/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #475569;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* === Standalone Layout === */
.app-wrapper {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
}

/* === Pages === */
.page { display: flex; flex-direction: column; gap: 1.5rem; max-width: 1200px; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0 1rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

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

main { display: flex; flex-direction: column; gap: 1.5rem; }

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .grid-2 { grid-template-columns: 1fr; }
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.card-header h2 { font-size: 1rem; font-weight: 600; }

.card-body { padding: 1.25rem; }

/* === Summary Cards === */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

@media (max-width: 900px) {
    .summary-cards { grid-template-columns: repeat(2, 1fr); }
}

.summary-card {
    padding: 1.25rem;
    text-align: center;
}

.card-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.summary-card.income .card-value { color: var(--green); }
.summary-card.expenses .card-value { color: var(--red); }
.summary-card.balance .card-value { color: var(--primary-hover); }
.summary-card.budget .card-value { color: var(--yellow); }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.15s;
}

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

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

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

.btn-icon {
    width: 2rem;
    height: 2rem;
    padding: 0;
    border-radius: 50%;
    font-size: 1rem;
}

.btn-sm { padding: 0.25rem 0.75rem; font-size: 0.8rem; }

.btn-danger {
    color: var(--red);
    border-color: transparent;
    background: transparent;
    padding: 0.25rem 0.5rem;
}

.btn-danger:hover { background: rgba(239, 68, 68, 0.15); }

/* === Forms === */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group { flex: 1; }

input, select {
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text);
    font-size: 0.9rem;
    transition: border-color 0.15s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
}

/* === Chart === */
canvas { width: 100% !important; }

/* === Utility === */
.hidden { display: none !important; }

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* === SBLOC === */
.sbloc-params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem 1rem;
}

.sbloc-params-grid .form-group { margin-bottom: 0; }

.slider-input {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.slider-input input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-input);
    outline: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

.slider-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--primary-hover);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.slider-input input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

.slider-input input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--primary-hover);
    cursor: pointer;
}

.slider-input input[type="range"]::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: var(--bg-input);
}

.sbloc-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.sbloc-tab {
    padding: 0.6rem 1.25rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
}

.sbloc-tab:hover { color: var(--text); }

.sbloc-tab.active {
    color: var(--primary-hover);
    border-bottom-color: var(--primary);
}

.sbloc-summary-cards {
    grid-template-columns: repeat(6, 1fr);
}

.sbloc-summary-cards .card-label { font-size: 0.65rem; }
.sbloc-summary-cards .card-value { font-size: 1.1rem; }

.sbloc-delta {
    font-size: 0.7rem;
    font-weight: 600;
    margin-top: 0.2rem;
}

@media (max-width: 1100px) {
    .sbloc-summary-cards { grid-template-columns: repeat(3, 1fr); }
}

/* Salary Comparison */
.salary-compare-card {
    background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(139,92,246,0.06));
    border: 1px solid rgba(99,102,241,0.2);
}

.salary-compare-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.salary-compare-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.salary-compare-left input {
    text-align: center;
    font-weight: 600;
}

.salary-compare-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.salary-compare-result {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    flex-wrap: wrap;
}

#sbloc-summary-section > *,
#sbloc-summary-section .grid-2 {
    margin-bottom: 1rem;
}

.sbloc-table-wrap {
    overflow-x: auto;
}

.sbloc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    white-space: nowrap;
}

.sbloc-table th {
    text-align: right;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: sticky;
    top: 0;
    background: var(--bg-card);
}

.sbloc-table th:first-child { text-align: center; }

.sbloc-table td {
    text-align: right;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid rgba(71,85,105,0.3);
}

.sbloc-table td:first-child { text-align: center; }

.sbloc-table tbody tr:hover { background: rgba(99,102,241,0.06); }

.phase-badge {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.phase-1 { background: rgba(99,102,241,0.15); color: #818cf8; }
.phase-2 { background: rgba(16,185,129,0.15); color: #34d399; }

.ltv-ok { color: var(--green); }
.ltv-warn { color: var(--yellow); }
.ltv-danger { color: var(--red); }

/* Waterfall */
.sbloc-waterfall {
    width: 100%;
}

.wf-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(71,85,105,0.3);
    font-size: 0.9rem;
}

.wf-row.wf-sub { color: var(--text-muted); }
.wf-row.wf-total { font-weight: 600; border-bottom: 2px solid var(--border); }
.wf-row.wf-highlight { font-weight: 700; color: var(--green); font-size: 1rem; }
.wf-row.wf-meta { color: var(--text-muted); font-size: 0.85rem; border-bottom: none; }
.wf-row.wf-warn { color: var(--red); font-weight: 600; border-bottom: none; padding-top: 0.75rem; }
.wf-neg { color: var(--red); }

