/* =========================================================
   Profit & Expense Tracker — "Ledger" design system
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
    /* Palette: ink + paper, with profit/expense accent colors */
    --ink: #0a0e27;
    --ink-soft: #3a4256;
    --paper: #f5f3f0;
    --paper-raised: #ffffff;
    --line: #ddd6c7;
    --line-soft: #ebe7dc;

    --profit: #1f7a5c;
    --profit-soft: #e3f3ec;
    --expense: #a8432f;
    --expense-soft: #f7e8e3;
    --accent: #c98a2c;
    --accent-soft: #fbf0dc;

    --font-display: 'Source Serif 4', 'Iowan Old Style', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;

    --radius: 6px;
    --shadow-card: 0 2px 8px rgba(10,14,39,0.08), 0 1px 3px rgba(10,14,39,0.04);
    --shadow-hover: 0 8px 24px rgba(10,14,39,0.12);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------- Topbar ---------- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--ink) 0%, #1a1e38 100%);
    color: var(--paper);
    flex-wrap: wrap;
    gap: 20px;
    box-shadow: 0 4px 12px rgba(10,14,39,0.15);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 22px;
    letter-spacing: 0.02em;
    font-weight: 700;
    color: var(--paper-raised);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 2px solid var(--accent);
    background: rgba(201, 138, 44, 0.1);
    border-radius: 6px;
    color: var(--accent);
    font-size: 18px;
}

.main-nav {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
    align-items: center;
}

.main-nav a {
    padding: 10px 16px;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.main-nav a:hover {
    color: var(--paper);
    background: rgba(255, 255, 255, 0.1);
}

.main-nav a.active {
    color: var(--ink);
    background: var(--accent);
    box-shadow: 0 2px 8px rgba(201, 138, 44, 0.3);
}

/* ---------- Layout ---------- */
.main-content {
    flex: 1;
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 32px 32px 56px;
}

.app-footer {
    text-align: center;
    font-size: 12px;
    color: var(--ink-soft);
    opacity: 0.6;
    padding: 18px;
}

/* ---------- Page heading ---------- */
.page-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.page-head h1 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 600;
    margin: 0;
}

.page-head .subtitle {
    font-size: 13.5px;
    color: var(--ink-soft);
    margin-top: 4px;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
}

/* ---------- Flash messages ---------- */
.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13.5px;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid transparent;
}
.flash-success { background: var(--profit-soft); color: var(--profit); border-color: var(--profit); }
.flash-error { background: var(--expense-soft); color: var(--expense); border-color: var(--expense); }

/* ---------- Summary cards ---------- */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 28px;
}

@media (max-width: 880px) {
    .summary-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
    .summary-grid { grid-template-columns: 1fr; }
}

.stat-card {
    background: var(--paper-raised);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow-card);
}

.stat-card .label {
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--ink-soft);
    margin-bottom: 8px;
}

.stat-card .value {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.stat-card.profit .value { color: var(--profit); }
.stat-card.expense .value { color: var(--expense); }
.stat-card .sub {
    font-size: 12px;
    color: var(--ink-soft);
    margin-top: 4px;
}

/* ---------- Balance line: signature element ---------- */
.balance-line-wrap {
    background: var(--paper-raised);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 20px 22px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-card);
}

.balance-line-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 12px;
}

.balance-line-header h3 {
    font-family: var(--font-display);
    font-size: 15px;
    margin: 0;
    font-weight: 600;
}

.balance-line-header .ratio-text {
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--ink-soft);
}

.balance-line {
    position: relative;
    height: 10px;
    border-radius: 6px;
    background: var(--line-soft);
    overflow: hidden;
    display: flex;
}

.balance-line .seg-profit { background: var(--profit); height: 100%; }
.balance-line .seg-expense { background: var(--expense); height: 100%; }

.balance-legend {
    display: flex;
    gap: 18px;
    margin-top: 10px;
    font-size: 12px;
    color: var(--ink-soft);
}
.balance-legend span { display: flex; align-items: center; gap: 6px; }
.balance-legend .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.profit { background: var(--profit); }
.dot.expense { background: var(--expense); }

