/* =========================================================
   Rota Kuran — İstanbul yürüyüş rotası konfigüratörü
   ========================================================= */

:root {
  --bg: #EBF5EE;
  --surface: #FFFFFF;
  --surface-2: #F4FAF6;
  --surface-3: #DDEDE2;
  --ink: #101410;
  --ink-2: #3A4438;
  --ink-3: #6A7568;
  --accent: #F2A8B4;
  --accent-strong: #E37486;
  --accent-2: #1B5E3A;
  --accent-2-dim: #2F7C4F;
  --line: rgba(16, 20, 16, 0.10);
  --line-2: rgba(16, 20, 16, 0.18);
  --shadow-sm: 0 2px 6px -2px rgba(16, 20, 16, 0.10);
  --shadow-md: 0 14px 32px -22px rgba(16, 20, 16, 0.30);
  --shadow-lg: 0 30px 60px -32px rgba(16, 20, 16, 0.30);
  --header-h: 76px;
  --container: 1180px;
  --tool-panel: 680px;
  --radius-sm: 6px;
  --radius: 14px;
  --radius-lg: 22px;
  --font-heading: 'DM Sans', system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, "SFMono-Regular", Consolas, monospace;
  interpolate-size: allow-keywords;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  max-width: 100vw;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

html {
  background: var(--bg);
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

main section[id], main [id] { scroll-margin-top: calc(var(--header-h) + 16px); }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

::selection { background: var(--accent); color: var(--ink); }

/* Skip link */
.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--ink); color: var(--surface);
  padding: 10px 16px; border-radius: 6px;
  z-index: 9999; font-weight: 500;
  transition: top 200ms ease;
}
.skip-link:focus { top: 12px; outline: 2px solid var(--accent); outline-offset: 2px; }

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1.05;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(36px, 5vw, 72px); }
h2 { font-size: clamp(28px, 3.6vw, 44px); }
h3 { font-size: clamp(20px, 2.2vw, 26px); }
h4 { font-size: 18px; letter-spacing: -0.015em; }

p { margin: 0 0 1em; color: var(--ink-2); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: var(--surface-3);
  padding: 6px 12px;
  border-radius: 999px;
}

.mono, .num { font-family: var(--font-mono); font-feature-settings: "tnum"; font-variant-numeric: tabular-nums; }

.section { padding: clamp(72px, 9vw, 128px) 0; }
.section-head { max-width: 720px; margin: 0 auto clamp(40px, 5vw, 64px); text-align: center; }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head p { font-size: 18px; color: var(--ink-2); }
.section-tight { padding: clamp(48px, 6vw, 80px) 0; }

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1080;
  background: rgba(235, 245, 238, 0.94);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: background 240ms ease, border-color 240ms ease, box-shadow 240ms ease, padding 240ms ease;
}
.site-header.is-scrolled {
  background: #FFFFFF;
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px -16px rgba(16, 20, 16, 0.18);
}

/* Scroll progress bar (top edge of header) */
.scroll-progress {
  position: absolute;
  left: 0; bottom: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 80ms linear;
  pointer-events: none;
  z-index: 1;
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
}

.brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.03em;
  color: var(--ink);
  font-size: 19px;
}
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--ink); color: var(--bg);
  border-radius: 9px;
  position: relative;
  overflow: hidden;
  flex: none;
}
.brand-mark svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.brand-text { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-text small {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em;
  color: var(--accent-2); text-transform: uppercase; font-weight: 500;
  margin-top: 4px;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 28px;
}
.nav-desktop a {
  position: relative;
  font-size: 15px; font-weight: 500;
  color: var(--ink-2);
  padding: 8px 2px;
  transition: color 200ms ease;
}
.nav-desktop a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 240ms cubic-bezier(.4,0,.2,1);
}
.nav-desktop a:hover, .nav-desktop a.is-active { color: var(--ink); }
.nav-desktop a:hover::after, .nav-desktop a.is-active::after { transform: scaleX(1); }

.nav-desktop .nav-cta::after { display: none; }
.nav-desktop .nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: #101410 !important;
  color: #ffffff !important;
  padding: 10px 18px; border-radius: 999px;
  font-weight: 500; letter-spacing: -0.01em;
  border: 1px solid #101410;
  transition: background 200ms ease, color 200ms ease, transform 200ms ease, border-color 200ms ease;
}
.nav-desktop .nav-cta:hover, .nav-desktop .nav-cta:focus-visible {
  background: #1B5E3A !important;
  color: #ffffff !important;
  border-color: #1B5E3A;
  transform: translateY(-1px);
}

