/*
  Teşvikli Fuarlar — premium kurumsal (marka #1a438d)
  Literata + Sora · fluid tipografi · sınırlı motion
*/

:root {
  --brand: #1a438d;
  --brand-deep: #111f4a;
  --brand-dark: #14306e;
  --brand-mid: #2d5cb5;
  --brand-soft: rgba(26, 67, 141, 0.12);
  --brand-glow: rgba(26, 67, 141, 0.45);
  --primary-navy: #1a438d;
  --accent-blue: #1a438d;
  --success-green: #0c6b52;
  --ink: #0b0f14;
  --ink-soft: #141c28;
  --muted: #5c6b7d;
  --line: rgba(26, 67, 141, 0.12);
  --paper: #f6f4ef;
  --paper-2: #ebe8e0;
  --white: #ffffff;
  --cream: #faf8f4;
  --danger: #b42318;
  --success: #0c6b52;

  --font-display: "Literata", "Georgia", serif;
  --font-ui: "Sora", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --step--2: clamp(0.74rem, 0.68rem + 0.22vw, 0.84rem);
  --step--1: clamp(0.84rem, 0.78rem + 0.28vw, 0.94rem);
  --step-0: clamp(0.95rem, 0.88rem + 0.35vw, 1.06rem);
  --step-1: clamp(1.06rem, 0.95rem + 0.45vw, 1.2rem);
  --step-2: clamp(1.28rem, 1.05rem + 0.85vw, 1.65rem);
  --step-3: clamp(1.55rem, 1.15rem + 1.35vw, 2.15rem);
  --step-4: clamp(1.95rem, 1.25rem + 2.4vw, 3.05rem);
  --step-5: clamp(2.35rem, 1.15rem + 4vw, 4.25rem);

  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.35rem;
  --s-6: 1.75rem;
  --s-7: 2.35rem;
  --s-8: 3.25rem;
  --s-9: 4.5rem;
  --s-10: 6.5rem;

  --r: 16px;
  --r-sm: 10px;
  --r-xs: 6px;
  --pill: 999px;

  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --shadow-xs: 0 1px 2px rgba(11, 15, 20, 0.04);
  --shadow-sm: 0 2px 12px rgba(11, 15, 20, 0.06);
  --shadow-md: 0 8px 28px rgba(11, 15, 20, 0.08);
  --shadow-lg: 0 24px 56px rgba(11, 15, 20, 0.12), 0 8px 20px rgba(26, 67, 141, 0.08);
  --shadow-xl: 0 36px 80px rgba(11, 15, 20, 0.16);
  --inset: inset 0 1px 0 rgba(255, 255, 255, 0.88);

  --header-h: 5.75rem;
  --logo-h-min: 52px;
  --logo-h-preferred: clamp(56px, 12vw, 92px);
  --logo-h-max: 92px;
  --top-h: 2.35rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

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

html {
  scroll-behavior: smooth;
}

::selection {
  background: rgba(26, 67, 141, 0.2);
  color: var(--ink);
}

.site-body {
  font-family: var(--font-ui);
  font-size: var(--step-0);
  line-height: 1.62;
  color: var(--ink-soft);
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  position: relative;
}

.site-body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-optical-sizing: auto;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-wrap: balance;
}

h4 {
  font-family: var(--font-ui);
}

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

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

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
}

.shell {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(var(--s-4), 4.5vw, var(--s-7));
}

/* ——— üst şerit ——— */
.top-bar {
  position: relative;
  z-index: 400;
  min-height: var(--top-h);
  background: linear-gradient(180deg, #070a10 0%, var(--ink) 100%);
  color: #8b96a8;
  font-size: var(--step--2);
  border-bottom: 1px solid rgba(26, 67, 141, 0.35);
}

.top-bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--brand-mid) 50%, transparent 95%);
  opacity: 0.9;
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
  min-height: var(--top-h);
  padding-block: var(--s-2);
}

.top-bar__tag {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #9aa6b8;
}

.top-bar__actions {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-wrap: wrap;
}

.top-bar__link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #e8ecf2;
  transition: color 0.25s var(--ease);
}

.top-bar__link:hover {
  color: #9ec5ff;
}

.top-bar__dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--brand-mid);
  box-shadow: 0 0 10px var(--brand-glow);
}

