*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Dark = default. Overridden by @media prefers-color-scheme: light OR
       by [data-theme="light"] stamped on <html> by the user's toggle. */
    --bg: #0f1117;
    --bg-panel: #1a1d27;
    --bg-input: #252830;
    --border: #2e3140;
    --text: #e1e4ed;
    --text-dim: #8b8fa3;
    --accent: #4f8ff7;
    --accent-hover: #6ba0f9;
    --success: #34d399;
    --error: #f87171;
    --warn: #fbbf24;
    /* --warn is a TEXT color on page bg. --warn-bg / --warn-fg is the paired
       background+foreground for badges/buttons where warn is the surface. */
    --warn-bg: #fbbf24;
    --warn-fg: #1a1300;
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
    --radius: 8px;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    color-scheme: dark;
}

/* Light theme — driven by OS preference unless user forced dark */
@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
        --bg: #f5f7fa;
        --bg-panel: #ffffff;
        --bg-input: #eef1f5;
        --border: #d8dde5;
        --text: #1a1d27;
        --text-dim: #64707d;
        --accent: #2c6ad1;
        --accent-hover: #1e58b8;
        --success: #059669;
        --error: #dc2626;
        --warn: #b45309;
        --warn-bg: #f59e0b;
        --warn-fg: #1a1300;
        --shadow: 0 1px 3px rgba(15,17,23,0.08);
        color-scheme: light;
    }
}

/* Explicit user toggle wins in both directions */
:root[data-theme="light"] {
    --bg: #f5f7fa;
    --bg-panel: #ffffff;
    --bg-input: #eef1f5;
    --border: #d8dde5;
    --text: #1a1d27;
    --text-dim: #64707d;
    --accent: #2c6ad1;
    --accent-hover: #1e58b8;
    --success: #059669;
    --error: #dc2626;
    --warn: #b45309;
    --warn-bg: #f59e0b;
    --warn-fg: #1a1300;
    --shadow: 0 1px 3px rgba(15,17,23,0.08);
    color-scheme: light;
}
:root[data-theme="dark"] {
    --bg: #0f1117;
    --bg-panel: #1a1d27;
    --bg-input: #252830;
    --border: #2e3140;
    --text: #e1e4ed;
    --text-dim: #8b8fa3;
    --accent: #4f8ff7;
    --accent-hover: #6ba0f9;
    --success: #34d399;
    --error: #f87171;
    --warn: #fbbf24;
    --warn-bg: #fbbf24;
    --warn-fg: #1a1300;
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
    color-scheme: dark;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

.layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

header h1 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--accent);
}

.server-config {
    display: flex;
    align-items: center;
    gap: 8px;
}

.server-config label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.server-config input {
    width: 280px;
}

.hint {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

@media (max-width: 900px) {
    .main {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.panel h2 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.panel h2:not(:first-child) {
    margin-top: 24px;
}

/* Form */
.form-row {
    margin-bottom: 14px;
}

.form-row label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-dim);
    margin-bottom: 4px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 8px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.88rem;
    font-family: var(--font-mono);
    outline: none;
    transition: border-color 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
}

textarea {
    resize: vertical;
    min-height: 200px;
    line-height: 1.4;
    tab-size: 4;
}

select {
    cursor: pointer;
}

.template-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.btn-template {
    padding: 5px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-template:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-template.active {
    border-color: var(--accent);
    background: rgba(79, 143, 247, 0.1);
    color: var(--accent);
}

.form-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.btn-primary {
    flex: 1;
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    padding: 10px 20px;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-secondary:hover {
    border-color: var(--text-dim);
    color: var(--text);
}

/* Response */
.response-meta {
    margin-bottom: 12px;
    font-size: 0.82rem;
}

.response-meta .status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    font-family: var(--font-mono);
}

.response-meta .status.ok {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
}

.response-meta .status.error {
    background: rgba(248, 113, 113, 0.15);
    color: var(--error);
}

.response-meta .timing {
    color: var(--text-dim);
    margin-left: 10px;
}

.response-body {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 400px;
    overflow-y: auto;
    color: var(--text-dim);
}