/* Hamburger toggle */
.nav-toggle {
  position: relative;
  z-index: 1100;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 12px;
  display: inline-grid; place-items: center;
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease;
}
@media (min-width: 1024px) {
  .nav-desktop { display: inline-flex; }
  .nav-toggle { display: none !important; }
}
.nav-toggle:hover { background: var(--surface-2); border-color: var(--line-2); }
.nav-toggle .bars { position: relative; width: 18px; height: 14px; }
.nav-toggle .bars span {
  position: absolute; left: 0; right: 0; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform 240ms cubic-bezier(.4,0,.2,1), opacity 200ms ease;
}
.nav-toggle .bars span:nth-child(1) { top: 0; }
.nav-toggle .bars span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle .bars span:nth-child(3) { bottom: 0; }
.nav-toggle[aria-expanded="true"] .bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile drawer */
.drawer-backdrop {
  position: fixed; inset: 0;
  background: rgba(16, 20, 16, 0.55);
  z-index: 1030;
  opacity: 0; pointer-events: none;
  transition: opacity 240ms ease;
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }

.mobile-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(360px, 92vw);
  background: var(--surface);
  z-index: 1050;
  transform: translateX(100%);
  transition: transform 320ms cubic-bezier(.2,.7,.2,1);
  display: flex; flex-direction: column;
  box-shadow: -20px 0 50px -20px rgba(16, 20, 16, 0.30);
}
.mobile-drawer.is-open { transform: translateX(0); }
.mobile-drawer .drawer-head {
  height: var(--header-h);
  display: flex; align-items: center;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.drawer-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, transform 200ms ease;
}
.drawer-close:hover, .drawer-close:focus-visible { background: var(--accent); border-color: var(--ink); transform: rotate(90deg); }
.drawer-close svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2.2; stroke-linecap: round; }
.mobile-drawer nav {
  flex: 1;
  padding: 22px;
  overflow-y: auto;
}
.mobile-drawer nav a {
  display: block;
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: color 200ms ease, transform 200ms ease;
}
.mobile-drawer nav a:hover { color: var(--accent-2); transform: translateX(4px); }
.mobile-drawer nav a.is-active { color: var(--accent-2); }
.mobile-drawer .drawer-foot {
  padding: 22px;
  border-top: 1px solid var(--line);
  display: grid; gap: 10px;
}
.mobile-drawer .drawer-foot a { font-size: 13px; color: var(--ink-3); }
.mobile-drawer .drawer-foot .btn-primary { justify-content: center; }

@media (min-width: 1024px) {
  .mobile-drawer, .drawer-backdrop { display: none; }
}

main { padding-top: var(--header-h); }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  font-weight: 500; font-size: 15px;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 220ms ease, color 220ms ease, transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
/* btn-primary — always the same default color everywhere on the site.
   Only :hover / :focus-visible change the color. No contextual overrides. */
.btn-primary {
  background: #101410 !important;
  color: #ffffff !important;
  border: 1px solid #101410 !important;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 8px 18px -12px rgba(16, 20, 16, 0.45);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: #1B5E3A !important;
  color: #ffffff !important;
  border-color: #1B5E3A !important;
  transform: translateY(-2px);
  box-shadow: 0 0 0 3px rgba(27, 94, 58, 0.22), 0 16px 32px -14px rgba(27, 94, 58, 0.55);
}
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-accent { background: var(--accent); color: var(--ink); }
.btn-accent:hover, .btn-accent:focus-visible { background: var(--accent-strong); color: var(--surface); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -16px rgba(16, 20, 16, 0.55);
}
.btn-lg { padding: 16px 28px; font-size: 16px; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  padding: clamp(48px, 7vw, 96px) 0 clamp(64px, 8vw, 120px);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: -10% -5% 0 -5%;
  background: radial-gradient(ellipse 60% 50% at 18% 24%, rgba(242, 168, 180, 0.25), transparent 60%),
              radial-gradient(ellipse 50% 40% at 88% 80%, rgba(27, 94, 58, 0.10), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero .leaf { position: absolute; pointer-events: none; opacity: 0.55; }
.hero .leaf-1 { top: 14%; left: 6%; animation: leaf-drift 16s ease-in-out infinite; }
.hero .leaf-2 { top: 70%; left: 18%; animation: leaf-drift 22s ease-in-out infinite reverse; }
.hero .leaf-3 { top: 28%; right: 8%; animation: leaf-drift 19s ease-in-out infinite; }
@keyframes leaf-drift {
  0%, 100% { transform: translate(0, 0) rotate(-6deg); }
  50% { transform: translate(18px, -22px) rotate(8deg); }
}

