/* ==========================================================================
   Splitwhy - Ledger Brutalist CSS Stylesheet
   Theme: Strict Grayscale (Black/White/Gray) with Neon Green/Red Accent Glows
   Layout: Mobile-First Structured Grid (Dashed Dividers, Skewed Ledger Rows)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System & Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - strictly monochromatic dark with zero light blues */
    --bg-main: #060608;
    --bg-surface: transparent;
    --bg-surface-opaque: #0f0f12;
    --border-color: rgba(255, 255, 255, 0.12);
    --border-hover: rgba(255, 255, 255, 0.3);
    
    /* Monochromatic White Highlight */
    --primary: #ffffff;
    --primary-hover: #e2e8f0;
    --primary-glow: rgba(255, 255, 255, 0.1);
    
    --accent: #ffffff;
    --accent-hover: #e2e8f0;
    
    /* Neon Green for positive balances / credits */
    --success: #39ff14;
    --success-bg: rgba(57, 255, 20, 0.04);
    --success-border: rgba(57, 255, 20, 0.25);
    --success-glow: rgba(57, 255, 20, 0.3);
    
    /* Neon Pink/Crimson for negative balances / debts */
    --danger: #ff0055;
    --danger-bg: rgba(255, 0, 85, 0.04);
    --danger-border: rgba(255, 0, 85, 0.25);
    --danger-glow: rgba(255, 0, 85, 0.3);
    
    --warning: #ffaa00;
    
    /* Grayscale Text */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #4a5568;
    
    /* Layout Tokens - COMPLETELY SHARP (ECKIG) */
    --radius-sm: 0px;
    --radius-md: 0px;
    --radius-lg: 0px;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', var(--font-sans);
    
    --shadow-soft: none;
    --shadow-glow: none;
    
    --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. Global Reset & Layout
   -------------------------------------------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.005) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.005) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 0 16px;
    max-width: 1200px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   3. Typography & Headings
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.01em;
}

.gradient-text {
    color: #ffffff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.app-header {
    padding: 24px 0;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

/* Skewed logo icon box */
.logo-icon {
    background: #ffffff;
    width: 42px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000000;
    transform: skewX(-12deg);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
}

.logo-icon svg, .logo-icon i {
    transform: skewX(12deg);
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.brand-name span {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
}

/* Skewed Privacy Badge */
.privacy-badge {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 6px;
    transform: skewX(-10deg);
}

.privacy-badge > * {
    transform: skewX(10deg);
}

.privacy-badge svg {
    width: 14px;
    height: 14px;
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   5. Buttons & Controls (Parallelograms)
   -------------------------------------------------------------------------- */
.btn-primary, .btn-secondary, .btn-accent {
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 12px 28px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-smooth);
    font-size: 13px;
    transform: skewX(-10deg);
    position: relative;
}

/* Anti-skew to straighten content */
.btn-primary > *, .btn-secondary > *, .btn-accent > *,
.btn-primary svg, .btn-secondary svg, .btn-accent svg,
.btn-primary i, .btn-secondary i, .btn-accent i {
    transform: skewX(10deg);
    display: inline-block;
}

.btn-primary {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
}

.btn-primary:hover {
    background: transparent;
    border-color: #ffffff;
    color: #ffffff;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #ffffff;
}

.btn-accent {
    background: transparent;
    border: 1px solid #ffffff;
    color: #ffffff;
}

.btn-accent:hover {
    background: #ffffff;
    color: #000000;
}

/* Icon Buttons - skewed for consistency */
.btn-icon, .btn-icon-sm {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transform: skewX(-10deg);
    transition: var(--transition-smooth);
}

.btn-icon > *, .btn-icon-sm > * {
    transform: skewX(10deg);
}

.btn-icon:hover, .btn-icon-sm:hover {
    border-color: #ffffff;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.btn-icon {
    width: 44px;
    height: 44px;
}

.btn-icon-sm {
    width: 32px;
    height: 32px;
}

.btn-icon-sm svg, .btn-icon-sm i {
    width: 14px;
    height: 14px;
}

.btn-small {
    padding: 8px 18px;
    font-size: 11px;
}

.btn-full-width {
    width: 100%;
}

.btn-icon-only {
    width: 44px;
    height: 44px;
    padding: 0;
}

.text-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition-smooth);
}

.text-btn:hover {
    color: var(--text-primary);
    text-decoration: line-through;
}

