/* app.css */

/* 1) Base tokens (LIGHT default) */
:root {
    color-scheme: light;

    /* Brand */
    --tac-primary: #0b3a53;
    --tac-primary-hover: #0a2f43;
    --tac-link: #0b5ea8;

    --tac-accent: #f59e0b;
    --tac-focus: #2b90d9;

    /* Surfaces */
    --tac-bg: #ffffff;
    --tac-surface: #f6f8fb;
    --tac-border: #e5eaf2;

    /* Text */
    --tac-text: #0f172a;
    --tac-text-muted: #475569;

    /* Validation */
    --tac-valid: #16a34a;
    --tac-invalid: #dc2626;

    /* Shadows */
    --tac-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
}

/* 2) DARK tokens (automatic when OS is dark) */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;

        --tac-bg: #0b1220;         /* deep navy */
        --tac-surface: #111b2e;    /* cards */
        --tac-border: #22304a;

        --tac-text: #e5e7eb;
        --tac-text-muted: #a8b3c7;

        /* Keep brand but tune for dark contrast */
        --tac-primary: #39a6c9;        /* brighter teal for dark UI */
        --tac-primary-hover: #2e93b3;
        --tac-link: #7dd3fc;

        --tac-focus: rgba(125, 211, 252, 0.65);

        --tac-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    }
}

/* 3) Manual override (wins over OS preference) */
/* Force LIGHT */
html[data-theme="light"] {
    color-scheme: light;

    --tac-bg: #ffffff;
    --tac-surface: #f6f8fb;
    --tac-border: #e5eaf2;

    --tac-text: #0f172a;
    --tac-text-muted: #475569;

    --tac-primary: #0b3a53;
    --tac-primary-hover: #0a2f43;
    --tac-link: #0b5ea8;

    --tac-focus: #2b90d9;
    --tac-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
}

/* Force DARK */
html[data-theme="dark"] {
    color-scheme: dark;

    --tac-bg: #0b1220;
    --tac-surface: #111b2e;
    --tac-border: #22304a;

    --tac-text: #e5e7eb;
    --tac-text-muted: #a8b3c7;

    --tac-primary: #39a6c9;
    --tac-primary-hover: #2e93b3;
    --tac-link: #7dd3fc;

    --tac-focus: rgba(125, 211, 252, 0.65);
    --tac-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
}

/* 4) Apply tokens */
html, body {
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    background: var(--tac-bg);
    color: var(--tac-text);
}

/* Links */
a,
.btn-link {
    color: var(--tac-link);
}
a:hover,
.btn-link:hover {
    color: var(--tac-primary);
}

/* Focus ring */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem rgba(255, 255, 255, 0.85), 0 0 0 0.25rem var(--tac-focus);
}

/* Validation */
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--tac-valid); }
.invalid { outline: 1px solid var(--tac-invalid); }
.validation-message { color: var(--tac-invalid); }

/* Blazor error boundary (keep SVG, adapt bg for theme) */
.blazor-error-boundary {
    background:
            url(data:image/svg+xml;base64,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)
            no-repeat 1rem/1.8rem,
            #b91c1c;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}
.blazor-error-boundary::after { content: "An error has occurred."; }

/* Checkbox border */
.darker-border-checkbox.form-check-input { border-color: #929292; }

/* Keep template behavior */
.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}
.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Optional: unify borders a bit */
.card,
.modal-content,
.dropdown-menu {
    border-color: var(--tac-border);
    background: var(--tac-surface);
    box-shadow: var(--tac-shadow-sm);
    color: var(--tac-text);
}

/* ═══════════════════════════════════════════════════
   Global UI Enhancements — modern / sleek / techy
   ═══════════════════════════════════════════════════ */

/* ── Headings ───────────────────────────────────────── */
h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--tac-text);
    margin-bottom: 1.25rem;
}

h1:focus { outline: none; }

/* ── Tables ─────────────────────────────────────────── */
.table {
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--tac-border);
    font-size: 0.875rem;
    background: var(--tac-surface);
}

.table thead th {
    background: var(--tac-primary) !important;
    color: #fff !important;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    border: none;
    padding: 0.75rem 1rem;
}

.table-dark th {
    background: var(--tac-primary) !important;
}

.table tbody tr {
    border-bottom: 1px solid var(--tac-border);
    transition: background 0.12s;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background: color-mix(in srgb, var(--tac-surface) 85%, var(--tac-border));
    color: var(--tac-text);
}

