/* =====================================================
   ESTILOS DE AUTENTICAÇÃO
   Sistema de Login/Registro - Conexão que Converte
   ===================================================== */

/* Variáveis específicas para autenticação */
:root {
    /* Cores de autenticação */
    --auth-primary: #2563eb;
    --auth-primary-dark: #1d4ed8;
    --auth-secondary: #10b981;
    --auth-accent: #f59e0b;
    --auth-danger: #ef4444;
    --auth-success: #22c55e;
    --auth-warning: #f59e0b;
    
    /* Gradientes de autenticação */
    --auth-gradient-primary: linear-gradient(135deg, var(--auth-primary) 0%, var(--auth-primary-dark) 100%);
    --auth-gradient-secondary: linear-gradient(135deg, var(--auth-secondary) 0%, var(--auth-primary) 100%);
    --auth-gradient-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Sombras específicas */
    --auth-shadow-card: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --auth-shadow-input: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --auth-shadow-button: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
    
    /* Timing de animações */
    --auth-transition-fast: 200ms ease-out;
    --auth-transition-normal: 300ms ease-out;
    --auth-transition-slow: 500ms ease-out;
}

/* Reset para páginas de autenticação */
.auth-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: var(--font-family);
    background: var(--auth-gradient-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
}

/* Background animado */
.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: float 20s infinite linear;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 60px;
    height: 60px;
    top: 20%;
    right: 10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 10%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 40px;
    height: 40px;
    bottom: 30%;
    right: 20%;
    animation-delay: -15s;
}

.shape-5 {
    width: 120px;
    height: 120px;
    top: 50%;
    left: 50%;
    animation-delay: -8s;
    transform: translate(-50%, -50%);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Botão voltar ao site */
.back-to-home {
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 100;
    animation: fadeInLeft 0.8s ease-out;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.9);
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--auth-transition-normal);
    box-shadow: var(--auth-shadow-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.back-btn:hover {
    background: var(--white);
    color: var(--auth-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.back-btn i {
    font-size: var(--font-size-sm);
    transition: transform var(--auth-transition-fast);
}

.back-btn:hover i {
    transform: translateX(-2px);
}

/* Container principal */
.auth-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: var(--spacing-lg);
}

/* Logo section */
.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease-out;
}

.auth-logo .logo-image {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.auth-logo h1 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.auth-logo p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

/* Card de autenticação */
.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--auth-shadow-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--auth-transition-slow);
}

.auth-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Header do card */
.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.auth-header p {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    line-height: 1.5;
}

/* Formulário */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.form-label i {
    color: var(--auth-primary);
    width: 16px;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--white);
    transition: all var(--auth-transition-fast);
    box-shadow: var(--auth-shadow-input);
}

.form-input:focus {
    outline: none;
    border-color: var(--auth-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input.error {
    border-color: var(--auth-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Container de senha */
.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: color var(--auth-transition-fast);
}

.password-toggle:hover {
    color: var(--auth-primary);
}

/* Indicador de força da senha */
.password-strength {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.strength-bar {
    flex: 1;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    transition: background-color var(--auth-transition-fast);
}

.strength-bar.weak { background: var(--auth-danger); }
.strength-bar.medium { background: var(--auth-warning); }
.strength-bar.strong { background: var(--auth-success); }

.strength-text {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

.strength-text.weak { color: var(--auth-danger); }
.strength-text.medium { color: var(--auth-warning); }
.strength-text.strong { color: var(--auth-success); }

/* Opções do formulário */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--spacing-md) 0;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--auth-transition-fast);
}

.checkbox-container input:checked + .checkmark {
    background: var(--auth-primary);
    border-color: var(--auth-primary);
}

.checkbox-container input:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--white);
    font-size: 12px;
}

.forgot-link {
    font-size: var(--font-size-sm);
    color: var(--auth-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--auth-transition-fast);
}

.forgot-link:hover {
    color: var(--auth-primary-dark);
    text-decoration: underline;
}

/* Botões de autenticação */
.auth-button {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--auth-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.auth-button.primary {
    background: var(--auth-gradient-primary);
    color: var(--white);
    box-shadow: var(--auth-shadow-button);
}

.auth-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px 0 rgba(37, 99, 235, 0.5);
}

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

.auth-button.secondary {
    background: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.auth-button.secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

.auth-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.button-loader {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.button-text {
    transition: opacity var(--auth-transition-fast);
}

.auth-button.loading .button-text {
    opacity: 0;
}

.auth-button.loading .button-loader {
    display: block;
}

/* Divisor */
.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.auth-divider span {
    padding: 0 var(--spacing-md);
    background: var(--white);
}

/* Footer do card */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-100);
}

.auth-footer p {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    line-height: 1.5;
}

.auth-footer .link {
    color: var(--auth-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer .link:hover {
    text-decoration: underline;
}

/* Mensagens de erro */
.input-error {
    font-size: var(--font-size-xs);
    color: var(--auth-danger);
    margin-top: var(--spacing-xs);
    opacity: 0;
    transform: translateY(-5px);
    transition: all var(--auth-transition-fast);
}

.input-error.show {
    opacity: 1;
    transform: translateY(0);
}

/* Mensagem de sucesso */
.success-message {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--auth-shadow-card);
    text-align: center;
    animation: fadeInScale 0.5s ease-out;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--auth-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.success-message h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.success-message p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-spinner {
    text-align: center;
    color: var(--white);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Estados de foco melhorados */
.form-input:focus,
.auth-button:focus,
.checkbox-container:focus-within,
.password-toggle:focus {
    outline: 2px solid var(--auth-primary);
    outline-offset: 2px;
}

/* Responsividade */
@media (max-width: 768px) {
    .auth-container {
        max-width: 100%;
        padding: var(--spacing-md);
    }
    
    .auth-card {
        padding: var(--spacing-xl);
    }
    
    .auth-logo h1 {
        font-size: var(--font-size-xl);
    }
    
    .auth-header h2 {
        font-size: var(--font-size-xl);
    }
    
    .form-options {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .auth-logo .logo-image {
        height: 50px;
    }
    
    .floating-shapes .shape {
        display: none;
    }
    
    .back-to-home {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
    }
    
    .back-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
}

/* Estados de hover melhorados */
@media (hover: hover) {
    .form-input:hover {
        border-color: var(--gray-300);
    }
    
    .auth-button:hover {
        transform: translateY(-2px);
    }
    
    .checkbox-container:hover .checkmark {
        border-color: var(--auth-primary);
    }
}

/* Modo escuro (opcional) */
@media (prefers-color-scheme: dark) {
    .auth-body {
        background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    }
    
    .auth-card {
        background: var(--gray-800);
        border-color: var(--gray-700);
    }
    
    .auth-header h2 {
        color: var(--white);
    }
    
    .auth-header p {
        color: var(--gray-300);
    }
    
    .form-input {
        background: var(--gray-700);
        border-color: var(--gray-600);
        color: var(--white);
    }
    
    .form-input::placeholder {
        color: var(--gray-400);
    }
    
    .form-label {
        color: var(--gray-300);
    }
}

/* Melhorias de acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shapes .shape {
        animation: none;
    }
}

/* Estados de validação visual */
.form-input.valid {
    border-color: var(--auth-success);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-group.valid .form-label i {
    color: var(--auth-success);
}

/* Indicadores de carregamento */
.form-input.loading {
    background-image: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}