.top-bar__muted {
  font-size: 0.72rem;
  color: #6d7a8e;
}

/* ——— header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 300;
  background: rgba(246, 244, 239, 0.82);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 32px rgba(11, 15, 20, 0.04);
}

@supports (backdrop-filter: blur(16px)) {
  .site-header {
    backdrop-filter: saturate(1.15) blur(20px);
    -webkit-backdrop-filter: saturate(1.15) blur(20px);
  }
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-deep), var(--brand), var(--brand-mid));
  opacity: 0.95;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  min-height: var(--header-h);
  position: relative;
  flex-wrap: wrap;
}

.site-logo {
  z-index: 310;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  min-height: calc(var(--logo-h-max) + var(--s-3));
  padding: var(--s-2) 0;
  transition: opacity 0.2s;
}

.site-logo:hover {
  opacity: 0.88;
}

.site-logo img {
  display: block;
  width: auto;
  height: var(--logo-h-preferred);
  min-height: var(--logo-h-min);
  max-height: var(--logo-h-max);
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 4px 12px rgba(26, 67, 141, 0.15));
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.85rem;
  height: 2.85rem;
  cursor: pointer;
  z-index: 310;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0 0.65rem;
  box-shadow: var(--shadow-xs);
}

.nav-burger__line {
  display: block;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--brand), var(--brand-mid));
  border-radius: 2px;
  transition: transform 0.35s var(--ease-out), opacity 0.2s;
}

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.15rem 1.1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav__link {
  font-weight: 600;
  font-size: var(--step--2);
  color: var(--muted);
  padding: 0.5rem 0.7rem;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  transition: color 0.2s var(--ease), background 0.2s, border-color 0.2s;
}

.site-nav__link:hover {
  color: var(--brand);
  background: var(--brand-soft);
}

.site-nav__link.active {
  color: var(--brand);
  background: rgba(26, 67, 141, 0.08);
  border-color: rgba(26, 67, 141, 0.15);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.78rem 1.5rem;
  border: none;
  border-radius: var(--r-sm);
  cursor: pointer;
  color: var(--white);
  background: linear-gradient(165deg, var(--brand-mid) 0%, var(--brand) 42%, var(--brand-dark) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 4px 0 var(--brand-dark),
    0 14px 32px rgba(26, 67, 141, 0.35);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.25s, filter 0.2s;
}

.btn-primary:hover {
  filter: brightness(1.06);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 4px 0 #0f2858,
    0 20px 44px rgba(26, 67, 141, 0.4);
}

.btn-primary:active {
  transform: translateY(3px);
  box-shadow: 0 8px 20px rgba(26, 67, 141, 0.25);
}

.btn-ghost {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--step--1);
  padding: 0.72rem 1.25rem;
  border-radius: var(--r-sm);
  border: 2px solid rgba(26, 67, 141, 0.22);
  background: var(--white);
  color: var(--brand);
  box-shadow: var(--shadow-xs);
  transition: border-color 0.2s, box-shadow 0.25s var(--ease), transform 0.2s;
}

.btn-ghost:hover {
  border-color: var(--brand);
  box-shadow: 0 12px 28px rgba(26, 67, 141, 0.12);
}

@media (max-width: 899px) {
  .nav-burger {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    flex-basis: 100%;
    width: 100%;
    order: 3;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s var(--ease-out), padding 0.3s;
    border-top: 1px solid transparent;
  }

  .nav-toggle:checked ~ .site-nav {
    max-height: 24rem;
    padding: var(--s-4) 0 var(--s-5);
    border-top-color: var(--line);
  }

  .nav-toggle:checked ~ .nav-burger .nav-burger__line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .nav-toggle:checked ~ .nav-burger .nav-burger__line:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle:checked ~ .nav-burger .nav-burger__line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    padding: 0.9rem 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid rgba(26, 67, 141, 0.06);
  }

