:root {
    --ink: #17211f;
    --muted: #66736f;
    --line: #dfe7e2;
    --paper: #ffffff;
    --surface: #f6faf8;
    --green: #0f766e;
    --green-2: #14b8a6;
    --red: #dc2626;
    --amber: #ca8a04;
    --blue: #2563eb;
    --violet: #7c3aed;
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--surface);
    color: var(--ink);
    letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
.app-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 100vh; transition: grid-template-columns .2s ease; }
.app-shell.sidebar-collapsed { grid-template-columns: 84px minmax(0, 1fr); }
.sidebar { background: #102623; color: #f4fffc; padding: 22px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.2rem; min-width: 0; }
.brand-mark, .nav-icon, .button-icon, .stat-icon { display: inline-grid; place-items: center; border-radius: 8px; font-weight: 800; }
.brand-mark { width: 40px; height: 40px; background: #2dd4bf; color: #09231f; flex: 0 0 40px; }
.sidebar-label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-toggle { width: 36px; height: 36px; display: inline-grid; place-items: center; border: 1px solid rgba(255, 255, 255, .18); border-radius: 8px; background: rgba(255, 255, 255, .1); color: #f4fffc; cursor: pointer; flex: 0 0 36px; }
.sidebar-toggle:hover { background: rgba(255, 255, 255, .16); }
.sidebar-toggle-icon { display: inline-block; font-size: 1.5rem; line-height: 1; transform: translateY(-1px); transition: transform .2s ease; }
.app-shell.sidebar-collapsed .sidebar { padding-inline: 14px; }
.app-shell.sidebar-collapsed .sidebar-label { display: none; }
.app-shell.sidebar-collapsed .brand, .app-shell.sidebar-collapsed .nav a, .app-shell.sidebar-collapsed .logout-button { justify-content: center; }
.app-shell.sidebar-collapsed .sidebar-toggle-icon { transform: rotate(180deg) translateY(1px); }
.nav { display: grid; gap: 8px; }
.nav a, .logout-button { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 8px; border: 1px solid transparent; color: #e9fffb; background: transparent; width: 100%; cursor: pointer; min-height: 52px; }
.nav a.active, .nav a:hover, .logout-button:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .18); }
.nav-icon { width: 28px; height: 28px; background: rgba(255, 255, 255, .14); flex: 0 0 28px; }
.main { min-width: 0; padding: 28px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 24px; }
.page-title h1 { margin: 0 0 6px; font-size: clamp(1.7rem, 3vw, 2.6rem); line-height: 1.05; }
.page-title p { margin: 0; color: var(--muted); }
.quick-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { border: 0; border-radius: 8px; padding: 10px 14px; display: inline-flex; align-items: center; gap: 8px; background: var(--green); color: white; font-weight: 750; cursor: pointer; min-height: 42px; }
.btn.secondary { background: #17211f; }
.btn.light { background: white; color: var(--ink); border: 1px solid var(--line); }
.btn.warning { background: var(--amber); }
.btn.danger { background: var(--red); }
.button-icon { width: 22px; height: 22px; background: rgba(255, 255, 255, .18); }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 18px; box-shadow: 0 18px 40px rgba(23, 33, 31, .06); }
.stat { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.stat small, .muted { color: var(--muted); }
