/*
    PrimePACS theme layer.
    Default theme is light.
    Viewer image panels stay black because medical images need a black viewing field.
*/

:root,
html[data-theme="light"] {
    --bg: #f3f7fb;
    --panel: #ffffff;
    --panel-soft: #eaf1f8;
    --text: #102033;
    --muted: #5d6b7c;
    --border: #d6e0ea;
    --accent: #047fa8;
    --danger: #c24141;
    --ok: #059669;
    --input: #ffffff;

    color-scheme: light;
}

html[data-theme="dark"] {
    --bg: #0f172a;
    --panel: #111827;
    --panel-soft: #1f2937;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --border: #374151;
    --accent: #38bdf8;
    --danger: #f87171;
    --ok: #34d399;
    --input: #0b1220;

    color-scheme: dark;
}

html[data-theme="light"] body {
    background:
        radial-gradient(circle at top, rgba(4, 127, 168, 0.13), transparent 32%),
        var(--bg);
    color: var(--text);
}

html[data-theme="dark"] body {
    background: #0b1120;
    color: var(--text);
}

html[data-theme="light"] .login-body {
    background:
        radial-gradient(circle at top, rgba(4, 127, 168, 0.16), transparent 35%),
        #edf5fb;
}

html[data-theme="dark"] .login-body {
    background:
        radial-gradient(circle at top, rgba(56, 189, 248, 0.20), transparent 35%),
        #0b1120;
}

html[data-theme="light"] .login-card,
html[data-theme="light"] .panel,
html[data-theme="light"] .topbar,
html[data-theme="light"] .viewer-sidebar {
    background: rgba(255, 255, 255, 0.96);
    border-color: var(--border);
    color: var(--text);
    box-shadow: 0 18px 45px rgba(15, 42, 70, 0.10);
}

html[data-theme="dark"] .login-card,
html[data-theme="dark"] .panel,
html[data-theme="dark"] .topbar,
html[data-theme="dark"] .viewer-sidebar {
    background: rgba(17, 24, 39, 0.98);
    border-color: var(--border);
    color: var(--text);
}

html[data-theme="light"] .viewer-main,
html[data-theme="light"] .viewer-toolbar,
html[data-theme="light"] .multi-viewer-stage,
html[data-theme="light"] .viewport {
    background: #000;
}

html[data-theme="light"] .viewer-toolbar {
    border-bottom-color: #2f3b46;
}

html[data-theme="light"] .viewer-sidebar-scroll,
html[data-theme="light"] .sidebar-heading,
html[data-theme="light"] .mobile-sidebar-head {
    background: var(--panel);
}

html[data-theme="light"] .study-meta,
html[data-theme="light"] .patient-study-item,
html[data-theme="light"] .loaded-study-card,
html[data-theme="light"] .image-item,
html[data-theme="light"] .result-card {
    background: rgba(4, 127, 168, 0.055);
    border-color: var(--border);
    color: var(--text);
}

html[data-theme="light"] .patient-study-item.loaded {
    background: rgba(5, 150, 105, 0.10);
    border-color: rgba(5, 150, 105, 0.45);
}

html[data-theme="light"] .loaded-study-title {
    background: rgba(4, 127, 168, 0.13);
    border-bottom-color: var(--border);
}

html[data-theme="light"] .series-title {
    background: #e6eef6;
}

html[data-theme="light"] input,
html[data-theme="light"] select {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text);
}

html[data-theme="light"] input::placeholder {
    color: rgba(16, 32, 51, 0.58);
}

html[data-theme="light"] .button.ghost,
html[data-theme="light"] button.ghost {
    background: rgba(16, 32, 51, 0.06);
    color: var(--text);
    border-color: var(--border);
}

html[data-theme="light"] .results-table th {
    background: #eaf1f8;
    color: #334155;
}

html[data-theme="light"] .results-table td {
    border-bottom-color: var(--border);
}

html[data-theme="light"] .stack-open-button {
    background: rgba(5, 150, 105, 0.12);
    color: #064e3b;
    border-color: rgba(5, 150, 105, 0.42);
}

html[data-theme="light"] .stack-open-text span {
    color: var(--text);
}

html[data-theme="light"] .stack-open-text em,
html[data-theme="light"] .thumb-text span,
html[data-theme="light"] .muted {
    color: var(--muted);
}

html[data-theme="light"] .toggle-btn.active,
html[data-theme="light"] .viewer-toolbar button.active,
html[data-theme="light"] .layout-btn.active {
    background: var(--ok);
    color: #ffffff;
}

html[data-theme="light"] .viewer-toolbar button,
html[data-theme="light"] .viewer-toolbar .button {
    background: var(--accent);
    color: #ffffff;
}

.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    padding: 0;
    font-size: 1.2rem;
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
    z-index: 20;
}

.theme-toggle:hover {
    filter: brightness(1.04);
    transform: translateY(-1px);
}

.login-theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
}

.dashboard-theme-toggle {
    position: absolute;
    left: 14px;
    top: 14px;
}

.compact-search-grid-short {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
}

@media (max-width: 1250px) {
    .compact-search-grid-short {
        grid-template-columns: repeat(3, minmax(150px, 1fr));
    }
}

@media (max-width: 760px) {
    .theme-toggle {
        width: 38px;
        height: 38px;
        font-size: 1.1rem;
    }

    .login-theme-toggle {
        top: 10px;
        right: 10px;
    }

    .dashboard-theme-toggle {
        top: 8px;
        left: 8px;
    }

    .compact-search-grid-short {
        grid-template-columns: 1fr;
    }

    html[data-theme="light"] .viewer-sidebar-backdrop {
        background: rgba(16, 32, 51, 0.35);
    }
}