/* ==========================================================================
   X QR — site stylesheet. Loaded AFTER Bootstrap 5.3 and Font Awesome.
   Tokens: X IT brand palette (xitbd.com) — teal leads, red for actions only
   Sections: tokens · base · nav · hero · footer · cards · forms · buttons
             · chips · accordion · tables · qr tile · currency · privacy · responsive
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --teal: #2C5F5A;  --teal-600: #234B47;  --teal-700: #183633;
  --red: #E12D2A;  --red-600: #C61F22;
  --ink: #14211F;  --ink-soft: #3D4D4A;  --muted: #6D7C79;
  --line: #E6ECEA;  --mist: #F4F8F7;  --mist-2: #EEF4F2;  --paper: #FFFFFF;  --amber: #F5A623;
  --radius: 18px;  --radius-lg: 26px;
  --shadow-card: 0 1px 2px rgba(20,33,31,.04), 0 20px 50px -20px rgba(20,33,31,.18);
  --shadow-nav: 0 8px 30px rgba(20,33,31,.06);
  --ff-head: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ff-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Bootstrap theme → brand, so .text-primary / .text-success etc. follow without markup edits */
  --bs-primary: #2C5F5A;  --bs-primary-rgb: 44, 95, 90;
  --bs-success: #2C5F5A;  --bs-success-rgb: 44, 95, 90;
  --bs-danger: #E12D2A;  --bs-danger-rgb: 225, 45, 42;
  --bs-body-color: #14211F;  --bs-body-color-rgb: 20, 33, 31;
  --bs-body-bg: #F4F8F7;  --bs-body-font-family: var(--ff-body);
  --bs-link-color: #2C5F5A;  --bs-link-color-rgb: 44, 95, 90;
  --bs-link-hover-color: #234B47;  --bs-link-hover-color-rgb: 35, 75, 71;
  --bs-border-color: #E6ECEA;
  --bs-secondary-color: #6D7C79;
}

/* ---------- base ---------- */
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--mist);
  position: relative;
  min-height: 100vh;
  line-height: 1.6;
}
/* two faint brand glows behind the hero */
body::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 0; height: 520px;
  pointer-events: none; z-index: 0;
  background:
    radial-gradient(640px 300px at 12% 0%, rgba(44,95,90,.18), transparent 60%),
    radial-gradient(560px 280px at 88% 0%, rgba(225,45,42,.14), transparent 60%);
}
body > * { position: relative; z-index: 1; }

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--ff-head);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
h2, .h2 { font-size: 1.75rem; }
h3, .h3 { font-size: 1.25rem; }
p { color: var(--ink-soft); }
a { color: var(--teal); }
a:hover { color: var(--teal-600); }
.text-muted { color: var(--muted) !important; }
.text-secondary { color: var(--muted) !important; }

/* ---------- nav ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 1030;
  margin: 0; padding: 0;
}
.site-nav .navbar {
  background: rgba(255,255,255,.86);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-nav);
  padding: .55rem 0;
}
.site-nav .navbar-brand {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--ff-head); font-weight: 700; font-size: 1.15rem;
  color: var(--ink); letter-spacing: -.01em;
}
.site-nav .navbar-brand img { height: 32px; width: auto; display: block; }
.site-nav .navbar-brand .wordmark span { color: var(--teal); }
.site-nav .nav-link {
  color: var(--ink-soft); font-weight: 500;
  padding: .45rem .95rem; border-radius: 999px;
  transition: background .15s, color .15s;
}
.site-nav .nav-link:hover { color: var(--teal); background: var(--mist-2); }
.site-nav .nav-link.active { color: var(--teal); font-weight: 700; background: var(--mist-2); }
.site-nav .navbar-toggler { border: 1px solid var(--line); border-radius: 12px; padding: .35rem .6rem; }
.site-nav .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(44,95,90,.15); }

/* ---------- hero ---------- */
.hero { text-align: center; max-width: 760px; margin: 0 auto; padding: 3rem 1rem 2rem; }
.hero-eyebrow {
  display: inline-block; margin-bottom: 1rem;
  font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--teal); background: rgba(44,95,90,.08); border-radius: 999px; padding: .35rem .85rem;
}
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); line-height: 1.1; margin-bottom: 1rem; }
.hero h1 .hl { display: block; color: var(--teal); }
.hero-lead { font-size: 1.05rem; color: var(--ink-soft); max-width: 600px; margin: 0 auto 1.25rem; }

