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

:root {
    --primary: #22c55e;
    --primary-dark: #16a34a;
    --primary-light: #e8f9ee;
    --success: #2dd55b;
    --success-light: #e8f9ee;
    --warning: #ffc409;
    --warning-light: #fff8e1;
    --danger: #c5000f;
    --danger-light: #fee2e2;
    --info: #0abab5;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --bg: #eeeded;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
    --sidebar-width: 260px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--gray-800);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

.hidden { display: none !important; }

/* ========== LOGIN SCREEN ========== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-container {
    background: white;
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 420px;
    max-width: 90%;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo h1 {
    font-size: 28px;
    color: var(--primary);
    margin: 16px 0 8px;
    font-weight: 700;
}

.login-logo p {
    color: var(--gray-500);
    font-size: 14px;
}

.logo-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    box-shadow: 0 10px 20px rgba(34, 197, 94, 0.3);
}

.logo-icon.small {
    width: 40px;
    height: 40px;
    font-size: 16px;
    border-radius: 10px;
    box-shadow: none;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 13px;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.btn-primary {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(34, 197, 94, 0.4);
}

.login-hint {
    text-align: center;
    margin-top: 16px;
    color: var(--gray-400);
    font-size: 12px;
}

/* ========== APP LAYOUT ========== */
.app {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* ========== SIDEBAR ========== */
.sidebar {
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    flex-shrink: 0;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-brand h2 {
    font-size: 16px;
    color: var(--gray-900);
    font-weight: 700;
}

.sidebar-brand span {
    font-size: 11px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.nav-section {
    padding: 16px 20px 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--gray-50);
    color: var(--primary);
}

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.nav-icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
}

.user-info strong {
    display: block;
    font-size: 13px;
    color: var(--gray-900);
}

.user-info small {
    color: var(--gray-500);
    font-size: 11px;
}

.btn-logout {
    background: var(--gray-100);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    color: var(--gray-600);
    transition: var(--transition);
}

.btn-logout:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* ========== MAIN CONTENT ========== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ========== TOPBAR ========== */
.topbar {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    height: 64px;
    flex-shrink: 0;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--gray-700);
    padding: 8px;
    border-radius: 6px;
    display: none;
}

.menu-toggle:hover {
    background: var(--gray-100);
}

.topbar-search {
    flex: 1;
    max-width: 400px;
}

.topbar-search input {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: var(--gray-50);
    font-size: 13px;
    transition: var(--transition);
}

.topbar-search input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.icon-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    position: relative;
    transition: var(--transition);
    color: var(--gray-600);
}

.icon-btn:hover {
    background: var(--gray-100);
}

.badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

/* ========== PAGE CONTAINER ========== */
.page-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.page-container::-webkit-scrollbar {
    width: 8px;
}

.page-container::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

/* ========== PAGE HEADER ========== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title h1 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 700;
    margin-bottom: 4px;
}

.page-title p {
    color: var(--gray-500);
    font-size: 13px;
}

.page-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ========== BUTTONS ========== */
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    width: auto;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.25);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    justify-content: center;
    background: transparent;
    color: var(--gray-600);
}

.btn-icon:hover {
    background: var(--gray-100);
    color: var(--primary);
}

/* ========== CARDS ========== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-100);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

/* ========== STATS GRID ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.yellow { background: var(--warning-light); color: #d97706; }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-icon.purple { background: #f3e8ff; color: #9333ea; }
.stat-icon.orange { background: #ffedd5; color: #ea580c; }

.stat-info h3 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 700;
    margin-bottom: 2px;
}

.stat-info p {
    color: var(--gray-500);
    font-size: 12px;
    font-weight: 500;
}

/* ========== TABLES ========== */
.table-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.table-filters {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.table-filters input, .table-filters select {
    padding: 8px 12px;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    font-size: 13px;
    background: white;
}

.table-filters input:focus, .table-filters select:focus {
    outline: none;
    border-color: var(--primary);
}

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

.data-table th {
    background: var(--gray-50);
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-200);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
    font-size: 13px;
}