.response-body.has-response {
    color: var(--text);
}

/* History */
.history {
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.1s;
}

.history-item:hover {
    background: var(--bg-input);
}

.history-item .h-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.history-item .h-status.ok { background: var(--success); }
.history-item .h-status.error { background: var(--error); }

.history-item .h-time {
    color: var(--text-dim);
    font-family: var(--font-mono);
    flex-shrink: 0;
}

.history-item .h-model {
    font-weight: 600;
    color: var(--accent);
    flex-shrink: 0;
}

.history-item .h-message {
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner::after {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
    margin-left: 8px;
}

/* ═══ Tab Bar ═══ */
.tab-bar {
    display: flex;
    gap: 4px;
}

.tab-btn {
    padding: 6px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.tab-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.text-dim { color: var(--text-dim); }

/* ═══ Connect Card ═══ */
.connect-card {
    max-width: 440px;
    margin: 60px auto;
}

.connect-card h2 {
    text-align: center;
    margin-bottom: 20px;
}

.connect-status {
    margin-top: 12px;
    text-align: center;
}

.branding {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.8;
}

.branding a {
    color: var(--accent);
    text-decoration: none;
}

.branding a:hover {
    text-decoration: underline;
}

/* ═══ Group Filter Bar ═══ */
.group-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    padding: 10px 16px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.group-label {
    font-size: 0.78rem;
    color: var(--text-dim);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-right: 4px;
}

.group-btn {
    padding: 4px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-dim);
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.15s;
}

.group-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.group-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.group-count {
    font-size: 0.68rem;
    opacity: 0.7;
}

/* ═══ Tags ═══ */
.scenario-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.tag {
    display: inline-block;
    padding: 1px 7px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.68rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

.tag-sm {
    padding: 0px 5px;
    font-size: 0.65rem;
}

.scenario-count {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-weight: 400;
}

/* ═══ Demo Layout ═══ */
.demo-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.demo-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 20px;
}

.demo-status {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.demo-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.demo-badge.active {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
}

.demo-badge.inactive {
    background: rgba(248, 113, 113, 0.15);
    color: var(--error);
}

.demo-stats {
    font-size: 0.82rem;
    color: var(--text-dim);
}

.demo-stats strong {
    color: var(--text);
}

.demo-stats code {
    background: var(--bg-input);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 0.8rem;
}

.demo-actions {
    display: flex;
    gap: 8px;
}

.btn-danger {
    color: var(--error) !important;
    border-color: rgba(248, 113, 113, 0.3) !important;
}

.btn-danger:hover {
    border-color: var(--error) !important;
}

.demo-main {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 16px;
    align-items: start;
}

@media (max-width: 900px) {
    .demo-main {
        grid-template-columns: 1fr;
    }
}

/* ═══ Scenario Cards ═══ */
.scenario-list {
    display: block;
    max-height: 600px;
    overflow-y: auto;
}

.scenario-list > * + * {
    margin-top: 10px;
}

.scenario-card {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    transition: border-color 0.15s;
}

.scenario-card:hover {
    border-color: var(--accent);
}

.scenario-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.scenario-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.scenario-steps {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

.scenario-desc {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 10px;
    line-height: 1.4;
}

.btn-run-scenario {
    padding: 4px 14px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-run-scenario:hover {
    background: var(--accent-hover);
}

.btn-run-scenario:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ═══ Test Results ═══ */
.test-results {
    display: block;
    max-height: 600px;
    overflow-y: auto;
}

.test-results > * + * {
    margin-top: 14px;
}

.results-summary {
    display: flex;
    gap: 16px;
    padding: 12px 16px;
    background: var(--bg-input);
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 600;
}

.summary-total { color: var(--text); }
.summary-passed { color: var(--success); }
.summary-failed { color: var(--error); }

.result-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.result-card.passed {
    border-color: rgba(52, 211, 153, 0.3);
}

.result-card.failed {
    border-color: rgba(248, 113, 113, 0.3);
}

.result-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-input);
}

.result-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.72rem;
    font-family: var(--font-mono);
}

.result-badge.passed {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
}

.result-badge.failed {
    background: rgba(248, 113, 113, 0.15);
    color: var(--error);
}

