:root {
    /* === CORES PRINCIPAIS === */
    --primary-green: #2E7D32;
    --dark-green: #1B5E20;
    --light-green: #4CAF50;
    --accent-green: #8BC34A;
    --deep-black: #0A0A0A;
    --charcoal: #1C1C1C;
    --soft-white: #F8F8F8;
    --pure-white: #FFFFFF;
    
    /* === CORES SECUNDÁRIAS === */
    --gray-light: #CCCCCC;
    --gray-medium: #999999;
    --gray-dark: #666666;
    --success-green: #4CAF50;
    --warning-orange: #FF9800;
    --danger-red: #F44336;
    --info-blue: #2196F3;
    
    /* === TRANSPARÊNCIAS E SOBREPOSIÇÕES === */
    --muted-green: rgba(46, 125, 50, 0.1);
    --shadow-green: rgba(46, 125, 50, 0.3);
    --overlay-black: rgba(0, 0, 0, 0.7);
    --overlay-charcoal: rgba(28, 28, 28, 0.9);
    --glass-effect: rgba(255, 255, 255, 0.1);
    --border-green: rgba(46, 125, 50, 0.2);
    --highlight-green: rgba(46, 125, 50, 0.25);
    
    /* === GRADIENTES === */
    --gradient-green: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 50%, var(--primary-green) 100%);
    --gradient-dark: linear-gradient(135deg, var(--deep-black) 0%, var(--charcoal) 100%);
    --gradient-header: linear-gradient(135deg, var(--deep-black) 0%, var(--charcoal) 50%, var(--deep-black) 100%);
    --gradient-card: linear-gradient(135deg, var(--charcoal) 0%, var(--deep-black) 100%);
    --gradient-button: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    --gradient-button-hover: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
    --gradient-shine: linear-gradient(90deg, transparent 0%, var(--primary-green) 20%, var(--primary-green) 80%, transparent 100%);
    --gradient-radial: radial-gradient(circle at 20% 20%, var(--muted-green) 0%, transparent 50%);
    
    /* === SOMBRAS === */
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.2);
    --shadow-dark: 0 15px 40px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-green-light: 0 5px 15px var(--shadow-green);
    --shadow-green-medium: 0 8px 25px var(--shadow-green);
    --shadow-premium: 0 25px 50px rgba(0, 0, 0, 0.5);
    
    /* === TAMANHOS E ESPAÇAMENTOS === */
    --border-radius-small: 8px;
    --border-radius-medium: 10px;
    --border-radius-large: 15px;
    --border-radius-extra: 20px;
    --border-radius-round: 50%;
    
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 25px;
    --spacing-xxl: 30px;
    --spacing-3xl: 35px;
    --spacing-4xl: 40px;
    
    /* === TIPOGRAFIA === */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    --font-size-xs: 0.8rem;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.2rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.8rem;
    --font-size-4xl: 2.2rem;
    --font-size-5xl: 2.5rem;
    
    /* === TRANSIÇÕES === */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* === Z-INDEX === */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-sidebar-overlay: 9998;
    --z-sidebar: 9999;
    --z-toast: 10000;
}

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

html, body {
    height: 100%;
    width: 100%;
}

body {
    font-family: var(--font-primary);
    background: var(--gradient-dark);
    color: var(--soft-white);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 15% 20%, var(--muted-green) 0%, transparent 40%),
        radial-gradient(circle at 85% 80%, rgba(139, 195, 74, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(46, 125, 50, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundPulse 15s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ==================== MAIN CONTAINER ==================== */
.register-wrapper {
    min-height: 100vh;
    display: flex;
    position: relative;
    z-index: 1;
}

/* ==================== LEFT SIDE - BRANDING ==================== */
.register-brand-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-4xl);
    background: var(--gradient-header);
    position: relative;
    overflow: hidden;
}

.register-brand-side::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg at 50% 50%, 
        transparent 0deg, 
        var(--glass-effect) 90deg, 
        transparent 180deg, 
        var(--glass-effect) 270deg, 
        transparent 360deg
    );
    animation: rotateGlow 25s linear infinite;
}

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

.brand-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 500px;
}

.brand-logo {
    margin-bottom: var(--spacing-xxl);
}

.brand-logo h1 {
    font-family: var(--font-heading);
    font-size: var(--font-size-5xl);
    font-weight: 700;
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out;
}

.brand-tagline {
    font-size: var(--font-size-lg);
    color: var(--gray-light);
    margin-bottom: var(--spacing-xs);
    font-weight: 300;
    animation: fadeInUp 1s ease-out;
}

.brand-description {
    font-size: var(--font-size-sm);
    color: var(--gray-medium);
    font-weight: 400;
    animation: fadeInUp 1.2s ease-out;
}

.brand-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-4xl);
    animation: fadeInUp 1.4s ease-out;
}

.benefit-item {
    background: var(--glass-effect);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-green);
    border-radius: var(--border-radius-large);
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    text-align: left;
    transition: all var(--transition-smooth);
}

.benefit-item:hover {
    transform: translateX(5px);
    background: var(--highlight-green);
    box-shadow: var(--shadow-green-light);
}

.benefit-icon {
    width: 45px;
    height: 45px;
    min-width: 45px;
    background: var(--gradient-button);
    border-radius: var(--border-radius-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--pure-white);
}

.benefit-content h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--soft-white);
    margin-bottom: var(--spacing-xs);
}

.benefit-content p {
    font-size: var(--font-size-xs);
    color: var(--gray-medium);
    line-height: 1.5;
}

