
  transform-origin: left;
  animation: underlineIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards;
}
@keyframes underlineIn { to { transform: scaleX(1); } }

.hero-sub {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 42ch;
  margin-bottom: 2.2rem;
}
.hero-sub .em { color: var(--text-primary); font-weight: 500; }

.hero .hero-cta { justify-content: flex-start; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.1rem;
  margin-top: 2.4rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 0.5rem; }
.hero-meta b { color: var(--text-primary); font-weight: 600; }
.hero-meta .sep { width: 4px; height: 4px; border-radius: 50%; background: var(--accent-orange); }

/* terminal */
.hero-right { position: relative; }
.hero-watermark {
  position: absolute;
  width: 78%;
  right: -6%;
  bottom: -16%;
  opacity: 0.06;
  filter: grayscale(0.2);
  pointer-events: none;
  z-index: 0;
}
.terminal {
  position: relative;
  z-index: 1;
  background: color-mix(in oklch, var(--surface), transparent 8%);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-family: "JetBrains Mono", monospace;
}
.terminal::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber), transparent);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2), transparent 20%);
}
.terminal-bar .dots { display: flex; gap: 0.45rem; }
.terminal-bar .tdot { width: 11px; height: 11px; border-radius: 50%; }
.terminal-bar .tdot.r { background: #ff5f56; }
.terminal-bar .tdot.y { background: #ffbd2e; }
.terminal-bar .tdot.g { background: #27c93f; }
.terminal-bar .ttitle {
  margin: 0 auto;
  font-size: 0.74rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}
.terminal-body {
  padding: 1.3rem 1.4rem 1.5rem;
  min-height: 300px;
  font-size: 0.9rem;
  line-height: 1.95;
}
.t-line { white-space: pre-wrap; word-break: break-word; }
.t-prompt { color: var(--accent-orange); }
.t-prompt .tilde { color: var(--accent-amber); }
.t-cmd { color: var(--text-primary); }
.t-out { color: var(--text-secondary); display: block; }
.t-out .ok { color: var(--accent-blue); }
.t-out .file { color: var(--text-primary); }
.term-caret {
  display: inline-block;
  width: 0.6ch;
  height: 1.05em;
  vertical-align: -0.18em;
  background: var(--accent-orange);
  margin-left: 1px;
  animation: caretBlink 1s steps(1) infinite;
}

.hero .scroll-indicator { left: 2rem; transform: none; align-items: flex-start; }

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.8rem; }
  .hero-right { order: 2; }
  .hero-watermark { display: none; }
  .hero .scroll-indicator { display: none; }
}
@media (max-width: 640px) {
  .hero { padding-top: 7rem; }
  .terminal-body { min-height: 240px; font-size: 0.8rem; }
  .hero-head { font-size: clamp(2.2rem, 11vw, 3rem); }
}

/* ============================================================
   CONTACT v2 — founder direct-contact cards + extra shine
   ============================================================ */
#contact { overflow-x: clip; }                 /* contain the decorative glow */
.contact .container { position: relative; z-index: 1; }

/* soft brand glow behind the section */
.contact::after {
  content: "";
  position: absolute;
  top: 34%;
  left: 50%;
  width: min(82vw, 920px);
  height: min(58vh, 560px);
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, var(--glow), transparent 72%);
  filter: blur(30px);
  pointer-events: none;
  z-index: 0;
}

/* email focal-point shine */
.contact-email {
  transition: color 0.3s ease, text-shadow 0.35s ease, border-color 0.3s ease, transform 0.2s ease;
}
.contact-email:hover { text-shadow: 0 0 26px var(--accent-orange); }

/* divider label between org CTA and founder cards */
.contact-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  max-width: 540px;
  margin: 4.6rem auto 2.4rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.contact-divider::before,
.contact-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong));
}
.contact-divider::after { background: linear-gradient(90deg, var(--border-strong), transparent); }

/* founder grid */
.founder-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  max-width: 1000px;
  margin: 0 auto;
}
.founder-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  padding: 2.2rem 1.5rem 1.7rem;
  background: var(--card-grad);
  border: 1px solid var(--border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}
/* gradient top accent — same ramp as the project-card bar */
.founder-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber), var(--accent-blue));
  opacity: 0.9;
}
/* hover sheen */
.founder-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(300px circle at 50% -10%, var(--glow), transparent 62%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.founder-card > * { position: relative; z-index: 1; }
.founder-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}
.founder-card:hover::after { opacity: 1; }

/* avatar with gradient accent ring */
.founder-avatar-wrap {
  display: grid;
  place-items: center;
  padding: 3px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-blue));
  box-shadow: 0 0 24px var(--glow);
}
.founder-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--surface);
  background: var(--surface-2);
}
.founder-id { display: flex; flex-direction: column; gap: 0.25rem; }
.founder-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
}
.founder-role {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--accent-orange);
}
.founder-links { display: flex; gap: 0.55rem; margin-top: 0.1rem; }
/* website icon is stroke-based — keep it an outline globe, not a filled disc */
.founder-links svg[stroke] { fill: none; }

@media (max-width: 760px) {
  .founder-grid { grid-template-columns: 1fr; max-width: 380px; }
}