.stat strong { display: block; font-size: clamp(1.3rem, 2.8vw, 2.1rem); margin-top: 8px; word-break: break-word; }
.stat-icon { width: 42px; height: 42px; background: #dff7f2; color: #0f766e; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: .85rem; text-transform: uppercase; }
.badge { display: inline-flex; align-items: center; border-radius: 8px; padding: 4px 8px; background: #e7f7f3; color: #0f766e; font-weight: 750; font-size: .82rem; }
.badge.red { background: #fee2e2; color: #b91c1c; }
.badge.amber { background: #fef3c7; color: #92400e; }
.badge.dark { background: #e5e7eb; color: #17211f; }
form.stack, .stack { display: grid; gap: 14px; }
.form-grid { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
label { display: grid; gap: 7px; font-weight: 750; color: #263530; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 11px 12px; background: white; color: var(--ink); min-width: 0; }
textarea { min-height: 92px; resize: vertical; }
.help { font-size: .88rem; color: var(--muted); }
.alert { border-radius: 8px; padding: 12px 14px; margin-bottom: 16px; border: 1px solid #badfd8; background: #e6f8f4; color: #0f4f49; }
.alert.error { border-color: #fecaca; background: #fff1f2; color: #991b1b; }
.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.tab-button { background: white; color: var(--ink); border: 1px solid var(--line); }
.progress { height: 10px; border-radius: 8px; background: #e8eee9; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--green); width: min(var(--value), 100%); }
.chart-row { display: grid; grid-template-columns: 120px minmax(0, 1fr) 95px; align-items: center; gap: 12px; margin: 10px 0; }
.bar { min-height: 12px; border-radius: 8px; background: #e8eee9; overflow: hidden; }
.bar span { display: block; min-height: 12px; border-radius: 8px; background: var(--green-2); width: min(var(--value), 100%); }
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 28px; background: linear-gradient(135deg, #f6faf8 0%, #e9f7f3 50%, #fff7ed 100%); }
.auth-card { width: min(960px, 100%); display: grid; grid-template-columns: 1fr 1.1fr; background: white; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; box-shadow: 0 22px 50px rgba(23, 33, 31, .12); }
.auth-intro { background: #102623; color: white; padding: 34px; display: grid; align-content: center; gap: 18px; }
.auth-intro h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1; }
.auth-form { padding: 34px; }
.mobile-menu { display: none; }
@media (max-width: 980px) {
    .app-shell, .app-shell.sidebar-collapsed { grid-template-columns: 1fr; }
    .sidebar { position: relative; height: auto; }
    .sidebar-head { margin-bottom: 14px; }
    .app-shell.sidebar-collapsed .sidebar { padding-inline: 22px; }
    .app-shell.sidebar-collapsed .brand { justify-content: flex-start; }
    .app-shell.sidebar-collapsed .nav { display: none; }
    .app-shell.sidebar-collapsed .sidebar-label { display: inline; }
    .main { padding: 20px; }
    .grid.cols-4, .grid.cols-3, .grid.cols-2, .form-grid, .auth-card { grid-template-columns: 1fr; }
    .topbar { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 520px) {
    .main, .auth-page { padding: 14px; }
    .sidebar { padding: 16px; }
    .card, .auth-form, .auth-intro { padding: 16px; }
    th, td { padding: 10px 8px; }
    .chart-row { grid-template-columns: 1fr; }
}



