/**
 * PreStaff Employee Authentication System
 * Unified Design System
 * Matches the original dark theme
 */

:root {
    --primary: #3b82f6;
    --primary-dark: #1e40af;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --gray: #64748b;
    --light: #f1f5f9;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #e2e8f0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
    max-width: 900px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.auth-brand {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.auth-brand h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.auth-brand p {
    font-size: 1.1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.auth-form {
    padding: 60px 40px;
    background: rgba(15, 23, 42, 0.8);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #e2e8f0;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    font-size: 1rem;
    color: #fff;
    transition: all 0.3s;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

.auth-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

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

.auth-link {
    text-align: center;
    margin-top: 20px;
    color: var(--gray);
    font-size: 0.95rem;
}

.auth-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

/* Alert Messages */
.alert {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid var(--success);
}

/* Password Strength */
.password-strength {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: all 0.3s;
}

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

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

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

.password-strength-text {
    font-size: 0.85rem;
    margin-top: 5px;
    color: var(--gray);
}

/* City Search Dropdown */
.city-search {
    position: relative;
}

.city-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border: 2px solid var(--primary);
    border-top: none;
    border-radius: 0 0 10px 10px;
    max-height: 200px;
    overflow-y: auto;
    display: none;
    z-index: 1000;
}

.city-dropdown.show {
    display: block;
}

.city-option {
    padding: 12px 15px;
    cursor: pointer;
    transition: background 0.2s;
    color: #e2e8f0;
}

.city-option:hover {
    background: rgba(59, 130, 246, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-brand {
        padding: 40px 30px;
    }

    .auth-brand h1 {
        font-size: 2rem;
    }

    .auth-form {
        padding: 40px 30px;
    }
}

/* Required indicator */
.required {
    color: var(--danger);
}