/* =========================================================
   İSG Eğitim Sistemi — site styles
   ========================================================= */

:root {
  --blue: #027bb8;
  --blue-bright: #02a8f2;
  --blue-deep: #0369a1;
  --blue-tint: #e0f2fe;
  --sky: #dbeafa;
  --sky-soft: #eef6fd;
  --ink: #0f1e3d;
  --text: #3d4a63;
  --muted: #64708a;
  --line: rgba(15, 30, 61, .1);
  --white: #fff;
  --ok: #1d7a47;

  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 32px;
  --shadow-sm: 0 2px 10px rgba(15, 30, 61, .06);
  --shadow: 0 24px 48px -24px rgba(15, 30, 61, .28);

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --section: clamp(64px, 9vw, 112px);
  --topbar-h: 92px;

  --font: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; color: var(--ink); line-height: 1.15; font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: clamp(2rem, 3.8vw, 3.1rem); }
h3 { font-size: 1.2rem; line-height: 1.3; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
[id] { scroll-margin-top: calc(var(--topbar-h) + 16px); }
/* Menu links land on the section's content, not on its (large) top padding */
.block[id] { scroll-margin-top: calc(var(--topbar-h) - var(--section) + 32px); }

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

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  padding: 10px 16px; border-radius: var(--radius-sm);
  background: var(--ink); color: var(--white); text-decoration: none;
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: 3px solid rgba(2, 168, 242, .55); outline-offset: 3px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border: 0; border-radius: 999px;
  font: 600 1rem/1.2 var(--font); text-decoration: none; cursor: pointer;
  transition: background-color .2s, transform .2s, box-shadow .2s;
}
.btn--primary { background: var(--blue); color: var(--white); box-shadow: 0 10px 24px -12px rgba(2, 132, 199, .8); }
.btn--primary:hover { background: var(--blue-deep); transform: translateY(-1px); }
.btn--lg { padding: 16px 34px; font-size: 1.08rem; }
.btn--block { width: 100%; }

/* ---------- section heading ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
  font-size: .95rem; font-weight: 600; letter-spacing: .02em; color: var(--blue-deep);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: currentColor; }
.eyebrow--pill { padding: 6px 14px; border-radius: 999px; background: var(--white); box-shadow: var(--shadow-sm); }
.eyebrow--pill::before { width: 8px; height: 8px; border-radius: 50%; background: var(--blue-bright); }

.heading { margin-bottom: clamp(32px, 5vw, 56px); }
.heading__text { margin-top: 16px; max-width: 60ch; }
.heading--center { text-align: center; max-width: 720px; margin-inline: auto; }
.heading--center .eyebrow { justify-content: center; }
.heading--split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 64px; align-items: end; }
.heading--split .heading__text { margin-top: 0; }

/* ---------- header ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--sky);
  border-bottom: 1px solid rgba(15, 30, 61, .08);
  transition: background-color .25s, box-shadow .25s;
}
.topbar.is-scrolled {
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  box-shadow: 0 6px 20px -16px rgba(15, 30, 61, .4);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--topbar-h); }
.brand img { width: 190px; }

.menu { flex: 1; display: flex; align-items: center; gap: 28px; margin-left: 40px; }
.menu__list { margin-inline: auto; }
.menu__list { display: flex; align-items: center; gap: 6px; }
.menu__link {
  display: block; padding: 8px 14px; border-radius: 999px;
  font-size: 1.06rem; font-weight: 500; color: var(--ink); text-decoration: none;
  transition: background-color .2s, color .2s;
}
.menu__link:hover { background: var(--blue-tint); color: var(--blue-deep); }

