/* ==========================================
   登入/註冊頁 - 專屬樣式
   ========================================== */

body {
    margin: 0;
    padding: 0;
    background: var(--light-bg);
}

/* Left Panel */
.left-panel {
    background-image:
        linear-gradient(rgba(44, 36, 27, 0.6), rgba(44, 36, 27, 0.6)),
        url('https://images.unsplash.com/photo-1532968961962-8a0cb3a2d4f5?w=1200&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.welcome-message {
    color: white;
    text-align: center;
    padding: 2rem;
}

.welcome-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.welcome-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.95;
    line-height: 1.8;
}

/* Form Container */
.form-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.logo-text {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-bg);
    margin-bottom: 0.5rem;
}

.logo-subtitle {
    font-size: 0.875rem;
    color: #999;
    margin-bottom: 2rem;
}

/* Tab Buttons (Auth) */
.auth-tab-button {
    position: relative;
    padding: 0.75rem 2rem;
    background: transparent;
    border: none;
    color: #999;
    font-size: 1.125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans TC', sans-serif;
}

.auth-tab-button.active {
    color: var(--dark-bg);
    font-weight: 600;
}

.auth-tab-button.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px 3px 0 0;
}

/* Input Fields */
.input-field {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e5e5e5;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    font-family: 'Noto Sans TC', sans-serif;
    box-sizing: border-box;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(234, 176, 135, 0.1);
}

/* Submit Button */
.submit-button {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans TC', sans-serif;
}

.submit-button:hover {
    background-color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(234, 176, 135, 0.3);
}

/* Social Login Buttons */
.social-button {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid #e5e5e5;
    border-radius: 8px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
    font-family: 'Noto Sans TC', sans-serif;
}

.social-button:hover {
    border-color: var(--primary-color);
    background-color: rgba(234, 176, 135, 0.05);
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #e5e5e5;
}

.divider span {
    padding: 0 1rem;
    color: #999;
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .auth-tab-button {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}