/* ========================================
   Sistema SaaS Multi-Tenant - Design Moderno
   ======================================== */

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

:root {
    /* Cores principais - Palette Neutra e Profissional */
    --primary: #2563eb;           /* Azul suave e profissional */
    --primary-dark: #1e40af;      /* Azul mais escuro */
    --primary-light: #60a5fa;     /* Azul claro */
    --primary-lighter: #93c5fd;   /* Azul muito claro */
    
    --secondary: #64748b;
    --secondary-dark: #475569;
    
    --success: #059669;           /* Verde esmeralda suave */
    --success-dark: #047857;
    --success-light: #10b981;
    
    --danger: #dc2626;            /* Vermelho suave */
    --danger-dark: #b91c1c;
    --danger-light: #ef4444;
    
    --warning: #d97706;           /* Laranja suave */
    --warning-dark: #b45309;
    --warning-light: #f59e0b;
    
    --info: #0284c7;              /* Azul céu suave */
    --info-dark: #0369a1;
    
    /* Cores de fundo */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #1e293b;
    --bg-header: #ffffff;
    
    /* Gradientes SUAVES */
    --gradient-primary: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    --gradient-success: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    --gradient-danger: linear-gradient(135deg, #f87171 0%, #ef4444 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    
    /* Cores de texto */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* Cores de borda */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Cores de cinza - Slate */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Sombras modernas */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Avisos de licença */
    --aviso-1-bg: #fef3c7;
    --aviso-1-border: #f59e0b;
    --aviso-1-text: #92400e;
    
    --aviso-2-bg: #fed7aa;
    --aviso-2-border: #ea580c;
    --aviso-2-text: #7c2d12;
    
    --vencida-bg: #fecaca;
    --vencida-border: #dc2626;
    --vencida-text: #991b1b;
    
    --bloqueada-bg: #991b1b;
    --bloqueada-border: #7f1d1d;
    --bloqueada-text: #ffffff;
    
    /* Tipografia */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Droid Sans Mono', 'Source Code Pro', monospace;
    
    /* Transições */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET E BASE
   ======================================== */

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ========================================
   CONTAINER
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
}

/* ========================================
   HEADER MODERNO
   ======================================== */

header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.95);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

nav ul {
    display: flex;
    gap: var(--spacing-sm);
    list-style: none;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
    position: relative;
}

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

nav a.active {
    color: var(--primary);
    background: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-full);
    border: 1px solid var(--border-light);
}

.user-info span {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* ========================================
   CARDS MODERNOS
   ======================================== */

.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

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

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

/* ========================================
   BOTÕES MODERNOS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    font-family: var(--font-sans);
    line-height: 1.5;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 1px 3px 0 rgba(99, 102, 241, 0.3), 0 1px 2px 0 rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.4), 0 2px 4px -1px rgba(99, 102, 241, 0.3);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 1px 3px 0 rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: var(--success-dark);
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.4);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 1px 3px 0 rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: var(--danger-dark);
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.4);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning);
    color: white;
    box-shadow: 0 1px 3px 0 rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
    background: var(--warning-dark);
    box-shadow: 0 4px 6px -1px rgba(245, 158, 11, 0.4);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

/* ========================================
   FORMULÁRIOS MODERNOS
   ======================================== */

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
    background: var(--bg-card);
    color: var(--text-primary);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

/* ========================================
   TABELAS MODERNAS
   ======================================== */

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

thead {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

th {
    padding: 1rem 1.25rem;
    text-align: left;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

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

tbody tr {
    transition: all var(--transition-fast);
}

tbody tr:hover {
    background: var(--gray-50);
}

/* ========================================
   BADGES MODERNOS
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1;
}

.badge-ativa {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-dark);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-aviso_1 {
    background: var(--aviso-1-bg);
    color: var(--aviso-1-text);
    border: 1px solid var(--aviso-1-border);
}

.badge-aviso_2 {
    background: var(--aviso-2-bg);
    color: var(--aviso-2-text);
    border: 1px solid var(--aviso-2-border);
}

.badge-vencida {
    background: var(--vencida-bg);
    color: var(--vencida-text);
    border: 1px solid var(--vencida-border);
}

.badge-bloqueada {
    background: var(--bloqueada-bg);
    color: var(--bloqueada-text);
    border: 1px solid var(--bloqueada-border);
}

.badge-admin {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
    color: var(--primary-dark);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* ========================================
   DASHBOARD CARDS
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-card h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.stat-card .value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.stat-card .change {
    font-size: 0.875rem;
    color: var(--success);
    font-weight: 600;
}

/* ========================================
   ALERTAS MODERNOS
   ======================================== */

.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: var(--success-dark);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger-dark);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning);
    color: var(--warning-dark);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--info);
    color: var(--info-dark);
}

/* ========================================
   BREADCRUMBS
   ======================================== */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: var(--gray-400);
}

/* ========================================
   LOADING & SKELETON
   ======================================== */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(99, 102, 241, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   RESPONSIVO
   ======================================== */

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    nav ul {
        flex-direction: column;
        width: 100%;
    }
    
    nav a {
        width: 100%;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    table {
        font-size: 0.875rem;
    }
    
    th, td {
        padding: 0.75rem;
    }
}

/* ========================================
   ANIMAÇÕES
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s ease-out;
}

/* ========================================
   UTILITÁRIOS
   ======================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.font-bold { font-weight: 700; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }