/* ===== TOPBAR / NAV ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 300;
  transition: background var(--t), box-shadow var(--t), padding var(--t);
}
.topbar.is-scrolled {
  background: var(--surface-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  transition: opacity var(--t);
}
.brand:hover { opacity: 0.88; }

.brand__logo {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 17px;
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.brand__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav { display: flex; align-items: center; gap: 4px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav__link {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--t), background var(--t);
  white-space: nowrap;
}
.nav__link:hover { color: var(--primary); background: var(--bg-active); }
.nav__link--active { color: var(--primary); background: var(--bg-active); font-weight: 600; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
}

.nav__btn-login {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  border: 1.5px solid rgba(108, 99, 255, 0.35);
  background: transparent;
  transition: background var(--t), border-color var(--t), transform var(--t);
}
.nav__btn-login:hover {
  background: var(--bg-active);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.nav__cta {
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: var(--shadow-glow);
  transition: transform var(--t), box-shadow var(--t), filter var(--t);
}
.nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(108, 99, 255, 0.45);
  filter: brightness(1.05);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--t);
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 991px) {
  .nav__toggle { display: flex; }
  .nav__links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: var(--space-lg) var(--space-md) var(--space-3xl);
    background: rgba(246, 247, 251, 0.98);
    backdrop-filter: blur(16px);
    overflow-y: auto;
    z-index: 299;
  }
  .nav__links.is-open { display: flex; }
  .nav__link { padding: 14px 16px; font-size: 16px; }
  .nav__actions {
    flex-direction: column;
    margin: var(--space-md) 0 0;
    width: 100%;
  }
  .nav__btn-login,
  .nav__cta {
    width: 100%;
    justify-content: center;
    text-align: center;
    padding: 14px 20px;
    font-size: 16px;
  }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t);
  white-space: nowrap;
  min-height: 44px;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border-hover);
}

.btn--brand {
  background: var(--gradient-brand);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn--brand:hover {
  filter: brightness(1.06);
  box-shadow: 0 12px 36px rgba(108, 99, 255, 0.4);
}

.btn--outline {
  background: transparent;
  border-color: rgba(108, 99, 255, 0.35);
  color: var(--primary);
}
.btn--outline:hover { background: var(--bg-active); }

.btn--accent {
  background: var(--gradient-accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.3);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
}

.btn--lg { padding: 14px 28px; font-size: 15px; min-height: 52px; }
.btn--sm { padding: 7px 14px; font-size: 13px; min-height: 36px; }

.btn--green {
  background: var(--gradient-accent);
  border-color: transparent;
  color: #fff;
}

/* ===== CARDS & SECTIONS ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}
.section--alt {
  background: linear-gradient(180deg, #eef0ff 0%, #f6f7fb 100%);
  border-block: 1px solid rgba(108, 99, 255, 0.08);
}

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.2);
  margin-bottom: var(--space-md);
}

.section__title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  color: var(--text);
  position: relative;
  padding-left: 0;
}
.section__title::before {
  display: none;
}

.section__lead {
  color: var(--text-2);
  font-size: 16px;
  max-width: 560px;
  line-height: 1.65;
}

.section__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

/* ===== TILE / GRID ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
@media (max-width: 900px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

.tile {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--border-hover);
}
.tile__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-xs);
}
.tile__title { font-weight: 700; font-size: 15px; margin-bottom: 6px; }
.tile__desc { color: var(--text-2); font-size: 13px; line-height: 1.6; }

/* ===== PILL / FLASH ===== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-2);
}
.pill--brand {
  background: rgba(108, 99, 255, 0.1);
  border-color: rgba(108, 99, 255, 0.25);
  color: var(--primary);
}

.flash {
  margin: var(--space-md) 0 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
}
.flash--ok { background: rgba(34, 197, 94, 0.1); border-color: rgba(34, 197, 94, 0.25); color: #15803d; }
.flash--warn { background: rgba(245, 158, 11, 0.1); border-color: rgba(245, 158, 11, 0.25); color: #b45309; }
.flash--danger { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.25); color: #b91c1c; }

