/* ==========================================================================
   tokens.css – gemeinsames Design-System (1:1 die Variablen der Atem-PWA)
   Hell ist Standard; Nacht über prefers-color-scheme ODER body.theme-dark.
   body.theme-light erzwingt Hell. Modulfarben werden je Kurs gesetzt.
   ========================================================================== */
:root {
  --color-bg:           #F6F8FB;
  --color-bg-card:      #FFFFFF;
  --color-bg-elevated:  #EDF2F9;
  --color-text:         #101828;
  --color-text-muted:   #667085;
  --color-accent:       #3E8EF7;
  --color-accent-hover: #2F7BDF;
  --color-accent-fg:    #FFFFFF;
  --color-success:      #12B76A;
  --color-warning:      #B54708;
  --color-danger:       #D92D20;
  --color-border:       rgba(16, 24, 40, 0.12);
  --color-shadow:       rgba(16, 24, 40, 0.08);

  --font-sans: 'Figtree', -apple-system, 'Helvetica Neue', 'Segoe UI', sans-serif;

  --space-xs: 4px; --space-sm: 8px; --space-md: 16px; --space-lg: 24px; --space-xl: 32px; --space-2xl: 48px;
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px; --radius-full: 9999px;

  --safe-top: env(safe-area-inset-top, 0px); --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px); --safe-right: env(safe-area-inset-right, 0px);

  --nav-height: 64px; --header-height: 56px;

  /* Modulfarben (Default: Akzent) – werden je Kurs/Modul überschrieben */
  --module-bg:     #E6F1FB;
  --module-fg:     #0C447C;
  --module-accent: #185FA5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0B1220; --color-bg-card: #121B2D; --color-bg-elevated: #16233C;
    --color-text: #EAF0F8; --color-text-muted: #93A0B4;
    --color-accent: #7FB3FF; --color-accent-hover: #A5C8FF; --color-accent-fg: #0B1220;
    --color-success: #34D399; --color-warning: #FBBF24; --color-danger: #F87171;
    --color-border: rgba(255, 255, 255, 0.14); --color-shadow: rgba(0, 0, 0, 0.35);
  }
}
body.theme-light {
  --color-bg: #F6F8FB; --color-bg-card: #FFFFFF; --color-bg-elevated: #EDF2F9;
  --color-text: #101828; --color-text-muted: #667085;
  --color-accent: #3E8EF7; --color-accent-hover: #2F7BDF; --color-accent-fg: #FFFFFF;
  --color-success: #12B76A; --color-warning: #B54708; --color-danger: #D92D20;
  --color-border: rgba(16, 24, 40, 0.12); --color-shadow: rgba(16, 24, 40, 0.08);
}
body.theme-dark {
  --color-bg: #0B1220; --color-bg-card: #121B2D; --color-bg-elevated: #16233C;
  --color-text: #EAF0F8; --color-text-muted: #93A0B4;
  --color-accent: #7FB3FF; --color-accent-hover: #A5C8FF; --color-accent-fg: #0B1220;
  --color-success: #34D399; --color-warning: #FBBF24; --color-danger: #F87171;
  --color-border: rgba(255, 255, 255, 0.14); --color-shadow: rgba(0, 0, 0, 0.35);
}

/* Basis */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body.fgkms-body {
  font-family: var(--font-sans); color: var(--color-text); background: var(--color-bg);
  -webkit-font-smoothing: antialiased; line-height: 1.5; font-size: 16px;
}
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 var(--space-sm); line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: 24px; font-weight: 600; }
h2 { font-size: 20px; font-weight: 600; }
h3 { font-size: 17px; font-weight: 600; }
p { margin: 0 0 var(--space-md); }

/* Bausteine */
.fgkms-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: 0 1px 2px var(--color-shadow); }
.fgkms-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%; font: inherit; font-size: 16px; font-weight: 600; color: var(--color-accent-fg); background: var(--color-accent); border: 0; border-radius: var(--radius-md); padding: 13px 16px; cursor: pointer; text-decoration: none; transition: background .15s, transform .05s; }
.fgkms-btn:hover { background: var(--color-accent-hover); text-decoration: none; }
.fgkms-btn:active { transform: translateY(1px); }
.fgkms-btn:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-accent) 40%, transparent); outline-offset: 2px; }
.fgkms-btn--secondary { background: var(--color-bg-elevated); color: var(--color-text); }
.fgkms-btn--secondary:hover { background: var(--color-border); }
.fgkms-btn--ghost { background: transparent; color: var(--color-accent); border: 1px solid var(--color-border); }
.fgkms-btn--sm { width: auto; padding: 8px 14px; font-size: 14px; }
.fgkms-btn[disabled] { opacity: .5; cursor: not-allowed; }
.fgkms-field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--color-text-muted); }
.fgkms-field input, .fgkms-field select, .fgkms-field textarea { font: inherit; font-size: 16px; color: var(--color-text); background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 12px 14px; outline: none; transition: border-color .15s, box-shadow .15s; }
.fgkms-field input:focus, .fgkms-field select:focus, .fgkms-field textarea:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 25%, transparent); }
.fgkms-check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--color-text-muted); cursor: pointer; }
.fgkms-check input { margin-top: 3px; width: 18px; height: 18px; flex: 0 0 18px; accent-color: var(--color-accent); }
.fgkms-alert { border-radius: var(--radius-md); padding: 12px 14px; font-size: 14px; margin-bottom: 14px; border: 1px solid; }
.fgkms-alert-error { background: color-mix(in srgb, var(--color-danger) 10%, var(--color-bg-card)); border-color: color-mix(in srgb, var(--color-danger) 40%, transparent); color: var(--color-text); }
.fgkms-alert-ok { background: color-mix(in srgb, var(--color-success) 12%, var(--color-bg-card)); border-color: color-mix(in srgb, var(--color-success) 40%, transparent); color: var(--color-text); }
.fgkms-alert-info { background: var(--color-bg-elevated); border-color: var(--color-border); color: var(--color-text); }
.fgkms-badge { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--module-fg); background: var(--module-bg); border-radius: var(--radius-full); padding: 3px 10px; }
.fgkms-muted { color: var(--color-text-muted); }
.fgkms-hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }

/* Status-Icons (identisch zur App: lock / crown / info / restricted) */
.fgkms-status { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; font-size: 12px; background: var(--color-bg-elevated); color: var(--color-text-muted); flex: 0 0 22px; }
.fgkms-status--done { background: color-mix(in srgb, var(--color-success) 18%, transparent); color: var(--color-success); }
.fgkms-status--premium { background: color-mix(in srgb, #F59E0B 20%, transparent); color: #B45309; }
.fgkms-status--locked, .fgkms-status--unavailable, .fgkms-status--restricted { opacity: .8; }

/* Theme-Umschalter */
.fgkms-theme { display: inline-flex; gap: 2px; background: var(--color-bg-elevated); border-radius: var(--radius-full); padding: 3px; }
.fgkms-theme button { font: inherit; font-size: 12px; border: 0; background: transparent; color: var(--color-text-muted); padding: 5px 10px; border-radius: var(--radius-full); cursor: pointer; }
.fgkms-theme button.is-active { background: var(--color-bg-card); color: var(--color-text); box-shadow: 0 1px 2px var(--color-shadow); }

@media (prefers-reduced-motion: reduce) { .fgkms-btn { transition: none; } }