/* --------------------------------------------------------------------------
   6. Ledger Sections (No Box Outlines)
   -------------------------------------------------------------------------- */
.glass-card {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 16px 0;
    box-shadow: none;
    position: relative;
    transition: var(--transition-smooth);
}

/* Horizontal division line between cards in the column */
.balances-card {
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    padding-bottom: 32px;
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 2px solid #ffffff; /* THICK LEADING BOTTOM LINE */
    padding-bottom: 8px;
    transform: skewX(-6deg);
}

.card-header > * {
    transform: skewX(6deg);
}

.card-header h2 {
    font-size: 18px;
    letter-spacing: 0.05em;
}

.card-icon {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: skewX(-8deg);
    border: 1px solid var(--border-color);
}

.card-icon > * {
    transform: skewX(8deg);
    width: 16px;
    height: 16px;
}

.card-description {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 20px;
}

/* --------------------------------------------------------------------------
   7. Form Inputs & Groups (Skewed Inputs)
   -------------------------------------------------------------------------- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group-row {
    display: flex;
    gap: 16px;
}

.flex-1 {
    flex: 1;
}

label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

input[type="text"], input[type="number"], input[type="password"], select {
    background: #09090b;
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 14px 16px;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--text-primary);
    transform: skewX(-6deg); /* SKEWED FORM INPUTS */
    transition: var(--transition-smooth);
    width: 100%;
}

input[type="text"]:focus, input[type="number"]:focus, input[type="password"]:focus, select:focus {
    outline: none;
    border-color: #ffffff;
    background: #0c0c0f;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.1);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23a0aec0' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
}

select option {
    background-color: #121216;
    color: var(--text-primary);
}

.inline-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.form-note {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
}

/* --------------------------------------------------------------------------
   8. Landing Page Styles (Divider-based layout)
   -------------------------------------------------------------------------- */
.landing-hero {
    text-align: center;
    padding: 40px 0 28px;
}

.hero-title {
    font-size: 38px;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
}

.landing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 48px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    padding-bottom: 48px;
}

.member-input-row {
    position: relative;
    margin-bottom: 12px;
}

.members-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.features-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0 48px;
}

.feature-item {
    text-align: center;
    padding: 16px;
}

.feature-icon {
    color: #ffffff;
    margin-bottom: 12px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* Recent groups ledger list style (slanted items) */
.recent-groups-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 4px 12px;
}

.recent-group-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 16px;
    text-decoration: none;
    color: var(--text-primary);
    transform: skewX(-8deg); /* BRING BACK ROW SKEW */
    transition: var(--transition-smooth);
}

.recent-group-item > * {
    transform: skewX(8deg);
}

.recent-group-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: #ffffff;
}

.recent-group-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.recent-group-name {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 0.02em;
}

.recent-group-date {
    font-size: 11px;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   9. Group Header & Sharing (Skewed elements)
   -------------------------------------------------------------------------- */
.group-header-section {
    margin-bottom: 32px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    padding-bottom: 24px;
}

.breadcrumbs {
    margin-bottom: 12px;
}

.breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition-smooth);
    transform: skewX(-10deg);
    border: 1px solid var(--border-color);
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.02);
}

.breadcrumbs a > * {
    transform: skewX(10deg);
}

.breadcrumbs a:hover {
    color: #ffffff;
    border-color: #ffffff;
}

.breadcrumbs svg {
    width: 14px;
    height: 14px;
}

.group-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.group-title-row h1 {
    font-size: 32px;
    letter-spacing: -0.02em;
}

/* Share link section styling (Skewed share box) */
.share-box-glass {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transform: skewX(-6deg);
    transition: var(--transition-smooth);
}

.share-box-glass > * {
    transform: skewX(6deg);
}

.share-box-glass:hover {
    border-color: #ffffff;
}

.share-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    overflow: hidden;
}

.share-info svg {
    color: #ffffff;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.share-label {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    white-space: nowrap;
}

#share-link-input {
    background: none;
    border: none;
    color: #ffffff;
    font-family: monospace;
    font-size: 13px;
    font-weight: 600;
    padding: 0;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    cursor: default;
}

#share-link-input:focus {
    box-shadow: none;
    background: none;
}

/* Layout Columns */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

.dashboard-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Header inside card layout */
.header-with-action {
    justify-content: space-between;
    margin-bottom: 24px;
    align-items: center;
}

