/* ============================================
   BudgetIQ — Light Theme Stylesheet
   ============================================ */

:root {
    --bg-base: #f4f6fb;
    --bg-card: #ffffff;
    --bg-card-hover: #f9fafd;
    --bg-sidebar: #ffffff;
    --border: #e8ecf4;
    --border-light: #d5dce8;

    --text-primary: #111827;
    --text-secondary: #4b5675;
    --text-muted: #9aa3b8;

    --accent: #5b52f0;
    --accent-light: rgba(91, 82, 240, 0.08);
    --accent-glow: rgba(91, 82, 240, 0.2);

    --green: #12b886;
    --green-light: rgba(18, 184, 134, 0.08);
    --red: #f03e3e;
    --red-light: rgba(240, 62, 62, 0.08);
    --orange: #f76707;
    --orange-light: rgba(247, 103, 7, 0.08);
    --blue: #1c7ed6;
    --blue-light: rgba(28, 126, 214, 0.08);

    --sidebar-width: 260px;
    --topbar-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 18px;

    --shadow: 0 4px 24px rgba(0,0,0,0.07);
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 10px; }

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    left: 0; top: 0;
    z-index: 100;
    transition: var(--transition);
    overflow: hidden;
    box-shadow: 2px 0 12px rgba(0,0,0,0.04);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 38px; height: 38px;
    background: var(--accent);
    border-radius: 10px;
    display: grid;
    place-items: center;
    font-size: 16px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.brand-name {
    font-family: 'Syne', sans-serif;
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-section-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: 16px 10px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    margin-bottom: 2px;
    position: relative;
    font-size: 14px;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--bg-base);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 20%; bottom: 20%;
    width: 3px;
    background: var(--accent);
    border-radius: 0 3px 3px 0;
}

.nav-icon { width: 20px; text-align: center; font-size: 14px; flex-shrink: 0; }
.nav-text { flex: 1; }

.nav-badge {
    font-size: 11px; font-weight: 700;
    padding: 2px 7px; border-radius: 20px;
}
.badge-green { background: var(--green-light); color: var(--green); }
.badge-orange { background: var(--orange-light); color: var(--orange); }
.badge-red { background: var(--red-light); color: var(--red); }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-base);
}

.user-avatar-wrap { display: flex; align-items: center; gap: 10px; flex: 1; overflow: hidden; }

.user-avatar {
    width: 34px; height: 34px;
    background: var(--accent);
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 12px; font-weight: 700;
    color: #fff; flex-shrink: 0;
}

.user-info { display: flex; flex-direction: column; overflow: hidden; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-muted); }

.logout-btn {
    color: var(--text-muted); text-decoration: none;
    font-size: 15px; padding: 6px; border-radius: 6px;
    transition: var(--transition);
}
.logout-btn:hover { color: var(--red); background: var(--red-light); }

/* ============================================
   MAIN WRAPPER
   ============================================ */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: var(--transition);
}

.topbar {
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.topbar-left { display: flex; align-items: center; gap: 16px; }

.sidebar-toggle {
    background: none; border: none;
    color: var(--text-secondary); font-size: 18px;
    cursor: pointer; padding: 6px; border-radius: 6px;
    transition: var(--transition); display: none;
}
.sidebar-toggle:hover { color: var(--text-primary); background: var(--bg-base); }

.breadcrumb-page {
    font-family: 'Syne', sans-serif;
    font-size: 17px; font-weight: 700;
    color: var(--text-primary);
}

.topbar-right { display: flex; align-items: center; gap: 12px; }

.topbar-month-picker {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-base);
    border: 1px solid var(--border);
    padding: 7px 14px; border-radius: 8px;
    font-size: 13px; color: var(--text-secondary);
    cursor: pointer; transition: var(--transition);
}
.topbar-month-picker:hover { border-color: var(--accent); color: var(--accent); }

.topbar-alert {
    position: relative;
    width: 38px; height: 38px;
    display: grid; place-items: center;
    background: var(--bg-base);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer; transition: var(--transition); font-size: 15px;
}
.topbar-alert:hover { color: var(--text-primary); border-color: var(--border-light); }

.alert-dot {
    position: absolute; top: 8px; right: 8px;
    width: 7px; height: 7px;
    background: var(--red); border-radius: 50%;
    border: 2px solid var(--bg-card);
}