.table-hover > tbody > tr:hover > * {
    background: color-mix(in srgb, var(--tac-primary) 8%, var(--tac-surface));
    color: var(--tac-text);
}

.table td, .table th {
    padding: 0.65rem 1rem;
    vertical-align: middle;
}

/* ── Cards ──────────────────────────────────────────── */
.card {
    border-radius: 10px;
    border: 1px solid var(--tac-border);
    background: var(--tac-surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--tac-border);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--tac-text-muted);
    padding: 0.85rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* ── Form controls ──────────────────────────────────── */
.form-control,
.form-select {
    background: var(--tac-bg);
    border: 1px solid var(--tac-border);
    color: var(--tac-text);
    border-radius: 6px;
    font-size: 0.875rem;
    padding: 0.45rem 0.75rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
    background: var(--tac-bg);
    border-color: var(--tac-primary);
    color: var(--tac-text);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--tac-focus) 30%, transparent);
    outline: none;
}

.form-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--tac-text-muted);
    margin-bottom: 0.35rem;
}

/* ── Buttons ────────────────────────────────────────── */
.btn {
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
    padding: 0.4rem 1rem;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
    color: #fff;
    background-color: var(--tac-primary);
    border-color: var(--tac-primary);
}
.btn-primary:hover,
.btn-primary:active,
.btn-primary.active {
    color: #fff;
    background-color: var(--tac-primary-hover);
    border-color: var(--tac-primary-hover);
    box-shadow: 0 2px 8px rgba(11, 58, 83, 0.35);
}

.btn-success {
    background: #15803d;
    border-color: #15803d;
    color: #fff;
}
.btn-success:hover {
    background: #166534;
    border-color: #166534;
    color: #fff;
}

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

.btn-sm {
    padding: 0.25rem 0.65rem;
    font-size: 0.78rem;
    border-radius: 5px;
}

/* ── Alerts ─────────────────────────────────────────── */
.alert-danger {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.3);
    border-left: 3px solid #dc2626;
    color: var(--tac-text);
    border-radius: 8px;
    font-size: 0.875rem;
}

/* ── Loading / empty states ─────────────────────────── */
p em {
    color: var(--tac-text-muted);
    font-style: normal;
    font-size: 0.875rem;
}

.text-muted {
    color: var(--tac-text-muted) !important;
    font-size: 0.875rem;
}

/* ── Page content padding ───────────────────────── */
.content {
    padding-top: 1.75rem;
    padding-bottom: 2rem;
}

/* ── Sign-in modal ──────────────────────────────── */
.modal-content {
    border-radius: 12px;
    border: 1px solid var(--tac-border);
    background: var(--tac-surface);
    color: var(--tac-text);
}

.modal-header {
    border-bottom: 1px solid var(--tac-border);
    padding: 1rem 1.25rem;
}

.modal-footer {
    border-top: 1px solid var(--tac-border);
    padding: 0.85rem 1.25rem;
}

.signin-modal-icon {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    background-size: cover;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230b3a53' viewBox='0 0 16 16'%3E%3Cpath d='M8 8a3 3 0 1 0 0-6 3 3 0 0 0 0 6zm2-3a2 2 0 1 1-4 0 2 2 0 0 1 4 0zm4 8c0 1-1 1-1 1H3s-1 0-1-1 1-4 6-4 6 3 6 4zm-1-.004c-.001-.246-.154-.986-.832-1.664C11.516 10.68 10.029 10 8 10c-2.029 0-3.516.68-4.168 1.332-.678.678-.83 1.418-.832 1.664h10z'/%3E%3C/svg%3E");
}

.signin-placeholder-banner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, color-mix(in srgb, var(--tac-primary) 10%, transparent), color-mix(in srgb, var(--tac-primary) 5%, transparent));
    border: 1px solid color-mix(in srgb, var(--tac-primary) 25%, transparent);
    border-radius: 8px;
    padding: 0.85rem 1rem;
}

.signin-placeholder-badge {
    display: inline-block;
    background: var(--tac-accent);
    color: #1a1a1a;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
}

.signin-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.signin-feature-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--tac-text-muted);
}

.signin-feature-list li::before {
    content: '';
    display: inline-block;
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: var(--tac-primary);
    flex-shrink: 0;
}