/* ============================================================
   QuaverEd / QForce Design System
   Colors & Typography Tokens
   Based on Vuetify 3 Material Design palette + QuaverEd brand
   ============================================================ */

/* Brand fonts — Roboto variable shipped locally; Inter still from Google. */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 75% 125%;
  font-display: swap;
  src: url('fonts/Roboto-VariableFont_wdth_wght.ttf') format('truetype-variations');
}
@font-face {
  font-family: 'Roboto';
  font-style: italic;
  font-weight: 100 900;
  font-stretch: 75% 125%;
  font-display: swap;
  src: url('fonts/Roboto-Italic-VariableFont_wdth_wght.ttf') format('truetype-variations');
}
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* ---------- BRAND / THEME ---------- */
  --qv-primary:           #1867C0;   /* Vuetify primary — deep Quaver blue */
  --qv-primary-darken-1:  #1F5592;
  --qv-primary-lighten-1: #4B87CD;
  --qv-primary-lighten-5: #E8F0FA;   /* surface tint */

  --qv-secondary:         #48A9A6;   /* teal — trustworthy companion to primary */
  --qv-secondary-darken-1:#018786;
  --qv-secondary-lighten-5:#E4F4F3;

  /* QuaverEd warm accents — mapped from marketing imagery (Perry, warm CTAs) */
  --qv-accent-amber:      #FFC107;   /* cheerful, used sparingly for hero CTAs */
  --qv-accent-orange:     #FB8C00;   /* warning/energy */
  --qv-accent-pink:       #E91E63;   /* for student / playful surfaces */
  --qv-accent-purple:     #9747FF;   /* Figma stroke accent — illustrative */

  /* ---------- SEMANTIC ---------- */
  --qv-success:           #4CAF50;
  --qv-info:              #2196F3;
  --qv-warning:           #FB8C00;
  --qv-error:             #B00020;

  /* ---------- SURFACES (LIGHT) ---------- */
  --qv-background:        #FFFFFF;
  --qv-surface:           #FFFFFF;
  --qv-surface-bright:    #FFFFFF;
  --qv-surface-light:     #EEEEEE;
  --qv-surface-variant:   #424242;
  --qv-on-surface-variant:#EEEEEE;

  /* ---------- TEXT (on-light) ---------- */
  --qv-fg-1:              rgba(0,0,0,0.87);  /* primary text / headings */
  --qv-fg-2:              rgba(0,0,0,0.60);  /* secondary text */
  --qv-fg-3:              rgba(0,0,0,0.38);  /* disabled / hint */
  --qv-fg-on-primary:     #FFFFFF;
  --qv-fg-on-dark:        #FFFFFF;

  /* ---------- DIVIDERS / BORDERS ---------- */
  --qv-border:            rgba(0,0,0,0.12);
  --qv-border-strong:     rgba(0,0,0,0.24);
  --qv-focus-ring:        rgba(24,103,192,0.24);

  /* ---------- NEUTRALS (Material grey scale) ---------- */
  --qv-grey-50:  #FAFAFA;
  --qv-grey-100: #F5F5F5;
  --qv-grey-200: #EEEEEE;
  --qv-grey-300: #E0E0E0;
  --qv-grey-400: #BDBDBD;
  --qv-grey-500: #9E9E9E;
  --qv-grey-600: #757575;
  --qv-grey-700: #616161;
  --qv-grey-800: #424242;
  --qv-grey-900: #212121;