.topbar-currency {
    background: var(--accent-light); color: var(--accent);
    padding: 6px 12px; border-radius: 8px;
    font-size: 12px; font-weight: 700; letter-spacing: 0.5px;
}

.page-content { flex: 1; padding: 28px; overflow-y: auto; }

/* ============================================
   COMPONENTS
   ============================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.card:hover { border-color: var(--border-light); box-shadow: var(--shadow); }

.card-title {
    font-family: 'Syne', sans-serif;
    font-size: 13px; font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.5px; text-transform: uppercase;
    margin-bottom: 16px;
    display: flex; align-items: center; justify-content: space-between;
}

/* Stat Cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: var(--radius) var(--radius) 0 0;
}
.stat-card.green::before { background: var(--green); }
.stat-card.red::before { background: var(--red); }
.stat-card.blue::before { background: var(--blue); }
.stat-card.accent::before { background: var(--accent); }
.stat-card.orange::before { background: var(--orange); }

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-label {
    font-size: 11px; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    color: var(--text-muted); margin-bottom: 10px;
}

.stat-value {
    font-family: 'Syne', sans-serif;
    font-size: 24px; font-weight: 800;
    color: var(--text-primary);
    line-height: 1; margin-bottom: 10px;
}

.stat-footer { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); }
.stat-footer .up { color: var(--green); }
.stat-footer .down { color: var(--red); }

.stat-icon {
    position: absolute; right: 20px; top: 50%;
    transform: translateY(-50%);
    font-size: 36px; opacity: 0.05;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer; border: none;
    transition: var(--transition); text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #4740d4; box-shadow: 0 4px 16px var(--accent-glow); }
.btn-outline { background: transparent; border: 1px solid var(--border-light); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
.btn-danger { background: var(--red-light); color: var(--red); border: 1px solid transparent; }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { background: var(--green-light); color: var(--green); border: 1px solid transparent; }
.btn-success:hover { background: var(--green); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-icon { padding: 8px; width: 34px; height: 34px; justify-content: center; }

/* Tables */
.table-wrap { overflow-x: auto; }

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

thead th {
    background: var(--bg-base);
    padding: 12px 16px; text-align: left;
    font-size: 11px; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

tbody tr { border-bottom: 1px solid var(--border); transition: var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #f7f9fd; }
tbody td { padding: 14px 16px; color: var(--text-secondary); vertical-align: middle; }

/* Badges */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 20px;
    font-size: 11px; font-weight: 600;
}
.badge-success { background: var(--green-light); color: var(--green); }
.badge-danger { background: var(--red-light); color: var(--red); }
.badge-warning { background: var(--orange-light); color: var(--orange); }
.badge-info { background: var(--blue-light); color: var(--blue); }
.badge-accent { background: var(--accent-light); color: var(--accent); }

/* Progress Bar */
.progress-wrap { margin-bottom: 4px; }
.progress-header { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 6px; }
.progress-bar-bg { background: var(--bg-base); border-radius: 20px; height: 7px; overflow: hidden; border: 1px solid var(--border); }
.progress-bar-fill { height: 100%; border-radius: 20px; transition: width 0.5s ease; }
.fill-green { background: var(--green); }
.fill-red { background: var(--red); }
.fill-orange { background: var(--orange); }
.fill-accent { background: var(--accent); }
.fill-blue { background: var(--blue); }

/* Form Elements */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block; font-size: 12px; font-weight: 600;
    letter-spacing: 0.5px; color: var(--text-secondary);
    margin-bottom: 8px;
}
.form-control {
    width: 100%;
    background: var(--bg-base);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'DM Sans', sans-serif;
    transition: var(--transition);
    outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); background: #fff; }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 90px; }

.input-group { position: relative; }
.input-group .form-control { padding-left: 42px; }
.input-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }

/* Alert strips */
.alert-strip {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 18px; border-radius: var(--radius-sm);
    font-size: 13px; margin-bottom: 16px;
}
.alert-strip.warn { background: #fff8f0; border: 1px solid #ffd8a8; color: var(--orange); }
.alert-strip.danger { background: #fff5f5; border: 1px solid #ffc9c9; color: var(--red); }
.alert-strip.success { background: #f0faf6; border: 1px solid #b2f2d6; color: var(--green); }

/* Page Header */
.page-header {
    display: flex; align-items: center;
    justify-content: space-between; margin-bottom: 24px;
}
.page-header h1 { font-family: 'Syne', sans-serif; font-size: 24px; font-weight: 800; }
.page-header p { font-size: 13px; color: var(--text-muted); margin-top: 3px; }