.card-header-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* --------------------------------------------------------------------------
   10. Balance & Settlement Lists (Skewed ledger rows)
   -------------------------------------------------------------------------- */
.balances-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 4px 12px;
}

.balance-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0;
    transform: skewX(-8deg); /* RESTORE SKEW */
}

.balance-item > * {
    transform: skewX(8deg);
}

.balance-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: #ffffff;
}

.balance-member-name {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.02em;
}

.balance-val {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 15px;
}

/* Positive balance - Lime green glow */
.balance-positive {
    background: var(--success-bg);
    border-color: var(--success-border);
}
.balance-positive .balance-val {
    color: var(--success);
    text-shadow: 0 0 10px var(--success-glow);
}

/* Negative balance - Pink/red glow */
.balance-negative {
    background: var(--danger-bg);
    border-color: var(--danger-border);
}
.balance-negative .balance-val {
    color: var(--danger);
    text-shadow: 0 0 10px var(--danger-glow);
}

/* Settlements list */
.settlements-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 4px 12px;
}

.settlement-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: skewX(-8deg); /* RESTORE SKEW */
}

.settlement-item > * {
    transform: skewX(8deg);
}

.settlement-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: #ffffff;
}

.settlement-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.debtor-name, .creditor-name {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.debtor-name {
    color: var(--danger);
    text-shadow: 0 0 8px rgba(255, 0, 85, 0.15);
}

.creditor-name {
    color: var(--success);
    text-shadow: 0 0 8px rgba(57, 255, 20, 0.15);
}

.arrow-icon {
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.settlement-amount {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 15px;
    color: var(--text-primary);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 32px 0;
    color: var(--text-secondary);
}

.empty-state svg {
    color: var(--text-muted);
    margin-bottom: 8px;
    width: 24px;
    height: 24px;
}

.empty-state p {
    font-size: 13px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   11. Expense List (Skewed entries)
   -------------------------------------------------------------------------- */
.expenses-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 500px;
    overflow-y: auto;
    padding: 4px 12px;
}

.expense-item-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transform: skewX(-6deg); /* RESTORE SKEW */
    transition: var(--transition-smooth);
}

.expense-item-card > * {
    transform: skewX(6deg);
}

.expense-item-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: #ffffff;
}

.expense-item-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.expense-info-main h3 {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 2px;
}

.expense-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Skewed Badge helper */
.expense-payer-badge {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    color: #ffffff;
    padding: 1px 8px;
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    display: inline-block;
    transform: skewX(-10deg);
}

.expense-payer-badge span {
    transform: skewX(10deg);
    display: inline-block;
}

.expense-amount-side {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
}

.expense-amount-val {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}

.expense-splits-details {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 8px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

/* Skewed split tags */
.split-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    transform: skewX(-10deg);
    display: inline-block;
}

.split-tag span {
    transform: skewX(10deg);
    display: inline-block;
}

/* --------------------------------------------------------------------------
   12. Interactive SVG Debt-Flow Visualizer Styling
   -------------------------------------------------------------------------- */
.visualizer-card {
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    padding-bottom: 32px;
    margin-bottom: 32px;
}

.svg-wrapper {
    background: transparent;
    border: 1px dashed rgba(255, 255, 255, 0.15);
    padding: 16px;
    overflow-x: auto;
    display: flex;
    justify-content: center;
}

#debt-flow-svg {
    max-width: 600px;
    display: block;
}

.svg-polygon-debtor {
    fill: var(--danger-bg);
    stroke: var(--danger);
    stroke-width: 1.5;
}

.svg-polygon-creditor {
    fill: var(--success-bg);
    stroke: var(--success);
    stroke-width: 1.5;
}

.svg-node-text {
    fill: #ffffff;
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-sans);
    text-anchor: middle;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.svg-flow-path {
    fill: none;
    stroke: #333d4e;
    stroke-width: 2;
    stroke-dasharray: 6, 4;
    animation: flowDash 20s linear infinite;
}

.svg-flow-path-glow {
    fill: none;
    stroke: rgba(255, 255, 255, 0.03);
    stroke-width: 5;
}

@keyframes flowDash {
    to {
        stroke-dashoffset: -200;
    }
}

.svg-label-polygon {
    fill: #060608;
    stroke: var(--border-color);
    stroke-width: 1;
}

.svg-label-text {
    fill: #ffffff;
    font-size: 10px;
    font-weight: 800;
    font-family: var(--font-display);
    text-anchor: middle;
}

