:root {
    /* Paleta de Cores */
    --primary-color: #2D4059;
    --secondary-color: #EA5455;
    --accent-color: #F07B3F;
    --dark-bg: #1A1A2E;
    --light-bg: #F8F9FA;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --border-color: #E8EBF0;
    --success-color: #2ECC71;
    --error-color: #E74C3C;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #2D4059 0%, #1A1A2E 100%);
    --gradient-accent: linear-gradient(135deg, #F07B3F 0%, #EA5455 100%);
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16);
    
    /* Tipografia */
    --font-display: 'Crimson Pro', serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Transições */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--light-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== LOGIN CONTAINER ===== */
.login-container {
    display: flex;
    min-height: 100vh;
}

/* ===== LOGIN SIDE (LEFT) ===== */
.login-side {
    flex: 1;
    position: relative;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    overflow: hidden;
}

.login-side::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-50px, 50px) rotate(180deg); }
}

.login-side-overlay {
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.login-side-content {
    position: relative;
    z-index: 1;
    max-width: 500px;
    color: white;
    animation: slideInLeft 0.8s ease;
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 3rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    box-shadow: var(--shadow-lg);
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    color: white;
    letter-spacing: -0.5px;
}

.welcome-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.welcome-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 3rem;
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition-base);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-display);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

/* ===== LOGIN FORM CONTAINER (RIGHT) ===== */
.login-form-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: white;
}

.login-form-wrapper {
    width: 100%;
    max-width: 480px;
    animation: fadeIn 0.8s ease;
}

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

/* Mobile Logo */
.mobile-logo {
    display: none;
    text-align: center;
    margin-bottom: 2rem;
}

.mobile-logo .logo-text {
    color: var(--primary-color);
}

.form-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.form-title {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== FORM STYLES ===== */
.login-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.form-label i {
    font-size: 1.1rem;
    color: var(--accent-color);
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.1rem;
    pointer-events: none;
    z-index: 1;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition-base);
    background: var(--light-bg);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 4px rgba(45, 64, 89, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition-base);
}

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

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-right: 0.5rem;
    cursor: pointer;
    border: 2px solid var(--border-color);
    border-radius: 4px;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.forgot-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-base);
}

.forgot-link:hover {
    color: var(--secondary-color);
}

/* Submit Button */
.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-submit:hover::before {
    left: 100%;
}

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

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

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 1rem;
}

/* Social Login */
.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn-social {
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-social:hover {
    border-color: var(--primary-color);
    background: var(--light-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-social i,
.btn-social svg {
    font-size: 1.25rem;
}

/* Register Link */
.register-link {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.register-link a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition-base);
}

.register-link a:hover {
    color: var(--secondary-color);
}

/* Footer */
.login-footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin: 0;
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideDown 0.3s ease;
}

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

.alert i {
    font-size: 1.25rem;
}

.alert-success {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

.alert-warning {
    background: rgba(255, 212, 96, 0.1);
    color: #F39C12;
    border-left: 4px solid #F39C12;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 991px) {
    .login-side {
        display: none;
    }
    
    .mobile-logo {
        display: block;
    }
    
    .login-form-container {
        flex: 1;
    }
}

@media (max-width: 767px) {
    .login-container {
        min-height: 100vh;
    }
    
    .login-form-container {
        padding: 1.5rem;
    }
    
    .form-title {
        font-size: 1.875rem;
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
    
    .form-options {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .login-form-wrapper {
        max-width: 100%;
    }
    
    .form-title {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== LOADING STATE ===== */
.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loader {
    display: inline-flex !important;
    align-items: center;
    gap: 0.5rem;
}

/* ===== ACCESSIBILITY ===== */
.form-control:focus-visible,
.btn-submit:focus-visible,
.btn-social:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== ANIMATIONS ===== */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.5s;
}