:root {
  color-scheme: light;
  --qta-bg: #f7f9fc;
  --qta-bg-soft: #eef5ff;
  --qta-surface: #ffffff;
  --qta-surface-2: #f8fafc;
  --qta-text: #0f172a;
  --qta-muted: #64748b;
  --qta-border: rgba(15, 23, 42, .12);
  --qta-primary: #1d4ed8;
  --qta-primary-2: #4338ca;
  --qta-accent: #0891b2;
  --qta-success: #15803d;
  --qta-danger: #dc2626;
  --qta-warning: #d97706;
  --qta-shadow: 0 18px 48px rgba(15, 23, 42, .10);
  --qta-shadow-sm: 0 10px 28px rgba(15, 23, 42, .08);
  --qta-radius: 18px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --qta-bg: #08111f;
  --qta-bg-soft: #0d1b2e;
  --qta-surface: #111c2d;
  --qta-surface-2: #0b1626;
  --qta-text: #e5edf7;
  --qta-muted: #aab6c6;
  --qta-border: rgba(226, 232, 240, .16);
  --qta-primary: #60a5fa;
  --qta-primary-2: #818cf8;
  --qta-accent: #22d3ee;
  --qta-success: #4ade80;
  --qta-danger: #f87171;
  --qta-warning: #fbbf24;
  --qta-shadow: 0 22px 56px rgba(0, 0, 0, .38);
  --qta-shadow-sm: 0 14px 34px rgba(0, 0, 0, .30);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  background:
    radial-gradient(920px 420px at 8% -12%, rgba(29, 78, 216, .15), transparent 62%),
    radial-gradient(760px 360px at 96% -8%, rgba(8, 145, 178, .13), transparent 58%),
    linear-gradient(180deg, var(--qta-bg) 0%, var(--qta-bg-soft) 52%, var(--qta-bg) 100%);
  color: var(--qta-text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: var(--qta-primary);
}

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

.container-public {
  width: min(1160px, calc(100% - 32px));
  margin-inline: auto;
}

.text-muted-public {
  color: var(--qta-muted) !important;
}

.section-pad {
  padding: 72px 0;
}

.section-pad-sm {
  padding: 46px 0;
}

.section-title {
  max-width: 760px;
}

.section-title h2 {
  font-size: clamp(1.75rem, 2.5vw, 2.6rem);
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: .8rem;
}

.section-title p {
  color: var(--qta-muted);
  font-size: 1.04rem;
}

.qta-card {
  background: color-mix(in srgb, var(--qta-surface) 92%, transparent);
  border: 1px solid var(--qta-border);
  border-radius: var(--qta-radius);
  box-shadow: var(--qta-shadow-sm);
}

.qta-card-pad {
  padding: 1.35rem;
}

.qta-icon {
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 15px;
  background: rgba(29, 78, 216, .10);
  border: 1px solid rgba(29, 78, 216, .18);
  color: var(--qta-primary);
  font-size: 1.35rem;
}

.qta-icon.success {
  background: rgba(21, 128, 61, .10);
  border-color: rgba(21, 128, 61, .20);
  color: var(--qta-success);
}

.qta-icon.accent {
  background: rgba(8, 145, 178, .12);
  border-color: rgba(8, 145, 178, .20);
  color: var(--qta-accent);
}

.qta-icon.warning {
  background: rgba(217, 119, 6, .12);
  border-color: rgba(217, 119, 6, .20);
  color: var(--qta-warning);
}

.qta-btn {
  min-height: 44px;
  border-radius: 12px;
  font-weight: 700;
  display: inline-flex;
  gap: .45rem;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-outline-primary {
  color: var(--qta-primary);
  border-color: color-mix(in srgb, var(--qta-primary) 48%, transparent);
}

.btn-outline-primary:hover {
  background: var(--qta-primary);
  border-color: var(--qta-primary);
}

.qta-theme-btn {
  min-height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  border: 1px solid var(--qta-border);
  background: color-mix(in srgb, var(--qta-surface) 84%, transparent);
  color: var(--qta-text);
  padding: .42rem .78rem;
  font-weight: 700;
}

.qta-navbar {
  background: color-mix(in srgb, var(--qta-surface) 86%, transparent);
  border-bottom: 1px solid var(--qta-border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, .07);
}

.qta-navbar .navbar-brand {
  color: var(--qta-text);
  font-weight: 900;
}

.qta-navbar .navbar-brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.qta-navbar .brand-subtitle {
  color: var(--qta-muted);
  font-size: .82rem;
  font-weight: 700;
}

.qta-navbar .nav-link {
  color: var(--qta-muted);
  font-weight: 740;
  border-radius: 999px;
  padding: .48rem .76rem;
}