.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr;
  gap: clamp(40px, 5vw, 60px);
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-grid { grid-template-columns: 58% 42%; gap: 48px; }
  .hero-stub { order: 1; }
  .hero-text { order: 2; }
}

.hero-text .eyebrow { margin-bottom: 22px; }
.hero-text h1 {
  font-size: clamp(36px, 5vw, 72px);
  margin-bottom: 18px;
  max-width: 18ch;
}
.hero-text h1 .glow {
  background: linear-gradient(180deg, transparent 60%, rgba(242, 168, 180, 0.55) 60%);
  padding: 0 4px;
  border-radius: 4px;
}
.hero-text .sub {
  font-size: 18px; color: var(--ink-2);
  max-width: 460px;
  margin-bottom: 30px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent-2); margin-top: 24px;
}
.hero-tag .pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2);
  position: relative;
  animation: pulse-ring 1.8s ease-out infinite;
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(27, 94, 58, 0.55); }
  70% { box-shadow: 0 0 0 14px rgba(27, 94, 58, 0); }
  100% { box-shadow: 0 0 0 0 rgba(27, 94, 58, 0); }
}

/* Hero tool stub */
.hero-stub {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--shadow-lg);
}
.hero-stub::before {
  content: "";
  position: absolute; inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(135deg, rgba(242, 168, 180, 0.35), transparent 40%, rgba(27, 94, 58, 0.18));
  z-index: -1;
  filter: blur(20px);
  opacity: 0.65;
}
.stub-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.stub-row .stub-step {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em;
  color: var(--ink-3); text-transform: uppercase;
}
.stub-row .stub-line { flex: 1; height: 1px; background: var(--line); }

.stub-track {
  position: relative;
  height: 40px;
  margin: 8px 0 22px;
}
.stub-track .dots {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  height: 6px;
  background-image: radial-gradient(circle, var(--ink-3) 1.4px, transparent 1.6px);
  background-size: 10px 6px;
  background-repeat: repeat-x;
  background-position: 0 50%;
  border-radius: 3px;
  opacity: 0.45;
}
.stub-track .fill {
  position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 62%; height: 4px;
  background: var(--accent-2);
  border-radius: 2px;
}
.stub-track .thumb {
  position: absolute; top: 50%; left: 62%;
  transform: translate(-50%, -50%);
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--accent-2);
  box-shadow: var(--shadow-md);
  animation: thumb-bob 3.6s ease-in-out infinite;
}
@keyframes thumb-bob {
  0%, 100% { left: 62%; }
  50% { left: 70%; }
}

.stub-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.stub-chip {
  font-size: 13px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 6px;
}
.stub-chip.is-on { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.stub-chip .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.7; }

.stub-output {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 18px;
  display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center;
}
.stub-output .label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 6px;
}
.stub-output .value {
  font-family: var(--font-mono); font-weight: 500; font-size: 30px;
  letter-spacing: -0.02em;
  color: var(--ink); font-variant-numeric: tabular-nums;
}
.stub-output .sub-value {
  font-size: 13px; color: var(--ink-2); margin-top: 6px;
}
.stub-output .badge {
  align-self: start;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent-2);
  background: var(--surface-3);
  padding: 6px 10px; border-radius: 999px;
}

/* =========================================================
   Configurator (main tool)
   ========================================================= */
.config-bg { background: linear-gradient(180deg, var(--bg) 0%, var(--surface-3) 100%); }

.config-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: var(--container);
  margin: 0 auto;
}
@media (min-width: 1024px) {
  .config-grid { grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: start; }
}

.config-panel {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: clamp(24px, 3vw, 36px);
  box-shadow: var(--shadow-md);
}

.config-stage {
  border-bottom: 1px dashed var(--line);
  padding: 22px 0;
}
.config-stage:first-child { padding-top: 0; }
.config-stage:last-child { border-bottom: 0; padding-bottom: 0; }

.stage-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 18px;
}
.stage-head .step {
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ink); color: var(--surface);
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
}
.stage-head h3 {
  margin: 0;
  font-size: 18px; font-weight: 700; letter-spacing: -0.02em;
}
.stage-head .hint {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3);
}

