/* ============================================================
   Klarify — Design Tokens
   Colors & Typography
   ============================================================
   Mobile-first study app. Light is the default surface the
   user spends time on; dark mode is a planned secondary
   surface (see brief). Tokens below cover light surface +
   neutral accents + the hero brand green. Dark variants
   are scaffolded under [data-theme="dark"].
   ============================================================ */

/* -------- 1. Fonts -------------------------------------- */

@font-face {
  font-family: "Uber Move";
  src: url("fonts/UberMove-Light.ttf") format("truetype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Uber Move";
  src: url("fonts/UberMove-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Uber Move";
  src: url("fonts/UberMove-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Uber Move";
  src: url("fonts/UberMove-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* -------- 2. Color primitives ------------------------ */

  /* Surface — the warm-cool tinted off-white from the comps */
  --klarify-bg-base:      #F5F5F3;   /* default canvas */
  --klarify-bg-tint-warm: #F2F4EA;   /* the faint green tint seen right-edge */
  --klarify-bg-tint-cool: #EEF1F5;   /* faint blue tint seen left-edge */
  --klarify-surface:      #FFFFFF;   /* cards, sheets, popovers */
  --klarify-surface-2:    #F2F2F4;   /* subtle inset / hover chip */
  --klarify-surface-3:    #E6E6E9;   /* keyboard keys / dividers raised */

  /* Foreground neutrals */
  --klarify-fg-1:    #0F0F10;        /* primary text, headlines */
  --klarify-fg-2:    #4A4A4F;        /* body, secondary headings */
  --klarify-fg-3:    #8E8E93;        /* metadata, placeholders, captions */
  --klarify-fg-4:    #C7C7CC;        /* disabled / heavy hint */
  --klarify-fg-on-dark: #FFFFFF;     /* text on black pills / dark surface */

  /* Lines */
  --klarify-line-soft:  rgba(15, 15, 16, 0.06);
  --klarify-line:       rgba(15, 15, 16, 0.10);
  --klarify-line-bold:  rgba(15, 15, 16, 0.18);

  /* Brand green — the hero */
  --klarify-green-50:  #F2FAEC;
  --klarify-green-100: #E1F4D2;
  --klarify-green-200: #C8EBAE;
  --klarify-green-300: #ABE38A;
  --klarify-green-400: #8FDD6F;   /* PRIMARY brand accent */
  --klarify-green-500: #6FCB4D;
  --klarify-green-600: #4FB02D;
  --klarify-green-700: #3A8B1F;

  /* Subject palette — the pastels that color note thumbnails / chips */
  --klarify-subject-mint:     #B7E2A8;
  --klarify-subject-mint-2:   #5BC242;   /* saturated pair */
  --klarify-subject-lavender: #CFC0EE;
  --klarify-subject-lavender-2: #9F7DEE;
  --klarify-subject-sky:      #B7C7F0;
  --klarify-subject-sky-2:    #5180E8;
  --klarify-subject-peach:    #F2C8B7;
  --klarify-subject-peach-2:  #E0805C;
  --klarify-subject-rose:     #F2B7C7;
  --klarify-subject-rose-2:   #DB5C7C;
  --klarify-subject-sand:     #EFE2B5;
  --klarify-subject-sand-2:   #C8A53F;
  --klarify-subject-teal:     #B7E0DA;
  --klarify-subject-teal-2:   #3FA89A;

  /* Semantic */
  --klarify-danger:    #E5484D;        /* "Delete" copy / destructive */
  --klarify-danger-2:  #FCE9EA;
  --klarify-warning:   #F2A93B;
  --klarify-info:      #5180E8;
  --klarify-recording: #E5484D;        /* "Capture Audio" dot */

  /* Inverse / pill button (the primary CTA in the app) */
  --klarify-pill-bg:        #0F0F10;
  --klarify-pill-bg-press:  #2A2A2E;
  --klarify-pill-fg:        #FFFFFF;

  /* -------- 3. Semantic role aliases ------------------- */

  --color-canvas:        var(--klarify-bg-base);
  --color-canvas-tinted: linear-gradient(
    115deg,
    var(--klarify-bg-tint-cool) 0%,
    var(--klarify-bg-base) 45%,
    var(--klarify-bg-tint-warm) 100%
  );
  --color-surface:       var(--klarify-surface);
  --color-surface-sunk:  var(--klarify-surface-2);

  --color-fg:            var(--klarify-fg-1);
  --color-fg-muted:      var(--klarify-fg-2);
  --color-fg-subtle:     var(--klarify-fg-3);
  --color-fg-faint:      var(--klarify-fg-4);

  --color-accent:        var(--klarify-green-400);
  --color-accent-hover:  var(--klarify-green-500);
  --color-accent-soft:   var(--klarify-green-100);
  --color-accent-fg:     var(--klarify-fg-1);       /* black text on green */

