/* ==========================================================================
   LEARN_OS — brand skin for Frappe LMS
   Palette + type lifted verbatim from aleksei404.com. This is the base layer
   (~85%); the final SPA polish is tuned against the live instance because the
   frappe-ui Vue markup is only fully knowable at runtime.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* paper / ink — exact aleksei404.com tokens */
  --lo-paper:       #f0ede5;
  --lo-paper-2:     #e7e3d8;
  --lo-card:        #faf9f5;
  --lo-ink:         #17150f;
  --lo-ink-soft:    #4d4a42;
  --lo-ink-faint:   #66625a;
  --lo-line:        #c9c4b6;
  --lo-line-strong: #b3ad9e;
  --lo-dark:        #131210;
  --lo-dark-2:      #1f1d18;
  --lo-paper-on-dark: #e9e5da;
  --lo-faint-on-dark: #9c9789;

  /* signature accents */
  --lo-accent:  #FF1A75;   /* hot pink */
  --lo-cyan:    #00e0d0;   /* glitch cyan */

  --lo-font-mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
  --lo-font-head: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* map onto Frappe/frappe-ui design tokens where they exist */
  --primary: var(--lo-accent);
  --brand-color: var(--lo-accent);
  --text-color: var(--lo-ink);
  --heading-color: var(--lo-ink);
  --bg-color: var(--lo-paper);
  --fg-color: var(--lo-card);
  --border-color: var(--lo-line);
}

/* ---- global canvas ------------------------------------------------------- */
body,
.layout-main,
.page-body,
.web-page,
#body {
  background-color: var(--lo-paper) !important;
  color: var(--lo-ink);
  font-family: var(--lo-font-head);
  -webkit-font-smoothing: antialiased;
}

/* mono for the machine-voice bits: code, tags, meta, nav labels */
code, kbd, pre, samp,
.text-mono, .course-card .meta,
.badge, .pill, .tag {
  font-family: var(--lo-font-mono);
}

h1, h2, h3, h4, h5,
.page-title, .title-text, .course-title {
  font-family: var(--lo-font-head);
  color: var(--lo-ink);
  letter-spacing: -0.01em;
}

a { color: var(--lo-ink); text-decoration-color: var(--lo-line-strong); }
a:hover { color: var(--lo-accent); }

/* ---- signature top rule -------------------------------------------------- */
/* thin accent seam under the app navbar — the aleksei404.com "scanline" */
.navbar, .lms-navbar, header.sticky {
  border-bottom: 1px solid var(--lo-line) !important;
  box-shadow: inset 0 -2px 0 0 var(--lo-accent);
  background: var(--lo-card) !important;
}

/* ---- buttons ------------------------------------------------------------- */
.btn-primary,
button.bg-gray-900,
.frappe-ui .button-primary {
  background: var(--lo-ink) !important;
  border: 1px solid var(--lo-ink) !important;
  color: var(--lo-paper-on-dark) !important;
  font-family: var(--lo-font-mono);
  font-weight: 600;
  border-radius: 2px;
  min-height: 44px;
  transition: transform .08s ease, background .12s ease;
}
.btn-primary:hover,
.frappe-ui .button-primary:hover {
  background: var(--lo-accent) !important;
  border-color: var(--lo-accent) !important;
  color: #fff !important;
}
.btn-primary:active { transform: translateY(1px); }

.btn-default, .btn-secondary {
  background: var(--lo-card) !important;
  border: 1px solid var(--lo-line-strong) !important;
  color: var(--lo-ink) !important;
  border-radius: 2px;
  min-height: 44px;
}

/* ---- cards --------------------------------------------------------------- */
.course-card,
.card,
.widget,
.frappe-card {
  background: var(--lo-card) !important;
  border: 1px solid var(--lo-line) !important;
  border-radius: 3px !important;
  box-shadow: none !important;   /* craft-floor: no soft drop-shadows */
}
.course-card:hover {
  border-color: var(--lo-ink) !important;
}

/* language + tier tags on the catalog */
.lo-lang-tag {
  font-family: var(--lo-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 2px 7px;
  border: 1px solid var(--lo-line-strong);
  border-radius: 2px;
  color: var(--lo-ink-soft);
  background: var(--lo-paper-2);
}
.lo-lang-tag[data-lang="RU"] { border-color: var(--lo-cyan); color: #0a6c66; }
.lo-lang-tag[data-lang="EN"] { border-color: var(--lo-accent); color: var(--lo-accent); }

/* ---- catalog language switch (injected by learn_os.js) ------------------- */
.lo-langswitch {
  display: inline-flex;
  border: 1px solid var(--lo-line-strong);
  border-radius: 3px;
  overflow: hidden;
  font-family: var(--lo-font-mono);
  margin: 0 0 20px;
}
.lo-langswitch button {
  appearance: none;
  border: 0;
  background: var(--lo-card);
  color: var(--lo-ink-soft);
  padding: 9px 18px;
  min-height: 44px;
  font: inherit;
  font-weight: 600;
  letter-spacing: .06em;
  cursor: pointer;
}
.lo-langswitch button + button { border-left: 1px solid var(--lo-line); }
.lo-langswitch button[aria-pressed="true"] {
  background: var(--lo-ink);
  color: var(--lo-paper-on-dark);
}
.lo-langswitch button:focus-visible {
  outline: 2px solid var(--lo-accent);
  outline-offset: -2px;
}

/* ---- form fields (login / signup) ---------------------------------------- */
input, textarea, select, .form-control {
  border-radius: 2px !important;
  border: 1px solid var(--lo-line-strong) !important;
  background: var(--lo-card) !important;
  color: var(--lo-ink) !important;
  font-family: var(--lo-font-mono);
}
input:focus, textarea:focus, select:focus, .form-control:focus {
  border-color: var(--lo-accent) !important;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--lo-accent) 30%, transparent) !important;
}

/* ---- accessible focus everywhere ----------------------------------------- */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--lo-accent);
  outline-offset: 2px;
}

::selection { background: var(--lo-accent); color: #fff; }