/* ---------- chips ---------- */
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; }
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--paper); border: 1px solid var(--line); border-radius: 999px;
  color: var(--teal); font-weight: 600; font-size: .8rem; padding: .4rem .9rem;
}
.chip i { font-size: .7rem; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #CFE0DC; text-align: center; padding: 2rem 1rem 1.5rem; margin-top: 3rem; }
.site-footer .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .25rem 1.5rem; margin-bottom: 1rem; }
.site-footer .footer-links a { color: #CFE0DC; font-weight: 500; font-size: .9rem; text-decoration: none; }
.site-footer .footer-links a:hover { color: #FFFFFF; }
.site-footer p { color: #9FB3AE; font-size: .85rem; margin: 0; }
.site-footer a.brand-link { color: #FF7A76; font-weight: 600; text-decoration: none; }
.site-footer a.brand-link:hover { color: #FFFFFF; }

/* ---------- cards ---------- */
.main-card, .card.main-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.card-title-dot {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--ff-head); font-size: 1.25rem; font-weight: 700; color: var(--ink);
  margin-bottom: 1.25rem;
}
.panel { background: var(--mist); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
.panel-label { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: .75rem; }
.link-card {
  display: block; padding: 1.1rem 1.25rem;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--ink); font-weight: 600; text-decoration: none; box-shadow: var(--shadow-card);
  transition: transform .15s, border-color .15s, color .15s;
}
.link-card:hover { border-color: var(--teal); color: var(--teal); }
@media (prefers-reduced-motion: no-preference) {
  .link-card:hover { transform: translateY(-2px); }
}

/* ---------- mode switch (Link/Text vs Wi-Fi) ---------- */
.mode-switch { display: inline-flex; gap: 4px; padding: 4px; background: var(--mist); border: 1px solid var(--line); border-radius: 999px; }
.mode-switch .mode-btn { border: 0; border-radius: 999px; padding: .45rem 1rem; font-size: .9rem; font-weight: 600; color: var(--ink-soft); background: transparent; box-shadow: none; }
.mode-switch .mode-btn:hover { color: var(--teal); }
.mode-switch .mode-btn.active { background: var(--paper); color: var(--teal); box-shadow: 0 1px 2px rgba(20,33,31,.08); }
.mode-switch .mode-btn:focus-visible { outline: 0; box-shadow: 0 0 0 3px rgba(44,95,90,.25); }
.form-check-panel { display: flex; align-items: center; gap: .6rem; min-height: 44px; padding: 0 1rem; background: var(--mist); border: 1px solid var(--line); border-radius: var(--radius); }
.form-check-panel .form-check-input { margin: 0; width: 1.15em; height: 1.15em; border-color: var(--muted); }
.form-check-panel .form-check-input:checked { background-color: var(--teal); border-color: var(--teal); }
.form-check-panel .form-check-input:focus { box-shadow: 0 0 0 3px rgba(44,95,90,.15); border-color: var(--teal); }
.form-check-panel .form-check-label { font-weight: 600; color: var(--ink-soft); }

/* ---------- forms ---------- */
.form-label { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: .4rem; }
.form-control, .form-select {
  background-color: var(--mist); border: 1px solid var(--line); border-radius: var(--radius);
  min-height: 44px; color: var(--ink); font-family: var(--ff-body);
}
.form-control:focus, .form-select:focus { background-color: var(--paper); border-color: var(--teal); box-shadow: 0 0 0 3px rgba(44,95,90,.15); color: var(--ink); }
.form-control::placeholder { color: #9AA8A5; }
.form-text { color: var(--muted); }
.input-group-text { background: var(--mist-2); border: 1px solid var(--line); color: var(--muted); }
.input-group > :first-child { border-top-left-radius: var(--radius); border-bottom-left-radius: var(--radius); }
.input-group > :last-child { border-top-right-radius: var(--radius); border-bottom-right-radius: var(--radius); }
.input-group .form-floating > .form-control { border-radius: 0; }
.input-group .form-floating:last-child > .form-control { border-top-right-radius: var(--radius); border-bottom-right-radius: var(--radius); }
.form-floating > label { color: var(--muted); }
.form-floating > .form-control:focus ~ label::after, .form-floating > .form-control:not(:placeholder-shown) ~ label::after { background-color: var(--paper); }
.form-control::file-selector-button { background-color: var(--mist-2); color: var(--ink-soft); border-radius: 0; margin: -.375rem .75rem -.375rem -.75rem; padding: .6rem .9rem; }
.form-control:hover:not(:disabled):not([readonly])::file-selector-button { background-color: var(--line); }