/* --------------------------------------------------------------------------
   13. System Administration Styles
   -------------------------------------------------------------------------- */
.admin-container {
    margin-bottom: 48px;
}

.admin-login-wrapper {
    display: flex;
    justify-content: center;
    padding: 60px 0;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-surface-opaque);
    border: 2px solid var(--border-color);
    padding: 32px;
}

.admin-error-badge {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: var(--danger);
    padding: 10px 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    transform: skewX(-8deg);
}

.admin-error-badge > * {
    transform: skewX(8deg);
}

.admin-warning-alert {
    background: rgba(255, 170, 0, 0.05);
    border: 1px solid rgba(255, 170, 0, 0.2);
    color: var(--warning);
    padding: 16px;
    margin-bottom: 32px;
    display: flex;
    gap: 12px;
    transform: skewX(-4deg);
}

.admin-warning-alert > * {
    transform: skewX(4deg);
}

.admin-warning-alert svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.admin-groups-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 4px 12px;
}

.admin-group-row-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 18px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transform: skewX(-8deg); /* Skew for admin list row */
    transition: var(--transition-smooth);
}

.admin-group-row-item > * {
    transform: skewX(8deg);
}

.admin-group-row-item:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: #ffffff;
}

.admin-group-main-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.admin-group-title-line {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.admin-group-name {
    font-weight: 800;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.admin-group-uuid {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-muted);
}

.admin-group-meta-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.admin-meta-tag {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    transform: skewX(-6deg);
    display: inline-block;
}

.admin-meta-tag > * {
    transform: skewX(6deg);
    display: inline-block;
}

.admin-group-actions {
    display: flex;
    gap: 12px;
}

.admin-delete-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* --------------------------------------------------------------------------
   14. Modals (Dialog Overlays)
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-out;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    width: 100%;
    max-width: 500px;
    transform: scale(0.95);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    background: #0d0d10;
    border: 2px solid var(--border-color);
    padding: 24px;
}

.modal-overlay.active .modal-card {
    transform: scale(1);
    border-color: #ffffff;
}

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

.modal-header h2 {
    font-size: 18px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    color: var(--danger);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

/* Custom Checkbox List in Modal (Grayscale border-based lines) */
.checkbox-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-height: 180px;
    overflow-y: auto;
    padding: 6px;
    border: 1px solid var(--border-color);
    background: #09090b;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.checkbox-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: #ffffff;
}

.checkbox-item input[type="checkbox"] {
    accent-color: #ffffff;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.split-selection-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 11px;
    color: var(--text-muted);
}

.split-selection-header .divider {
    color: rgba(255, 255, 255, 0.05);
}

/* Members management list in Modal */
.members-management-section {
    margin-top: 16px;
}

.members-management-section h3 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.members-manage-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 180px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    padding: 6px;
    background: #09090b;
}

.member-manage-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
}

.btn-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-delete:hover {
    color: var(--danger);
}

.btn-delete svg {
    width: 16px;
    height: 16px;
}

.btn-edit {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-edit:hover {
    color: #ffffff;
}

.btn-edit svg {
    width: 16px;
    height: 16px;
}

.expense-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* --------------------------------------------------------------------------
   15. Mobile Bottom UI / FAB Elements (Skewed shape)
   -------------------------------------------------------------------------- */
.mobile-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #ffffff;
    color: #000000;
    border: none;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 16px rgba(255, 255, 255, 0.15);
    cursor: pointer;
    z-index: 900;
    transform: skewX(-10deg);
    transition: var(--transition-smooth);
}

.mobile-fab > * {
    transform: skewX(10deg);
}

.mobile-fab:hover {
    background: #ffffff;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.mobile-fab svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

/* --------------------------------------------------------------------------
   16. Footer Styling
   -------------------------------------------------------------------------- */
.app-footer {
    margin-top: auto;
    padding: 32px 0 24px;
    border-top: 2px solid var(--border-color);
    text-align: center;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.made-with {
    font-size: 10px;
    color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   17. Custom Scrollbars
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
    background: #ffffff;
}

/* --------------------------------------------------------------------------
   18. Responsive Layout Media Queries (Ledger Separation Grid)
   -------------------------------------------------------------------------- */

/* Medium Devices (Tablets, 768px and up) */
@media (min-width: 768px) {
    .app-container {
        padding: 0 24px;
    }
    