  .site-nav__link.active {
    background: var(--brand-soft);
  }

  .site-nav__cta {
    margin-top: var(--s-4);
  }

  .site-nav__cta .btn-primary {
    width: 100%;
  }
}

/* ——— hero ——— */
@keyframes hero-reveal {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  position: relative;
  padding-block: clamp(var(--s-7), 9vw, var(--s-10));
  overflow: clip;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 80% at 0% 50%, rgba(26, 67, 141, 0.11), transparent 55%),
    radial-gradient(circle 45vw at 100% 0%, rgba(17, 31, 74, 0.06), transparent 50%),
    linear-gradient(180deg, var(--cream) 0%, var(--paper) 45%, var(--paper-2) 100%);
}

.hero__bg::before {
  content: "";
  position: absolute;
  top: 8%;
  left: 3%;
  width: min(42vw, 520px);
  height: min(42vw, 520px);
  border: 1px solid rgba(26, 67, 141, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.hero__bg::after {
  content: "";
  position: absolute;
  bottom: 5%;
  right: 4%;
  width: 140px;
  height: 140px;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(26, 67, 141, 0.04) 8px,
    rgba(26, 67, 141, 0.04) 9px
  );
  border-radius: var(--r);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(var(--s-6), 5vw, var(--s-9));
  align-items: center;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * {
    animation: hero-reveal 0.85s var(--ease-out) backwards;
  }
  .hero-eyebrow {
    animation-delay: 0.05s;
  }
  .hero-copy h1 {
    animation-delay: 0.12s;
  }
  .hero-lead {
    animation-delay: 0.2s;
  }
  .hero-actions {
    animation-delay: 0.28s;
  }
  .hero-media {
    animation: hero-reveal 1s var(--ease-out) 0.15s backwards;
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: var(--s-4);
}

.hero-eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), transparent);
}

.hero-copy h1 {
  font-size: var(--step-5);
  font-weight: 700;
  max-width: 18ch;
  margin-bottom: var(--s-5);
  line-height: 1.02;
}

.hero-lead {
  font-size: var(--step-1);
  color: var(--muted);
  max-width: 38rem;
  margin-bottom: var(--s-6);
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-4);
  align-items: center;
}

.hero-media__frame {
  position: relative;
  border-radius: var(--r);
  overflow: hidden;
  background: var(--ink);
  box-shadow: var(--shadow-xl);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 97%);
}

.hero-media__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: inherit;
  z-index: 3;
  pointer-events: none;
}

.hero-media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(210deg, rgba(26, 67, 141, 0.2) 0%, transparent 45%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-media__frame img {
  width: 100%;
  height: clamp(300px, 40vw, 460px);
  object-fit: cover;
  opacity: 0.97;
}

.hero-media__badge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: var(--s-5) var(--s-6);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
  background: linear-gradient(0deg, rgba(7, 10, 16, 0.92) 0%, transparent);
}

/* ——— stats ——— */
@keyframes stat-shine {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}

.stats-strip {
  position: relative;
  background: var(--ink);
  color: #e8ecf2;
  overflow: hidden;
}

.stats-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    var(--brand-deep) 0%,
    var(--brand) 35%,
    var(--brand-mid) 70%,
    var(--brand-deep) 100%
  );
  background-size: 200% 200%;
}

@media (prefers-reduced-motion: no-preference) {
  .stats-strip::before {
    animation: stat-shine 18s linear infinite alternate;
  }
}

.stats-strip__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: stretch;
  gap: var(--s-4);
  padding-block: var(--s-6);
}

.stat-pill {
  flex: 1 1 11rem;
  text-align: center;
  padding: var(--s-4) var(--s-4);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  transition: transform 0.3s var(--ease-out), background 0.25s;
}

.stat-pill:hover {
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-3px);
}

.stat-pill strong {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  display: block;
  margin-bottom: var(--s-2);
  letter-spacing: 0.02em;
}

.stat-pill small {
  font-size: var(--step--2);
  opacity: 0.88;
  font-weight: 500;
}

@media (min-width: 900px) {
  .stats-strip__inner .stat-pill:not(:last-child) {
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    padding-right: var(--s-5);
    margin-right: var(--s-1);
  }
}

/* ——— metin blokları ——— */
.seo-content-block {
  position: relative;
  padding-block: clamp(var(--s-8), 8vw, var(--s-10));
  background: var(--white);
}

.seo-content-block.alt-bg {
  background: linear-gradient(180deg, var(--cream) 0%, var(--white) 55%);
}

