/* ---------------------------------------------------------
   Project palette — "Indigo & Slate"
   Simple, modern, works across the whole app (Bootstrap 5
   reads these as its own custom properties, so buttons,
   links, alerts, etc. all pick it up automatically).
--------------------------------------------------------- */
:root {
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-secondary: #64748b;
    --bs-secondary-rgb: 100, 116, 139;
    --bs-success: #10b981;
    --bs-info: #0ea5e9;
    --bs-warning: #f59e0b;
    --bs-danger: #ef4444;

    --bs-body-bg: #f8fafc;
    --bs-body-color: #0f172a;
    --bs-border-color: #e2e8f0;
    --bs-link-color: var(--bs-primary);
    --bs-link-hover-color: #4338ca;

    --bs-body-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --app-muted: #64748b;
    --app-surface: #ffffff;
    --app-accent-soft: #eef2ff;

    /* Extra accent colors for expense categories, beyond Bootstrap's semantic set */
    --category-entertainment: #8b5cf6;
    --category-travel: #14b8a6;
}

body {
    background-color: var(--bs-body-bg);
}

.btn-primary {
    --bs-btn-bg: var(--bs-primary);
    --bs-btn-border-color: var(--bs-primary);
    --bs-btn-hover-bg: #4338ca;
    --bs-btn-hover-border-color: #4338ca;
    --bs-btn-active-bg: #4338ca;
    --bs-btn-active-border-color: #4338ca;
}

.card {
    --bs-card-border-color: var(--bs-border-color);
}

/* ---------------- Dashboard ---------------- */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--bs-border-color);
}

.app-header h1 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.app-header p {
    color: var(--app-muted);
    margin-bottom: 0;
}

.tool-card {
    background: var(--app-surface);
    border: 1px solid var(--bs-border-color);
    border-radius: 0.75rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -10px rgba(15, 23, 42, 0.15);
    border-color: var(--bs-primary);
}

.tool-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.625rem;
    background: var(--app-accent-soft);
    color: var(--bs-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.tool-card .card-title {
    font-weight: 600;
    color: var(--bs-body-color);
}

.tool-card .card-text {
    color: var(--app-muted);
    font-size: 0.9rem;
}

.tool-card-arrow {
    color: var(--app-muted);
    transition: transform 0.15s ease, color 0.15s ease;
}

.tool-card:hover .tool-card-arrow {
    color: var(--bs-primary);
    transform: translateX(3px);
}

.dashboard-tabs .nav-link {
    color: var(--app-muted);
    font-weight: 600;
    border-radius: 999px;
    padding: 0.5rem 1.25rem;
}

.dashboard-tabs .nav-link:hover:not(.active) {
    color: var(--bs-primary);
}

.dashboard-tabs .nav-link.active {
    background-color: var(--bs-primary);
    color: #fff;
}

/* ---------------- Tool app sidebar (off-canvas) ---------------- */
.app-sidebar {
    background: var(--app-surface);
    border-right: 1px solid var(--bs-border-color);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 220px;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 1045;
}

.app-sidebar.open {
    transform: translateX(0);
}

.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    right: auto;
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.5rem;
    background: var(--app-surface);
    color: var(--bs-body-color);
    font-size: 1.1rem;
    line-height: 1;
    z-index: 1046;
    transition: left 0.25s ease, right 0.25s ease;
}

.sidebar-toggle:hover {
    color: var(--bs-primary);
    border-color: var(--bs-primary);
}

.sidebar-toggle.open {
    left: calc(220px - 2.5rem - 1rem);
}

.sidebar-toggle-icon-close {
    display: none;
}

.sidebar-toggle.open .sidebar-toggle-icon-open {
    display: none;
}

.sidebar-toggle.open .sidebar-toggle-icon-close {
    display: inline;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 1040;
}

.sidebar-backdrop.show {
    display: block;
}

@media (max-width: 767.98px) {
    .app-sidebar {
        width: 100vw;
    }

    .sidebar-toggle.open {
        left: auto;
        right: 1rem;
    }
}

.app-sidebar .nav-pills .nav-link {
    /*color: var(--bs-body-color);*/
    color: white
    border-radius: 0.5rem;
    font-weight: 500;
}

.app-sidebar .nav-pills .nav-link.active {
    background-color: var(--bs-primary);
}

.app-sidebar .back-link {
    color: var(--app-muted);
    font-weight: 500;
}

.app-sidebar .back-link:hover {
    color: var(--bs-primary);
}

/* ---------------- Person avatar (money split lists) ---------------- */
.person-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: var(--app-accent-soft);
    color: var(--bs-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.group-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: var(--app-accent-soft);
    color: var(--bs-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.person-avatar-sm {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.65rem;
}

/* ---------------- Expense cards (money split) ---------------- */
.expense-card {
    padding: 1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.75rem;
    background: var(--app-surface);
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.expense-card:hover {
    border-color: var(--bs-primary);
    box-shadow: 0 4px 12px -4px rgba(15, 23, 42, 0.15);
}

/* ---------------- Expense category colors ---------------- */
.category-food {
    background: color-mix(in srgb, var(--bs-warning) 18%, white);
    color: var(--bs-warning);
}

.category-health {
    background: color-mix(in srgb, var(--bs-danger) 18%, white);
    color: var(--bs-danger);
}

.category-transport {
    background: color-mix(in srgb, var(--bs-info) 18%, white);
    color: var(--bs-info);
}

.category-entertainment {
    background: color-mix(in srgb, var(--category-entertainment) 18%, white);
    color: var(--category-entertainment);
}

.category-shopping {
    background: color-mix(in srgb, var(--bs-success) 18%, white);
    color: var(--bs-success);
}

.category-utilities {
    background: color-mix(in srgb, var(--bs-secondary) 18%, white);
    color: var(--bs-secondary);
}

.category-travel {
    background: color-mix(in srgb, var(--category-travel) 18%, white);
    color: var(--category-travel);
}

.category-other {
    background: var(--app-accent-soft);
    color: var(--bs-primary);
}