/* Slider */
.slider-wrap {
  position: relative;
  padding: 8px 0 30px;
}
.slider-readout {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 14px;
}
.slider-readout .num {
  font-family: var(--font-mono); font-weight: 500;
  font-size: clamp(36px, 5vw, 56px);
  color: var(--ink); letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.slider-readout .unit {
  font-size: 16px; color: var(--ink-3);
  font-family: var(--font-mono); letter-spacing: 0.04em;
}
.slider-track-wrap {
  position: relative;
  height: 36px;
  margin: 4px 0 8px;
  cursor: pointer;
}
.slider-track {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  height: 8px;
  background-image: radial-gradient(circle, var(--ink-3) 1.6px, transparent 1.8px);
  background-size: 12px 8px;
  background-repeat: repeat-x;
  background-position: 0 50%;
  opacity: 0.40;
}
.slider-fill {
  position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  height: 4px; background: var(--accent-2);
  border-radius: 2px;
  width: 30%;
  transition: width 180ms ease-out;
}
.slider-thumb {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--accent-2);
  box-shadow: 0 6px 18px -8px rgba(27, 94, 58, 0.55);
  cursor: grab;
  z-index: 2;
  transition: left 180ms ease-out, transform 200ms ease;
}
.slider-thumb:active, .slider-thumb.is-dragging { cursor: grabbing; transform: translate(-50%, -50%) scale(1.1); }
.slider-thumb::after {
  content: "";
  position: absolute; inset: 6px; border-radius: 50%;
  background: var(--accent-2);
}
input[type="range"].native-slider {
  position: absolute; inset: 0;
  opacity: 0; cursor: pointer;
  width: 100%; height: 100%;
}

.slider-ticks {
  display: flex; justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* Chip groups */
.chip-group {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 16px; border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease, transform 200ms ease;
  user-select: none;
}
.chip .tick {
  width: 18px; height: 18px; border-radius: 50%;
  border: 1.5px solid var(--line-2);
  display: grid; place-items: center;
  transition: background 200ms ease, border-color 200ms ease;
  flex: none;
}
.chip .tick svg { width: 11px; height: 11px; stroke: var(--surface); fill: none; stroke-width: 2.6; opacity: 0; transform: scale(0.6); transition: opacity 200ms ease, transform 200ms ease; }
.chip:hover { background: var(--surface); border-color: var(--line-2); transform: translateY(-1px); }
.chip.is-active {
  background: var(--ink); color: var(--surface);
  border-color: var(--ink);
}
.chip.is-active .tick { background: var(--accent); border-color: var(--accent); }
.chip.is-active .tick svg { opacity: 1; transform: scale(1); stroke: var(--ink); }

/* Output card */
.output-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: clamp(24px, 3vw, 36px);
  box-shadow: var(--shadow-lg);
  position: sticky; top: calc(var(--header-h) + 20px);
  perspective: 1000px;
}
.output-card.is-flipping .output-inner {
  animation: cardflip 240ms cubic-bezier(.4,0,.2,1);
}
@keyframes cardflip {
  0% { transform: rotateX(0deg); opacity: 1; }
  50% { transform: rotateX(-90deg); opacity: 0.4; }
  100% { transform: rotateX(0deg); opacity: 1; }
}
.output-inner { transform-origin: center top; }

.output-eyebrow {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-2); margin-bottom: 12px;
  display: inline-flex; align-items: center; gap: 8px;
}
.output-eyebrow .live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); animation: pulse-ring 1.8s ease-out infinite; }

.output-title {
  font-size: clamp(24px, 3vw, 32px); margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.output-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 22px;
}
.output-stats .stat .label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 4px;
  display: block;
}
.output-stats .stat .value {
  font-family: var(--font-mono); font-weight: 500;
  font-size: clamp(18px, 2.4vw, 26px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.output-stats .stat .value .unit {
  font-size: 12px; color: var(--ink-3); font-weight: 500;
  margin-left: 4px;
}

.odometer { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.odometer-row {
  background: linear-gradient(135deg, var(--ink) 0%, #1d231d 100%);
  color: var(--bg);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 22px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.odometer-row .od-label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(235, 245, 238, 0.65);
}
.odometer-row .od-value {
  font-family: var(--font-mono); font-weight: 500;
  font-size: clamp(28px, 3.4vw, 36px);
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  letter-spacing: -0.01em;
  line-height: 1;
}

