/* ============================================
   DESIGN SYSTEM MODERNO - PALETA E VARIÁVEIS
   ============================================ */

:root {
    /* Cores Primárias Modernas */
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    
    /* Cores Secundárias */
    --secondary: #EC4899;
    --secondary-dark: #DB2777;
    --secondary-light: #F472B6;
    
    /* Cores de Status */
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --error: #EF4444;
    --error-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;
    
    /* Neutros */
    --dark: #1F2937;
    --dark-light: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --light: #F8FAFC;
    --white: #FFFFFF;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #6366F1, #8B5CF6);
    --gradient-secondary: linear-gradient(135deg, #EC4899, #F43F5E);
    --gradient-success: linear-gradient(135deg, #10B981, #14B8A6);
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Espaçamento */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transições */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Tipografia */
    --font-sans: 'Inter', 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-bg: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* ============================================
   MODO ESCURO
   ============================================ */

[data-theme="dark"] {
    --dark: #F8FAFC;
    --dark-light: #E2E8F0;
    --gray-600: #E2E8F0;
    --gray-500: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-300: #64748B;
    --gray-200: #334155;
    --gray-100: #1E293B;
    --light: #0F172A;
    --white: #1E293B;
}

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

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ============================================
   TIPOGRAFIA MODERNA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

h1 {
    font-size: 2.5rem;
    margin: var(--spacing-xl) 0 var(--spacing-lg) 0;
}

h2 {
    font-size: 1.875rem;
    margin: var(--spacing-lg) 0 var(--spacing-md) 0;
    color: var(--primary);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary);
}

h3 {
    font-size: 1.375rem;
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
}

h4 {
    font-size: 1.125rem;
    margin: var(--spacing-md) 0 var(--spacing-xs) 0;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

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

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

/* ============================================
   COMPONENTES PRINCIPAIS
   ============================================ */

/* CARDS - Glassmorphism */
.card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

[data-theme="dark"] .card {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(100, 116, 139, 0.2);
}

/* BOTÕES MODERNOS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

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

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
}

.btn-secondary:hover {
    box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--dark);
    border: 2px solid transparent;
}

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

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.05rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* INPUTS MODERNOS */
input, select, textarea {
    font-family: var(--font-sans);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    background-color: var(--white);
    color: var(--dark);
}

input::placeholder, textarea::placeholder {
    color: var(--gray-400);
}

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

[data-theme="dark"] input, 
[data-theme="dark"] select, 
[data-theme="dark"] textarea {
    background-color: var(--gray-100);
    border-color: var(--gray-300);
}

/* LABELS */
label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--dark);
    font-size: 0.9rem;
}

/* ============================================
   GRID E LAYOUT
   ============================================ */

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

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.flex {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-column {
    flex-direction: column;
    align-items: flex-start;
}

/* ============================================
   BADGES E STATUS
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.badge-success {
    background: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-error {
    background: var(--error-light);
    color: var(--error);
}

.badge-info {
    background: var(--info-light);
    color: var(--info);
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

thead {
    background: var(--gradient-primary);
    color: white;
}

th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    letter-spacing: 0.5px;
}

td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

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

tbody tr:hover {
    background-color: var(--gray-100);
}

tbody tr:last-child td {
    border-bottom: 2px solid var(--primary);
}

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

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

.animate-in {
    animation: slideInUp var(--transition-normal);
}

.animate-fade {
    animation: fadeIn var(--transition-normal);
}

/* ============================================
   UTILIDADES
   ============================================ */

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

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

.text-muted {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-lg {
    font-size: 1.125rem;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.mt-auto {
    margin-top: auto;
}

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ============================================
   RESPONSIVIDADE
   ============================================ */

@media (max-width: 1024px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    .grid-4 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}

@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.375rem; }
    h3 { font-size: 1.125rem; }
    
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr; }
    
    .flex { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    
    .btn { padding: var(--spacing-sm) var(--spacing-md); font-size: 0.875rem; }
    input, select, textarea { padding: var(--spacing-sm) var(--spacing-md); }
}

/* ============================================
   BOTÃO DARK MODE FIXO
   ============================================ */
#theme-toggle {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    z-index: 9999 !important;
    padding: 8px 16px !important;
    border-radius: 50px !important;
    font-size: 0.9rem !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    cursor: pointer !important;
}

#theme-toggle:hover {
    transform: scale(1.05);
    transition: all 0.3s ease;
}

/* Barra de Progresso */
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    width: 100%;
    animation: barLoading 1.5s infinite ease-in-out;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

@keyframes barLoading {
    0% {
        opacity: 0.5;
        transform: scaleX(0.5);
    }
    50% {
        opacity: 1;
        transform: scaleX(1);
    }
    100% {
        opacity: 0.5;
        transform: scaleX(0.5);
    }
}

/* Dark mode */
:root[data-theme="dark"] .progress-bar-container {
    background: var(--gray-800);
}

:root[data-theme="dark"] .progress-bar-fill {
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}