/*
    The look every surface shares, on top of Bootstrap 5.3.

    Here rather than in each host's wwwroot for the reason the pages and the layout are in
    this project: the phone renders the same components, and a second copy of the theme was
    a second theme to keep in step. Both hosts link it as _content/Snappy.Shared/snappy.css,
    the same path their JS interop already imports from (docs/web.md).

    Almost everything is done by setting Bootstrap's own CSS variables, so a component that
    uses a stock Bootstrap class picks the theme up without knowing it exists.
*/

:root {
    --snappy-primary: #1a56db;
    --snappy-primary-rgb: 26, 86, 219;
    --snappy-primary-hover: #1648b8;
    --snappy-primary-soft: rgba(26, 86, 219, 0.08);
    --snappy-ink: #1f2937;
    --snappy-muted: #6b7280;
    --snappy-border: #e4e8ef;
    --snappy-surface: #ffffff;
    --snappy-canvas: #f4f6f9;
    --snappy-radius: 0.5rem;
    --snappy-shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.04);
    --snappy-topbar: 3.5rem;
    --snappy-sidebar: 16rem;

    /* Bootstrap reads these for the body, links, borders and the focus ring. A system font
       stack, because the phone has no network to fetch a web font from, and the platform's
       own face is what its users read everything else in. */
    --bs-body-bg: var(--snappy-canvas);
    --bs-body-color: var(--snappy-ink);
    --bs-body-font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --bs-body-font-size: 0.9375rem;
    --bs-body-line-height: 1.5;
    --bs-heading-color: #111827;
    --bs-secondary-color: var(--snappy-muted);
    --bs-border-color: var(--snappy-border);
    --bs-border-radius: var(--snappy-radius);
    --bs-border-radius-sm: 0.375rem;
    --bs-link-color-rgb: var(--snappy-primary-rgb);
    --bs-link-hover-color-rgb: 22, 72, 184;
    --bs-primary: var(--snappy-primary);
    --bs-primary-rgb: var(--snappy-primary-rgb);
    --bs-focus-ring-color: rgba(26, 86, 219, 0.25);
}

/* ---- Type ------------------------------------------------------------------------------ */

h1, .h1, h2, .h2, h3, .h3, h4, .h4 {
    font-weight: 600;
    letter-spacing: -0.01em;
}

h1, .h1 {
    font-size: 1.5rem;
}

h2, .h2 {
    font-size: 1.125rem;
}

h1:focus {
    outline: none;
}

a {
    text-decoration: none;
}

    a:hover {
        text-decoration: underline;
    }

/* ---- Page structure ------------------------------------------------------------------- */

.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    margin-bottom: 1.5rem;
}

    .page-header h1 {
        margin: 0;
    }

.page-subtitle {
    margin: 0.25rem 0 0;
    color: var(--snappy-muted);
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--snappy-muted);
}

    .back-link:hover {
        color: var(--snappy-primary);
        text-decoration: none;
    }

/* The filter row above a list: a strip on the canvas rather than a card, so the list below
   is the one framed thing on the screen. */
.filter-bar {
    margin-bottom: 1rem;
}

    .filter-bar .form-label {
        font-size: 0.8125rem;
        color: var(--snappy-muted);
        margin-bottom: 0.25rem;
    }

/* ---- Cards ---------------------------------------------------------------------------- */

.card {
    --bs-card-border-color: var(--snappy-border);
    --bs-card-cap-bg: transparent;
    --bs-card-spacer-y: 1.25rem;
    --bs-card-spacer-x: 1.25rem;
    --bs-card-cap-padding-y: 0.875rem;
    --bs-card-cap-padding-x: 1.25rem;
    box-shadow: var(--snappy-shadow);
}

.card-header {
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

    .card-header h2 {
        margin: 0;
        font-size: 1rem;
    }

/* A table that is the whole card: the rows run edge to edge and the corners stay round. */
.card > .table-responsive {
    border-radius: calc(var(--bs-card-border-radius) - 1px);
}

    .card > .table-responsive > .table {
        margin-bottom: 0;
    }

/* ---- Tables --------------------------------------------------------------------------- */

.table {
    --bs-table-hover-bg: rgba(26, 86, 219, 0.04);
    --bs-table-striped-bg: #f9fafb;
    --bs-table-border-color: var(--snappy-border);
}

    .table > thead > tr > th {
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--snappy-muted);
        background: #f9fafb;
        border-bottom-width: 1px;
        white-space: nowrap;
    }

    .table > :not(caption) > * > * {
        padding: 0.75rem 1.25rem;
    }

    .table.table-sm > :not(caption) > * > * {
        padding: 0.5rem 0.75rem;
    }

    .table > tbody > tr:last-child > * {
        border-bottom-width: 0;
    }

/* The actions column: buttons sit in a row, and never wrap one under another. */
.row-actions {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    white-space: nowrap;
}

/* ---- Buttons and forms ---------------------------------------------------------------- */