.subcategory-icon { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 8px; background: #f7faf8; font-size: 1.25rem; }
.icon-select { min-width: 180px; }
.compact-icon-select { min-width: 150px; }
.inline-icon-form { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.inline-icon-form input { width: 96px; }
.inline-icon-form .btn { min-height: 38px; padding: 8px 10px; }
@media (max-width: 720px) {
    .inline-icon-form { align-items: stretch; }
    .inline-icon-form input, .inline-icon-form select, .inline-icon-form .btn { width: 100%; }
}


.entry-table input, .entry-table select { min-width: 120px; padding: 8px 9px; }
.entry-table .icon-select { min-width: 150px; margin-top: 6px; }
.entry-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.entry-actions .btn { min-height: 38px; padding: 8px 10px; }
@media (max-width: 720px) {
    .entry-actions { align-items: stretch; }
    .entry-actions .btn { width: 100%; justify-content: center; }
}


.transaction-edit-row td { background: #fbfffd; }
.transaction-edit-form { padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.wide-field { grid-column: 1 / -1; }
@media (max-width: 720px) {
    .transaction-edit-form .form-grid { grid-template-columns: 1fr; }
}


.choice-select-hidden { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.icon-choice-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.compact-choice-grid { gap: 7px; }
.icon-choice { --choice-color: #0f766e; display: inline-flex; align-items: center; gap: 7px; min-height: 40px; border: 1px solid var(--line); border-radius: 8px; background: white; color: var(--ink); padding: 8px 10px; cursor: pointer; font-weight: 800; }
.icon-choice span { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 8px; background: color-mix(in srgb, var(--choice-color) 12%, white); color: var(--choice-color); }
.icon-choice:hover, .icon-choice.active { border-color: var(--choice-color); background: color-mix(in srgb, var(--choice-color) 10%, white); box-shadow: inset 0 0 0 1px var(--choice-color); }
.icon-choice.muted-choice { --choice-color: #6C757D; }


.transaction-live-status { margin: 0 0 16px; border: 1px solid #badfd8; background: #e6f8f4; color: #0f4f49; border-radius: 8px; padding: 11px 13px; font-weight: 850; }
.transaction-live-status.error { border-color: #fecaca; background: #fff1f2; color: #991b1b; }
.transaction-flash-ok { animation: transactionSavedFlash .85s ease; }
.transaction-flash-error { animation: transactionErrorFlash .85s ease; }
@keyframes transactionSavedFlash {
    0% { background: #d1fae5; box-shadow: 0 0 0 3px rgba(20, 184, 166, .26); }
    100% { background: transparent; box-shadow: none; }
}
@keyframes transactionErrorFlash {
    0% { background: #fee2e2; box-shadow: 0 0 0 3px rgba(220, 38, 38, .22); }
    100% { background: transparent; box-shadow: none; }
}


/* Mobile-first layout layer */
body { -webkit-text-size-adjust: 100%; }
.app-shell {
    display: grid;
    grid-template-columns: 68px minmax(0, 1fr);
    min-height: 100vh;
    transition: grid-template-columns .2s ease;
}
.app-shell.sidebar-collapsed { grid-template-columns: 68px minmax(0, 1fr); }
.sidebar {
    position: sticky;
    top: 0;
    z-index: 20;
    height: 100vh;
    padding: 12px 10px;
    overflow-x: hidden;
    overflow-y: auto;
    transition: padding .2s ease;
}
.app-shell:not(.sidebar-collapsed) .sidebar {
    width: min(236px, calc(100vw - 24px));
    box-shadow: 16px 0 34px rgba(23, 33, 31, .2);
}
.sidebar-head { margin-bottom: 10px; }
.brand { font-size: 1rem; }
.brand-mark { width: 36px; height: 36px; flex-basis: 36px; }
.sidebar-toggle { display: inline-grid; width: 34px; height: 34px; flex: 0 0 34px; }
.app-shell.sidebar-collapsed .sidebar { padding-inline: 10px; }
.app-shell.sidebar-collapsed .sidebar-label { display: none; }
.app-shell.sidebar-collapsed .brand, .app-shell.sidebar-collapsed .nav a, .app-shell.sidebar-collapsed .logout-button { justify-content: center; }
.nav {
    display: grid;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
}
.nav a, .logout-button {
    min-height: 44px;
    padding: 9px 10px;
    white-space: normal;
    width: 100%;
}
.app-shell.sidebar-collapsed .nav a, .app-shell.sidebar-collapsed .logout-button { padding-inline: 8px; }
.nav form { width: 100%; }
.nav-icon { width: 26px; height: 26px; flex-basis: 26px; }
.main { padding: 14px; }
.topbar { display: grid; gap: 12px; align-items: start; margin-bottom: 16px; }
.page-title h1 { font-size: clamp(1.55rem, 7vw, 2.05rem); }
.quick-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; width: 100%; }
.quick-actions .btn { justify-content: center; }
.btn { min-height: 46px; padding: 11px 13px; justify-content: center; }
.tabs { display: flex; flex-wrap: nowrap; overflow-x: auto; gap: 8px; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
.tabs .btn { flex: 0 0 auto; }
.grid, .grid.cols-2, .grid.cols-3, .grid.cols-4, .form-grid, .auth-card { grid-template-columns: 1fr; gap: 12px; }
.card { padding: 14px; box-shadow: 0 10px 26px rgba(23, 33, 31, .05); }
.stat { align-items: center; }
.stat-icon { width: 38px; height: 38px; flex: 0 0 38px; }
input, select, textarea { min-height: 46px; font-size: 16px; }
textarea { min-height: 86px; }
.icon-choice { min-height: 44px; }
.icon-choice-grid { gap: 7px; }
.chart-row { grid-template-columns: 1fr; gap: 6px; padding: 8px 0; }
.table-wrap { margin-inline: -6px; padding-inline: 6px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { min-width: 720px; }
.entry-table { min-width: 920px; }
th, td { padding: 10px 8px; }
.auth-page { padding: 14px; align-items: start; }
.auth-card { width: 100%; }
.auth-intro, .auth-form { padding: 18px; }
.inline-icon-form, .entry-actions { align-items: stretch; }
.inline-icon-form input, .inline-icon-form select, .inline-icon-form .btn, .entry-actions .btn { width: 100%; }
.transaction-edit-form .form-grid { grid-template-columns: 1fr; }