/* ==================== RIGHT SIDE - FORM ==================== */
.register-form-side {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl) var(--spacing-xxl);
    background: var(--charcoal);
    position: relative;
    overflow-y: auto;
}

.register-form-container {
    width: 100%;
    max-width: 520px;
    background: var(--gradient-card);
    border: 1px solid var(--border-green);
    border-radius: var(--border-radius-extra);
    padding: var(--spacing-4xl);
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
    animation: slideInRight 0.8s ease-out;
    margin: var(--spacing-xl) 0;
}

.register-form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-shine);
    opacity: 0.3;
    animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

/* Form Header */
.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.form-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--soft-white);
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-medium);
    font-weight: 400;
}

/* Alert Messages */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-medium);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideDown 0.4s ease-out;
}

.alert i {
    font-size: var(--font-size-lg);
}

.alert-error {
    background: linear-gradient(135deg, rgba(244, 67, 54, 0.1) 0%, rgba(244, 67, 54, 0.2) 100%);
    color: var(--danger-red);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.alert-success {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(76, 175, 80, 0.2) 100%);
    color: var(--success-green);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.5s ease-out backwards;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.15s; }
.form-group:nth-child(3) { animation-delay: 0.2s; }
.form-group:nth-child(4) { animation-delay: 0.25s; }
.form-group:nth-child(5) { animation-delay: 0.3s; }

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--soft-white);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-medium);
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
    z-index: 2;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 45px;
    background: var(--deep-black);
    border: 2px solid var(--border-green);
    border-radius: var(--border-radius-medium);
    color: var(--soft-white);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green);
    background: rgba(10, 10, 10, 0.8);
    box-shadow: 0 0 0 4px var(--muted-green);
}

.form-control:focus + .input-icon {
    color: var(--primary-green);
}

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

.form-control.error {
    border-color: var(--danger-red);
}

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

/* Password Strength Indicator */
.password-strength {
    margin-top: var(--spacing-xs);
    padding-left: 45px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.strength-weak {
    color: var(--danger-red);
}

.strength-medium {
    color: var(--warning-orange);
}

.strength-strong {
    color: var(--success-green);
}

/* Password Toggle */
.toggle-password {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-medium);
    cursor: pointer;
    padding: var(--spacing-xs);
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
    z-index: 2;
}

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

/* Submit Button */
.btn-submit {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-button);
    color: var(--pure-white);
    border: none;
    border-radius: var(--border-radius-medium);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-green-medium);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.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 0.6s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-premium);
    background: var(--gradient-button-hover);
}

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

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

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

.btn-submit i {
    margin-right: var(--spacing-sm);
}

/* Form Footer */
.form-footer {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--gray-medium);
}

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

.form-footer a:hover {
    color: var(--light-green);
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ==================== RESPONSIVE DESIGN ==================== */

/* Tablets e telas médias */
@media (max-width: 1024px) {
    .register-brand-side {
        padding: var(--spacing-3xl);
    }
    
    .brand-logo h1 {
        font-size: var(--font-size-4xl);
    }
    
    .register-form-container {
        padding: var(--spacing-3xl);
    }
}

/* Mobile e tablets pequenos */
@media (max-width: 768px) {
    .register-wrapper {
        flex-direction: column;
    }
    
    .register-brand-side {
        padding: var(--spacing-3xl) var(--spacing-xl);
        min-height: auto;
    }
    
    .brand-logo h1 {
        font-size: var(--font-size-3xl);
    }
    
    .brand-tagline {
        font-size: var(--font-size-base);
    }
    
    .brand-benefits {
        margin-top: var(--spacing-xl);
    }
    
    .benefit-item {
        padding: var(--spacing-md);
    }
    
    .benefit-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: var(--font-size-base);
    }
    
    .register-form-side {
        padding: var(--spacing-xxl) var(--spacing-lg);
    }
    
    .register-form-container {
        padding: var(--spacing-xxl);
        margin: 0;
    }
    
    .form-title {
        font-size: var(--font-size-2xl);
    }
}

/* Mobile pequeno */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .register-brand-side {
        padding: var(--spacing-xxl) var(--spacing-lg);
    }
    
    .brand-logo h1 {
        font-size: var(--font-size-2xl);
    }
    
    .brand-tagline {
        font-size: var(--font-size-sm);
    }
    
    .brand-description {
        font-size: var(--font-size-xs);
    }
    
    .brand-benefits {
        gap: var(--spacing-md);
    }
    
    .register-form-side {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .register-form-container {
        padding: var(--spacing-xl);
        border-radius: var(--border-radius-large);
    }
    
    .form-title {
        font-size: var(--font-size-xl);
    }
    
    .form-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .form-control {
        font-size: var(--font-size-sm);
        padding: 12px 12px 12px 40px;
    }
    
    .btn-submit {
        padding: 12px var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

/* Landscape mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .register-brand-side {
        display: none;
    }
    
    .register-form-side {
        min-height: 100vh;
    }
}

/* Desktop grande */
@media (min-width: 1440px) {
    .brand-logo h1 {
        font-size: 3rem;
    }
    
    .register-form-container {
        max-width: 600px;
        padding: 50px;
    }
    
    .form-title {
        font-size: 2rem;
    }
}

/* Scroll personalizado para o form side */
.register-form-side::-webkit-scrollbar {
    width: 8px;
}

.register-form-side::-webkit-scrollbar-track {
    background: var(--deep-black);
}

.register-form-side::-webkit-scrollbar-thumb {
    background: var(--primary-green);
    border-radius: 4px;
}

.register-form-side::-webkit-scrollbar-thumb:hover {
    background: var(--light-green);
}