    .hero-title {
        font-size: 54px;
    }
    
    /* Separator grid layout on landing page */
    .landing-grid {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 0;
    }
    .create-card {
        padding-right: 48px;
        border-right: 1px dashed rgba(255, 255, 255, 0.15);
    }
    .recent-card {
        padding-left: 48px;
    }
    
    .features-section {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }
    
    .share-box-glass {
        flex-direction: row;
        align-items: center;
        padding: 8px 14px;
    }
    
    /* Separator grid layout on group view */
    .dashboard-grid {
        grid-template-columns: 0.95fr 1.05fr;
        gap: 0;
    }
    
    .dashboard-column:first-child {
        padding-right: 40px;
        border-right: 1px dashed rgba(255, 255, 255, 0.15);
    }
    
    .dashboard-column:last-child {
        padding-left: 40px;
    }
    
    /* Admin row layout override */
    .admin-group-row-item {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .admin-group-actions {
        justify-content: flex-end;
    }
    
    .mobile-fab {
        display: none;
    }
}

/* Large Devices (Desktops, 1024px and up) */
@media (min-width: 1024px) {
    .app-header {
        padding: 32px 0;
    }
    
    .landing-grid {
        grid-template-columns: 1.15fr 0.85fr;
    }
    
    .create-card {
        padding-right: 64px;
    }
    
    .recent-card {
        padding-left: 64px;
    }
    
    .dashboard-grid {
        grid-template-columns: 0.9fr 1.1fr;
    }
    
    .dashboard-column:first-child {
        padding-right: 48px;
    }
    
    .dashboard-column:last-child {
        padding-left: 48px;
    }
}

/* --------------------------------------------------------------------------
   19. Budget Tracker Styles (Ledger-compatible & skewed)
   -------------------------------------------------------------------------- */
.budget-section-bar {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    padding: 14px 16px;
    transform: skewX(-6deg);
    transition: var(--transition-smooth);
    margin-bottom: 24px;
}

.budget-section-bar > * {
    transform: skewX(6deg);
}

.budget-text-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.budget-info-left {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.budget-title {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.budget-val-spent {
    font-weight: 800;
}

.budget-val-limit {
    font-weight: 800;
    color: var(--text-secondary);
}

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

.budget-info-right {
    display: flex;
    align-items: center;
}

.budget-val-remaining {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* Glowing progress bar */
.budget-bar-track {
    background: #09090b;
    border: 1px solid var(--border-color);
    height: 8px;
    position: relative;
    width: 100%;
}

.budget-bar-fill {
    background: #ffffff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

/* Budget Exceeded State (danger style) */
.budget-exceeded {
    border-color: var(--danger-border);
    background: var(--danger-bg);
}

.budget-exceeded .budget-val-spent {
    color: var(--danger);
    text-shadow: 0 0 10px var(--danger-glow);
}

.budget-exceeded .budget-val-remaining {
    color: var(--danger);
    text-shadow: 0 0 10px var(--danger-glow);
}

.budget-exceeded .budget-bar-fill {
    background: var(--danger);
    box-shadow: 0 0 10px var(--danger-glow);
}

/* Empty State Budget row styling */
.budget-empty-link-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    padding: 8px 12px;
    transform: skewX(-6deg);
    border: 1px dashed var(--border-color);
    transition: var(--transition-smooth);
    background: transparent;
    width: fit-content;
}

.budget-empty-link-row > * {
    transform: skewX(6deg);
}

.budget-empty-link-row:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.01);
}

/* --------------------------------------------------------------------------
   20. UI Adjustments (Header Actions, Smaller Budget Icon, Settle button)
   -------------------------------------------------------------------------- */

.group-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Settle Up Button */
.btn-settle {
    background: transparent;
    border: 1px solid var(--success-border);
    color: var(--success);
    padding: 6px 10px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transform: skewX(-10deg);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border-radius: 0;
}

.btn-settle:hover {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
    box-shadow: 0 0 10px var(--success-glow);
}

.btn-settle > * {
    transform: skewX(10deg);
}

.btn-settle span {
    display: none; /* Hide text on small screens */
}

.btn-settle i {
    width: 13px;
    height: 13px;
}

@media (min-width: 576px) {
    .btn-settle {
        padding: 6px 12px;
    }
    .btn-settle span {
        display: inline; /* Show text on larger screens */
    }
}