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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-input: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px 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);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== BACKGROUND ===== */
.register-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.2;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-1);
    top: -200px;
    left: -200px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-2);
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.shape-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* ===== HEADER ===== */
.register-header {
    position: relative;
    z-index: 10;
    padding: 1.5rem 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.register-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.login-prompt {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.btn-login {
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

/* ===== MAIN CONTENT ===== */
.register-main {
    position: relative;
    z-index: 1;
    padding: 3rem 0;
    min-height: calc(100vh - 100px);
}

.register-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

/* ===== LEFT SIDE - INFO ===== */
.register-info {
    position: sticky;
    top: 2rem;
}

.info-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.benefit-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.benefit-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-text h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.benefit-text p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.testimonial-box {
    background: var(--dark-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-rating {
    color: #fbbf24;
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.testimonial-author {
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* ===== RIGHT SIDE - FORM ===== */
.register-form-container {
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-xl);
}

/* Progress Steps */
.progress-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3rem;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--dark-input);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.step.completed .step-number {
    background: var(--secondary-color);
    color: white;
}

.step-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.step.active .step-label {
    color: var(--primary-light);
}

.step-line {
    height: 2px;
    background: var(--dark-input);
    flex: 1;
    margin: 0 1rem;
    margin-bottom: 1.5rem;
}

.step.active ~ .step-line {
    background: var(--dark-input);
}

/* Form Steps */
.form-step {
    display: none;
}

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

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

.form-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-label i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--dark-input);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

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

.form-error {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.25rem;
}

.form-hint {
    display: block;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

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

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease;
}

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

/* Password Strength */
.password-strength {
    margin-top: 0.5rem;
    height: 4px;
    background: var(--dark-input);
    border-radius: 2px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

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

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

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

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.checkbox-text a {
    color: var(--primary-light);
    text-decoration: none;
}

.checkbox-text a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-next {
    width: 100%;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
}

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

/* Success Step */
.success-content {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2.5rem;
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.success-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.success-message {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.success-info {
    background: var(--dark-input);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    text-align: left;
}

.info-item:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-item strong {
    display: block;
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.success-note {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 1.5rem;
}

/* Alert Toast */
.alert-toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--dark-card);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.alert-toast.show {
    transform: translateX(0);
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.alert-toast.success .alert-icon {
    color: var(--secondary-color);
}

.alert-toast.error .alert-icon {
    color: var(--danger-color);
}

.alert-toast.warning .alert-icon {
    color: var(--warning-color);
}

/* Responsive */
@media (max-width: 1024px) {
    .register-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .register-info {
        position: static;
    }
}

@media (max-width: 768px) {
    .register-header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .info-title {
        font-size: 2rem;
    }
    
    .register-form-container {
        padding: 1.5rem;
    }
    
    .progress-steps {
        margin-bottom: 2rem;
    }
    
    .step-label {
        display: none;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .alert-toast {
        right: 1rem;
        left: 1rem;
    }
}