/* PSD Appointments Authentication Styles
 * Brand Colors: Dark #0a0a1a, Cyan #00E0FF, Orange #FF7A00
 */

:root {
    /* PSD Brand Colors */
    --psd-dark: #0a0a1a;
    --psd-dark-secondary: #121228;
    --psd-cyan: #00E0FF;
    --psd-cyan-dim: rgba(0, 224, 255, 0.1);
    --psd-cyan-glow: rgba(0, 224, 255, 0.3);
    --psd-orange: #FF7A00;
    --psd-orange-dim: rgba(255, 122, 0, 0.1);
    --psd-orange-glow: rgba(255, 122, 0, 0.3);
    
    /* Semantic Colors */
    --bg-primary: #0a0a1a;
    --bg-secondary: #121228;
    --bg-tertiary: #1a1a3e;
    --bg-input: rgba(255, 255, 255, 0.05);
    --bg-input-hover: rgba(255, 255, 255, 0.08);
    --bg-card: rgba(18, 18, 40, 0.95);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.5);
    --text-placeholder: rgba(255, 255, 255, 0.3);
    
    /* Accent Colors */
    --accent-primary: var(--psd-cyan);
    --accent-secondary: var(--psd-orange);
    
    /* Status Colors */
    --error: #ff4757;
    --error-bg: rgba(255, 71, 87, 0.1);
    --success: #2ed573;
    --success-bg: rgba(46, 213, 115, 0.1);
    --warning: #ffa502;
    --warning-bg: rgba(255, 165, 2, 0.1);
    
    /* Borders */
    --border-default: rgba(255, 255, 255, 0.1);
    --border-focus: var(--psd-cyan);
    --border-error: var(--error);
    
    /* Shadows */
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow-cyan: 0 0 20px var(--psd-cyan-glow);
    --shadow-glow-orange: 0 0 20px var(--psd-orange-glow);
    
    /* Gradients */
    --gradient-brand: linear-gradient(135deg, var(--psd-cyan) 0%, var(--psd-orange) 100%);
    --gradient-card: linear-gradient(180deg, var(--bg-card) 0%, rgba(18, 18, 40, 0.98) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, var(--psd-cyan-dim) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, var(--psd-orange-dim) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: backgroundPulse 10s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Container */
.auth-container {
    width: 100%;
    max-width: 440px;
    animation: fadeInUp 0.6s ease-out;
}

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

/* Card */
.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
}

/* Brand Header */
.brand-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.logo-psd {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.logo-app {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: -1px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 400;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.input-icon {
    position: absolute;
    left: var(--space-md);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
}

.input-wrapper input,
.input-wrapper select {
    width: 100%;
    padding: 14px var(--space-md) 14px 48px;
    background: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

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

.input-wrapper input:hover,
.input-wrapper select:hover {
    background: var(--bg-input-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.input-wrapper input:focus,
.input-wrapper select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--psd-cyan-dim);
}

.input-wrapper input:focus + .input-icon,
.input-wrapper input:focus ~ .input-icon {
    color: var(--accent-primary);
}

.input-wrapper input.error {
    border-color: var(--error);
    background: var(--error-bg);
}

.input-wrapper select {
    appearance: none;
    cursor: pointer;
}

/* Password Toggle */
.toggle-password {
    position: absolute;
    right: var(--space-md);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--text-muted);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.toggle-password svg {
    width: 20px;
    height: 20px;
}

/* Field Errors */
.field-error {
    font-size: 0.75rem;
    color: var(--error);
    min-height: 18px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.field-error.visible {
    opacity: 1;
}

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

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    position: relative;
}

.checkbox-wrapper input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    background: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checkmark::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 2px;
    transform: scale(0);
    transition: transform var(--transition-fast);
}

.checkbox-wrapper input:checked + .checkmark {
    border-color: var(--accent-primary);
    background: var(--psd-cyan-dim);
}

.checkbox-wrapper input:checked + .checkmark::after {
    transform: scale(1);
}

.checkbox-wrapper input:focus + .checkmark {
    box-shadow: 0 0 0 3px var(--psd-cyan-dim);
}

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

.checkbox-wrapper.terms .checkbox-label a {
    color: var(--accent-primary);
    text-decoration: none;
}

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

.forgot-link {
    font-size: 0.875rem;
    color: var(--accent-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.forgot-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 14px var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary {
    background: var(--accent-primary);
    color: var(--psd-dark);
}

.btn-primary:hover:not(:disabled) {
    background: #33e6ff;
    box-shadow: var(--shadow-glow-cyan);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-input);
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.btn-link {
    background: none;
    color: var(--accent-primary);
    padding: var(--space-sm);
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-loading {
    display: flex;
    align-items: center;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

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

/* Alerts */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.alert-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-error {
    background: var(--error-bg);
    border: 1px solid var(--error);
    color: #ff6b7a;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success);
    color: #6ee7b7;
}

.alert-warning {
    background: var(--warning-bg);
    border: 1px solid var(--warning);
    color: #fcd34d;
}

/* Divider */
.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--space-lg) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

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

/* Auth Links */
.auth-links {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-default);
}

.auth-links p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.auth-links a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.back-link svg {
    width: 16px;
    height: 16px;
}

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

/* Security Footer */
.security-footer {
    margin-top: var(--space-xl);
    text-align: center;
}

.security-text {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.75rem;
}

.security-text svg {
    width: 14px;
    height: 14px;
    color: var(--accent-primary);
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-xl);
    gap: var(--space-xs);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-input);
    border: 1px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.step.active .step-number,
.step.completed .step-number {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--psd-dark);
}

.step.completed .step-number {
    background: var(--success);
    border-color: var(--success);
}

.step-connector {
    width: 40px;
    height: 2px;
    background: var(--border-default);
    position: relative;
}

.step-connector::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: var(--accent-primary);
    transition: width var(--transition-slow);
}

/* Step Forms */
.step-form {
    display: none;
}

.step-form.active {
    display: flex;
}

/* Password Strength Meter */
.password-strength-meter {
    margin-top: var(--space-xs);
}

.strength-bar {
    height: 4px;
    background: var(--border-default);
    border-radius: 2px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.strength-bar::before {
    content: '';
    display: block;
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width var(--transition-normal), background var(--transition-normal);
}

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

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

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

.strength-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.password-requirements {
    list-style: none;
    margin-top: var(--space-sm);
    padding: 0;
    display: grid;
    gap: var(--space-xs);
}

.password-requirements li {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.password-requirements li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--border-default);
    transition: background var(--transition-fast);
}

.password-requirements li.met {
    color: var(--success);
}

.password-requirements li.met::before {
    background: var(--success);
}

/* Success/Error Steps */
.success-step,
.step-panel {
    display: none;
    text-align: center;
}

.step-panel.active {
    display: block;
}

.success-icon,
.error-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon {
    background: var(--success-bg);
    color: var(--success);
}

.success-icon svg {
    width: 32px;
    height: 32px;
}

.error-icon {
    background: var(--error-bg);
    color: var(--error);
}

.error-icon svg {
    width: 32px;
    height: 32px;
}

.success-step h2,
.step-panel h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.success-message {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.error-message {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.email-tips {
    text-align: left;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-xl);
}

.email-tips h4 {
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.email-tips ul {
    list-style: none;
    padding: 0;
}

.email-tips li {
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.email-tips li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.form-actions .btn-secondary {
    flex: 0 0 auto;
}

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

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 480px) {
    .auth-card {
        padding: var(--space-xl);
    }
    
    .logo-psd,
    .logo-app {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn-secondary {
        order: 2;
    }
}