/* ---------- buttons ---------- */
.btn { border-radius: var(--radius); font-weight: 600; }
.btn-sm { border-radius: 12px; }
.btn-primary {
  --bs-btn-color: #fff; --bs-btn-bg: var(--red); --bs-btn-border-color: transparent;
  --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--red-600); --bs-btn-hover-border-color: transparent;
  --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--red-600); --bs-btn-active-border-color: transparent;
  --bs-btn-focus-shadow-rgb: 225, 45, 42;
  background-image: linear-gradient(90deg, var(--red), var(--red-600));
  padding: .8rem 1.5rem;
  box-shadow: 0 10px 24px -8px rgba(225,45,42,.55);
}
.btn-primary:hover { box-shadow: 0 12px 28px -8px rgba(225,45,42,.6); }
.btn-primary:active, .btn-primary:focus-visible { background-image: none; }
.btn-generate { padding: .9rem 1.5rem; letter-spacing: .03em; }
.btn-outline-success, .btn-outline-dark {
  --bs-btn-color: #fff; --bs-btn-bg: var(--teal); --bs-btn-border-color: var(--teal);
  --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--teal-600); --bs-btn-hover-border-color: var(--teal-600);
  --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--teal-600); --bs-btn-active-border-color: var(--teal-600);
  --bs-btn-focus-shadow-rgb: 44, 95, 90;
  padding: .65rem 1.25rem;
}
.btn-outline-danger {
  --bs-btn-color: var(--red); --bs-btn-bg: var(--paper); --bs-btn-border-color: rgba(225,45,42,.35);
  --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--red); --bs-btn-hover-border-color: var(--red);
  --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--red); --bs-btn-active-border-color: var(--red);
  --bs-btn-focus-shadow-rgb: 225, 45, 42;
}
.btn-outline-primary {
  --bs-btn-color: var(--teal); --bs-btn-border-color: var(--teal);
  --bs-btn-hover-color: #fff; --bs-btn-hover-bg: var(--teal); --bs-btn-hover-border-color: var(--teal);
  --bs-btn-active-color: #fff; --bs-btn-active-bg: var(--teal); --bs-btn-active-border-color: var(--teal);
  --bs-btn-focus-shadow-rgb: 44, 95, 90;
}
.btn-reset { background: var(--paper); border: 1px solid var(--line); color: var(--muted); }
.btn-reset:hover { background: var(--mist-2); color: var(--red); border-color: var(--line); }

/* ---------- accordion (FAQ) ---------- */
.accordion {
  --bs-accordion-border-color: var(--line);
  --bs-accordion-btn-focus-box-shadow: 0 0 0 3px rgba(44,95,90,.25);
  --bs-accordion-active-bg: var(--mist-2);
  --bs-accordion-active-color: var(--teal);
  --bs-accordion-btn-color: var(--ink);
  --bs-accordion-border-radius: var(--radius);
  --bs-accordion-inner-border-radius: calc(var(--radius) - 1px);
}
.accordion-button { font-family: var(--ff-head); font-weight: 600; }
.accordion-button:not(.collapsed) { box-shadow: none; }
.accordion-body { color: var(--ink-soft); line-height: 1.7; }

/* ---------- tables ---------- */
.table-custom { --bs-table-bg: var(--paper); --bs-table-hover-bg: var(--mist); margin: 0; }
.table-custom .table-light { --bs-table-bg: var(--mist-2); --bs-table-color: var(--muted); }
.table-custom thead th { font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; font-weight: 700; color: var(--muted); border-bottom: 1px solid var(--line); }
.table-custom td { vertical-align: middle; font-weight: 500; color: var(--ink); border-color: var(--line); padding: .75rem .5rem; }