/* ---------- Section blocks ---------- */
.section {
    margin-bottom: 32px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.section-title .count {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-soft);
    font-weight: 400;
}

/* ---------- Table ---------- */
.ledger-table-wrap {
    background: var(--paper-raised);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

table.ledger {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

table.ledger th {
    text-align: left;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 700;
    color: var(--ink-soft);
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--line-soft);
    white-space: nowrap;
}

table.ledger td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line-soft);
    vertical-align: middle;
}

table.ledger tbody tr:last-child td { border-bottom: none; }
table.ledger tbody tr:hover { background: var(--accent-soft); }

.amount-cell { font-family: var(--font-mono); font-weight: 600; white-space: nowrap; }
.amount-cell.profit { color: var(--profit); }
.amount-cell.expense { color: var(--expense); }

.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.badge.onetime { background: var(--accent-soft); color: var(--accent); }
.badge.recurring { background: #e4e9f3; color: #3a4d8f; }
.badge.active { background: var(--profit-soft); color: var(--profit); }
.badge.paused { background: #f1ead8; color: #8a6d2f; }
.badge.cancelled { background: var(--expense-soft); color: var(--expense); }

.due-soon { color: var(--expense); font-weight: 600; }
.due-ok { color: var(--ink-soft); }

.row-actions { display: flex; gap: 6px; white-space: nowrap; }

.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--ink-soft);
}
.empty-state .eyebrow { display: block; margin-bottom: 8px; }
.empty-state p { font-size: 14px; max-width: 380px; margin: 6px auto 18px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: var(--font-body);
    transition: transform 0.08s, opacity 0.15s, background 0.15s;
    line-height: 1;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--ink-soft); }

.btn-profit { background: var(--profit); color: white; }
.btn-profit:hover { opacity: 0.88; }

.btn-expense { background: var(--expense); color: white; }
.btn-expense:hover { opacity: 0.88; }

.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--line-soft); }

.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-danger-ghost { background: transparent; color: var(--expense); border-color: var(--expense-soft); }
.btn-danger-ghost:hover { background: var(--expense-soft); }

/* ---------- Forms ---------- */
.form-card {
    background: var(--paper-raised);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-card);
    max-width: 640px;
}

.form-row {
    margin-bottom: 18px;
}

.form-row label {
    display: block;
    font-size: 12.5px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--ink-soft);
}

.form-row .hint {
    font-size: 11.5px;
    color: var(--ink-soft);
    margin-top: 5px;
    opacity: 0.8;
}

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 560px) {
    .form-grid-2 { grid-template-columns: 1fr; }
}

input[type=text], input[type=number], input[type=date], select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--ink);
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
    border-color: var(--accent);
}

textarea { resize: vertical; min-height: 70px; }

.type-toggle {
    display: flex;
    gap: 8px;
}
.type-toggle label {
    flex: 1;
    text-align: center;
    padding: 10px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 700;
    font-size: 13px;
    color: var(--ink-soft);
    transition: all 0.15s;
}
.type-toggle input { display: none; }
.type-toggle input:checked + label.profit-label { border-color: var(--profit); background: var(--profit-soft); color: var(--profit); }
.type-toggle input:checked + label.expense-label { border-color: var(--expense); background: var(--expense-soft); color: var(--expense); }

.mode-toggle { display: flex; gap: 8px; margin-bottom: 18px; }
.mode-toggle label {
    flex: 1;
    text-align: center;
    padding: 10px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 700;
    font-size: 13px;
    color: var(--ink-soft);
}
.mode-toggle input { display: none; }
.mode-toggle input:checked + label { border-color: var(--ink); background: var(--ink); color: var(--paper); }

.conditional-fields {
    border-left: 2px solid var(--line);
    padding-left: 16px;
    margin-bottom: 18px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--line-soft);
}

/* ---------- Filter bar ---------- */
.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    align-items: center;
}
.filter-bar select, .filter-bar input[type=text] {
    width: auto;
    min-width: 140px;
    font-size: 13px;
    padding: 8px 10px;
}

