/* === VARIAVEIS === */
:root {
    --sb-w: 255px;
    --tb-h: 60px;
    --sb-bg: #0f172a;
    --sb-hover: rgba(255,255,255,.06);
    --sb-active-bg: rgba(59,130,246,.15);
    --sb-active-border: #3b82f6;
    --sb-text: #94a3b8;
    --sb-text-on: #f1f5f9;
    --body-bg: #f1f5f9;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --c-blue: #3b82f6;
    --c-green: #10b981;
    --c-red: #ef4444;
    --c-amber: #f59e0b;
    --c-violet: #8b5cf6;
    --c-neutral: #64748b;
    --radius: .75rem;
    --shadow: 0 1px 3px rgba(0,0,0,.07);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--body-bg);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: .9rem;
    color: #1e293b;
}

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

/* === LAYOUT === */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* === SIDEBAR === */
.sidebar {
    width: var(--sb-w);
    background: var(--sb-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1040;
    transition: transform .22s ease;
    overflow-y: auto;
}

.sb-header {
    padding: 1.1rem 1.25rem .9rem;
    border-bottom: 1px solid rgba(255,255,255,.07);
    flex-shrink: 0;
}

.sb-brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
}

.sb-brand .brand-icon {
    width: 34px;
    height: 34px;
    background: var(--c-blue);
    border-radius: .45rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.sb-brand small {
    display: block;
    font-size: .62rem;
    font-weight: 400;
    color: var(--sb-text);
    margin-top: .1rem;
}

.sb-nav {
    flex: 1;
    padding: .5rem 0;
    overflow-y: auto;
}

.sb-section-label {
    display: block;
    font-size: .62rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: #475569;
    padding: .55rem 1.25rem .2rem;
}

.sb-link {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .55rem 1.25rem;
    color: var(--sb-text);
    font-size: .855rem;
    border-left: 3px solid transparent;
    transition: background .12s, color .12s;
}

.sb-link:hover {
    background: var(--sb-hover);
    color: var(--sb-text-on);
}

.sb-link.active {
    background: var(--sb-active-bg);
    color: #fff;
    border-left-color: var(--sb-active-border);
}

.sb-link i {
    width: 17px;
    text-align: center;
    font-size: .95rem;
    flex-shrink: 0;
}

.sb-footer {
    border-top: 1px solid rgba(255,255,255,.07);
    padding: .85rem 1.25rem;
    flex-shrink: 0;
}

.sb-user {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.sb-avatar {
    width: 32px;
    height: 32px;
    background: var(--c-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .78rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.sb-username {
    font-size: .8rem;
    font-weight: 600;
    color: var(--sb-text-on);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sb-logout {
    font-size: .7rem;
    color: var(--sb-text);
    transition: color .12s;
}

.sb-logout:hover { color: var(--c-red); }

/* === MAIN === */
.main-area {
    margin-left: var(--sb-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: var(--tb-h);
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: .75rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    padding: .2rem .4rem;
    border-radius: .4rem;
    cursor: pointer;
    color: var(--c-neutral);
    line-height: 1;
}

.topbar-toggle:hover { background: var(--border); }

.topbar-title {
    flex: 1;
    font-size: .95rem;
    font-weight: 600;
}

.topbar-actions { display: flex; gap: .4rem; }

.page-content {
    flex: 1;
    padding: 1.6rem;
}

/* === OVERLAY MOBILE === */
.sb-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 1039;
}

/* === CARDS === */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    padding: .85rem 1.15rem;
    font-weight: 600;
    font-size: .875rem;
}

.card-body { padding: 1.15rem; }
.card-body.p-0 { padding: 0; }

/* stat cards */
.stat-card {
    padding: 1.1rem 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--c-neutral);
    position: relative;
    overflow: hidden;
}

.stat-card.income  { border-left-color: var(--c-green); }
.stat-card.expense { border-left-color: var(--c-red); }
.stat-card.balance { border-left-color: var(--c-blue); }
.stat-card.fixed   { border-left-color: var(--c-amber); }
.stat-card.invest  { border-left-color: var(--c-violet); }

.stat-label {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--c-neutral);
    margin-bottom: .35rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.1;
}

/* === CORES === */
.text-income  { color: var(--c-green)   !important; }
.text-expense { color: var(--c-red)     !important; }
.text-fixed   { color: var(--c-amber)   !important; }
.text-invest  { color: var(--c-violet)  !important; }

/* === BADGES === */
.bdg {
    display: inline-block;
    padding: .25em .6em;
    border-radius: .35rem;
    font-size: .72rem;
    font-weight: 600;
}

.bdg-income  { background: var(--c-green);  color: #fff; }
.bdg-expense { background: var(--c-red);    color: #fff; }
.bdg-fixed   { background: var(--c-amber);  color: #fff; }
.bdg-invest  { background: var(--c-violet); color: #fff; }
.bdg-blue    { background: var(--c-blue);   color: #fff; }

/* === TABELAS === */
.table { margin-bottom: 0; }

.table thead th {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--c-neutral);
    padding: .65rem 1rem;
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

.table tbody td {
    padding: .65rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
    font-size: .855rem;
}

.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr:hover   { background: #f8fafc; }

/* === FORMS === */
.form-label { font-size: .8rem; font-weight: 500; margin-bottom: .3rem; color: #334155; }

.form-control, .form-select {
    font-size: .855rem;
    border-color: var(--border);
    border-radius: .5rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--c-blue);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

/* === BOTOES === */
.btn { border-radius: .5rem; font-size: .835rem; font-weight: 500; }

/* === EMPTY STATE === */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--c-neutral);
}
.empty-state i { font-size: 2.2rem; opacity: .35; }
.empty-state p { margin: .6rem 0 0; font-size: .875rem; }

/* === INVEST CARD === */
.invest-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem;
    box-shadow: var(--shadow);
    transition: box-shadow .15s;
}
.invest-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.09); }

/* === LOGIN === */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
}

.login-card {
    width: 100%;
    max-width: 410px;
    border-radius: 1rem;
    border: none;
}

/* === FOOTER === */
.app-footer {
    border-top: 1px solid var(--border);
    padding: .65rem 1.5rem;
    font-size: .72rem;
    color: var(--c-neutral);
    background: #fff;
}

/* === ALERTS === */
.alert { border-radius: var(--radius); font-size: .855rem; }

/* === PROGRESS === */
.progress { background: #e2e8f0; border-radius: 1rem; }
.progress-bar { border-radius: 1rem; }

/* === MOBILE === */
@media (max-width: 991px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); box-shadow: 0 0 20px rgba(0,0,0,.3); }
    .sb-overlay.show { display: block; }
    .topbar-toggle { display: flex; }
    .main-area { margin-left: 0; }
    .page-content { padding: 1rem; }
    .stat-value { font-size: 1.15rem; }
}