/* ========================================
   Auth Pages - Signup, Signin, Forgot Password
   ======================================== */

:root {
    /* Dark Theme Colors */
    --dark-bg: #0A1628;
    --dark-bg-secondary: #132238;
    --dark-card: #1A2942;
    --dark-card-hover: #22345A;
    --dark-text: #FFFFFF;
    --dark-text-muted: #8B9BB3;
    --dark-border: #2C3E5E;
    
    /* Accent Colors */
    --accent-pink: #E94E8C;
    --accent-cyan: #4EC9E9;
    --accent-teal: #3DD598;
    --accent-orange: #FF9A56;
    --accent-purple: #9B6AFF;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #E94E8C 0%, #9B6AFF 100%);
    --gradient-secondary: linear-gradient(135deg, #4EC9E9 0%, #3DD598 100%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Border Radius */
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 32px rgba(233, 78, 140, 0.3);
}

.dark-theme {
    --bg: var(--dark-bg);
    --bg-secondary: var(--dark-bg-secondary);
    --text: var(--dark-text);
    --text-muted: var(--dark-text-muted);
    --border: var(--dark-border);
}

/* ========================================
   Auth Container Layout
   ======================================== */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg-secondary) 100%);
}

/* ========================================
   Branding Section (Left)
   ======================================== */

.auth-branding {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl);
    background: radial-gradient(circle at 20% 30%, rgba(61, 213, 152, 0.12), transparent 45%),
                radial-gradient(circle at 75% 60%, rgba(78, 201, 233, 0.12), transparent 50%),
                linear-gradient(135deg, #0A1628 0%, #132238 100%);
    position: relative;
    overflow: hidden;
}

.auth-branding::before {
    content: '';
    position: absolute;
    inset: -40px;
    background-image: radial-gradient(rgba(61, 213, 152, 0.18) 1px, transparent 1px);
    background-size: 110px 110px;
    opacity: 0.45;
    filter: blur(0.2px);
}

.auth-branding::after {
    content: '';
    position: absolute;
    inset: -60px;
    background: radial-gradient(circle at 65% 35%, rgba(233, 78, 140, 0.16), transparent 55%),
                radial-gradient(circle at 30% 75%, rgba(155, 106, 255, 0.12), transparent 60%);
    opacity: 0.6;
}

.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.branding-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 600px;
}

.branding-logo {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.branding-subtitle {
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0;
    opacity: 0.9;
}

/* ========================================
   Form Section (Right)
   ======================================== */

.auth-form-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl);
    background: var(--dark-bg-secondary);
}

.form-wrapper {
    width: 100%;
    max-width: 420px;
}

.form-wrapper h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text);
}

.form-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

/* ========================================
   Form Styles
   ======================================== */

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

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input:not([type="checkbox"]) {
    padding: var(--space-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(26, 41, 66, 0.5);
    color: var(--text);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:not([type="checkbox"]):focus {
    outline: none;
    border-color: var(--accent-pink);
    background: rgba(26, 41, 66, 0.8);
    box-shadow: 0 0 0 3px rgba(233, 78, 140, 0.2);
}

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

/* Password Input Wrapper */

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    width: 100%;
}

.password-toggle {
    position: absolute;
    right: var(--space-sm);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

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

.password-requirements {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Checkbox Styles */

.form-group.checkbox {
    flex-direction: row;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

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

.form-group.checkbox label {
    margin: 0;
    text-transform: none;
    letter-spacing: normal;
    font-size: 0.9rem;
    cursor: pointer;
}

/* Error Messages */

.error-message {
    font-size: 0.8rem;
    color: #FF6B6B;
    display: none;
    margin-top: -0.5rem;
}

.form-group.error input {
    border-color: #FF6B6B;
    background: rgba(255, 107, 107, 0.1);
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary {
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-auth {
    background: var(--gradient-primary);
    color: white;
    width: 100%;
    margin-top: var(--space-sm);
}

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

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

/* ========================================
   Alerts
   ======================================== */

.alert {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin: var(--space-md) 0;
    display: none;
}

.alert-success {
    background: rgba(61, 213, 152, 0.1);
    border: 1px solid var(--accent-teal);
    color: var(--accent-teal);
}

.alert-error {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid #FF6B6B;
    color: #FF6B6B;
}

.alert-info {
    background: rgba(78, 201, 233, 0.1);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
}

/* ========================================
   Links
   ======================================== */

.auth-link {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: var(--space-lg);
}

.auth-link a {
    color: var(--accent-pink);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.auth-link a:hover {
    color: var(--accent-cyan);
    text-decoration: underline;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-branding {
        display: none;
    }

    .auth-form-container {
        min-height: 100vh;
    }
}

@media (max-width: 600px) {
    .auth-container {
        padding: var(--space-md);
    }

    .auth-form-container {
        padding: var(--space-md);
    }

    .form-wrapper {
        max-width: 100%;
    }

    .form-wrapper h2 {
        font-size: 1.5rem;
    }

    .branding-logo {
        font-size: 2rem;
    }

    .btn-auth {
        padding: 0.75rem var(--space-md);
    }
}

/* ========================================
   Loading State
   ======================================== */

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

.btn-auth.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: var(--space-sm);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}