.seo-inner {
  max-width: 46rem;
  margin-inline: auto;
}

.seo-content-block h2 {
  font-size: var(--step-3);
  color: var(--brand);
  margin-bottom: var(--s-5);
  padding-bottom: var(--s-4);
  position: relative;
}

.seo-content-block h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 4.5rem;
  height: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-mid), rgba(26, 67, 141, 0.15));
  border-radius: 2px;
}

.seo-content-block p {
  margin-bottom: var(--s-4);
  font-size: var(--step-0);
}

.step-card {
  margin-top: var(--s-6);
  padding: var(--s-6) var(--s-6) var(--s-6) calc(var(--s-6) + 6px);
  border-radius: var(--r);
  background: linear-gradient(135deg, var(--cream) 0%, var(--white) 100%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  position: relative;
  font-size: var(--step--1);
  line-height: 1.75;
}

.step-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--s-5);
  bottom: var(--s-5);
  width: 5px;
  border-radius: 0 var(--r-xs) var(--r-xs) 0;
  background: linear-gradient(180deg, var(--brand-mid), var(--brand));
}

/* ——— hesaplayıcı ——— */
.calc-section {
  position: relative;
  padding-block: clamp(var(--s-8), 9vw, var(--s-10));
  background: var(--ink-soft);
}

.calc-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(26, 67, 141, 0.15), transparent 55%),
    linear-gradient(180deg, #0f1724 0%, var(--ink-soft) 38%, #151d2c 100%);
  opacity: 1;
}

.calc-inner {
  position: relative;
  z-index: 1;
  max-width: 56rem;
  margin-inline: auto;
}

.calculator-panel {
  position: relative;
  padding: clamp(var(--s-6), 5vw, var(--s-8)) clamp(var(--s-5), 5vw, var(--s-8));
  border-radius: calc(var(--r) + 4px);
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(26, 67, 141, 0.06);
  overflow: hidden;
}

.calculator-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--brand-mid), var(--brand), var(--brand-dark));
  box-shadow: 4px 0 20px rgba(26, 67, 141, 0.25);
}

.calculator-panel::after {
  content: "2026";
  position: absolute;
  top: var(--s-5);
  right: var(--s-5);
  font-family: var(--font-display);
  font-size: clamp(4rem, 18vw, 7rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(26, 67, 141, 0.05);
  pointer-events: none;
  user-select: none;
}

.calc-panel-head {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
}

.calc-kicker {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.calc-intro {
  max-width: 38rem;
}

.calc-intro h2 {
  font-size: var(--step-2);
  color: var(--brand);
  margin-bottom: var(--s-3);
}

.calc-intro p {
  color: var(--muted);
  font-size: var(--step-0);
  line-height: 1.65;
}

.calc-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--s-5);
  align-items: end;
}

.calc-field label {
  display: block;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-2);
}

.calc-field .hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  font-size: var(--step--2);
  color: var(--muted);
  margin-top: var(--s-2);
  line-height: 1.45;
}

.calc-field input,
.calc-field select {
  width: 100%;
  padding: 0.92rem 1.1rem;
  border-radius: var(--r-sm);
  border: 1px solid rgba(26, 67, 141, 0.14);
  font-family: var(--font-ui);
  font-size: var(--step-0);
  background: var(--cream);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  box-shadow: var(--inset);
}

.calc-field input:hover,
.calc-field select:hover {
  border-color: rgba(26, 67, 141, 0.28);
}

.calc-field input:focus,
.calc-field select:focus {
  outline: none;
  background: var(--white);
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft), var(--inset);
}

.calc-field--button .btn-primary {
  width: 100%;
  height: 52px;
  text-transform: none;
  font-size: var(--step--1);
  letter-spacing: 0.04em;
}

.calc-error {
  position: relative;
  z-index: 1;
  margin-top: var(--s-4);
  padding: var(--s-4);
  border-radius: var(--r-sm);
  background: #fff5f5;
  border: 1px solid #f0b4b4;
  color: var(--danger);
  font-size: var(--step--1);
  display: none;
}