.stops-list { list-style: none; padding: 0; margin: 0 0 22px; }
.stops-list li {
  display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.stops-list li:last-child { border-bottom: 0; }
.stops-list li .index {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--surface-3); color: var(--accent-2);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
}
.stops-list li .stop-name { font-weight: 500; color: var(--ink); }
.stops-list li .stop-tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--accent-2);
  background: var(--surface-3);
  padding: 4px 10px; border-radius: 999px;
  white-space: nowrap;
}
.stops-list li .stop-note { font-size: 13px; color: var(--ink-3); display: block; margin-top: 2px; }

.audio-meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--ink-2);
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  margin-bottom: 18px;
}
.audio-meta .pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface-2);
  padding: 6px 10px; border-radius: 999px;
  border: 1px solid var(--line);
}
.audio-meta .pill svg { width: 14px; height: 14px; stroke: var(--accent-2); fill: none; stroke-width: 1.6; }

.output-cta { display: flex; flex-wrap: wrap; gap: 10px; }

/* =========================================================
   Sample routes
   ========================================================= */
.routes-grid {
  display: grid; grid-template-columns: 1fr;
  gap: 22px;
}
@media (min-width: 640px) { .routes-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .routes-grid { grid-template-columns: repeat(3, 1fr); } }

.route-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid var(--line);
  transition: transform 280ms cubic-bezier(.2,.7,.2,1), box-shadow 280ms ease, border-color 280ms ease;
  display: flex; flex-direction: column; gap: 14px;
  position: relative; overflow: hidden;
}
.route-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: left;
  transition: transform 360ms cubic-bezier(.4,0,.2,1);
}
.route-card:hover { transform: translateY(-6px); border-color: transparent; box-shadow: 0 22px 50px -28px rgba(27, 94, 58, 0.35); }
.route-card:hover::before { transform: scaleX(1); }

.route-card .route-meta {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3);
}
.route-card .route-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--accent-2); }
.route-card h3 { margin: 0; font-size: 22px; }
.route-card .route-line { height: 36px; }
.route-card .route-line svg { width: 100%; height: 100%; }
.route-card .route-line svg path { stroke-dasharray: 200; stroke-dashoffset: 200; transition: stroke-dashoffset 800ms ease; }
.route-card:hover .route-line svg path { stroke-dashoffset: 0; }
.route-card .route-stats {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px; color: var(--ink-2);
  font-variant-numeric: tabular-nums;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}
.route-card .route-stats span small { display: block; font-size: 10px; letter-spacing: 0.12em; color: var(--ink-3); text-transform: uppercase; margin-bottom: 2px; }

/* =========================================================
   Pricing
   ========================================================= */
.pricing-grid {
  display: grid; grid-template-columns: 1fr;
  gap: 22px;
  align-items: stretch;
}
@media (min-width: 768px) { .pricing-grid { grid-template-columns: repeat(3, 1fr); } }

.price-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--line);
  display: flex; flex-direction: column;
  position: relative;
  transition: transform 280ms ease, box-shadow 280ms ease;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.price-card.is-featured {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
}
.price-card.is-featured .price-amount,
.price-card.is-featured h3 { color: var(--bg); }
.price-card.is-featured .price-features li { color: rgba(235, 245, 238, 0.78); }
.price-card.is-featured .price-features li::before { background: var(--accent); }
.price-card.is-featured .price-eyebrow { color: var(--accent); background: rgba(242, 168, 180, 0.18); }
.price-card.is-featured .price-period { color: rgba(235, 245, 238, 0.6); }
.price-card.is-featured .price-tagline { color: rgba(235, 245, 238, 0.78); }
.price-card.is-featured .btn-ghost { color: var(--bg); border-color: rgba(235, 245, 238, 0.30); }
.price-card.is-featured .btn-ghost:hover { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.price-card.is-featured::after {
  content: "EN POPÜLER";
  position: absolute; top: 16px; right: 16px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em;
  color: var(--ink); background: var(--accent);
  padding: 5px 10px; border-radius: 999px;
}