.data-table tr:hover {
    background: var(--gray-50);
}

.data-table tr:last-child td {
    border-bottom: none;
}

/* ========== BADGES ========== */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-active { background: var(--success-light); color: #166534; }
.status-pending { background: var(--warning-light); color: #92400e; }
.status-expired { background: var(--danger-light); color: #991b1b; }
.status-draft { background: var(--gray-100); color: var(--gray-600); }
.status-completed { background: var(--primary-light); color: var(--primary); }

/* ========== FORMS ========== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 13px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-row.three {
    grid-template-columns: repeat(3, 1fr);
}

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 720px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

.modal.large {
    max-width: 960px;
}

.modal.small {
    max-width: 480px;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 18px;
    color: var(--gray-900);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-400);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ========== TOAST ========== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: white;
    padding: 14px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInRight 0.3s ease;
    border-left: 4px solid var(--primary);
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: 8px;
    font-size: 16px;
}

/* ========== RESPONSIVE ========== */

/* Sidebar backdrop */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 99;
}

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

@media (max-width: 768px) {
    body {
        overflow: hidden;
    }

    /* Sidebar como drawer */
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        height: 100vh;
        z-index: 100;
        transition: left 0.25s ease;
        width: 260px;
        box-shadow: var(--shadow-xl);
    }

    .sidebar.open {
        left: 0;
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Topbar mobile */
    .topbar {
        padding: 10px 12px;
        height: 52px;
        gap: 8px;
    }

    .topbar-search {
        flex: 1;
        max-width: none;
    }

    .topbar-search input {
        padding: 8px 12px;
        font-size: 13px;
    }

    .topbar-actions {
        gap: 4px;
    }

    .icon-btn {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    /* Page container mobile */
    .page-container {
        padding: 16px 12px;
    }

    /* Page header mobile */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 16px;
    }

    .page-title h1 {
        font-size: 20px;
    }

    .page-actions {
        width: 100%;
    }

    .page-actions .btn {
        flex: 1;
        justify-content: center;
        padding: 10px 12px;
        font-size: 12px;
    }

    /* Stats grid mobile */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-bottom: 16px;
    }

    .stat-card {
        padding: 14px 12px;
        gap: 10px;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
        border-radius: 10px;
    }

    .stat-info h3 {
        font-size: 18px;
    }

    .stat-info p {
        font-size: 11px;
    }

    /* Tables mobile */
    .table-container {
        border-radius: 8px;
    }

    .table-filters {
        padding: 12px;
        gap: 8px;
        flex-direction: column;
    }

    .table-filters input,
    .table-filters select {
        width: 100%;
    }

    .data-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table th,
    .data-table td {
        padding: 10px 12px;
        font-size: 12px;
        white-space: nowrap;
    }

    /* Forms mobile */
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

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

    /* Modals mobile */
    .modal-overlay {
        padding: 12px;
        align-items: flex-end;
    }

    .modal {
        max-width: 100%;
        max-height: 85vh;
        border-radius: 16px 16px 0 0;
    }

    .modal.large {
        max-width: 100%;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-header h2 {
        font-size: 16px;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 12px 16px;
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
        justify-content: center;
    }

    /* Toast mobile */
    .toast-container {
        top: 12px;
        right: 12px;
        left: 12px;
    }

    .toast {
        min-width: auto;
        width: 100%;
    }

    /* Cards mobile */
    .card {
        padding: 16px;
        border-radius: 10px;
    }

    .card-header {
        margin-bottom: 12px;
        padding-bottom: 12px;
    }

    .card-title {
        font-size: 14px;
    }

    /* Buttons mobile */
    .btn {
        padding: 10px 14px;
        font-size: 12px;
    }

    .btn-sm {
        padding: 6px 10px;
        font-size: 11px;
    }

    /* Empty state mobile */
    .empty-state {
        padding: 40px 16px;
    }

    .empty-state-icon {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 12px;
    }

    .page-title h1 {
        font-size: 18px;
    }

    .topbar-search {
        display: none;
    }

    .modal-overlay {
        padding: 0;
    }

    .modal {
        max-height: 90vh;
        border-radius: 12px 12px 0 0;
    }
}