/* ===================================================
   LOGIN PAGE - DESIGN SYSTEM CONSISTENTE
   Layout moderno split-screen com animações
=================================================== */

:root {
    /* Cores - Consistente com o sistema */
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #EEF2FF;
    --success: #10B981;
    --success-light: #ECFDF5;
    --warning: #F59E0B;
    --warning-light: #FFFBEB;
    --danger: #EF4444;
    --danger-light: #FEF2F2;
    --info: #3B82F6;
    --info-light: #DBEAFE;
    
    /* Escala de cinzas */
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    
    /* Espaçamentos */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 12px -2px 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);
    
    /* Bordas */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transições */
    --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================
   BASE E RESET
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.login-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* =========================
   LAYOUT PRINCIPAL
========================= */
.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    width: 100%;
}

/* =========================
   SEÇÃO DE BRANDING
========================= */
.brand-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: var(--space-8);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.brand-content {
    max-width: 500px;
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.brand-content.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.logo-wrapper {
    margin-bottom: var(--space-8);
    text-align: center;
}

.logo {
    max-width: 180px;
    height: auto;
    animation: fadeInScale 0.6s ease both;
}

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

.brand-text {
    text-align: center;
    color: white;
    margin-bottom: var(--space-8);
}

.brand-text h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-4);
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.brand-text p {
    font-size: 1.125rem;
    opacity: 0.9;
    font-weight: 400;
}

/* Features List */
.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    margin-top: var(--space-8);
}

.feature-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(8px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
}

.feature-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    color: white;
}

.feature-text strong {
    font-size: 1rem;
    font-weight: 600;
}

.feature-text span {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Decoração de fundo */
.brand-decoration {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0.1;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    background: white;
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -100px;
    animation: float 15s ease-in-out infinite;
    animation-delay: -5s;
}

.circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 25s ease-in-out infinite;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(20px, -20px); }
    50% { transform: translate(-15px, 15px); }
    75% { transform: translate(15px, 10px); }
}

/* =========================
   SEÇÃO DE LOGIN
========================= */
.login-section {
    background: white;
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.login-card {
    width: 100%;
    max-width: 440px;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

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

/* Card Header */
.card-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.card-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: var(--space-2);
    letter-spacing: -0.025em;
}

.card-header p {
    font-size: 1rem;
    color: var(--gray-600);
}

/* =========================
   FORMULÁRIO
========================= */
.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-label i {
    color: var(--primary);
    font-size: 1rem;
}

/* Input Wrapper */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: var(--space-4);
    padding-right: 48px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--gray-900);
    background: white;
    transition: all var(--transition);
    font-family: inherit;
}

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

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

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

.form-input.valid {
    border-color: var(--success);
}

.form-input.valid:focus {
    box-shadow: 0 0 0 4px var(--success-light);
}

.form-input.invalid {
    border-color: var(--danger);
}

.form-input.invalid:focus {
    box-shadow: 0 0 0 4px var(--danger-light);
}

/* Input Icon */
.input-icon {
    position: absolute;
    right: var(--space-4);
    color: var(--gray-400);
    font-size: 1.25rem;
    pointer-events: none;
    transition: color var(--transition);
}

.form-input:focus ~ .input-icon {
    color: var(--primary);
}

/* Toggle Password */
.toggle-password {
    position: absolute;
    right: var(--space-3);
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.toggle-password i {
    font-size: 1.125rem;
}

/* Invalid Feedback */
.invalid-feedback {
    display: none;
    font-size: 0.813rem;
    color: var(--danger);
    margin-top: var(--space-1);
}

.was-validated .form-input:invalid ~ .invalid-feedback {
    display: block;
}

/* =========================
   OPÇÕES DO FORMULÁRIO
========================= */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-text {
    font-size: 0.875rem;
    color: var(--gray-700);
    font-weight: 500;
}

.forgot-link {
    font-size: 0.875rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

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

/* =========================
   BOTÃO SUBMIT
========================= */
.btn-submit {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    transition: all var(--transition);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

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

.btn-submit:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-text {
    transition: opacity var(--transition);
}

.btn-icon {
    font-size: 1.25rem;
    transition: all var(--transition);
}

.btn-submit:hover .btn-icon {
    transform: translateX(4px);
}

.btn-loader {
    position: absolute;
    display: none;
    align-items: center;
    justify-content: center;
}

.btn-submit.loading .btn-loader {
    display: flex;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* =========================
   ALERTAS
========================= */
.alert-error {
    margin-top: var(--space-5);
    padding: var(--space-4);
    background: var(--danger-light);
    border: 1px solid var(--danger);
    border-left: 4px solid var(--danger);
    border-radius: var(--radius-md);
    display: flex;
    gap: var(--space-3);
    animation: slideDown 0.3s ease;
}

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

.alert-icon {
    font-size: 1.5rem;
    color: var(--danger);
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-content strong {
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--danger);
    margin-bottom: var(--space-1);
}

.alert-content p {
    font-size: 0.875rem;
    color: var(--gray-700);
    margin: 0;
}

/* =========================
   FOOTER DO CARD
========================= */
.card-footer {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.card-footer p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

.card-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.card-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* =========================
   COPYRIGHT
========================= */
.login-copyright {
    position: absolute;
    bottom: var(--space-4);
    text-align: center;
    width: 100%;
}

.login-copyright p {
    font-size: 0.813rem;
    color: var(--gray-500);
    margin: 0;
}

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

/* Tablets */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
    }
    
    .brand-section {
        display: none;
    }
    
    .login-section {
        padding: var(--space-6) var(--space-4);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .login-card {
        max-width: 100%;
    }
    
    .card-header h2 {
        font-size: 1.75rem;
    }
    
    .brand-text h1 {
        font-size: 2rem;
    }
    
    .features-list {
        gap: var(--space-4);
    }
    
    .feature-item {
        padding: var(--space-3);
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
}

/* Mobile pequeno */
@media (max-width: 480px) {
    .login-section {
        padding: var(--space-4) var(--space-3);
    }
    
    .card-header {
        margin-bottom: var(--space-6);
    }
    
    .card-header h2 {
        font-size: 1.5rem;
    }
    
    .form-input {
        padding: var(--space-3);
    }
    
    .btn-submit {
        padding: var(--space-3) var(--space-5);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* =========================
   ACESSIBILIDADE
========================= */
.form-input:focus,
.btn-submit:focus,
.toggle-password:focus,
.forgot-link:focus {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* Redução de movimento */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Alto contraste */
@media (prefers-contrast: high) {
    .form-input {
        border-width: 2px;
    }
    
    .alert-error {
        border-width: 2px;
    }
}

/* =========================
   IMPRESSÃO
========================= */
@media print {
    .brand-section,
    .login-copyright,
    .card-footer {
        display: none;
    }
    
    .login-section {
        padding: 0;
    }
    
    .login-card {
        box-shadow: none;
    }
}

/* Scroll suave */
html {
    scroll-behavior: smooth;
}