* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #1d3557;
            --accent: #f4a261;
            --bg: #0a0a0a;
            --bg-card: #141414;
            --bg-input: #1e1e1e;
            --text: #f1faee;
            --text-muted: #a8dadc;
            --border: #2a2a2a;
            --success: #2d6a4f;
            --warning: #e9c46a;
            --danger: #e63946;
            --green: #06d6a0;
            --yellow: #ffd166;
            --red: #ef476f;
        }
        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
        }
        .login-page {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0a0a0a 100%);
            position: relative;
        }
        .login-page::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23e63946' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        .login-container {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 3rem;
            width: 100%;
            max-width: 450px;
            position: relative;
            z-index: 1;
            box-shadow: 0 25px 60px rgba(230, 57, 70, 0.1);
        }
        .login-logo {
            text-align: center;
            margin-bottom: 2rem;
        }
        .login-logo h1 {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 2px;
        }
        .login-logo .subtitle {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-top: 0.5rem;
            letter-spacing: 4px;
            text-transform: uppercase;
        }
        .login-tabs {
            display: flex;
            gap: 0;
            margin-bottom: 2rem;
            background: var(--bg-input);
            border-radius: 12px;
            overflow: hidden;
        }
        .login-tab {
            flex: 1;
            padding: 12px;
            text-align: center;
            cursor: pointer;
            border: none;
            background: transparent;
            color: var(--text-muted);
            font-weight: 600;
            transition: all 0.3s;
            font-size: 0.9rem;
        }
        .login-tab.active {
            background: var(--primary);
            color: white;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 0.4rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text);
            font-size: 0.95rem;
            transition: all 0.3s;
            font-family: 'Inter', sans-serif;
        }
        .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(230, 57, 70, 0.15);
        }
        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s;
            font-family: 'Inter', sans-serif;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            width: 100%;
            padding: 14px;
            font-size: 1rem;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230, 57, 70, 0.35);
        }
        .btn-secondary {
            background: var(--bg-input);
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(230, 57, 70, 0.1);
        }
        .btn-success {
            background: linear-gradient(135deg, var(--success), #40916c);
            color: white;
        }
        .btn-warning {
            background: linear-gradient(135deg, var(--accent), #e76f51);
            color: white;
        }
        .btn-danger {
            background: linear-gradient(135deg, var(--danger), #c1121f);
            color: white;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.8rem;
        }
        .error-msg {
            color: var(--danger);
            font-size: 0.85rem;
            margin-top: 0.5rem;
            text-align: center;
        }
        .success-msg {
            color: var(--green);
            font-size: 0.85rem;
            margin-top: 0.5rem;
            text-align: center;
        }

        /* App Layout */
        .app-container {
            display: none;
            min-height: 100vh;
        }
        .app-container.active {
            display: block;
        }
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 260px;
            background: var(--bg-card);
            border-right: 1px solid var(--border);
            z-index: 100;
            overflow-y: auto;
            transition: transform 0.3s;
        }
        .sidebar-header {
            padding: 1.5rem;
            border-bottom: 1px solid var(--border);
            text-align: center;
        }
        .sidebar-header h2 {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .sidebar-header p {
            font-size: 0.7rem;
            color: var(--text-muted);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-top: 0.3rem;
        }
        .sidebar-nav {
            padding: 1rem 0;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 1.5rem;
            cursor: pointer;
            transition: all 0.3s;
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
            border-left: 3px solid transparent;
        }
        .nav-item:hover {
            background: rgba(230, 57, 70, 0.05);
            color: var(--text);
        }
        .nav-item.active {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            border-left-color: var(--primary);
        }
        .nav-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }
        .main-content {
            margin-left: 260px;
            padding: 2rem;
            min-height: 100vh;
        }
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
        }
        .top-bar h1 {
            font-size: 1.8rem;
            font-weight: 800;
        }
        .top-bar .user-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .top-bar .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .mobile-toggle {
            display: none;
            background: var(--bg-input);
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
        }
        .section {
            display: none;
        }
        .section.active {
            display: block;
            animation: fadeIn 0.4s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .card-title svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.5rem;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 800;
            margin: 0.5rem 0;
        }
        .stat-card .stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .stat-card.red .stat-value { color: var(--red); }
        .stat-card.green .stat-value { color: var(--green); }
        .stat-card.yellow .stat-value { color: var(--yellow); }
        .stat-card.accent .stat-value { color: var(--accent); }

        .form-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .form-row .form-group { margin-bottom: 0; }
        .result-box {
            background: linear-gradient(135deg, rgba(230,57,70,0.1), rgba(244,162,97,0.1));
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1.2rem;
            margin-top: 1rem;
        }
        .result-box h4 {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.8rem;
        }
        .result-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
        }
        .result-item {
            text-align: center;
        }
        .result-item .value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
        }
        .result-item .label {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Heart Rate Zones */
        .zone-bar {
            display: flex;
            gap: 4px;
            margin: 0.8rem 0;
        }
        .zone-segment {
            flex: 1;
            height: 30px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: #000;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .zone-segment:hover { transform: scaleY(1.15); }
        .zone-green { background: var(--green); }
        .zone-yellow { background: var(--yellow); }
        .zone-red { background: var(--red); }