.burger { display: none; width: 44px; height: 44px; padding: 0; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--ink); cursor: pointer; position: relative; }
.burger span { position: absolute; left: 11px; width: 22px; height: 2px; border-radius: 2px; background: currentColor; transition: transform .3s, opacity .2s, top .3s; }
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 27px; }
.burger[aria-expanded="true"] span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ---------- intro (hero) ---------- */
.intro {
  padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 7vw, 88px);
  background: linear-gradient(180deg, var(--sky) 0, var(--sky) calc(100% - 120px), var(--white) 100%);
}
.intro__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.intro__title { font-size: clamp(2.4rem, 5vw, 3.9rem); line-height: 1.08; letter-spacing: -.02em; }
.intro__lead { margin-top: 20px; max-width: 34em; font-size: 1.15rem; }
.intro__actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.intro__media img { width: 100%; filter: drop-shadow(0 30px 40px rgba(15, 30, 61, .14)); }

.figures {
  margin-top: clamp(40px, 6vw, 64px);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.figures__item {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px;
  padding: 26px 20px; border-radius: var(--radius);
  background: var(--white); box-shadow: var(--shadow);
}
.figures__item img { width: 52px; height: 52px; margin-bottom: 8px; }
.figures__num { font-size: 2.2rem; font-weight: 700; line-height: 1.1; color: var(--blue); }
.figures__label { font-size: .95rem; color: var(--muted); }

/* ---------- generic section ---------- */
.block { padding: var(--section) 0; }
.block--tight { padding-block: clamp(40px, 6vw, 72px); }
.block--sky {
  background: linear-gradient(180deg, var(--white) 0, var(--sky) 100px, var(--sky) calc(100% - 100px), var(--white) 100%);
}

/* ---------- feature tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.tile {
  padding: 48px 32px 44px; border-radius: 28px; text-align: center;
  background: linear-gradient(180deg, var(--white) 0%, var(--sky-soft) 100%); border: 1px solid rgba(2, 132, 199, .14);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.tile:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(2, 132, 199, .3); }
.tile__icon { width: 112px; height: 112px; margin: 0 auto 24px; }
.tile h3 { font-size: clamp(1.3rem, 1.9vw, 1.5rem); }
.tile p { margin-top: 12px; font-size: 1.1rem; color: var(--muted); }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step {
  position: relative; padding: 32px 28px 30px; border-radius: var(--radius);
  background: var(--white); box-shadow: var(--shadow-sm); overflow: hidden;
}
.step__num {
  position: absolute; right: 18px; top: 6px;
  font-size: 4.5rem; font-weight: 700; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(2, 132, 199, .28);
}
.step h3 { padding-right: 96px; min-height: 2.6em; display: flex; align-items: flex-end; }
.step p:last-child { margin-top: 10px; color: var(--muted); }

/* ---------- two-column layouts ---------- */
.duo { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.duo--center { align-items: center; }
.duo--faq { grid-template-columns: .85fr 1.15fr; align-items: center; }
.duo--contact { grid-template-columns: 1fr 1fr; align-items: center; }
.duo__media img { width: 100%; }

/* compliance perks */
.perks { display: grid; gap: 22px; }
.perk { display: flex; gap: 18px; align-items: center; }
.perk img {
  width: 64px; height: 64px; flex: none; padding: 9px;
  border-radius: 18px; background: var(--white); box-shadow: var(--shadow);
}
.perk h3 { font-size: 1.15rem; }
.perk p { margin-top: 4px; color: var(--muted); }

/* compliance photo mosaic */
.duo--photos { grid-template-columns: 1fr 1fr; align-items: center; }
.mosaic { order: -1; column-count: 2; column-gap: 16px; }
.mosaic img {
  width: 100%; height: auto; margin-bottom: 16px; break-inside: avoid;
  border-radius: 18px; border: 4px solid var(--white); box-shadow: var(--shadow);
}

