/* Improved Custom Login and Registration Styles */
:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #eff6ff;
    --secondary-color: #10b981;
    --secondary-hover: #059669;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #d1d5db;
    --border-focus: #3b82f6;
    --error-color: #ef4444;
    --error-light: #fef2f2;
    --success-color: #10b981;
    --success-light: #ecfdf5;
    --warning-color: #f59e0b;
    --warning-light: #fffbeb;
    --background-color: #f5f5f5;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-sm: 8px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Main container */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: #f5f5f5;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.auth-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    padding: 40px 30px;
    text-align: center;
    color: white;
}

.register-card .auth-header {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-hover));
}

.auth-header h2 {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.auth-header p {
    margin: 0;
    font-size: 16px;
    opacity: 0.9;
}

/* Form */
.auth-form {
    padding: 30px;
}

.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-color);
}

.required {
    color: var(--error-color);
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 16px;
    background: var(--input-bg);
    transition: all 0.2s ease;
    font-family: inherit;
    box-sizing: border-box;
}

.input-group input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-group input.error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.input-group input.success {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Password wrapper */
.password-wrapper {
    position: relative;
    display: block;
    width: 100%;
}

.password-wrapper input {
    padding-right: 50px !important;
    width: 100%;
    display: block;
    margin: 0;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: color 0.2s ease;
    z-index: 10;
}

.password-toggle:hover {
    color: var(--text-color);
    background: rgba(0, 0, 0, 0.05);
}

/* Also add this to make sure input-group layout is correct */
.input-group {
    margin-bottom: 24px;
    display: block;
    width: 100%;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-color);
}

/* Checkbox */
.checkbox-group {
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    margin: 0;
    margin-right: 8px;
    width: 18px;
    height: 18px;
}

/* Submit button */
.submit-btn {
    width: 100%;
    padding: 14px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

.submit-btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.submit-btn .btn-loading {
    display: none;
}

.submit-btn.loading .btn-text {
    display: none;
}

.submit-btn.loading .btn-loading {
    display: inline;
}

.register-card .submit-btn {
    background: var(--secondary-color);
}

.register-card .submit-btn:hover {
    background: var(--secondary-hover);
}

/* Auth links */
.auth-links {
    margin-top: 24px;
    text-align: center;
}

.forgot-link {
    display: inline-block;
    margin-bottom: 16px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

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

.switch-form {
    margin: 0;
    font-size: 14px;
    color: var(--text-light);
}

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

.switch-form a:hover {
    text-decoration: underline;
}

/* Messages */
.auth-message {
    margin: 20px;
    padding: 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-align: center;
}

.auth-message.error {
    background: var(--error-light);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.auth-message.success {
    background: var(--success-light);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.auth-message.warning {
    background: var(--warning-light);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Field notes */
.field-note {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

/* Username status */
.username-status {
    margin-top: 8px;
    font-size: 12px;
    font-weight: 500;
    min-height: 16px;
}

.username-status.checking {
    color: var(--primary-color);
}

.username-status.available {
    color: var(--success-color);
}

.username-status.unavailable {
    color: var(--error-color);
}

/* Password strength */
.password-strength {
    margin-top: 8px;
}

.strength-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.strength-bar .strength-fill {
    height: 100%;
    width: 0;
    background: var(--error-color);
    transition: width 0.3s ease, background-color 0.3s ease;
    border-radius: 2px;
}

.strength-text {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    font-weight: 500;
    text-align: right;
}

/* Form errors */
.form-error {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--error-color);
    font-weight: 500;
}

/* Animations */
.shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Responsive */
@media (max-width: 480px) {
    .auth-container {
        padding: 10px;
    }
    
    .auth-header {
        padding: 30px 20px;
    }
    
    .auth-header h2 {
        font-size: 24px;
    }
    
    .auth-form {
        padding: 20px;
    }
    
    .input-group input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}