.result-name {
    font-weight: 600;
    font-size: 0.88rem;
    flex: 1;
}

.result-time {
    font-size: 0.78rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

.result-steps {
    padding: 6px 0;
}

.step-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    font-size: 0.82rem;
    flex-wrap: wrap;
}

.step-row.step-pass .step-icon { color: var(--success); }
.step-row.step-fail .step-icon { color: var(--error); }

.step-icon {
    font-weight: 700;
    font-size: 0.9rem;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.step-label {
    flex: 1;
    min-width: 150px;
}

.step-counters {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    background: var(--bg);
    padding: 1px 6px;
    border-radius: 3px;
}

.step-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    flex-shrink: 0;
}

.step-errors {
    width: 100%;
    padding-left: 26px;
}

.step-error {
    font-size: 0.78rem;
    color: var(--error);
    padding: 2px 0;
    font-family: var(--font-mono);
}

.running-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    font-size: 0.9rem;
    color: var(--accent);
}

/* ═══ Demo History Table ═══ */
.demo-history {
    max-height: 300px;
    overflow-y: auto;
}

.demo-history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.demo-history-table th {
    text-align: left;
    padding: 6px 10px;
    background: var(--bg-input);
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    position: sticky;
    top: 0;
}

.demo-history-table td {
    padding: 5px 10px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.demo-history-table tbody tr:hover {
    background: var(--bg-input);
}

/* ═══ Header grid layout (SGAPPSFISCAL rebrand) ═══
 * On wide viewports: 2 columns — title (fluid) | settings (auto, right).
 * On narrow (<720px): stack vertically, settings still aligned right. */
.header-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px 32px;
    align-items: center;
    width: 100%;    /* parent <header> is display:flex — force full width */
    flex: 1 1 auto;
}
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
    justify-self: end;
}
@media (max-width: 720px) {
    .header-grid {
        grid-template-columns: 1fr;
    }
    .header-right {
        justify-self: end;
    }
}

/* Role selection cards on index.html welcome page */
.role-card:hover {
    border-color: var(--accent) !important;
    background: rgba(79, 143, 247, 0.06) !important;
    transform: translateY(-1px);
}
.role-card {
    transition: all 0.15s ease;
}

/* OTP code cells */
.otp-cell {
    width: 48px;
    height: 58px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    caret-color: var(--accent);
}
.otp-cell:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79, 143, 247, 0.15);
}

/* Theme toggle button — icon-only, blends with header */
.theme-toggle-btn {
    padding: 4px 10px;
    font-size: 1.05rem;
    line-height: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
    transition: all 0.15s;
    /* preserve emoji rendering, avoid font-mono */
    font-family: -apple-system, "Segoe UI Emoji", "Apple Color Emoji", "Noto Color Emoji", sans-serif;
}
.theme-toggle-btn:hover {
    border-color: var(--accent);
    background: var(--bg-panel);
    transform: translateY(-1px);
}
.theme-toggle-btn:active {
    transform: translateY(0);
}

/* Light theme — inputs with borders (dark had none by default) */
:root[data-theme="light"] input,
:root[data-theme="light"] select,
:root[data-theme="light"] textarea {
    background: #ffffff;
}
:root[data-theme="light"] .panel {
    box-shadow: var(--shadow);
}

/* Utility classes for numeric table columns */
.text-right { text-align: right; }
.text-center { text-align: center; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }

/* Secondary/logout-style buttons — shared across operator/admin/superadmin */
.logout-btn {
    padding: 4px 12px;
    background: transparent;
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: var(--radius);
    color: var(--error);
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}
.logout-btn:hover {
    background: rgba(248, 113, 113, 0.08);
    border-color: rgba(248, 113, 113, 0.6);
}
.logout-btn:active { transform: translateY(1px); }
.logout-btn:disabled { opacity: 0.5; cursor: not-allowed; }
:root[data-theme="light"] .logout-btn {
    border-color: rgba(220, 38, 38, 0.35);
    color: var(--error);
}
:root[data-theme="light"] .logout-btn:hover {
    background: rgba(220, 38, 38, 0.06);
    border-color: rgba(220, 38, 38, 0.55);
}