@media (min-width: 640px) {
    .main { padding: 20px; }
    .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .quick-actions { display: flex; width: auto; }
    .chart-row { grid-template-columns: 120px minmax(0, 1fr) 95px; align-items: center; gap: 12px; }
    .inline-icon-form input { width: 96px; }
    .inline-icon-form select, .inline-icon-form .btn { width: auto; }
    .entry-actions .btn { width: auto; }
}

@media (min-width: 980px) {
    .grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .auth-card { grid-template-columns: 1fr 1.1fr; width: min(960px, 100%); }
    .auth-page { padding: 28px; align-items: center; }
    .auth-intro, .auth-form { padding: 34px; }
}

@media (min-width: 1100px) {
    .app-shell { grid-template-columns: 260px minmax(0, 1fr); }
    .app-shell.sidebar-collapsed { grid-template-columns: 84px minmax(0, 1fr); }
    .sidebar { position: sticky; top: 0; height: 100vh; width: auto; padding: 22px; overflow-y: auto; box-shadow: none; }
    .sidebar-head { margin-bottom: 24px; }
    .sidebar-toggle { display: inline-grid; }
    .app-shell.sidebar-collapsed .sidebar { padding-inline: 14px; }
    .app-shell.sidebar-collapsed .sidebar-label { display: none; }
    .app-shell.sidebar-collapsed .brand, .app-shell.sidebar-collapsed .nav a, .app-shell.sidebar-collapsed .logout-button { justify-content: center; }
    .nav { display: grid; overflow: visible; padding-bottom: 0; }
    .nav a, .logout-button { min-height: 52px; padding: 11px 12px; white-space: normal; }
    .nav form { width: 100%; }
    .main { padding: 28px; }
    .topbar { display: flex; align-items: center; margin-bottom: 24px; }
    .card { padding: 18px; box-shadow: 0 18px 40px rgba(23, 33, 31, .06); }
    table { min-width: 0; }
}

@media (max-width: 1099px) {
    body { overflow-x: hidden; }
    .app-shell,
    .app-shell.sidebar-collapsed {
        display: grid !important;
        grid-template-columns: 68px minmax(0, 1fr) !important;
        align-items: stretch;
    }
    .sidebar {
        grid-column: 1 !important;
        grid-row: 1 !important;
        position: sticky !important;
        left: 0;
        top: 0;
        width: 68px;
        min-width: 68px;
        max-width: 68px;
        height: 100vh !important;
        padding: 12px 10px !important;
        overflow-x: hidden !important;
        overflow-y: auto !important;
    }
    .app-shell:not(.sidebar-collapsed) .sidebar {
        width: min(236px, calc(100vw - 24px));
        min-width: min(236px, calc(100vw - 24px));
        max-width: min(236px, calc(100vw - 24px));
    }
    .main {
        grid-column: 2 !important;
        grid-row: 1 !important;
        min-width: 0;
    }
    .sidebar-toggle { display: inline-grid !important; }
    .nav {
        display: grid !important;
        overflow-x: hidden !important;
        overflow-y: visible !important;
        white-space: normal !important;
    }
    .nav a,
    .logout-button {
        width: 100% !important;
        flex: none !important;
        white-space: normal !important;
    }
    .app-shell.sidebar-collapsed .sidebar-label { display: none !important; }
}