  --color-cta:           var(--klarify-pill-bg);
  --color-cta-fg:        var(--klarify-pill-fg);
  --color-cta-hover:     var(--klarify-pill-bg-press);

  --color-danger:        var(--klarify-danger);
  --color-danger-bg:     var(--klarify-danger-2);

  --color-border:        var(--klarify-line);
  --color-border-soft:   var(--klarify-line-soft);

  /* -------- 4. Typography ------------------------------ */

  --font-sans: "Uber Move", -apple-system, BlinkMacSystemFont,
               "SF Pro Text", "Inter", system-ui, sans-serif;
  --font-display: "Uber Move", -apple-system, "SF Pro Display",
                  system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  /* Type scale — anchored on mobile but works for web. */
  --text-2xs: 11px;
  --text-xs:  12px;
  --text-sm:  14px;
  --text-md:  16px;   /* body default */
  --text-lg:  18px;
  --text-xl:  20px;
  --text-2xl: 24px;   /* card title */
  --text-3xl: 32px;
  --text-4xl: 40px;
  --text-5xl: 56px;   /* hero — "Your place for quick and easy notes" scale */

  --leading-tight:  1.10;
  --leading-snug:   1.20;
  --leading-normal: 1.40;
  --leading-relaxed:1.55;

  --tracking-tight:   -0.02em;
  --tracking-snug:    -0.01em;
  --tracking-normal:  0;
  --tracking-loose:   0.02em;

  --weight-light:   300;
  --weight-regular: 400;
  --weight-medium:  500;
  --weight-bold:    700;

  /* -------- 5. Geometry, shadows, motion --------------- */

  --radius-xs:   6px;
  --radius-sm:   10px;
  --radius-md:   16px;   /* default card */
  --radius-lg:   22px;   /* large card / sheet */
  --radius-xl:   28px;   /* popover */
  --radius-pill: 999px;

  --shadow-1: 0 1px 2px rgba(15, 15, 16, 0.04),
              0 2px 6px rgba(15, 15, 16, 0.04);
  --shadow-2: 0 2px 4px rgba(15, 15, 16, 0.04),
              0 8px 22px rgba(15, 15, 16, 0.06);
  --shadow-3: 0 8px 32px rgba(15, 15, 16, 0.10),
              0 2px 6px rgba(15, 15, 16, 0.06);
  --shadow-pop: 0 18px 60px rgba(15, 15, 16, 0.18),
                0 4px 12px rgba(15, 15, 16, 0.08);
  --shadow-pill: 0 8px 22px rgba(15, 15, 16, 0.18);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 56px;
  --space-10: 72px;

  --motion-fast: 120ms cubic-bezier(.2,.7,.3,1);
  --motion-base: 220ms cubic-bezier(.2,.7,.3,1);
  --motion-slow: 360ms cubic-bezier(.2,.7,.3,1);
}

/* -------- 6. Dark mode scaffold (secondary surface) ----- */

[data-theme="dark"] {
  --klarify-bg-base:      #0B0B0C;
  --klarify-bg-tint-warm: #0E110A;
  --klarify-bg-tint-cool: #0A0D11;
  --klarify-surface:      #161617;
  --klarify-surface-2:    #1F1F21;
  --klarify-surface-3:    #2A2A2E;

  --klarify-fg-1: #FFFFFF;
  --klarify-fg-2: #C7C7CC;
  --klarify-fg-3: #8E8E93;
  --klarify-fg-4: #5A5A60;

  --klarify-line-soft: rgba(255, 255, 255, 0.06);
  --klarify-line:      rgba(255, 255, 255, 0.10);
  --klarify-line-bold: rgba(255, 255, 255, 0.18);

  --klarify-pill-bg:        #FFFFFF;
  --klarify-pill-bg-press:  #E6E6E9;
  --klarify-pill-fg:        #0F0F10;
}

/* -------- 7. Semantic element styles -------------------- */

.k-h1 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-fg);
}
.k-h2 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-3xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-snug);
  color: var(--color-fg);
}
.k-h3 {
  font-family: var(--font-sans);
  font-weight: var(--weight-bold);
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  color: var(--color-fg);
}
.k-h4 {
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-fg);
}
.k-body {
  font-family: var(--font-sans);
  font-weight: var(--weight-regular);
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-fg);
}
.k-body-muted {
  font-family: var(--font-sans);
  font-weight: var(--weight-regular);
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-fg-muted);
}
.k-caption {
  font-family: var(--font-sans);
  font-weight: var(--weight-regular);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-fg-subtle);
}
.k-eyebrow {
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-loose);
  color: var(--color-fg-muted);
  text-transform: none;          /* sentence case — NOT all caps */
}
.k-mono {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}