.qta-navbar .nav-link:hover,
.qta-navbar .nav-link.active {
  color: var(--qta-text);
  background: rgba(29, 78, 216, .09);
}

.qta-navbar .nav-link.active {
  color: var(--qta-primary);
}

.qta-avatar {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(29, 78, 216, .12);
  border: 1px solid rgba(29, 78, 216, .20);
  color: var(--qta-primary);
  font-weight: 900;
}

.qta-dropdown {
  min-width: 280px;
  border: 1px solid var(--qta-border);
  border-radius: 16px;
  box-shadow: var(--qta-shadow);
  background: var(--qta-surface);
}

.qta-dropdown .dropdown-item {
  border-radius: 12px;
  font-weight: 700;
}

.hero-public {
  padding: clamp(54px, 8vw, 92px) 0 58px;
  position: relative;
}

.hero-public h1 {
  max-width: 820px;
  font-size: clamp(2.1rem, 4.6vw, 4.8rem);
  line-height: 1.02;
  font-weight: 860;
  margin-bottom: 1.1rem;
}

.hero-public .lead {
  max-width: 720px;
  color: var(--qta-muted);
  font-size: clamp(1.05rem, 1.3vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.65rem;
}

.hero-mockup {
  padding: 1rem;
  min-height: 420px;
  background:
    linear-gradient(135deg, rgba(29, 78, 216, .12), rgba(8, 145, 178, .08)),
    var(--qta-surface);
}

.mockup-window {
  height: 100%;
  padding: 1.15rem;
  background: var(--qta-surface);
  border: 1px solid var(--qta-border);
  border-radius: 16px;
  box-shadow: var(--qta-shadow-sm);
}

.mockup-line {
  height: 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--qta-muted) 22%, transparent);
}

.mockup-status {
  color: var(--qta-success);
  background: rgba(21, 128, 61, .10);
  border: 1px solid rgba(21, 128, 61, .18);
  border-radius: 999px;
  padding: .36rem .65rem;
  font-weight: 800;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.trust-item {
  min-height: 92px;
  padding: 1rem;
  border-radius: 16px;
  background: color-mix(in srgb, var(--qta-surface) 86%, transparent);
  border: 1px solid var(--qta-border);
}

.feature-card,
.step-card,
.target-card,
.contact-card {
  height: 100%;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.feature-card:hover,
.step-card:hover,
.target-card:hover,
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--qta-shadow);
  border-color: color-mix(in srgb, var(--qta-primary) 28%, var(--qta-border));
}

.step-number {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(29, 78, 216, .10);
  color: var(--qta-primary);
  font-weight: 900;
}

.cta-band {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: 24px;
  color: #ffffff;
  background: linear-gradient(135deg, #1e40af, #0f766e);
  box-shadow: var(--qta-shadow);
}

.accordion-item {
  color: var(--qta-text);
  background: transparent;
  border: 0;
  margin-bottom: .75rem;
}

.accordion-button {
  color: var(--qta-text);
  background: var(--qta-surface);
  border: 1px solid var(--qta-border);
  border-radius: 14px !important;
  box-shadow: none !important;
  font-weight: 760;
}

.accordion-body {
  color: var(--qta-muted);
  background: var(--qta-surface);
  border: 1px solid var(--qta-border);
  border-radius: 14px;
  margin-top: .5rem;
}

.qta-swiper {
  padding: .25rem .25rem 2.7rem;
}

.swiper-slide {
  height: auto;
}

.swiper-button-next,
.swiper-button-prev {
  width: 38px;
  height: 38px;
  color: var(--qta-primary);
}

.swiper-button-next::after,
.swiper-button-prev::after {
  font-size: 1rem;
  font-weight: 900;
}

.timeline-list {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}

.timeline-dot {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(29, 78, 216, .11);
  color: var(--qta-primary);
  border: 1px solid rgba(29, 78, 216, .20);
  font-weight: 900;
}

.form-control,
.form-select,
.input-group-text {
  color: var(--qta-text);
  background-color: color-mix(in srgb, var(--qta-surface) 88%, transparent);
  border-color: var(--qta-border);
  border-radius: 12px;
}

.form-control:focus,
.form-select:focus {
  border-color: color-mix(in srgb, var(--qta-primary) 55%, var(--qta-border));
  box-shadow: 0 0 0 .22rem rgba(29, 78, 216, .13);
}

.form-floating > label {
  color: var(--qta-muted);
}

.map-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(29, 78, 216, .10), rgba(8, 145, 178, .10)),
    var(--qta-surface);
}

.login-shell {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr);
  gap: 1.5rem;
  align-items: stretch;
  padding: 42px 0 64px;
}

.login-brand-panel {
  padding: clamp(1.5rem, 4vw, 3rem);
  background:
    linear-gradient(140deg, rgba(29, 78, 216, .95), rgba(15, 118, 110, .88)),
    #1d4ed8;
  color: #ffffff;
  border-radius: 24px;
  box-shadow: var(--qta-shadow);
}