/* ---------- Utility ---------- */
.text-right { text-align: right; }
.hidden { display: none !important; }
.mono { font-family: var(--font-mono); }
.muted { color: var(--ink-soft); }

/* ---------- Authentication Pages ---------- */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 60px);
    padding: 40px 20px;
    background: linear-gradient(135deg, #f5f3f0 0%, #faf8f5 100%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 48px;
    box-shadow: var(--shadow-hover);
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h1 {
    margin: 0 0 12px 0;
    font-size: 32px;
    font-family: var(--font-display);
    color: var(--ink);
    font-weight: 700;
}

.auth-header p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 14px;
    letter-spacing: 0.3px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 22px;
    margin-bottom: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 700;
    font-size: 13px;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    padding: 12px 14px;
    border: 2px solid var(--line);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--ink);
    background: var(--paper-raised);
    transition: all 0.2s;
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--accent);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201, 138, 44, 0.1);
}

.form-group small {
    font-size: 12px;
    color: var(--ink-soft);
    margin-top: -4px;
}

.auth-footer {
    text-align: center;
    padding-top: 24px;
    margin-top: 24px;
    border-top: 2px solid var(--line-soft);
}

.auth-footer p {
    margin: 0;
    font-size: 14px;
    color: var(--ink-soft);
}

.auth-footer a {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ---------- User Menu in Header ---------- */
.user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0;
    margin-left: auto;
}

.username {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    padding: 8px 12px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.08);
}

.btn-logout {
    padding: 10px 18px;
    background: var(--expense);
    color: var(--paper-raised);
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-logout:hover {
    background: #8e3524;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(168, 67, 47, 0.3);
}

/* ---------- User Management Panel ---------- */
.management-container {
    width: 100%;
}

.management-header {
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.management-header h1 {
    font-size: 32px;
    font-family: var(--font-display);
    margin: 0 0 8px 0;
    color: var(--ink);
}

.management-header p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 15px;
}

.management-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 28px;
}

@media (max-width: 1024px) {
    .management-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-header {
    padding: 24px;
    border-bottom: 2px solid var(--line-soft);
    background: linear-gradient(135deg, rgba(255,255,255,0.5), rgba(245,243,240,0.5));
}

.card-header h2 {
    margin: 0;
    font-size: 18px;
    font-family: var(--font-display);
    color: var(--ink);
    font-weight: 700;
}

.create-user-card {
    padding: 0;
}

.user-form {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.user-form button {
    margin-top: 8px;
}

.users-list {
    max-height: 600px;
    overflow-y: auto;
}

.user-item {
    padding: 18px 24px;
    border-bottom: 1px solid var(--line-soft);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

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

.user-item:hover {
    background: rgba(245, 243, 240, 0.5);
}

.user-info {
    flex: 1;
}

.user-name {
    font-weight: 700;
    color: var(--ink);
    font-size: 15px;
    margin-bottom: 4px;
}

.user-email {
    font-size: 13px;
    color: var(--ink-soft);
    margin-bottom: 6px;
    font-family: var(--font-mono);
}

.user-date {
    font-size: 12px;
    color: var(--ink-soft);
    opacity: 0.7;
}

.user-actions {
    display: flex;
    gap: 10px;
    margin-left: 16px;
}

.user-current {
    display: inline-block;
    padding: 6px 12px;
    background: var(--profit-soft);
    color: var(--profit);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-delete {
    padding: 8px 12px;
    background: var(--expense-soft);
    color: var(--expense);
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    transition: all 0.2s;
}

.btn-delete:hover {
    background: var(--expense);
    color: var(--paper-raised);
    border-color: var(--expense);
}

.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--ink-soft);
}

.empty-state p {
    margin: 0;
    font-size: 14px;
}

/* Flash Messages Enhanced */
.flash {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 14px;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.flash-success {
    background: var(--profit-soft);
    color: var(--profit);
    border: 1px solid var(--profit);
}

.flash-error {
    background: var(--expense-soft);
    color: var(--expense);
    border: 1px solid var(--expense);
}