        /* Exercise Tables */
        .exercise-group {
            margin-bottom: 1.5rem;
        }
        .exercise-group-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.2rem;
            background: var(--bg-input);
            border-radius: 12px;
            margin-bottom: 0.8rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .exercise-group-header:hover {
            background: rgba(230,57,70,0.1);
        }
        .exercise-group-header h3 {
            font-size: 1rem;
            font-weight: 700;
        }
        .exercise-group-header .badge {
            background: var(--primary);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .exercise-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1rem;
        }
        .exercise-table th {
            padding: 10px 12px;
            text-align: left;
            font-size: 0.75rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            border-bottom: 1px solid var(--border);
            font-weight: 600;
        }
        .exercise-table td {
            padding: 8px 12px;
        }
        .exercise-table input, .exercise-table select {
            width: 100%;
            padding: 8px 10px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 0.85rem;
            font-family: 'Inter', sans-serif;
        }
        .exercise-table input:focus, .exercise-table select:focus {
            outline: none;
            border-color: var(--primary);
        }
        .exercise-table .remove-btn {
            background: none;
            border: none;
            color: var(--danger);
            cursor: pointer;
            font-size: 1.2rem;
            padding: 4px;
        }
        .exercise-table .remove-btn:hover { opacity: 0.7; }
        .total-load {
            font-weight: 700;
            color: var(--accent);
        }

        /* Meal Cards */
        .meal-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .meal-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 1rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--border);
        }
        .meal-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        .meal-card-header h3 {
            font-size: 1rem;
            font-weight: 700;
        }
        .meal-item {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto;
            gap: 0.5rem;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        .meal-item input {
            padding: 8px 10px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 0.85rem;
            font-family: 'Inter', sans-serif;
        }
        .meal-item input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .meal-item .remove-btn {
            background: none;
            border: none;
            color: var(--danger);
            cursor: pointer;
            font-size: 1.1rem;
        }
        .meal-totals {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border);
        }
        .meal-total-item {
            flex: 1;
            text-align: center;
        }
        .meal-total-item .value {
            font-size: 1.1rem;
            font-weight: 700;
        }
        .meal-total-item .label {
            font-size: 0.65rem;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        /* Payment */
        .payment-card {
            background: linear-gradient(135deg, #1d3557, #457b9d);
            border-radius: 16px;
            padding: 2rem;
            color: white;
            margin-bottom: 1.5rem;
        }
        .payment-card .amount {
            font-size: 2.5rem;
            font-weight: 800;
        }
        .payment-card .status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 0.5rem;
        }
        .status-paid {
            background: rgba(6, 214, 160, 0.2);
            color: var(--green);
        }
        .status-pending {
            background: rgba(239, 71, 111, 0.2);
            color: var(--red);
        }
        .payment-methods {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .payment-method {
            background: var(--bg-card);
            border: 2px solid var(--border);
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        .payment-method:hover, .payment-method.selected {
            border-color: var(--primary);
            background: rgba(230, 57, 70, 0.05);
        }
        .payment-method svg {
            width: 40px;
            height: 40px;
            margin-bottom: 0.8rem;
            color: var(--primary);
        }
        .payment-method h4 {
            font-size: 0.9rem;
            margin-bottom: 0.3rem;
        }
        .payment-method p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Chart containers */
        .chart-container {
            position: relative;
            height: 300px;
            width: 100%;
        }

        /* Progress bars */
        .progress-bar-container {
            background: var(--bg-input);
            border-radius: 10px;
            height: 12px;
            overflow: hidden;
            margin-top: 0.5rem;
        }
        .progress-bar {
            height: 100%;
            border-radius: 10px;
            transition: width 1s ease;
        }

        /* Modal */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.7);
            z-index: 1000;
            align-items: center;
            justify-content: center;
        }
        .modal-overlay.active {
            display: flex;
        }
        .modal {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2rem;
            width: 100%;
            max-width: 500px;
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal h2 {
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .modal-close {
            float: right;
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Access blocked */
        .access-blocked {
            display: none;
            text-align: center;
            padding: 4rem 2rem;
        }
        .access-blocked svg {
            width: 80px;
            height: 80px;
            color: var(--red);
            margin-bottom: 1.5rem;
        }
        .access-blocked h2 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        .access-blocked p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-3 { grid-template-columns: repeat(2, 1fr); }
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
                padding: 1rem;
            }
            .mobile-toggle {
                display: block;
            }
            .grid-2, .grid-3, .grid-4 {
                grid-template-columns: 1fr;
            }
            .meal-item {
                grid-template-columns: 1fr 1fr;
            }
            .exercise-table {
                font-size: 0.8rem;
            }
            .exercise-table th, .exercise-table td {
                padding: 6px 4px;
            }
        }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg); }
        ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary); }

        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 16px 24px;
            border-radius: 12px;
            font-weight: 600;
            z-index: 2000;
            animation: slideIn 0.3s ease, slideOut 0.3s ease 2.7s;
            max-width: 400px;
        }
        .notification.success {
            background: var(--success);
            color: white;
        }
        .notification.error {
            background: var(--danger);
            color: white;
        }
        @keyframes slideIn {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        @keyframes slideOut {
            from { transform: translateX(0); opacity: 1; }
            to { transform: translateX(100%); opacity: 0; }
        }

        .weekly-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 0.8rem;
        }
        .day-card {
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1rem;
            text-align: center;
            min-height: 120px;
        }
        .day-card .day-name {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
        }
        .day-card .day-workout {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        .day-card .day-progress {
            margin-top: 0.5rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .evo-meter {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.5rem;
            background: var(--bg-input);
            border-radius: 12px;
            margin-top: 1rem;
        }
        .evo-meter .evo-value {
            font-size: 3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .evo-meter .evo-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hidden { display: none !important; }

/* Correção: cabeçalho das refeições responsivo */
.meal-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.meal-header span {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .meal-header {
        display: none;
    }
    .meal-card-header {
        flex-wrap: wrap;
    }
    .sidebar.open {
        box-shadow: 12px 0 40px rgba(0, 0, 0, 0.45);
    }
}