  /* ---------- TYPOGRAPHY FAMILIES ---------- */
  --qv-font-sans:    'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --qv-font-ui:      'Inter', 'Roboto', system-ui, sans-serif;
  --qv-font-mono:    ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* ---------- TYPE SCALE (Material / Vuetify) ---------- */
  --qv-h1-size: 6rem;     --qv-h1-weight: 300; --qv-h1-tracking: -0.01562em; --qv-h1-lh: 1;
  --qv-h2-size: 3.75rem;  --qv-h2-weight: 300; --qv-h2-tracking: -0.00833em; --qv-h2-lh: 1;
  --qv-h3-size: 3rem;     --qv-h3-weight: 400; --qv-h3-tracking: 0;          --qv-h3-lh: 1.05;
  --qv-h4-size: 2.125rem; --qv-h4-weight: 400; --qv-h4-tracking: 0.00735em;  --qv-h4-lh: 1.17;
  --qv-h5-size: 1.5rem;   --qv-h5-weight: 400; --qv-h5-tracking: 0;          --qv-h5-lh: 1.33;
  --qv-h6-size: 1.25rem;  --qv-h6-weight: 500; --qv-h6-tracking: 0.0125em;   --qv-h6-lh: 1.6;
  --qv-subtitle-1-size: 1rem;     --qv-subtitle-1-weight: 400; --qv-subtitle-1-tracking: 0.00937em;
  --qv-subtitle-2-size: 0.875rem; --qv-subtitle-2-weight: 500; --qv-subtitle-2-tracking: 0.00714em;
  --qv-body-1-size: 1rem;     --qv-body-1-weight: 400; --qv-body-1-tracking: 0.03125em; --qv-body-1-lh: 1.5;
  --qv-body-2-size: 0.875rem; --qv-body-2-weight: 400; --qv-body-2-tracking: 0.01785em; --qv-body-2-lh: 1.43;
  --qv-button-size: 0.875rem; --qv-button-weight: 500; --qv-button-tracking: 0.0892em;
  --qv-caption-size: 0.75rem; --qv-caption-weight: 400; --qv-caption-tracking: 0.0333em;
  --qv-overline-size: 0.75rem;--qv-overline-weight: 500; --qv-overline-tracking: 0.1666em;

  /* ---------- SPACING (4px base) ---------- */
  --qv-sp-0:  0;
  --qv-sp-1:  4px;
  --qv-sp-2:  8px;
  --qv-sp-3:  12px;
  --qv-sp-4:  16px;
  --qv-sp-5:  20px;
  --qv-sp-6:  24px;
  --qv-sp-7:  28px;
  --qv-sp-8:  32px;
  --qv-sp-9:  36px;
  --qv-sp-10: 40px;
  --qv-sp-11: 44px;
  --qv-sp-12: 48px;
  --qv-sp-13: 52px;
  --qv-sp-14: 56px;
  --qv-sp-15: 60px;
  --qv-sp-16: 64px;

  /* ---------- RADII ---------- */
  --qv-radius-0:      0;
  --qv-radius-xs:     2px;
  --qv-radius-sm:     4px;
  --qv-radius:        4px;   /* default = sm */
  --qv-radius-md:     6px;
  --qv-radius-lg:     8px;
  --qv-radius-xl:     24px;
  --qv-radius-pill:   9999px;
  --qv-radius-circle: 50%;

  /* ---------- ELEVATION (Material) ---------- */
  --qv-elev-0:  none;
  --qv-elev-1:  0px 2px 1px -1px rgba(0,0,0,0.2), 0px 1px 1px 0px rgba(0,0,0,0.14), 0px 1px 3px 0px rgba(0,0,0,0.12);
  --qv-elev-2:  0px 3px 1px -2px rgba(0,0,0,0.2), 0px 2px 2px 0px rgba(0,0,0,0.14), 0px 1px 5px 0px rgba(0,0,0,0.12);
  --qv-elev-3:  0px 3px 3px -2px rgba(0,0,0,0.2), 0px 3px 4px 0px rgba(0,0,0,0.14), 0px 1px 8px 0px rgba(0,0,0,0.12);
  --qv-elev-4:  0px 2px 4px -1px rgba(0,0,0,0.2), 0px 4px 5px 0px rgba(0,0,0,0.14), 0px 1px 10px 0px rgba(0,0,0,0.12);
  --qv-elev-6:  0px 3px 5px -1px rgba(0,0,0,0.2), 0px 6px 10px 0px rgba(0,0,0,0.14), 0px 1px 18px 0px rgba(0,0,0,0.12);
  --qv-elev-8:  0px 5px 5px -3px rgba(0,0,0,0.2), 0px 8px 10px 1px rgba(0,0,0,0.14), 0px 3px 14px 2px rgba(0,0,0,0.12);
  --qv-elev-12: 0px 7px 8px -4px rgba(0,0,0,0.2), 0px 12px 17px 2px rgba(0,0,0,0.14), 0px 5px 22px 4px rgba(0,0,0,0.12);
  --qv-elev-16: 0px 8px 10px -5px rgba(0,0,0,0.2), 0px 16px 24px 2px rgba(0,0,0,0.14), 0px 6px 30px 5px rgba(0,0,0,0.12);
  --qv-elev-24: 0px 11px 15px -7px rgba(0,0,0,0.2), 0px 24px 38px 3px rgba(0,0,0,0.14), 0px 9px 46px 8px rgba(0,0,0,0.12);