/* cloud facts */
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fact { padding: 20px 22px; border-radius: 16px; background: var(--white); border: 1px solid rgba(2, 132, 199, .15); }
.fact strong { display: block; font-size: 1.9rem; line-height: 1.1; color: var(--blue); }
.fact span { display: block; margin-top: 4px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.qa { display: grid; gap: 12px; }
.qa__item { border-radius: 16px; background: var(--sky-soft); border: 1px solid transparent; transition: background-color .25s, border-color .25s, box-shadow .25s; }
.qa__item.is-open, html:not(.js) .qa__item[open] { background: var(--white); border-color: rgba(2, 132, 199, .25); box-shadow: var(--shadow-sm); }
.qa__item summary {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 24px; cursor: pointer; list-style: none;
  font-weight: 600; font-size: 1.08rem; color: var(--ink);
}
.qa__item summary::-webkit-details-marker { display: none; }
.qa__item summary::after {
  content: ""; flex: none; width: 10px; height: 10px; margin-top: -4px;
  border-right: 2px solid var(--blue); border-bottom: 2px solid var(--blue);
  transform: rotate(45deg); transition: transform .25s, margin .25s;
}
.qa__item.is-open summary::after, html:not(.js) .qa__item[open] summary::after { transform: rotate(-135deg); margin-top: 4px; }
.qa__body { overflow: hidden; color: var(--muted); }
.qa__body p { padding: 0 24px 22px; }

/* ---------- mobile app banner ---------- */
.banner {
  display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: clamp(32px, 6vw, 80px);
}
.block--app h2 { font-size: clamp(2.2rem, 4.4vw, 3.5rem); }
.block--app .banner__text p:not(.eyebrow) { font-size: 1.12rem; }
.banner__img { order: -1; width: 100%; }
.banner__text p:not(.eyebrow) { margin-top: 14px; max-width: 32em; }
.stores { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.store {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 22px 11px 16px; border-radius: 999px;
  border: 2px solid var(--blue); background: var(--white); color: var(--blue);
  text-decoration: none; font-weight: 700; line-height: 1.15;
  transition: transform .2s, background-color .2s, color .2s;
}
.store:first-child { background: var(--blue); color: var(--white); }
.store:hover { transform: translateY(-2px); }
.store:first-child:hover { background: var(--blue-deep); border-color: var(--blue-deep); }
.store svg { width: 24px; height: 24px; flex: none; }
.store small { display: block; font-size: .72rem; font-weight: 500; opacity: .8; }

/* ---------- contact ---------- */
.reach { display: grid; gap: 18px; }
.reach li { display: flex; align-items: center; gap: 16px; }
.reach img { width: 44px; height: 44px; flex: none; }
.copyable {
  position: relative; font-size: clamp(1.15rem, 2vw, 1.4rem); font-weight: 600; color: var(--ink);
  text-decoration: none; border-bottom: 1px dashed transparent; transition: border-color .2s, color .2s;
}
.copyable:hover { color: var(--blue-deep); border-bottom-color: currentColor; }
.copyable::after {
  content: "Kopyalandı ✓"; position: absolute; left: 50%; bottom: calc(100% + 8px);
  transform: translate(-50%, 4px); padding: 6px 10px; border-radius: 8px;
  background: var(--ink); color: var(--white); font-size: .78rem; font-weight: 500; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.copyable.is-copied::after { opacity: 1; transform: translate(-50%, 0); }

.form-card {
  display: grid; gap: 18px; min-height: 690px; padding: clamp(24px, 4vw, 36px);
  border-radius: var(--radius-lg); background: var(--white);
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.form-card:empty { place-items: center; color: var(--muted); }
.form-card:empty::before { content: "Form yükleniyor…"; }
.form-card__note { padding: 12px 16px; border-radius: var(--radius-sm); background: var(--sky-soft); color: var(--text); font-size: .95rem; }
.form-card__note a { color: var(--blue-deep); }