.login-card {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.role-switcher {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .55rem;
}

.role-option {
  min-height: 78px;
  border: 1px solid var(--qta-border);
  border-radius: 14px;
  background: var(--qta-surface);
  color: var(--qta-text);
  text-align: left;
  padding: .85rem;
  font-weight: 800;
}

.role-option span {
  display: block;
  color: var(--qta-muted);
  font-size: .76rem;
  font-weight: 700;
}

.role-option.active {
  color: var(--qta-primary);
  border-color: color-mix(in srgb, var(--qta-primary) 45%, var(--qta-border));
  background: rgba(29, 78, 216, .09);
  box-shadow: 0 0 0 .2rem rgba(29, 78, 216, .10);
}

.caps-warning {
  color: var(--qta-danger);
  font-size: .88rem;
  margin-top: .45rem;
}

.verify-layout {
  display: grid;
  grid-template-columns: minmax(320px, .88fr) minmax(0, 1.12fr);
  gap: 1.35rem;
  align-items: start;
}

.verify-tabs .nav-link {
  min-height: 48px;
  border-radius: 14px;
  color: var(--qta-text);
  border: 1px solid var(--qta-border);
  background: var(--qta-surface);
  font-weight: 800;
}

.verify-tabs .nav-link.active {
  background: rgba(29, 78, 216, .10);
  color: var(--qta-primary);
  border-color: rgba(29, 78, 216, .30);
}

#reader {
  width: 100%;
  min-height: 300px;
}

#reader video {
  border-radius: 14px;
}

.upload-drop {
  min-height: 180px;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px dashed color-mix(in srgb, var(--qta-primary) 44%, var(--qta-border));
  border-radius: 16px;
  background: rgba(29, 78, 216, .05);
}

.status-banner {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid var(--qta-border);
  background: var(--qta-surface);
}

.status-banner.status-valid {
  border-left: 6px solid var(--qta-success);
}

.status-banner.status-invalid {
  border-left: 6px solid var(--qta-danger);
}

.status-banner.status-pending {
  border-left: 6px solid var(--qta-muted);
}

.result-empty {
  min-height: 260px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--qta-muted);
}

.fact {
  padding: .85rem;
  border: 1px solid var(--qta-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--qta-surface-2) 70%, transparent);
}

.qta-footer {
  padding: 56px 0 28px;
  background: color-mix(in srgb, var(--qta-surface) 88%, transparent);
  border-top: 1px solid var(--qta-border);
}

.qta-footer h3,
.qta-footer h4 {
  font-size: 1rem;
  font-weight: 850;
}

.qta-footer a {
  color: var(--qta-muted);
  text-decoration: none;
}

.qta-footer a:hover {
  color: var(--qta-primary);
  text-decoration: underline;
}

.footer-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.back-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 1030;
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  border-radius: 14px;
  border: 1px solid var(--qta-border);
  background: var(--qta-surface);
  color: var(--qta-text);
  box-shadow: var(--qta-shadow-sm);
  transition: opacity .18s ease, transform .18s ease;
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  transform: translateY(-2px);
}

@media (max-width: 1199.98px) {
  .role-switcher {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991.98px) {
  .qta-navbar .navbar-collapse {
    margin-top: .75rem;
    padding: .75rem;
    border: 1px solid var(--qta-border);
    border-radius: 18px;
    background: var(--qta-surface);
    box-shadow: var(--qta-shadow-sm);
  }

  .trust-strip,
  .verify-layout,
  .login-shell {
    grid-template-columns: 1fr;
  }

  .login-shell {
    padding-top: 22px;
  }
}

@media (max-width: 575.98px) {
  .container-public {
    width: min(100% - 22px, 1160px);
  }

  .section-pad {
    padding: 48px 0;
  }

  .hero-public {
    padding: 42px 0 36px;
  }

  .hero-public h1 {
    font-size: 2.05rem;
  }

  .hero-actions .btn,
  .hero-actions a {
    width: 100%;
  }

  .trust-strip {
    gap: .75rem;
  }

  .role-switcher {
    display: flex;
    overflow-x: auto;
    padding-bottom: .35rem;
    scroll-snap-type: x mandatory;
  }

  .role-option {
    min-width: 156px;
    scroll-snap-align: start;
  }

  .qta-card-pad {
    padding: 1rem;
  }

  .qta-theme-btn span {
    display: none;
  }
}

@media print {
  .qta-navbar,
  .qta-footer,
  .hero-public,
  .verify-tools,
  .back-top,
  .btn,
  .nav {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .qta-card,
  .status-banner {
    box-shadow: none !important;
    border-color: #dddddd !important;
  }
}