/**
 * Auth Pages Styles - 认证页面样式
 * Login, Register, Forgot Password
 */

/* Auth Container */
.auth-body {
    min-height: 100vh;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
}

.auth-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
}

.auth-container {
    flex: 1;
    padding: 20px;
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
    overflow-y: auto;
}

/* Logo */
.auth-logo {
    text-align: center;
    margin-bottom: 40px;
}

.auth-logo svg,
.auth-logo img {
    width: 80px;
    height: 80px;
}

.auth-logo-small svg,
.auth-logo-small img {
    width: 60px;
    height: 60px;
}

.auth-logo img {
    object-fit: contain;
}

.auth-logo h1 {
    font-size: 28px;
    margin-top: 16px;
    background: linear-gradient(135deg, var(--douyin-cyan), var(--douyin-pink));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-logo-small h1 {
    font-size: 24px;
    margin-top: 12px;
}

/* Form */
.auth-form {
    width: 100%;
}

.form-group {
    margin-bottom: 20px;
}

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

.form-control {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    border-color: var(--douyin-pink);
}

.form-control::placeholder {
    color: var(--text-disabled);
}

/* Error Message */
.error-msg {
    background: rgba(254, 44, 85, 0.2);
    border: 1px solid rgba(254, 44, 85, 0.5);
    color: #ff6b6b;
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
}

/* Success Message */
.success-msg {
    background: rgba(37, 244, 238, 0.2);
    border: 1px solid rgba(37, 244, 238, 0.5);
    color: var(--douyin-cyan);
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
}

/* Auth Button */
.btn-auth {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--douyin-pink), #ff6b6b);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(254, 44, 85, 0.3);
}

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

/* Forgot Password Link */
.forgot-link {
    display: block;
    text-align: right;
    margin-top: 12px;
    color: var(--text-tertiary);
    font-size: 14px;
    text-decoration: none;
}

.forgot-link:hover {
    color: var(--text-primary);
}

/* Divider */
.auth-divider {
    display: flex;
    align-items: center;
    margin: 30px 0;
    color: var(--text-disabled);
    font-size: 14px;
}

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

.auth-divider span {
    padding: 0 16px;
}

/* Social Login */
.social-login {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.social-btn svg {
    width: 24px;
    height: 24px;
    fill: var(--text-primary);
}

/* Register/Login Link */
.auth-link {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 14px;
}

.auth-link a {
    color: var(--douyin-pink);
    text-decoration: none;
    font-weight: 500;
}

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

/* Terms */
.auth-terms {
    font-size: 12px;
    color: var(--text-disabled);
    text-align: center;
    margin: 20px 0;
    line-height: 1.6;
}

.auth-terms a {
    color: var(--douyin-pink);
    text-decoration: none;
}

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

.password-strength-fill {
    height: 100%;
    width: 0%;
    transition: width 0.3s, background 0.3s;
}

.strength-weak { width: 33%; background: #ff4757; }
.strength-medium { width: 66%; background: #ffa502; }
.strength-strong { width: 100%; background: #2ed573; }

/* Lang Switch */
.lang-switch {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.lang-switch:hover {
    background: rgba(255, 255, 255, 0.15);
}