/* 
 * 认证页面样式 (Auth CSS)
 * Refactored to use Unified Design System
 */

body, html {
    height: 100%;
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
    overflow-x: hidden;
    color: var(--color-text-primary);
}

.auth-container {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* 左侧品牌区域 */
.auth-sidebar {
    width: 40%;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%); /* Deep enterprise dark */
    color: #FFFFFF;
    padding: 60px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.auth-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(0, 86, 210, 0.15), transparent 70%);
    pointer-events: none;
}

.brand-header {
    margin-bottom: 60px;
    z-index: 1;
}

.auth-logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #FFFFFF, #94A3B8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-content {
    z-index: 1;
}

.brand-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.brand-slogan {
    font-size: 1.1rem;
    opacity: 0.8;
    margin-bottom: 40px;
    font-weight: 400;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
    font-size: 1rem;
    color: #E2E8F0;
}

.bullet {
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 50%;
    margin-right: 15px;
    box-shadow: 0 0 12px var(--color-accent);
}

/* 背景装饰 - 抽象波浪 */
.auth-bg-pattern {
    position: absolute;
    bottom: -150px;
    right: -150px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    border: 1px solid rgba(255,255,255,0.05);
}

/* 右侧表单区域 */
.auth-main {
    flex: 1;
    background-color: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.auth-form-wrapper {
    width: 100%;
    max-width: 440px;
    background-color: var(--color-bg-primary);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
}

.auth-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: 24px;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-align: center;
}

/* Tab 切换 */
.auth-tabs {
    display: flex;
    gap: 4px;
    background-color: var(--color-bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
    margin-bottom: 30px;
}

.tab-item {
    background: none;
    border: none;
    font-size: 0.9rem;
    padding: 8px;
    color: var(--color-text-secondary);
    cursor: pointer;
    position: relative;
    font-weight: 500;
    transition: all 0.2s;
    flex: 1;
    border-radius: var(--radius-sm);
    text-align: center;
}

.tab-item:hover {
    color: var(--color-text-primary);
}

.tab-item.active {
    color: var(--color-text-primary);
    background-color: #FFFFFF;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
    font-weight: 600;
}

.tab-item.active::after {
    display: none;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text-primary);
    transition: all 0.2s;
    background-color: var(--color-bg-primary);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 86, 210, 0.1);
}

.input-group {
    display: flex;
    gap: 8px;
}

.btn-verify {
    white-space: nowrap;
    padding: 0 16px;
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-verify:hover:not(:disabled) {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background-color: var(--color-accent-subtle);
}

.btn-verify:disabled {
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    cursor: not-allowed;
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 10px;
    font-size: 0.95rem;
    height: 40px; /* Aligned with Linear style */
}

.auth-tip {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-top: 16px;
    text-align: center;
}

.form-footer {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 24px;
}

.link-forget {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    text-decoration: none;
    transition: color 0.2s;
}

.link-forget:hover {
    color: var(--color-accent);
}

/* 底部其他方式 */
.auth-others {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
}

.other-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
    transition: all 0.2s;
}

.other-item:hover {
    color: var(--color-text-primary);
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    border: 1px solid var(--color-border);
}

.other-item:hover .icon-circle {
    background-color: #FFFFFF;
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* 响应式适配 */
@media (max-width: 900px) {
    .auth-sidebar {
        display: none;
    }
    .auth-main {
        width: 100%;
        background-color: var(--color-bg-primary);
    }
    .auth-form-wrapper {
        box-shadow: none;
        border: none;
        padding: 20px;
        max-width: 100%;
    }
}