.calc-error.is-visible {
  display: block;
}

.calc-result {
  position: relative;
  z-index: 1;
  margin-top: var(--s-6);
  display: none;
  padding: var(--s-6);
  padding-right: clamp(3.5rem, 14vw, 5rem);
  border-radius: var(--r);
  background: linear-gradient(145deg, rgba(26, 67, 141, 0.1), var(--white));
  border: 2px solid var(--brand);
  box-shadow: 0 16px 40px rgba(26, 67, 141, 0.15);
}

.calc-result.is-visible {
  display: block;
}

.calc-result::before {
  content: "";
  position: absolute;
  top: var(--s-5);
  right: var(--s-5);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(12, 107, 82, 0.15);
  border: 2px solid var(--success);
}

.calc-result::after {
  content: "✓";
  position: absolute;
  top: calc(var(--s-5) + 0.35rem);
  right: calc(var(--s-5) + 0.55rem);
  font-size: 1rem;
  font-weight: 800;
  color: var(--success);
}

.calc-result__value {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  color: var(--brand);
}

.calc-result__note {
  margin-top: var(--s-3);
  color: var(--muted);
  font-size: var(--step--1);
  line-height: 1.55;
}

/* ——— fuar listesi ——— */
.section-kicker {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: var(--s-3);
}

.section-kicker--center {
  text-align: center;
}

.section-header {
  text-align: center;
  margin-block: clamp(var(--s-7), 7vw, var(--s-9)) var(--s-5);
}

.section-header h2 {
  font-size: var(--step-3);
  margin-bottom: var(--s-3);
}

.section-header p {
  color: var(--muted);
  max-width: 34rem;
  margin-inline: auto;
  font-size: var(--step-1);
}

.fair-list-section {
  background: var(--white);
  padding-bottom: var(--s-2);
}

.fair-list-section::before {
  content: "";
  display: block;
  height: 1px;
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-bottom: var(--s-7);
  padding-bottom: var(--s-2);
}

@media (max-width: 640px) {
  .filter-bar {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--s-3);
    mask-image: linear-gradient(90deg, #000 88%, transparent);
  }

  .filter-btn {
    flex-shrink: 0;
  }
}

.filter-btn {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--step--2);
  padding: 0.58rem 1.15rem;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--cream);
  color: var(--muted);
  cursor: pointer;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.25s, border-color 0.2s, color 0.2s, background 0.2s;
}

.filter-btn:hover {
  color: var(--brand);
  border-color: rgba(26, 67, 141, 0.28);
  transform: translateY(-2px);
}

.filter-btn.active {
  color: var(--white);
  background: linear-gradient(165deg, var(--brand-mid), var(--brand));
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 28px rgba(26, 67, 141, 0.32), var(--inset);
}

.fair-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 312px), 1fr));
  gap: var(--s-6) var(--s-5);
  padding-bottom: clamp(var(--s-8), 7vw, var(--s-10));
}

.fair-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--r);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s, border-color 0.25s;
}

.fair-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-deep), var(--brand), var(--brand-mid));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-out);
  z-index: 4;
}

.fair-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26, 67, 141, 0.22);
}

.fair-card:hover::before {
  transform: scaleX(1);
}

.fair-card.hide {
  display: none;
}

.card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ink);
}

.card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11, 15, 20, 0.52) 0%, transparent 42%);
  z-index: 1;
  pointer-events: none;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s var(--ease-out);
}

.fair-card:hover .card-image img {
  transform: scale(1.06);
}

.badge {
  position: absolute;
  top: var(--s-4);
  right: var(--s-4);
  z-index: 2;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.38rem 0.7rem;
  border-radius: var(--r-xs);
  color: var(--white);
  background: linear-gradient(180deg, #0e8f6a, var(--success-green));
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
}

.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--s-5) var(--s-5) var(--s-4);
  background: linear-gradient(180deg, var(--white) 0%, var(--cream) 120%);
}

.card-sector {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: var(--s-2);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  margin-bottom: var(--s-4);
  line-height: 1.15;
}

.card-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  margin-bottom: var(--s-4);
}

.detail-item {
  padding: var(--s-3);
  border-radius: var(--r-sm);
  background: var(--white);
  border: 1px solid rgba(26, 67, 141, 0.08);
}

.detail-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-1);
}

.detail-value {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--ink-soft);
}

.card-footer {
  margin-top: auto;
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-3);
}