/* ===== FORMS ===== */
.form { display: grid; gap: var(--space-md); }
.form-group { display: grid; gap: 8px; }
.form-label { font-size: 13px; font-weight: 600; color: var(--text-2); }

.input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  min-height: 48px;
}
.input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.15);
}

.hint { font-size: 13px; color: var(--text-3); }
.hint a { color: var(--primary); font-weight: 600; }

/* ===== QUESTION (iç sayfalar) ===== */
.q {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}
.q__meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.q__title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.q__text { color: var(--text-2); font-size: 14px; line-height: 1.65; }
.q__actions { display: flex; gap: 8px; margin-top: var(--space-md); flex-wrap: wrap; }

.list { display: grid; gap: var(--space-md); }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  padding: var(--space-lg);
}
.stat {
  padding: var(--space-lg);
  border-radius: var(--radius);
  background: var(--bg-soft);
  text-align: center;
}
.stat__num {
  font-size: 28px;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat__label { color: var(--text-2); font-size: 12px; margin-top: 4px; font-weight: 500; }

.cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: var(--space-lg); }

.card--hero { padding: var(--space-2xl); position: relative; overflow: hidden; }

/* ===== FOOTER ===== */
.footer {
  margin-top: var(--space-3xl);
  background: linear-gradient(180deg, #0f172a 0%, #1e1b4b 100%);
  color: #e2e8f0;
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}
@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.footer__brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
}
.footer__logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}
.footer__brand { font-size: 18px; font-weight: 700; color: #fff; }
.footer__tagline {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: var(--space-lg);
}

.footer__heading {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #cbd5e1;
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  color: #94a3b8;
  font-size: 14px;
  padding: 6px 0;
  transition: color var(--t);
}
.footer__link:hover { color: #fff; }

.footer__social {
  display: flex;
  gap: 10px;
  margin-top: var(--space-md);
}
.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  font-size: 16px;
  transition: background var(--t), transform var(--t);
}
.footer__social a:hover {
  background: rgba(108, 99, 255, 0.4);
  transform: translateY(-2px);
}

.footer__stores {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-md);
}
.store-pill {
  display: inline-flex;
  flex-direction: column;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  transition: background var(--t), transform var(--t);
  min-width: 140px;
}
.store-pill:hover {
  background: rgba(108, 99, 255, 0.35);
  transform: translateY(-2px);
}
.store-pill__top { font-size: 10px; opacity: 0.75; }
.store-pill__name { font-size: 15px; font-weight: 700; }

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: 13px;
  color: #64748b;
}

.footer__contact {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.8;
}
.footer__contact a { color: #a5b4fc; }

/* ===== FLOW STEPS (soru çöz akışı) ===== */
.flow-steps {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.flow-steps__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 0;
  padding: 0;
  margin: 0;
}

.flow-steps__item { flex: 1 1 auto; min-width: 120px; }

.flow-steps__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  transition: background var(--t), color var(--t);
}
a.flow-steps__link:hover {
  background: var(--bg-active);
  color: var(--primary);
}

.flow-steps__item.is-active .flow-steps__link {
  color: var(--primary);
  background: rgba(108, 99, 255, 0.1);
}
.flow-steps__item.is-done .flow-steps__num {
  background: var(--accent);
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.35);
}

.flow-steps__num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-muted);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 800;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.flow-steps__item.is-active .flow-steps__num {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.flow-steps__sep {
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, rgba(108, 99, 255, 0.2), rgba(108, 99, 255, 0.05));
  flex: 0 0 24px;
  margin: 0 4px;
}
@media (max-width: 768px) {
  .flow-steps__sep { display: none; }
  .flow-steps__item { flex: 1 1 45%; }
}

.flow-steps__context {
  margin-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.grade-tile--active {
  border: 2px solid var(--primary) !important;
}