/* ---------- footer ---------- */
.site-foot { padding-top: clamp(56px, 8vw, 88px); background: linear-gradient(180deg, var(--white) 0, var(--sky) 120px); }
.site-foot__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
.site-foot__brand img { width: 190px; }
.site-foot__brand > p:first-of-type { margin-top: 16px; max-width: 30ch; color: var(--muted); }
.site-foot__label { margin-top: 24px; font-weight: 600; color: var(--ink); }
.socials { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 10px; }
.socials a {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: var(--radius-sm);
  background: var(--white); color: var(--ink); box-shadow: var(--shadow-sm);
  transition: background-color .2s, color .2s, transform .2s;
}
.socials a:hover { background: var(--blue); color: var(--white); transform: translateY(-2px); }
.socials svg { width: 20px; height: 20px; }
.site-foot__title { margin-bottom: 18px; font-size: 1.15rem; }
.site-foot__col ul { display: grid; gap: 12px; }
.site-foot__col a { color: var(--text); text-decoration: none; transition: color .2s; }
.site-foot__col a:hover { color: var(--blue); }
.site-foot__contact li { display: flex; align-items: center; gap: 10px; }
.site-foot__contact svg { width: 20px; height: 20px; flex: none; color: var(--blue); }
.site-foot__bottom { margin-top: 48px; padding-block: 22px; border-top: 1px solid var(--line); text-align: center; font-size: .92rem; color: var(--muted); }
.site-foot__legal { margin-top: 6px; }
.site-foot__legal a { text-underline-offset: 3px; transition: color .2s; }
.site-foot__legal a:hover { color: var(--blue); }

/* ---------- entrance animation ---------- */
.js [data-reveal] {
  opacity: 0; transform: translateY(36px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.js [data-reveal="zoom"] { transform: scale(.96); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}

/* ---------- responsive ---------- */
.menu__link, .menu__cta { white-space: nowrap; }
@media (min-width: 992px) and (max-width: 1199px) {
  .brand img { width: 160px; }
  .menu { gap: 14px; margin-left: 16px; }
  .menu__link { padding: 8px 10px; font-size: 1rem; }
  .menu__cta { padding-inline: 20px; }
}
@media (max-width: 991px) {
  .burger { display: block; }
  .menu {
    position: absolute; left: var(--gutter); right: var(--gutter); top: calc(var(--topbar-h) - 6px);
    flex: none; margin-left: 0;
    flex-direction: column; align-items: stretch; gap: 16px;
    padding: 20px; border-radius: var(--radius);
    background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s, transform .2s, visibility .2s;
  }
  .topbar.is-open .menu { opacity: 1; visibility: visible; transform: none; }
  .menu__list { flex-direction: column; align-items: stretch; gap: 2px; margin-inline: 0; }
  .menu__link { padding: 13px 16px; border-radius: var(--radius-sm); font-size: 1.15rem; text-align: center; }
  .menu__cta { width: 100%; padding-block: 15px; }

  .intro__grid, .duo, .duo--faq, .duo--contact { grid-template-columns: 1fr; }
  .intro__text { text-align: center; }
  .intro__lead { margin-inline: auto; }
  .intro__actions { justify-content: center; }
  .intro__media { max-width: 640px; margin-inline: auto; }
  .heading--split { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .duo--faq .faq-photo { max-width: 420px; }
  .banner { grid-template-columns: 1fr; text-align: center; }
  .banner__img { order: 0; }
  .banner__text p:not(.eyebrow) { margin-inline: auto; }
  .stores { justify-content: center; }
  .banner__img { max-width: 520px; margin-inline: auto; }
  .site-foot__grid { grid-template-columns: 1fr 1fr; }
  .site-foot__brand { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .figures { grid-template-columns: 1fr 1fr; gap: 12px; }
  .figures__item { padding: 18px 12px; }
  .figures__item img { width: 40px; height: 40px; margin-bottom: 4px; }
  .figures__num { font-size: 1.55rem; }
  .tiles { grid-template-columns: 1fr; }
  .tile { padding: 32px 24px; }
  .tile__icon { width: 88px; height: 88px; margin-bottom: 16px; }
  .tile p { font-size: 1rem; }
  .perks { grid-template-columns: 1fr; }
  .mosaic, .faq-photo { display: none; }
  .site-foot__grid { gap: 32px 16px; }
}

@media (max-width: 479px) {
  body { font-size: 1rem; }
  .brand img { width: 150px; }
  .facts { gap: 12px; }
  .fact { padding: 16px; }
  .fact strong { font-size: 1.5rem; }
  .copyable { font-size: 1.1rem; }
  .site-foot__contact a { font-size: .95rem; white-space: nowrap; }
}