  /* ---------- MOTION ---------- */
  --qv-ease-standard:   cubic-bezier(0.4, 0, 0.2, 1);   /* Material standard */
  --qv-ease-decelerate: cubic-bezier(0, 0, 0.2, 1);
  --qv-ease-accelerate: cubic-bezier(0.4, 0, 1, 1);
  --qv-dur-fast:  150ms;
  --qv-dur-base:  200ms;
  --qv-dur-slow:  300ms;
}

/* ============================================================
   SEMANTIC TYPOGRAPHY CLASSES
   Usage: <h1 class="qv-h1">...</h1>  or bare h1..h6 if you include
   the base layer below.
   ============================================================ */

.qv-h1, .qv-text-h1 {
  font: var(--qv-h1-weight) var(--qv-h1-size)/var(--qv-h1-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h1-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-h2, .qv-text-h2 {
  font: var(--qv-h2-weight) var(--qv-h2-size)/var(--qv-h2-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h2-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-h3, .qv-text-h3 {
  font: var(--qv-h3-weight) var(--qv-h3-size)/var(--qv-h3-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h3-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-h4, .qv-text-h4 {
  font: var(--qv-h4-weight) var(--qv-h4-size)/var(--qv-h4-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h4-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-h5, .qv-text-h5 {
  font: var(--qv-h5-weight) var(--qv-h5-size)/var(--qv-h5-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h5-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-h6, .qv-text-h6 {
  font: var(--qv-h6-weight) var(--qv-h6-size)/var(--qv-h6-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-h6-tracking); color: var(--qv-fg-1); margin: 0;
}
.qv-subtitle-1 {
  font: var(--qv-subtitle-1-weight) var(--qv-subtitle-1-size)/1.5 var(--qv-font-sans);
  letter-spacing: var(--qv-subtitle-1-tracking); color: var(--qv-fg-1);
}
.qv-subtitle-2 {
  font: var(--qv-subtitle-2-weight) var(--qv-subtitle-2-size)/1.57 var(--qv-font-sans);
  letter-spacing: var(--qv-subtitle-2-tracking); color: var(--qv-fg-1);
}
.qv-body-1, .qv-p {
  font: var(--qv-body-1-weight) var(--qv-body-1-size)/var(--qv-body-1-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-body-1-tracking); color: var(--qv-fg-1);
}
.qv-body-2 {
  font: var(--qv-body-2-weight) var(--qv-body-2-size)/var(--qv-body-2-lh) var(--qv-font-sans);
  letter-spacing: var(--qv-body-2-tracking); color: var(--qv-fg-1);
}
.qv-button {
  font: var(--qv-button-weight) var(--qv-button-size)/1 var(--qv-font-sans);
  letter-spacing: var(--qv-button-tracking); text-transform: uppercase;
}
.qv-caption {
  font: var(--qv-caption-weight) var(--qv-caption-size)/1.66 var(--qv-font-sans);
  letter-spacing: var(--qv-caption-tracking); color: var(--qv-fg-2);
}
.qv-overline {
  font: var(--qv-overline-weight) var(--qv-overline-size)/2.66 var(--qv-font-sans);
  letter-spacing: var(--qv-overline-tracking); text-transform: uppercase; color: var(--qv-fg-2);
}
.qv-mono {
  font-family: var(--qv-font-mono);
}