.price-eyebrow {
  display: inline-block;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-2); background: var(--surface-3);
  padding: 5px 10px; border-radius: 999px; margin-bottom: 14px;
  align-self: flex-start;
}
.price-card h3 { margin: 0 0 8px; font-size: 22px; }
.price-tagline { font-size: 14px; color: var(--ink-2); margin-bottom: 20px; }
.price-amount {
  font-family: var(--font-mono); font-weight: 500;
  font-size: clamp(32px, 4vw, 44px);
  font-variant-numeric: tabular-nums;
  color: var(--ink); letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.price-period { font-size: 13px; color: var(--ink-3); margin-bottom: 22px; }
.price-features { list-style: none; padding: 0; margin: 0 0 26px; flex: 1; }
.price-features li {
  position: relative; padding-left: 22px; padding-block: 6px;
  font-size: 14px; color: var(--ink-2);
}
.price-features li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 12px; height: 2px; background: var(--accent-2);
}

/* =========================================================
   FAQ
   ========================================================= */
.faq-list {
  max-width: 880px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 12px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 240ms ease, box-shadow 240ms ease;
}
.faq-item[open] { border-color: var(--ink); box-shadow: var(--shadow-md); }
.faq-item summary {
  list-style: none;
  padding: 18px 22px;
  display: flex; align-items: center; gap: 16px;
  cursor: pointer;
  font-weight: 500; font-size: 16px;
  letter-spacing: -0.01em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; }
.faq-item summary .q-num {
  font-family: var(--font-mono); font-size: 12px; color: var(--accent-2);
  letter-spacing: 0.06em; flex: none;
}
.faq-item summary .q-txt { flex: 1; }
.faq-item summary .chev {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--surface-3); color: var(--accent-2);
  display: grid; place-items: center; flex: none;
  transition: transform 280ms cubic-bezier(.4,0,.2,1), background 240ms ease, color 240ms ease;
}
.faq-item summary .chev svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }
.faq-item[open] summary .chev { transform: rotate(180deg); background: var(--ink); color: var(--accent); }

.faq-item .answer {
  height: 0;
  padding: 0 22px;
  overflow: hidden;
  color: var(--ink-2);
  transition: height 360ms cubic-bezier(.4,0,.2,1),
              padding-block-end 360ms cubic-bezier(.4,0,.2,1);
}
.faq-item[open] .answer {
  height: auto;
  padding-block-end: 22px;
}
.faq-item .answer p { margin: 0 0 0.7em; }
.faq-item .answer p:last-child { margin-bottom: 0; }

@media (prefers-reduced-motion: reduce) {
  .faq-item .answer { transition: none; }
}

/* =========================================================
   Contact (index summary + page)
   ========================================================= */
.contact-grid {
  display: grid; grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; gap: 40px; } }

.channels { display: grid; gap: 8px; }
.channel {
  display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start;
  padding: 14px 16px;
  border-radius: var(--radius);
  transition: background 240ms cubic-bezier(.4,0,.2,1), transform 240ms cubic-bezier(.4,0,.2,1);
}
.channel:hover { background: var(--surface-2); transform: translateX(4px); }
.channel .ico {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--surface-3);
  display: grid; place-items: center;
  color: var(--accent-2);
  transition: color 240ms ease, transform 240ms ease, background 240ms ease;
}
.channel .ico svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.channel:hover .ico { background: var(--accent); color: var(--ink); transform: scale(1.06); }
.channel .label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); display: block; margin-bottom: 3px;
}
.channel a, .channel .val {
  font-weight: 500; color: var(--ink);
  word-break: break-word; overflow-wrap: anywhere;
}
.channel a:hover { color: var(--accent-2); }

/* Contact form */
.form-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: clamp(24px, 3vw, 36px);
  box-shadow: var(--shadow-md);
}
.form-card h2 { margin-top: 0; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 500;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select,
.field textarea {
  font: inherit;
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line-2);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(27, 94, 58, 0.18);
}
.field textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }

.field-check {
  display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start;
  padding: 12px 0;
}
.field-check input[type="checkbox"] {
  appearance: auto;
  -webkit-appearance: auto;
  width: 18px; height: 18px;
  min-width: 18px; min-height: 18px;
  padding: 0; border: 0; margin: 2px 0 0;
  accent-color: var(--accent-2);
}
.field-check label { font-family: var(--font-body); font-size: 13px; letter-spacing: 0; text-transform: none; color: var(--ink-2); line-height: 1.55; font-weight: 400; }
.field-check label a { color: var(--accent-2); text-decoration: underline; }

.honeypot { position: absolute; left: -9999px; top: -9999px; opacity: 0; pointer-events: none; }

