:root {
    color-scheme: light dark;

    --wt-indigo: #6366f1;
    --wt-violet: #8b5cf6;
    --wt-pink: #ec4899;

    /* Each tool owns an accent so the two cards read as different things. */
    --wt-ical-from: #f59e0b;
    --wt-ical-to: #f97316;
    --wt-vote-from: #14b8a6;
    --wt-vote-to: #0ea5e9;
}

/* Pico scopes its palette to :root:not([data-theme]); match that so these win. */
:root:not([data-theme]),
:root[data-theme] {
    --pico-primary: var(--wt-indigo);
    --pico-primary-hover: var(--wt-violet);
    --pico-primary-background: var(--wt-indigo);
    --pico-primary-focus: rgba(99, 102, 241, 0.3);
    --pico-primary-inverse: #fff;
}

body {
    background-image:
        radial-gradient(60rem 30rem at 8% -12%, rgba(99, 102, 241, 0.16), transparent 60%),
        radial-gradient(50rem 26rem at 96% -6%, rgba(236, 72, 153, 0.13), transparent 58%),
        radial-gradient(44rem 24rem at 50% 108%, rgba(20, 184, 166, 0.10), transparent 60%);
    background-attachment: fixed;
    background-repeat: no-repeat;
}

@media (prefers-color-scheme: dark) {
    body {
        background-image:
            radial-gradient(60rem 30rem at 8% -12%, rgba(99, 102, 241, 0.22), transparent 60%),
            radial-gradient(50rem 26rem at 96% -6%, rgba(236, 72, 153, 0.16), transparent 58%),
            radial-gradient(44rem 24rem at 50% 108%, rgba(20, 184, 166, 0.12), transparent 60%);
    }
}

/* ---------- header ---------- */

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 1.5rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--pico-color);
    text-decoration: none;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(135deg, var(--wt-indigo), var(--wt-pink));
    box-shadow: 0 8px 18px -8px var(--wt-violet);
}

.brand-mark svg {
    width: 18px;
    height: 18px;
}

.lang-switch {
    display: inline-flex;
    gap: 0.15rem;
    padding: 0.2rem;
    border-radius: 999px;
    background: var(--pico-card-sectioning-background-color);
}

.lang-switch a,
.lang-switch span {
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    line-height: 1.35;
    text-decoration: none;
}

.lang-switch a {
    color: var(--pico-muted-color);
}

.lang-switch a:hover {
    color: var(--pico-color);
    background: var(--pico-muted-border-color);
}

.lang-switch [aria-current="true"] {
    color: #fff;
    background: linear-gradient(135deg, var(--wt-indigo), var(--wt-violet));
}

/* ---------- hero ---------- */

.hero {
    max-width: 44rem;
    padding-block: 2.5rem 0.5rem;
}

.hero h1 {
    margin-bottom: 0.65rem;
    font-size: clamp(2rem, 5.2vw, 3.25rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
    background: linear-gradient(115deg, var(--wt-indigo), var(--wt-violet) 42%, var(--wt-pink));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

/* Without background-clip the gradient text would be invisible. */
@supports not ((background-clip: text) or (-webkit-background-clip: text)) {
    .hero h1 {
        color: var(--wt-indigo);
        -webkit-text-fill-color: currentColor;
    }
}

.hero .lead {
    margin: 0;
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    color: var(--pico-muted-color);
}

/* ---------- tool cards ---------- */

.tools {
    margin-block: 2.5rem 3rem;
}

.tool {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    margin: 0;
    padding: 1.75rem;
    overflow: hidden;
    border-radius: 16px;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.tool::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tool-from), var(--tool-to));
}

.tool:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -20px rgba(17, 24, 39, 0.45);
}

@media (prefers-color-scheme: dark) {
    .tool:hover {
        box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.8);
    }
}

.tool--ical {
    --tool-from: var(--wt-ical-from);
    --tool-to: var(--wt-ical-to);
}

.tool--vote {
    --tool-from: var(--wt-vote-from);
    --tool-to: var(--wt-vote-to);
}

.tool-icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    margin-bottom: 1.1rem;
    border-radius: 13px;
    color: #fff;
    background: linear-gradient(135deg, var(--tool-from), var(--tool-to));
    box-shadow: 0 10px 20px -10px var(--tool-to);
}

.tool-icon svg {
    width: 24px;
    height: 24px;
}

.tool h2 {
    margin-bottom: 0.45rem;
    font-size: 1.35rem;
    letter-spacing: -0.01em;
}

.tool p {
    flex: 1;
    margin-bottom: 1.35rem;
    color: var(--pico-muted-color);
}

.badge {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--tool-to);
    background: rgba(125, 125, 125, 0.14);
    background: color-mix(in srgb, var(--tool-to) 15%, transparent);
}

.badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ---------- footer ---------- */

.site-footer {
    padding-block: 1.75rem 2.5rem;
    border-top: 1px solid var(--pico-muted-border-color);
    color: var(--pico-muted-color);
    font-size: 0.85rem;
}

/* ---------- header nav (login, admin, logout) ---------- */

.site-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.site-nav > a {
    font-size: 0.85rem;
    text-decoration: none;
}

.logout {
    margin: 0;
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    width: auto;
    font-size: 0.85rem;
    color: var(--pico-primary);
    cursor: pointer;
}

/* ---------- forms and notices ---------- */

.narrow {
    max-width: 26rem;
    margin-inline: auto;
    padding-block: 2rem;
}

.notice {
    padding: 0.75rem 1rem;
    border-radius: var(--pico-border-radius);
    font-size: 0.9rem;
}

.notice--error {
    background: color-mix(in srgb, var(--pico-del-color) 15%, transparent);
}

.notice--success {
    background: color-mix(in srgb, var(--pico-ins-color) 15%, transparent);
}

button.danger {
    background: var(--pico-del-color);
    border-color: var(--pico-del-color);
}

/* Wide tables scroll inside their own box instead of pushing the page sideways. */
.table-scroll {
    overflow-x: auto;
}

.table-scroll form {
    margin: 0;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.table-scroll button,
.table-scroll select {
    margin: 0;
    width: auto;
}

.form-narrow {
    max-width: 26rem;
}