/* Importar fonte Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Variáveis CSS globais */
:root {
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --light-blue: #60a5fa;
    --dark-blue: #1e3a8a;
    --accent-blue: #06b6d4;
    --gradient-blue: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray: #64748b;
    --dark-gray: #334155;
    --black: #0f172a;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-out;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset e base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--black);
    overflow-x: hidden;
    max-width: 100vw;
    position: relative;
}

/* Prevenir scroll quando modal está aberto */
body.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    max-width: 100vw;
    height: 100%;
}

/* Utilitários */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--white);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray);
}

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

a:hover {
    color: var(--light-blue);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-icon {
    padding: 12px;
    border-radius: 50%;
    width: 48px;
    height: 48px;
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Formulários */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--white);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.form-input:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    background: rgba(255, 255, 255, 0.1);
}

.form-input::placeholder {
    color: var(--gray);
}

/* Grid responsivo */
.grid {
    display: grid;
    gap: 20px;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Layout principal */
.main-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.active-users-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.12);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-md);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
}

.active-users-floating {
    position: fixed;
    left: 20px;
    bottom: 20px;
    z-index: 1200;
}

.active-users-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 rgba(16, 185, 129, 0.45);
    animation: activeUsersPulse 1.8s ease-in-out infinite;
    flex-shrink: 0;
}

.active-users-label {
    color: #e2e8f0;
    white-space: nowrap;
}

@keyframes activeUsersPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.45);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

@media (max-width: 768px) {
    .active-users-floating {
        left: 12px;
        bottom: 12px;
    }

    .active-users-chip {
        padding: 7px 10px;
        font-size: 0.8rem;
    }
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    text-decoration: none;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-item {
    color: var(--white);
    font-weight: 500;
    transition: var(--transition-fast);
    padding: 8px 16px;
    border-radius: var(--border-radius);
}

.nav-item:hover {
    color: var(--light-blue);
    background: rgba(255, 255, 255, 0.1);
}

/* Main content */
.main-content {
    flex: 1;
    padding-top: 80px;
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-left-color: var(--secondary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 32px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

/* Alertas */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-weight: 500;
    border-left: 4px solid;
}

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

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

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

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

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-blue);
    border-radius: 4px;
}

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

/* Responsividade */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        gap: 16px;
    }
    
    .nav-item {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .modal {
        padding: 24px;
        margin: 10px;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 16px;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.875rem;
    }
    
    .form-input {
        padding: 12px 14px;
    }
    
    .card {
        padding: 16px;
    }
}