.form-status { font-size: 14px; padding: 12px 14px; border-radius: 10px; margin-top: 10px; display: none; }
.form-status.is-ok { display: block; background: rgba(27, 94, 58, 0.10); color: var(--accent-2); border: 1px solid rgba(27, 94, 58, 0.25); }
.form-status.is-err { display: block; background: rgba(227, 116, 134, 0.12); color: #a13f50; border: 1px solid rgba(227, 116, 134, 0.30); }

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  background: var(--ink);
  color: var(--bg);
  padding: 72px 0 36px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 48px;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }

.site-footer h4 {
  font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent); font-family: var(--font-mono); font-weight: 500;
  margin-bottom: 14px;
}
.site-footer .brand { color: var(--bg); margin-bottom: 18px; }
.site-footer .brand .brand-mark { background: var(--accent); color: var(--ink); }
.site-footer p { color: rgba(235, 245, 238, 0.72); font-size: 14px; }
.site-footer a { color: rgba(235, 245, 238, 0.85); transition: color 200ms ease; }
.site-footer a:hover { color: var(--accent); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer ul a { font-size: 14px; }

.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px;
  padding-top: 30px;
  border-top: 1px solid rgba(235, 245, 238, 0.12);
  font-size: 13px;
  color: rgba(235, 245, 238, 0.55);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* =========================================================
   Cookie banner
   ========================================================= */
.cookie-banner {
  position: fixed;
  bottom: 16px; left: 16px; right: 16px;
  max-width: 520px;
  margin: 0 auto;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: 0 30px 60px -28px rgba(16, 20, 16, 0.45);
  padding: 20px;
  transform: translateY(140%);
  opacity: 0;
  transition: transform 280ms cubic-bezier(.2,.7,.2,1), opacity 240ms;
  z-index: 1100;
}
@media (min-width: 768px) {
  .cookie-banner { left: 24px; right: auto; max-width: 420px; }
}
.cookie-banner.is-visible { transform: translateY(0); opacity: 1; }
.cookie-banner h4 { margin: 0 0 6px; font-size: 16px; letter-spacing: -0.02em; }
.cookie-banner p { margin: 0 0 14px; font-size: 13.5px; color: var(--ink-2); line-height: 1.55; }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cookie-actions button {
  flex: 1 1 auto; min-height: 44px; padding: 10px 16px;
  font-size: 14px; font-weight: 500;
  border-radius: 10px;
  cursor: pointer; border: 1px solid transparent;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}
.cookie-actions [data-consent="accept"] { background: var(--ink); color: var(--surface); }
.cookie-actions [data-consent="accept"]:hover { background: var(--accent-2); }
.cookie-actions [data-consent="reject"] { background: var(--surface); color: var(--ink); border-color: var(--line-2); }
.cookie-actions [data-consent="reject"]:hover { background: var(--surface-2); border-color: var(--ink); }
.cookie-actions [data-consent="settings"] { background: transparent; color: var(--ink-2); padding: 10px 12px; }
.cookie-actions [data-consent="settings"]:hover { color: var(--ink); }

/* =========================================================
   Tables
   ========================================================= */
.table-scroll {
  display: block; width: 100%; max-width: 100%; min-width: 0;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.table-scroll > table {
  margin: 0 !important;
  min-width: 480px; width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface);
}
.table-scroll th, .table-scroll td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table-scroll th {
  background: var(--surface-3);
  font-weight: 500;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}
.table-scroll tr:last-child td { border-bottom: 0; }

:where(*:has(> .table-scroll), *:has(> * > .table-scroll), *:has(> * > * > .table-scroll)) { min-width: 0; }

/* =========================================================
   Reveal on scroll
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms cubic-bezier(.2,.7,.2,1), transform 600ms cubic-bezier(.2,.7,.2,1);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }
.reveal[data-delay="5"] { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .leaf, .pulse, .live-dot { animation: none !important; }
}

html.no-js .reveal { opacity: 1; transform: none; }

/* =========================================================
   Generic content (about / legal)
   ========================================================= */
.content-page {
  padding: 60px 0 80px;
}
.content-page .container { max-width: 880px; }
.content-page h1 { font-size: clamp(36px, 5vw, 56px); margin-bottom: 22px; }
.content-page h2 { font-size: clamp(22px, 2.6vw, 30px); margin-top: 48px; }
.content-page h3 { font-size: 18px; margin-top: 28px; }
.content-page p, .content-page li { color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.content-page ul, .content-page ol { padding-left: 22px; margin: 0 0 1.2em; }
.content-page li { margin-bottom: 0.4em; }
.content-page .meta {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--ink-3); padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 32px;
}