.deadline {
  font-size: var(--step--2);
  font-weight: 700;
  color: var(--danger);
}

.card-link {
  font-family: var(--font-ui);
  font-size: var(--step--2);
  font-weight: 700;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.25s var(--ease-out), color 0.2s;
}

.card-link:hover {
  gap: 0.65rem;
  color: var(--brand-dark);
}

/* ——— SSS ——— */
.faq-section {
  padding-block: clamp(var(--s-8), 9vw, var(--s-10));
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 40%, var(--cream) 100%);
}

.faq-section h2 {
  text-align: center;
  font-size: var(--step-2);
  margin-bottom: var(--s-6);
}

.faq-inner {
  max-width: 44rem;
  margin-inline: auto;
}

.faq-item {
  margin-bottom: var(--s-3);
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: box-shadow 0.25s var(--ease);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  position: relative;
  padding: var(--s-5) var(--s-6);
  padding-right: 3.25rem;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: var(--step--1);
  cursor: pointer;
  list-style: none;
  background: linear-gradient(180deg, var(--cream), var(--white));
}

.faq-item summary::after {
  content: "";
  position: absolute;
  right: var(--s-5);
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  border-radius: var(--r-xs);
  border: 2px solid rgba(26, 67, 141, 0.22);
  background: var(--white);
}

.faq-item summary::before {
  content: "+";
  position: absolute;
  right: calc(var(--s-5) + 0.42rem);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--brand);
  z-index: 1;
  line-height: 1;
}

.faq-item[open] summary::before {
  content: "–";
  font-size: 1.5rem;
  margin-top: -2px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  padding: var(--s-4) var(--s-6) var(--s-5);
  margin: 0;
  font-size: var(--step--1);
  color: var(--muted);
  line-height: 1.68;
  border-top: 1px solid var(--line);
}

/* ——— footer ——— */
.site-footer {
  position: relative;
  padding-block: clamp(var(--s-8), 8vw, var(--s-10)) var(--s-6);
  background: linear-gradient(185deg, #05070c 0%, var(--ink) 35%, #0a1020 100%);
  color: #8f9bb0;
  border-top: 4px solid var(--brand);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 40% at 20% 0%, rgba(26, 67, 141, 0.18), transparent 55%);
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.72fr) minmax(0, 0.82fr);
  gap: var(--s-7) var(--s-8);
}

.footer-brand .footer-logo img {
  height: 48px;
  width: auto;
  margin-bottom: var(--s-4);
  filter: drop-shadow(0 6px 22px rgba(26, 67, 141, 0.45));
}

.footer-brand p {
  font-size: var(--step--1);
  line-height: 1.75;
  color: #9aa8bc;
  max-width: 30rem;
}

.footer-brand p.footer-secondary-line:empty {
  display: none;
}

.footer-col h3 {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #e8ecf2;
  margin-bottom: var(--s-4);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.55rem;
}

.footer-col a {
  font-size: var(--step--1);
  color: #a0adbf;
  transition: color 0.2s, transform 0.2s var(--ease);
  display: inline-block;
}

.footer-col a:hover {
  color: var(--white);
  transform: translateX(4px);
}

.footer-bottom {
  grid-column: 1 / -1;
  text-align: center;
  padding-top: var(--s-6);
  margin-top: var(--s-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #5a677a;
  line-height: 1.6;
}

/* ——— responsive ——— */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-eyebrow {
    justify-content: center;
  }

  .hero-eyebrow::before {
    display: none;
  }

  .hero-copy h1 {
    max-width: none;
    margin-inline: auto;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-media__frame {
    clip-path: none;
    max-width: 640px;
    margin-inline: auto;
  }

  .calc-intro,
  .calc-panel-head {
    text-align: center;
    margin-inline: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .stats-strip__inner .stat-pill {
    border-right: none !important;
    padding-right: var(--s-4) !important;
    margin-right: 0 !important;
  }
}

@media (max-width: 768px) {
  .top-bar__inner {
    justify-content: center;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .card-details {
    grid-template-columns: 1fr;
  }

  .stat-pill {
    flex: 1 1 45%;
  }
}

@media (max-width: 480px) {
  .hero-media__frame img {
    height: 260px;
  }

  .stat-pill {
    flex: 1 1 100%;
  }
}