/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores principais */
    --primary-color: #0A4D8C;
    --primary-dark: #083A6B;
    --primary-light: #00B4D8;
    --secondary-color: #FFD700;
    
    /* Cores de texto */
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    --text-white: #FFFFFF;
    
    /* Cores de fundo */
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-gray: #E9ECEF;
    
    /* Cores de estado */
    --success-color: #28A745;
    --error-color: #DC3545;
    --warning-color: #FFC107;
    --info-color: #17A2B8;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* Bordas */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-full: 9999px;
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Transições */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

/* Container */
.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

/* Landing Page */
.landing-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.landing-content {
    text-align: center;
    color: var(--text-white);
}

.brand-section {
    margin-bottom: var(--spacing-2xl);
}

.logo-icon {
    font-size: 80px;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.brand-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.brand-subtitle {
    font-size: 18px;
    opacity: 0.95;
    font-weight: 400;
}

.illustration {
    margin: var(--spacing-2xl) 0;
}

.beach-scene {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    font-size: 48px;
}

.sun { animation: rotate 20s linear infinite; }
.wave { animation: wave 2s ease-in-out infinite; }
.umbrella { animation: sway 3s ease-in-out infinite; }

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes wave {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(10px); }
}

@keyframes sway {
    0%, 100% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
}

.features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
    padding: 0 var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
}

.feature-icon {
    font-size: 32px;
}

.feature-text {
    font-size: 16px;
    font-weight: 500;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
}

.seller-link {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.seller-link p {
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    opacity: 0.9;
}

.seller-link a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: opacity var(--transition-fast);
}

.seller-link a:hover {
    opacity: 0.8;
}

/* Auth Card */
.auth-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.4s ease;
}

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

/* Auth Header */
.auth-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.back-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background: var(--bg-light);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.back-button:hover {
    background: var(--bg-gray);
    transform: translateX(-2px);
}

.logo-small {
    font-size: 32px;
}

/* Auth Title */
.auth-title {
    margin-bottom: var(--spacing-xl);
}

.auth-title h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.auth-title p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Progress Indicator */
.progress-indicator {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 0 0 auto;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background: var(--bg-gray);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    transition: all var(--transition-base);
}

.progress-step.active .step-number {
    background: var(--primary-color);
    color: var(--text-white);
    transform: scale(1.1);
}

.progress-step.completed .step-number {
    background: var(--success-color);
    color: var(--text-white);
}

.step-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.progress-step.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

.progress-line {
    flex: 1;
    height: 2px;
    background: var(--bg-gray);
    margin: 0 var(--spacing-sm);
    position: relative;
    top: -10px;
}

/* Form */
.auth-form {
    margin-bottom: var(--spacing-lg);
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid var(--bg-gray);
    border-radius: var(--border-radius-sm);
    background: var(--bg-white);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(10, 77, 140, 0.1);
}

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

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

.form-error {
    display: block;
    font-size: 13px;
    color: var(--error-color);
    margin-top: var(--spacing-xs);
    min-height: 18px;
}

/* Password Input */
.password-input-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

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

/* Password Strength */
.password-strength {
    margin-top: var(--spacing-sm);
}

.strength-bar {
    height: 4px;
    background: var(--bg-gray);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    transition: all var(--transition-base);
    border-radius: var(--border-radius-full);
}

.strength-fill.weak {
    width: 33%;
    background: var(--error-color);
}

.strength-fill.medium {
    width: 66%;
    background: var(--warning-color);
}

.strength-fill.strong {
    width: 100%;
    background: var(--success-color);
}

.strength-text {
    font-size: 13px;
    font-weight: 500;
}

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

/* Password Requirements */
.password-requirements {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius-sm);
}

.requirements-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.requirements-list {
    list-style: none;
}

.requirement {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.req-icon {
    font-size: 16px;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.requirement.met {
    color: var(--success-color);
}

.requirement.met .req-icon {
    color: var(--success-color);
}

.requirement.met .req-icon::before {
    content: "✓";
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Account Type Selection */
.account-type-selection {
    margin-bottom: var(--spacing-xl);
}

.selection-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.account-type-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.account-type-card {
    position: relative;
    display: block;
    padding: var(--spacing-lg);
    border: 2px solid var(--bg-gray);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.account-type-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.account-type-card input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.account-type-card input[type="radio"]:checked + .card-content {
    color: var(--primary-color);
}

.account-type-card input[type="radio"]:checked ~ .card-check {
    opacity: 1;
}

.account-type-card input[type="radio"]:checked {
    & ~ * {
        border-color: var(--primary-color);
    }
}

.account-type-card:has(input:checked) {
    border-color: var(--primary-color);
    background: rgba(10, 77, 140, 0.05);
}

.card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-sm);
}

.card-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
}

.card-check {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 24px;
    height: 24px;
    border-radius: var(--border-radius-full);
    background: var(--primary-color);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--bg-light);
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

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

.btn-loader {
    display: inline-flex;
}

/* Spinner */
.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spinner-circle {
    stroke: currentColor;
    stroke-linecap: round;
    stroke-dasharray: 50;
    stroke-dashoffset: 25;
}

/* Form Navigation */
.form-navigation {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.form-navigation .btn {
    flex: 1;
}

/* Alert */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-xl) 0;
    color: var(--text-light);
    font-size: 14px;
}

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

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

/* Auth Footer */
.auth-footer {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Links */
.link-primary {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

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

.link-secondary {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

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

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .brand-title {
        font-size: 36px;
    }
    
    .beach-scene {
        font-size: 36px;
        gap: var(--spacing-md);
    }
    
    .auth-title h1 {
        font-size: 24px;
    }
    
    .form-navigation {
        flex-direction: column;
    }
}