.wf-layout {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.wf-left {
    flex: 1;
    min-width: 0;
}

.wf-right {
    flex: 1;
    min-width: 0;
}

@media (max-width: 768px) {
    .wf-layout { flex-direction: column; }
}

.wf-note {
    margin-top: 0;
    padding: 0.75rem 1rem;
    background: rgba(99, 102, 241, 0.06);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* SBLOC Life Events / Purchases */
.sbloc-purchase-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.sbloc-purchase-card:last-child { margin-bottom: 0; }

.sbloc-purchase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.sbloc-purchase-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.sbloc-purchase-fields {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.sbloc-purchase-fields .form-group { margin-bottom: 0; }
.sbloc-purchase-fields label { font-size: 0.8rem; color: var(--text-muted); }

/* Market Events / Crashes */
.crash-row {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.25rem 0;
}

.crash-row .form-group { margin-bottom: 0; }
.crash-row label { font-size: 0.75rem; }

.crash-presets {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.crash-preset-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.event-add-form {
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    margin-bottom: 0;
}

.event-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid rgba(71,85,105,0.3);
    font-size: 0.85rem;
}

.event-item:last-child { border-bottom: none; }

/* Filing Status Row */
.filing-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-wrap: wrap;
}

.filing-status-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filing-toggle {
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.filing-opt input { display: none; }

.filing-btn {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    border-right: 1px solid var(--border);
}

.filing-opt:last-child .filing-btn { border-right: none; }

.filing-opt input:checked + .filing-btn {
    background: var(--primary);
    color: white;
}

.filing-status-summary {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Phase 2 Strategy Radio */
.p2-strategy-section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}

.setup-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
}

.p2-strategy-options {
    display: flex;
    gap: 0.75rem;
}

.p2-radio input { display: none; }

.p2-radio-btn {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    cursor: pointer;
    transition: all 0.15s;
    flex: 1;
}

.p2-radio-btn:hover { border-color: var(--text-muted); }

.p2-radio input:checked + .p2-radio-btn {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.1);
}

.p2-radio-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.p2-radio input:checked + .p2-radio-btn .p2-radio-title {
    color: var(--primary-hover);
}

.p2-radio-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* === Responsive: Tablet === */
@media (max-width: 768px) {
    .app-wrapper {
        padding: 1rem;
    }

    .sbloc-summary-cards { grid-template-columns: repeat(3, 1fr); }
}

/* === Responsive: Mobile === */
@media (max-width: 500px) {
    .app-wrapper {
        padding: 0.75rem;
    }

    /* Page header */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 0.25rem 0 0.75rem;
    }

    .page-header h1 { font-size: 1.25rem; }

    /* Summary cards */
    .summary-cards { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
    .summary-card { padding: 0.75rem; }
    .card-label { font-size: 0.7rem; }
    .card-value { font-size: 1.15rem; }

    /* Cards */
    .card-header { padding: 0.75rem 1rem; }
    .card-header h2 { font-size: 0.9rem; }
    .card-body { padding: 0.75rem; }

    /* Forms */
    .form-row { flex-direction: column; gap: 0; }
    .form-group label { font-size: 0.75rem; }
    input, select { font-size: 0.85rem; padding: 0.5rem 0.6rem; }

    /* Grid layouts */
    .grid-2 { grid-template-columns: 1fr; gap: 1rem; }

    /* SBLOC */
    .sbloc-params-grid { grid-template-columns: 1fr; gap: 0.5rem; }

    .sbloc-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .sbloc-tab { padding: 0.5rem 0.75rem; font-size: 0.8rem; white-space: nowrap; }

    .sbloc-summary-cards { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }

    .sbloc-table th { padding: 0.5rem 0.5rem; font-size: 0.7rem; }
    .sbloc-table td { padding: 0.35rem 0.5rem; font-size: 0.75rem; }

    .sbloc-waterfall { max-width: 100%; }
    .wf-row { font-size: 0.8rem; padding: 0.4rem 0; }
    .wf-row.wf-highlight { font-size: 0.9rem; }

    /* Life events */
    .sbloc-purchase-card { padding: 0.75rem; }
    .sbloc-purchase-fields { flex-direction: column; gap: 0.5rem; }
    .sbloc-purchase-fields .form-group { width: 100% !important; flex: none !important; }
    .p2-strategy-options { flex-direction: column; }

    /* Scenario compare */
    .sbloc-params-grid + .btn { width: 100%; }
}