/* ==========================================================================
   Base / reset
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--sp-4));
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

main {
  flex: 1;
}

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

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}

button:disabled {
  cursor: not-allowed;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-snug);
  letter-spacing: -0.03em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

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

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--r-sm);
}

/* --- Yardımcılar --- */

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
}

.section--tint {
  background:
    linear-gradient(180deg, transparent, rgba(27, 29, 33, 0.55) 18%, rgba(27, 29, 33, 0.55) 82%, transparent);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: fixed;
  top: var(--sp-3);
  left: var(--sp-3);
  z-index: 1000;
  padding: var(--sp-2) var(--sp-4);
  background: var(--c-accent);
  color: var(--c-on-accent);
  border-radius: var(--r-sm);
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform var(--dur-base) var(--ease-out);
}

.skip-link:focus {
  transform: none;
}

.icon {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

.text-accent {
  color: var(--c-accent);
}

.text-muted {
  color: var(--c-muted);
}

/* --- Kaydırınca beliren içerik (JS ile .is-visible eklenir) --- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: calc(var(--reveal-delay, 0) * 90ms);
}

[data-reveal="1"] { --reveal-delay: 1; }
[data-reveal="2"] { --reveal-delay: 2; }
[data-reveal="3"] { --reveal-delay: 3; }
[data-reveal="4"] { --reveal-delay: 4; }

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Belirdikten sonra eğilen kartlar hızlı tepki versin */
.js [data-reveal].is-visible[data-tilt] {
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) ease;
  transition-delay: 0s;
}

@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;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}