/* ==========================================================================
   Design Tokens
   Single source of truth for the visual language.
   Sourced from BA's Bagel design system (src/tokens/).
   ========================================================================== */

/* ==========================================================================
   @font-face — Mylius Modern (BA corporate heading font)
   Sourced from bagel/src/fonts/mylius-Modern-*.woff2
   ========================================================================== */

@font-face {
    font-family: 'Mylius Modern';
    src: url('fonts/mylius-Modern-extlig.woff2') format('woff2'),
         url('fonts/MyliusModern-ExtLig.ttf') format('truetype');
    font-weight: 200;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Mylius Modern';
    src: url('fonts/mylius-Modern-lt.woff2') format('woff2'),
         url('fonts/MyliusModern-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Mylius Modern';
    src: url('fonts/mylius-Modern-reg.woff2') format('woff2'),
         url('fonts/MyliusModern-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Mylius Modern';
    src: url('fonts/mylius-Modern-bd.woff2') format('woff2'),
         url('fonts/MyliusModern-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* ==========================================================================
   @font-face — Open Sans (BA corporate body font)
   Sourced from bagel/src/fonts/open-sans/
   ========================================================================== */

@font-face {
    font-family: 'Open Sans';
    src: url('fonts/open-sans-v15-latin-300.woff2') format('woff2');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Open Sans';
    src: url('fonts/open-sans-v15-latin-regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Open Sans';
    src: url('fonts/open-sans-v15-latin-700.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* ==========================================================================
   Design Tokens — BA Brand
   Colour palette from bagel/src/tokens/utils.js
   Typography from bagel/src/tokens/font.tokens.js
   ========================================================================== */

:root {
    /* ── BA colour palette (from bagel utils.js) ──────────────────────── */

    /* Midnight — primary text and dark backgrounds */
    --c-midnight-700: #01122C;
    --c-midnight-500: #021B41;
    --c-midnight-400: #8692A4;
    --c-midnight-200: #D7DBE1;

    /* Blue — primary actions, links, focus */
    --c-blue-700: #234776;
    --c-blue-500: #3468AD;
    --c-blue-400: #9EB7D8;
    --c-blue-200: #DFE7F2;

    /* Red — errors, destructive, sale */
    --c-red-700: #8C160A;
    --c-red-500: #CE210F;
    --c-red-200: #F7DBD9;

    /* Green — confirmation, success */
    --c-green-700: #00573C;
    --c-green-500: #008058;
    --c-green-200: #D6EBE4;

    /* Grey — neutral, borders, backgrounds */
    --c-grey-700: #70758F;
    --c-grey-500: #B7B9C6;
    --c-grey-300: #E7E8EC;
    --c-grey-200: #F9F9FA;

    /* ── Semantic colour tokens ───────────────────────────────────────── */

    --c-color-primary: #3468AD;            /* blue500 */
    --c-color-primary-hover: #2C5791;      /* blue600 */
    --c-color-primary-active: #234776;     /* blue700 */
    --c-color-text: #021B41;               /* midnight500 */
    --c-color-text-muted: #70758F;         /* grey700 */
    --c-color-text-secondary: #8692A4;     /* midnight400 */
    --c-color-text-inverse: #FFFFFF;
    --c-color-surface: #FFFFFF;
    --c-color-background: #F9F9FA;         /* grey200 */
    --c-color-border: #E7E8EC;             /* grey300 */
    --c-color-border-hover: #B7B9C6;       /* grey500 */
    --c-color-border-focus: #3468AD;       /* blue500 */
    --c-color-input-bg: #F9F9FA;           /* grey200 */
    --c-color-icon: #8692A4;               /* midnight400 */

    /* State: error */
    --c-color-error: #CE210F;              /* red500 */
    --c-color-error-hover: #8C160A;        /* red700 */
    --c-color-error-bg: #F7DBD9;           /* red200 */
    --c-color-error-bg-light: #F7DBD9;
    --c-color-error-border: #CE210F;
    --c-color-error-text-dark: #8C160A;    /* red700 */

    /* State: warning (amber — kept neutral, not a BA primitive) */
    --c-color-warning: #d97706;
    --c-color-warning-hover: #b45309;
    --c-color-warning-bg: #fef3c7;
    --c-color-warning-text-dark: #92400e;

    /* State: info */
    --c-color-info-bg: #DFE7F2;            /* blue200 */
    --c-color-info-bg-light: #DFE7F2;
    --c-color-info-border: #9EB7D8;        /* blue400 */
    --c-color-info-text: #234776;          /* blue700 */

    /* State: success */
    --c-color-success: #008058;            /* green500 */
    --c-color-success-hover: #00573C;      /* green700 */
    --c-color-success-bg: #D6EBE4;         /* green200 */
    --c-color-success-text: #00573C;       /* green700 */
    --c-color-success-border: #008058;     /* green500 */

    /* Misc */
    --c-color-dark-hover: #01122C;         /* midnight700 */
    --c-color-neutral-bg: #E7E8EC;         /* grey300 */

