/* ===== VARIÁVEIS ===== */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;
    --bg-card: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --accent-primary: #6366f1;
    --accent-hover: #4f46e5;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border-color: #333333;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
}

a:hover {
    color: var(--accent-hover);
}

/* ===== LOGIN PAGE ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1a1a2e 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 28px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: var(--text-secondary);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-grid .full-width {
    grid-column: span 2;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.form-inline {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.form-inline input {
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn:hover {
    background: var(--border-color);
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

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

/* ===== SIDEBAR ===== */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 20px;
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-menu {
    list-style: none;
    padding: 16px 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    color: var(--text-secondary);
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-menu li.active a {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 24px;
    background: var(--bg-primary);
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.top-bar h1 {
    font-size: 24px;
}

.user-info {
    color: var(--text-secondary);
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--border-color);
}

.stat-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 12px;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 24px;
    font-weight: 600;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ===== CONTENT SECTIONS ===== */
.content-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

/* ===== TABLES ===== */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:hover {
    background: var(--bg-tertiary);
}

.text-center {
    text-align: center;
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-ativo {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.badge-inativo {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.badge-pausado {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.badge-bloqueado {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

/* ===== ALERTS ===== */
.alert {
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 10px;
}

.tab {
    padding: 10px 20px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    background: var(--accent-primary);
    color: white;
}

/* ===== FINANCE SECTION ===== */
.finance-section h3 {
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== NOTES ===== */
.notes-section textarea {
    width: 100%;
    padding: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    resize: vertical;
    margin-bottom: 12px;
}

.notes-section h3 {
    margin: 24px 0 16px;
    color: var(--text-secondary);
    font-size: 14px;
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.note-card {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 8px;
    border-left: 3px solid var(--accent-primary);
}

.note-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.note-text {
    color: var(--text-primary);
}

/* ===== FILTER FORM ===== */
.filter-form {
    display: flex;
    gap: 12px;
    align-items: center;
}

.filter-form select {
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .main-content {
        margin-left: 0;
    }

    .app-container {
        flex-direction: column;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-grid .full-width {
        grid-column: span 1;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .top-bar {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .tabs {
        flex-wrap: wrap;
    }
}