/* ---------- reading sections (SEO / policy) ---------- */
.seo-column section h2, .seo-content h2 { color: var(--teal); font-size: 1.6rem; margin-bottom: 1rem; }
.seo-content h3 { font-size: 1.15rem; margin-top: 1.75rem; }
.seo-column p, .seo-column li, .seo-content p, .seo-content li { color: var(--ink-soft); line-height: 1.7; }
.seo-column ul, .seo-column ol, .seo-content ul, .seo-content ol { padding-left: 1.25rem; }
.seo-column li::marker, .seo-content li::marker { color: var(--teal); font-weight: 700; }
.policy-content h2 { color: var(--teal); font-size: 1.35rem; margin-top: 2rem; }
.policy-content h2:first-of-type { margin-top: 0; }
.policy-content p, .policy-content li { color: var(--ink-soft); line-height: 1.75; }
.policy-content ul { margin-bottom: 1rem; }
.last-updated { color: var(--muted); font-size: .9rem; }

/* ---------- QR preview tile ---------- */
.qr-tile {
  width: 100%; min-height: 280px;
  display: flex; align-items: center; justify-content: center;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; box-shadow: inset 0 1px 3px rgba(20,33,31,.06);
}
#qrcode { display: flex; justify-content: center; align-items: center; max-width: 100%; }
#qrcode img, #qrcode canvas {
  max-width: 100% !important; height: auto !important;
  border: 8px solid var(--paper); border-radius: 10px;
  box-shadow: 0 10px 30px -12px rgba(20,33,31,.35);
}
.qr-placeholder { color: #9AA8A5; text-align: center; font-size: .9rem; padding: 2rem 1rem; }
.qr-placeholder i { color: var(--line); }

/* ---------- currency page ---------- */
.calculator-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); overflow: hidden; }
.result-display { background: linear-gradient(135deg, var(--teal), var(--teal-700)); color: #FFFFFF; padding: 2.25rem 1.25rem; text-align: center; }
.result-label { opacity: .85; font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; }
.result-amount { font-family: var(--ff-head); font-size: 2.5rem; font-weight: 700; letter-spacing: .5px; }
.form-section { padding: 1.5rem; }
.rate-table-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); overflow: hidden; }
.rate-header { background: var(--mist-2); color: var(--ink); padding: 1rem 1.25rem; display: flex; flex-direction: column; gap: .75rem; border-bottom: 1px solid var(--line); }
.gold-header { border-left: 6px solid var(--amber); }
.rate-title { font-family: var(--ff-head); font-weight: 700; display: flex; justify-content: space-between; align-items: center; width: 100%; }
.rate-title i { color: var(--teal); }
.gold-header .rate-title i { color: var(--amber); }
.rate-update-time { font-family: var(--ff-body); font-size: .75rem; font-weight: 500; color: var(--muted); }
.search-container { width: 100%; }
.search-input { background-color: var(--paper); border: 1px solid var(--line); color: var(--ink); border-radius: var(--radius); }
.search-input::placeholder { color: #9AA8A5; }
.currency-flag { width: 24px; height: 18px; border-radius: 3px; margin-right: 10px; object-fit: cover; box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.currency-code { font-weight: 700; color: var(--ink); }
.currency-name { font-size: .8rem; color: var(--muted); margin-left: 5px; }
@keyframes highlight { 0% { background-color: rgba(44,95,90,.18); } 100% { background-color: var(--paper); } }
.input-highlight { animation: highlight 1s ease-out; }

/* ---------- ads ---------- */
.ad-slot { margin-top: 2rem; margin-bottom: 2rem; }

/* ---------- responsive ---------- */
@media (max-width: 991.98px) {
  .site-nav .navbar-collapse { padding: .5rem 0 .25rem; }
  .site-nav .nav-link { padding: .6rem .95rem; }
}
@media (max-width: 575.98px) {
  .hero { padding: 2.25rem .5rem 1.5rem; }
  .result-amount { font-size: 2rem; }
  .card.p-5 { padding: 1.5rem !important; }
}