/* Shared design tokens and small components for the About and Portfolio pages.
 *
 * The colour set is a colour-vision-safe categorical palette. Each hue has
 * three roles: a mark colour for rules, dots and borders; a tint for panel
 * backgrounds; and a darker ink for coloured text, because several of the
 * mark colours do not carry enough contrast to be read as text on their own
 * tint. Text always uses the ink variant.
 *
 * Colour here segments the page - it tells you which kind of thing you are
 * looking at. It never carries information on its own: every coloured
 * element is also labelled.
 */

:root {
    /* neutrals */
    --ink:        #16181d;
    --ink-2:      #454951;
    --ink-3:      #6b7078;
    --rule:       #e4e6ea;
    --rule-soft:  #eff1f4;
    --surface:    #ffffff;
    --sunken:     #f7f8fa;

    /* marks */
    --blue:       #2a78d6;
    --green:      #1baf7a;
    --orange:     #eb6834;
    --violet:     #4a3aa7;
    --amber:      #eda100;

    /* tints */
    --blue-bg:    #edf3fc;
    --green-bg:   #e8f7f1;
    --orange-bg:  #fdf1ec;
    --violet-bg:  #efedf9;
    --amber-bg:   #fdf5e4;

    /* text-safe inks */
    --blue-ink:   #1d5fae;
    --green-ink:  #0d7a54;
    --orange-ink: #b44a16;
    --violet-ink: #4a3aa7;
    --amber-ink:  #8a6200;
}

/* --- section heading: a coloured bar, a label, a rule --- */

.section-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem !important;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700 !important;
    color: var(--ink-3) !important;
    margin: 0 0 20px !important;
    padding: 0 0 11px !important;
    border-bottom: 1px solid var(--rule) !important;
}

.section-heading::before {
    content: "";
    width: 18px;
    height: 3px;
    border-radius: 2px;
    background: var(--accent, var(--blue));
    flex: 0 0 auto;
}

/* Each section declares its own hue; everything inside inherits it. */
.accent-blue   { --accent: var(--blue);   --accent-bg: var(--blue-bg);   --accent-ink: var(--blue-ink); }
.accent-green  { --accent: var(--green);  --accent-bg: var(--green-bg);  --accent-ink: var(--green-ink); }
.accent-orange { --accent: var(--orange); --accent-bg: var(--orange-bg); --accent-ink: var(--orange-ink); }
.accent-violet { --accent: var(--violet); --accent-bg: var(--violet-bg); --accent-ink: var(--violet-ink); }
.accent-amber  { --accent: var(--amber);  --accent-bg: var(--amber-bg);  --accent-ink: var(--amber-ink); }

/* --- chips --- */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.chip {
    display: inline-block;
    font-size: 0.78rem;
    line-height: 1.6;
    border-radius: 5px;
    padding: 2px 9px;
    white-space: nowrap;
    color: var(--accent-ink, var(--blue-ink));
    background: var(--accent-bg, var(--blue-bg));
}

.chip-blue   { color: var(--blue-ink);   background: var(--blue-bg); }
.chip-green  { color: var(--green-ink);  background: var(--green-bg); }
.chip-orange { color: var(--orange-ink); background: var(--orange-bg); }
.chip-violet { color: var(--violet-ink); background: var(--violet-bg); }
.chip-amber  { color: var(--amber-ink);  background: var(--amber-bg); }

/* --- summary tiles --- */

.tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
    gap: 10px;
    margin: 26px 0 0;
    padding: 0;
    list-style: none;
}

.tile {
    border: 1px solid var(--rule);
    border-top: 3px solid var(--tile-accent, var(--blue));
    border-radius: 8px;
    padding: 12px 14px;
    background: var(--surface);
}

.tile .n {
    display: block;
    font-size: 1.55rem;
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.tile .l {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ink-3);
    margin-top: 2px;
}

.tile-blue   { --tile-accent: var(--blue); }
.tile-green  { --tile-accent: var(--green); }
.tile-orange { --tile-accent: var(--orange); }
.tile-violet { --tile-accent: var(--violet); }
.tile-amber  { --tile-accent: var(--amber); }

/* --- timeline --- */

.timeline {
    list-style: none;
    margin: 0;
    padding: 0 0 0 22px;
    border-left: 2px solid var(--rule);
}

.timeline > li {
    position: relative;
    padding: 0 0 26px 0;
}

.timeline > li:last-child { padding-bottom: 4px; }

.timeline > li::before {
    content: "";
    position: absolute;
    left: -29px;
    top: 7px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--surface);
    border: 3px solid var(--accent, var(--blue));
}

.tl-title {
    font-size: 1.02rem !important;
    font-weight: 650 !important;
    color: var(--ink) !important;
    margin: 0 0 2px !important;
    padding: 0 !important;
    border: 0 !important;
    line-height: 1.4;
}

.tl-org {
    font-size: 0.92rem;
    color: var(--accent-ink, var(--blue-ink));
    margin: 0 0 2px;
    font-weight: 500;
}

.tl-when {
    font-size: 0.84rem;
    color: var(--ink-3);
    margin: 0 0 10px;
    font-variant-numeric: tabular-nums;
}

.sep { padding: 0 8px; color: #b9bdc4; }