/* ============================================================
   Werk — main.css
   Design tokens, reset, typography, layout, forms, utilities
   ============================================================ */

:root {
    /* Colour */
    --color-primary: #1a56db;          /* EU-blue inspired */
    --color-primary-dark: #1e429f;
    --color-primary-light: #e8eefb;
    --color-accent: #f59e0b;           /* Amber for highlights */
    --color-accent-light: #fef3c7;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-danger: #ef4444;

    /* Shape & depth */
    --radius: 8px;
    --radius-lg: 14px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);

    /* Layout
       Content is fluid up to --max-width (designed on a 1440px artboard).
       Breakpoints: mobile 360–767 · tablet 768–1023 ·
       small desktop 1024–1279 · desktop 1280–1439 · large desktop 1440+ */
    --max-width: 1440px;
    --navbar-height: 64px;

    /* Type */
    --font-main: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
}

/* ---- Reset ---- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    /* Sticky footer: fill the viewport so the footer never rides up on
       short pages (e.g. a search with only 1–2 results). */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Main content grows to absorb leftover height, pushing the footer down. */
#main-content { flex: 1 0 auto; }

img, svg, canvas { max-width: 100%; }
img { display: block; }

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5em; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.125rem; }
p  { margin: 0 0 1em; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

table { border-collapse: collapse; width: 100%; }

/* ---- Layout ---- */
.container {
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 1rem;
}

.section { padding-block: 2.5rem; }
.section-alt { background: var(--color-bg-alt); }
.section h2 { margin-bottom: 1.25rem; }

/* Mobile-first responsive grids (mobile 360–767px: single column) */
.grid-2, .grid-3, .grid-4 {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

/* Tablet: 768–1023px */
@media (min-width: 768px) {
    h1 { font-size: 2.5rem; }
    .container { padding-inline: 1.5rem; }
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* Small desktop: 1024–1279px */
@media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

/* Desktop and up: 1280px+ */
@media (min-width: 1280px) {
    .container { padding-inline: 2rem; }
    .grid-2, .grid-3, .grid-4 { gap: 1.25rem; }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---- Card ---- */
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-light); }

.btn-accent { background: var(--color-accent); color: #fff; }
.btn-block { width: 100%; }

/* ---- Forms ---- */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.55rem 0.75rem;
    font: inherit;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
    border-color: var(--color-primary);
}
.form-textarea { min-height: 120px; resize: vertical; }

fieldset { border: 0; padding: 0; margin: 0 0 1.25rem; }
legend { font-weight: 600; padding: 0; margin-bottom: 0.5rem; }

.form-label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.form-group { margin-bottom: 1rem; }

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
    font-size: 0.95rem;
    cursor: pointer;
}

.form-row { display: flex; gap: 0.5rem; }
.form-row > * { flex: 1; }

/* ---- Badges & chips ---- */
.badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    white-space: nowrap;
}
.badge-accent { background: var(--color-accent-light); color: #92400e; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-source {
    background: var(--color-bg-alt);
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    font-weight: 500;
}
.chip-growth { color: var(--color-success); font-weight: 700; font-size: 0.8rem; }

/* ---- Accessibility helpers ---- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    z-index: 100;
    border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

/* ---- Text utilities ---- */
.text-light { color: var(--color-text-light); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-center { text-align: center; }
.mono { font-family: var(--font-mono); }

.empty-state {
    text-align: center;
    color: var(--color-text-light);
    padding: 3rem 1rem;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
}