    /* ── Typography ───────────────────────────────────────────────────── */

    --c-font-heading: 'Mylius Modern', 'Open Sans', helvetica, arial, sans-serif;
    --c-font-family: 'Open Sans', helvetica, arial, sans-serif;
    --c-font-size-xs: 0.75rem;             /* 12px */
    --c-font-size-sm: 0.8125rem;           /* 13px */
    --c-font-size-base: 1rem;              /* 16px — BA base */
    --c-font-size-lg: 1.125rem;            /* 18px */
    --c-font-size-page-title: 1.25rem;     /* 20px — referee/candidate page H1 (density pass) */
    --c-font-size-xl: 1.5rem;              /* 24px */
    --c-font-weight-light: 300;
    --c-font-weight-normal: 400;
    --c-font-weight-medium: 500;
    --c-font-weight-semibold: 600;
    --c-font-weight-bold: 700;
    --c-line-height: 1.5;

    /* ── Spacing ──────────────────────────────────────────────────────── */

    --c-space-xs: 0.25rem;                 /* 4px */
    --c-space-sm: 0.5rem;                  /* 8px */
    --c-space-md: 1rem;                    /* 16px */
    --c-space-lg: 1.5rem;                  /* 24px */
    --c-space-xl: 2rem;                    /* 32px */
    --c-space-2xl: 2.5rem;                 /* 40px */

    /* ── Shape ────────────────────────────────────────────────────────── */

    --c-radius-sm: 0.375rem;               /* 6px */
    --c-radius-md: 0.5625rem;              /* 9px — BA form field radius */
    --c-radius-lg: 1rem;                   /* 16px */
    --c-radius-full: 999px;

    /* ── Elevation ────────────────────────────────────────────────────── */

    --c-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --c-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --c-shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --c-shadow-focus: 0 0 0 3px rgba(52, 104, 173, 0.25);

    /* ── Status colours (document/reference lifecycle) ───────────────── */

    --status-notuploaded: #FFFFFF;
    --status-notuploaded-text: var(--c-color-text);
    --status-uploaded: #c3edf5;
    --status-uploaded-text: var(--c-color-text);
    --status-ready: #74b7be;
    --status-ready-text: #FFFFFF;
    --status-approved: #E5F0DB;
    --status-approved-text: var(--c-color-text);
    --status-approved-accent: #75b985;
    --status-rejected: #F9DADA;
    --status-rejected-text: var(--c-color-text);
    --status-rejected-accent: #e8959c;
    --status-due-to-expire: #ffeab0;
    --status-due-to-expire-text: var(--c-color-text);
    --status-rework: #ffc107;
    --status-rework-text: #FFFFFF;
    --status-chip-security-bg: #fefce8;
    --status-chip-security-text: #a16207;
    --status-chip-security-border: #fde68a;
    --status-chip-technical-bg: #f5f3ff;
    --status-chip-technical-text: #6d28d9;
    --status-chip-technical-border: #ddd6fe;

    /* ── Alert border colours ─────────────────────────────────────────── */

    --c-color-warning-border: #fcd34d;
    --c-color-error-border-light: #fca5a5;
    --c-color-info-teal: #17a2b8;
    --c-color-sky-blue: #0ea5e9;

    /* ── Misc ─────────────────────────────────────────────────────────── */

    --c-color-tooltip-border: #666666;
    --c-color-tooltip-shadow: #333333;
    --c-color-form-border-legacy: #ced4da;
    --c-color-warning-hover-tint: #fde68a;

    /* ── Motion ───────────────────────────────────────────────────────── */

    --c-transition-fast: 150ms ease;
    --c-transition-base: 200ms ease;

    /* ── Section accent colours (LW-11) ───────────────────────────────── */
    /* Base colours for the rotating left-accent on logical form sections in
       the referee generic form. Applied as a left border + faint tinted
       background (via color-mix) in candidate/base.css. These reuse existing
       semantic state hues so adjacent sections read as visually distinct
       while staying on-brand and accessible. */
    --c-section-accent-1: var(--c-color-primary);   /* blue */
    --c-section-accent-2: var(--c-color-success);   /* green */
    --c-section-accent-3: var(--c-color-info-teal);  /* teal */
    --c-section-accent-4: var(--c-color-warning);   /* amber */

    /* ── Bootstrap 5 CSS variable overrides ───────────────────────────── */

    --bs-body-font-family: var(--c-font-family);
    --bs-body-font-size: var(--c-font-size-base);
    --bs-body-font-weight: var(--c-font-weight-light);
    --bs-body-color: var(--c-color-text);
    --bs-body-bg: var(--c-color-background);
    --bs-primary: var(--c-color-primary);
    --bs-secondary: var(--c-grey-500);
    --bs-danger: var(--c-color-error);
    --bs-warning: var(--c-color-warning);
    --bs-success: var(--c-color-success);
    --bs-info: var(--c-color-primary);
    --bs-border-color: var(--c-color-border);
    --bs-link-color: var(--c-color-primary);
    --bs-link-hover-color: var(--c-color-primary-hover);
    --bs-border-radius: var(--c-radius-md);
}