/* About / hakkımızda */
.about-hero {
  display: grid; grid-template-columns: 1fr; gap: 36px;
  padding: clamp(48px, 6vw, 80px) 0;
  align-items: center;
}
@media (min-width: 1024px) { .about-hero { grid-template-columns: 1fr 1fr; gap: 60px; } }
.about-hero h1 { font-size: clamp(40px, 5.4vw, 64px); }
.about-hero img {
  width: 100%; aspect-ratio: 4/5; object-fit: cover;
  border-radius: var(--radius-lg);
}
.values-grid {
  display: grid; grid-template-columns: 1fr; gap: 22px; margin-top: 36px;
}
@media (min-width: 768px) { .values-grid { grid-template-columns: repeat(3, 1fr); } }
.value-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  transition: transform 240ms ease, box-shadow 240ms ease;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-card .v-ico {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--surface-3); color: var(--accent-2);
  display: grid; place-items: center; margin-bottom: 14px;
}
.value-card .v-ico svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.value-card h3 { font-size: 18px; margin-bottom: 8px; }
.value-card p { font-size: 14px; margin: 0; }

.timeline {
  position: relative; padding-left: 32px;
  margin: 30px 0;
  border-left: 2px solid var(--line-2);
}
.timeline-item {
  position: relative;
  padding: 12px 0 18px 14px;
}
.timeline-item::before {
  content: "";
  position: absolute; left: -41px; top: 18px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--surface); border: 3px solid var(--accent-2);
}
.timeline-item .t-year {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent-2);
  margin-bottom: 4px;
}
.timeline-item h4 { margin: 0 0 6px; font-size: 17px; }
.timeline-item p { font-size: 14px; margin: 0; }

/* 404 */
.notfound {
  min-height: 60vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 80px 0;
}
.notfound .big {
  font-family: var(--font-mono); font-weight: 500;
  font-size: clamp(80px, 14vw, 180px);
  color: var(--accent);
  letter-spacing: -0.04em; line-height: 1;
  margin-bottom: 16px;
}

/* sitemap */
.sitemap-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .sitemap-grid { grid-template-columns: repeat(2, 1fr); } }
.sitemap-grid section h3 { margin-top: 0; }
.sitemap-grid ul { list-style: none; padding: 0; margin: 0; }
.sitemap-grid li { padding: 6px 0; }
.sitemap-grid a { color: var(--ink); border-bottom: 1px solid transparent; transition: border-color 200ms ease, color 200ms ease; }
.sitemap-grid a:hover { color: var(--accent-2); border-color: var(--accent-2); }

/* =========================================================
   Misc utility
   ========================================================= */
.center { text-align: center; }
.lead { font-size: 18px; color: var(--ink-2); }
.divider { height: 1px; background: var(--line); margin: 40px 0; }

/* footprint stagger */
.footprints {
  display: flex; gap: 8px; margin: 18px 0;
}
.footprints .step {
  width: 18px; height: 24px; border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  background: var(--accent-2);
  opacity: 0.2;
  animation: step-fade 2.4s ease-in-out infinite;
}
.footprints .step:nth-child(1) { animation-delay: 0s; }
.footprints .step:nth-child(2) { animation-delay: 0.3s; }
.footprints .step:nth-child(3) { animation-delay: 0.6s; }
.footprints .step:nth-child(4) { animation-delay: 0.9s; }
.footprints .step:nth-child(5) { animation-delay: 1.2s; }
@keyframes step-fade {
  0%, 100% { opacity: 0.15; transform: translateY(0); }
  50% { opacity: 0.85; transform: translateY(-4px); }
}

@media (max-width: 640px) {
  .output-card { position: static; }
  .output-stats { grid-template-columns: 1fr 1fr; }
  .output-stats .stat:nth-child(3) { grid-column: span 2; }
}

/* === Brand/logo hover effect (universal) === */
.brand, .logo, .footer-brand .brand {
  transition: color 220ms ease, opacity 220ms ease, transform 220ms ease, letter-spacing 220ms ease;
}
header .brand:hover,
header a.brand:hover,
.site-header .brand:hover,
.site-header a:hover,
.header-inner .brand:hover {
  color: var(--accent) !important;
  opacity: 1 !important;
  transform: translateY(-1px);
}
.brand:hover .brand__num,
.brand:hover .brand-mark { transform: scale(1.06); transition: transform 220ms ease; }
.brand:active, .logo:active { transform: translateY(0) scale(0.98); }