/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --secondary: #1E293B;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    --dark-bg: #0B1120;
    --dark-card: rgba(15, 23, 42, 0.8);
    --dark-border: rgba(255, 255, 255, 0.08);
    --text-main: #F1F5F9;
    --text-muted: #94A3B8;
    --input-bg: #1E293B;
}

body {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-main);
    background: linear-gradient(145deg, #0B1120 0%, #0F172A 100%);
    min-height: 100vh;
}

/* Scrollbar Custom */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Login Page Layout */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--dark-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--dark-border);
    border-radius: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.login-header {
    text-align: center;
    padding: 40px 30px 20px;
}

.login-logo-image {
    width: 72px;
    height: 72px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.3));
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #E5E7EB, #94A3B8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.login-form {
    padding: 0 30px 30px;
}

/* Dashboard Layout */
body:not(.login-page) {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 260px;
    background: #0B1120;
    border-right: 1px solid var(--dark-border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--dark-border);
    text-align: center;
}

.sidebar-logo-image {
    width: 44px;
    height: 44px;
    margin-bottom: 10px;
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, #E5E7EB, #94A3B8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-muted);
    text-decoration: none;
    transition: 0.2s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
}

.nav-item.active {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--dark-border);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-bar {
    background: rgba(15, 23, 42, 0.5);
    padding: 20px 30px;
    border-bottom: 1px solid var(--dark-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

/* Cards & Stats */
.card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 1.5rem;
    margin-bottom: 24px;
}

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

.card-body {
    padding: 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--dark-card);
    padding: 24px;
    border-radius: 1.5rem;
    border: 1px solid var(--dark-border);
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.bg-primary {
    background: var(--primary);
}

.bg-success {
    background: var(--success);
}

.bg-info {
    background: var(--info);
}

.bg-warning {
    background: var(--warning);
}

.bg-secondary {
    background: #475569;
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
}

.stat-info p {
    color: var(--text-muted);
    font-size: 13px;
}

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

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

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

.table th {
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 20px;
}

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

input,
textarea,
select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--dark-border);
    border-radius: 10px;
    padding: 12px 16px;
    color: white;
    transition: 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--dark-border);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

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

/* Badges */
.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid var(--warning);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #0F172A;
    border: 1px solid var(--dark-border);
    border-radius: 2rem;
    width: 90%;
    max-width: 550px;
}

/* Spinner */
.spinner {
    animation: rotate 1s linear infinite;
    width: 20px;
    height: 20px;
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   RESPONSIVIDADE (MOBILE & TABLET)
   ========================================================================== */

/* Tablets e Desktops Pequenos */
@media (max-width: 1024px) {
    .page-content {
        padding: 20px;
    }

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

    .dashboard-grid {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }
}

/* Smartphones (iPhone, Android, etc) */
@media (max-width: 768px) {
    body:not(.login-page) {
        height: 100dvh;
        display: block;
        overflow: hidden;
    }

    /* Sidebar vira Bottom Navigation no Mobile */
    .sidebar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        top: auto;
        width: 100%;
        height: calc(70px + env(safe-area-inset-bottom));
        border-right: none;
        border-top: 1px solid var(--dark-border);
        z-index: 1200;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(10px);
    }

    .sidebar-header,
    .sidebar-footer {
        display: none;
    }

    .sidebar-nav {
        padding: 0;
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        height: 100%;
    }

    .nav-item {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 4px;
        padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
        font-size: 10px;
        text-align: center;
        border-right: none;
    }

    .nav-item svg {
        width: 20px;
        height: 20px;
    }

    .nav-item.active {
        border-right: none;
        border-top: 3px solid var(--primary);
        background: transparent;
    }

    .main-content {
        height: 100dvh;
        padding-bottom: calc(70px + env(safe-area-inset-bottom));
    }

    .top-bar {
        padding: 15px 20px;
    }

    .top-bar h1 {
        font-size: 1.4rem;
    }

    .page-content {
        padding: 15px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-info h3 {
        font-size: 22px;
    }

    .card-header {
        padding: 15px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

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

    .card-body {
        padding: 15px;
    }

    /* Tabelas Mobile */
    .table-responsive {
        margin: 0 -15px;
        padding: 0 15px;
    }

    .table {
        min-width: 600px;
    }

    /* Modais Mobile */
    .modal-content {
        width: 100%;
        max-width: none;
        height: 80vh;
        border-radius: 2rem 2rem 0 0;
        position: fixed;
        bottom: 0;
        display: flex;
        flex-direction: column;
    }

    .modal-body {
        flex: 1;
        overflow-y: auto;
        padding: 20px;
    }

    .modal-footer {
        padding: 20px;
        background: var(--dark-bg);
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 15px;
    }

    .login-card {
        border-radius: 1.5rem;
    }

    .login-header {
        padding: 30px 20px 10px;
    }

    .login-form {
        padding: 0 20px 20px;
    }
}