.btn {
    --bs-btn-font-weight: 500;
}

.btn-primary {
    --bs-btn-bg: var(--snappy-primary);
    --bs-btn-border-color: var(--snappy-primary);
    --bs-btn-hover-bg: var(--snappy-primary-hover);
    --bs-btn-hover-border-color: var(--snappy-primary-hover);
    --bs-btn-active-bg: #123c9c;
    --bs-btn-active-border-color: #123c9c;
    --bs-btn-disabled-bg: var(--snappy-primary);
    --bs-btn-disabled-border-color: var(--snappy-primary);
}

.btn-outline-primary {
    --bs-btn-color: var(--snappy-primary);
    --bs-btn-border-color: var(--snappy-primary);
    --bs-btn-hover-bg: var(--snappy-primary);
    --bs-btn-hover-border-color: var(--snappy-primary);
    --bs-btn-active-bg: var(--snappy-primary-hover);
    --bs-btn-active-border-color: var(--snappy-primary-hover);
    --bs-btn-disabled-color: var(--snappy-primary);
    --bs-btn-disabled-border-color: var(--snappy-primary);
}

.btn-outline-secondary {
    --bs-btn-color: var(--snappy-ink);
    --bs-btn-border-color: #cfd5df;
    --bs-btn-hover-bg: var(--snappy-canvas);
    --bs-btn-hover-color: var(--bs-heading-color);
    --bs-btn-hover-border-color: #b9c1cd;
    --bs-btn-active-bg: #e9edf3;
    --bs-btn-active-color: var(--bs-heading-color);
    --bs-btn-active-border-color: #b9c1cd;
    --bs-btn-disabled-color: var(--snappy-muted);
    --bs-btn-disabled-border-color: #cfd5df;
}

.btn-link {
    --bs-btn-color: var(--snappy-primary);
    --bs-btn-hover-color: var(--snappy-primary-hover);
    text-decoration: none;
}

    .btn-link:hover {
        text-decoration: underline;
    }

.btn .bi {
    vertical-align: -0.125em;
}

.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
}

.form-control, .form-select {
    border-color: #cfd5df;
}

    .form-control:focus, .form-select:focus {
        border-color: #93b4f5;
        box-shadow: 0 0 0 0.25rem rgba(26, 86, 219, 0.15);
    }

.form-check-input:checked {
    background-color: var(--snappy-primary);
    border-color: var(--snappy-primary);
}

.form-check-input:focus {
    border-color: #93b4f5;
    box-shadow: 0 0 0 0.25rem rgba(26, 86, 219, 0.15);
}

.form-text {
    color: var(--snappy-muted);
}

/* Blazor's own validation classes on the inputs, and its message component. A field that
   is wrong turns red; one that is right says nothing, the way a form on paper does. */
.form-control.invalid, .form-select.invalid {
    border-color: var(--bs-danger);
}

    .form-control.invalid:focus, .form-select.invalid:focus {
        box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.15);
    }

.validation-message {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: var(--bs-danger);
}

/* ---- States --------------------------------------------------------------------------- */

.loading {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 2rem 0;
    color: var(--snappy-muted);
}

.empty-state {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--snappy-muted);
}

    .empty-state .bi {
        display: block;
        margin: 0 auto 0.75rem;
        font-size: 2rem;
        opacity: 0.5;
    }

.alert {
    --bs-alert-border-radius: var(--snappy-radius);
}

/* ---- Home tiles ----------------------------------------------------------------------- */

.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
    gap: 1rem;
}

.tile {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--snappy-surface);
    border: 1px solid var(--snappy-border);
    border-radius: var(--snappy-radius);
    box-shadow: var(--snappy-shadow);
    color: var(--bs-heading-color);
    font-weight: 600;
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

    .tile:hover {
        text-decoration: none;
        border-color: #b9c9ef;
        box-shadow: 0 4px 12px rgba(26, 86, 219, 0.12);
        color: var(--snappy-primary);
    }

    .tile .bi {
        flex: none;
        box-sizing: content-box;
        width: 1.25rem;
        height: 1.25rem;
        padding: 0.75rem;
        border-radius: 0.625rem;
        background: var(--snappy-primary-soft);
        color: var(--snappy-primary);
    }

/* ---- Stamping ------------------------------------------------------------------------- */

/* The one figure the screen exists to show, large enough to read from across a room. */
.stamp-elapsed {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
    color: var(--bs-heading-color);
}

.stamp-running {
    border-left: 4px solid var(--bs-success);
}

/* ---- Sign in -------------------------------------------------------------------------- */

.auth-card {
    max-width: 26rem;
    margin: 2rem auto;
}

/* ---- Blazor's error boundary ---------------------------------------------------------- */

.blazor-error-boundary {
    background: #fff5f5;
    border: 1px solid #f1b0b7;
    border-radius: var(--snappy-radius);
    padding: 1rem 1.25rem;
    color: #842029;
}

    .blazor-error-boundary::after {
        content: "An error has occurred.";
    }