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }

/* Category Pill */
.cat-pill {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border-radius: 20px;
    font-size: 12px; font-weight: 500;
}

/* Amount */
.amount-positive { color: var(--green); font-weight: 700; font-family: 'Syne', sans-serif; }
.amount-negative { color: var(--red); font-weight: 700; font-family: 'Syne', sans-serif; }

/* Chart container */
.chart-container { position: relative; }

/* Modal */
.modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.25);
    backdrop-filter: blur(4px);
    z-index: 200; align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }

.modal {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%; max-width: 480px;
    padding: 28px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
    animation: modalIn 0.2s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.modal-title { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 800; }
.modal-close {
    background: none; border: none; color: var(--text-muted);
    font-size: 18px; cursor: pointer; padding: 4px;
    border-radius: 6px; transition: var(--transition);
}
.modal-close:hover { color: var(--red); background: var(--red-light); }
.modal-footer {
    display: flex; gap: 10px; justify-content: flex-end;
    margin-top: 22px; padding-top: 18px;
    border-top: 1px solid var(--border);
}

/* Sidebar collapsed */
.sidebar-collapsed .sidebar { width: 64px; }
.sidebar-collapsed .brand-name,
.sidebar-collapsed .nav-text,
.sidebar-collapsed .nav-badge,
.sidebar-collapsed .nav-section-label,
.sidebar-collapsed .user-info { display: none; }
.sidebar-collapsed .main-wrapper { margin-left: 64px; }
.sidebar-collapsed .sidebar-brand { justify-content: center; }
.sidebar-collapsed .nav-item { justify-content: center; padding: 10px; }
.sidebar-collapsed .sidebar-footer { justify-content: center; }
.sidebar-collapsed .logout-btn { display: none; }

/* ============================================
   AUTH PAGES
   ============================================ */
.auth-body {
    background: var(--bg-base);
    display: flex; align-items: center;
    justify-content: center;
    min-height: 100vh; padding: 20px;
}

.auth-wrap {
    display: grid; grid-template-columns: 1fr 1fr;
    width: 100%; max-width: 900px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.1);
}

.auth-left {
    background: linear-gradient(140deg, #5b52f0 0%, #4740d4 100%);
    padding: 48px 40px;
    display: flex; flex-direction: column;
    justify-content: space-between;
    position: relative; overflow: hidden;
    color: #fff;
}
.auth-left::before {
    content: '';
    position: absolute;
    width: 300px; height: 300px;
    background: rgba(255,255,255,0.07);
    border-radius: 50%;
    top: -80px; right: -80px;
    pointer-events: none;
}
.auth-left::after {
    content: '';
    position: absolute;
    width: 200px; height: 200px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    bottom: -50px; left: -50px;
    pointer-events: none;
}

.auth-left-brand { display: flex; align-items: center; gap: 12px; }
.auth-left-brand .brand-icon { background: rgba(255,255,255,0.2); box-shadow: none; }
.auth-left-brand .brand-name { color: #fff; }

.auth-left h2 {
    font-family: 'Syne', sans-serif;
    font-size: 28px; font-weight: 800;
    line-height: 1.25; margin-bottom: 12px; color: #fff;
}
.auth-left p { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.7; }

.auth-features { margin-top: 28px; display: flex; flex-direction: column; gap: 10px; }
.auth-feature { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255,255,255,0.8); }
.auth-feature i { color: rgba(255,255,255,0.9); font-size: 13px; }

.auth-right {
    padding: 48px 40px;
    display: flex; flex-direction: column; justify-content: center;
}
.auth-right h3 { font-family: 'Syne', sans-serif; font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.auth-right p { font-size: 13px; color: var(--text-muted); margin-bottom: 28px; }

.auth-link { font-size: 13px; text-align: center; color: var(--text-muted); margin-top: 20px; }
.auth-link a { color: var(--accent); text-decoration: none; font-weight: 600; }
.auth-link a:hover { text-decoration: underline; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-wrapper { margin-left: 0; }
    .sidebar-toggle { display: block; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .auth-wrap { grid-template-columns: 1fr; }
    .auth-left { display: none; }
}
@media (max-width: 600px) {
    .stat-grid { grid-template-columns: 1fr; }
    .page-content { padding: 16px; }
    .topbar { padding: 0 16px; }
    .topbar-month-picker { display: none; }
}