/* ============================================
   文件: css/style.css
   说明: 全局样式 - 支持 Grid 网格瀑布流
   ============================================ */

:root {
    --primary: #e67e22;
    --primary-dark: #d35400;
    --primary-light: #f39c12;
    --bg-primary: #f0f2f5;
    --bg-secondary: #e8eaed;
    --card-bg: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background: #b0b4ba;
}

/* ===== 导航栏 ===== */
.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.92);
}

.nav-container {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}
.nav-brand .brand-icon {
    font-size: 26px;
}
.nav-brand .brand-name {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-user {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: var(--bg-secondary);
    border-radius: 20px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: 0 4px 14px rgba(230, 126, 34, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(230, 126, 34, 0.35);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-outline:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 8px;
}

.btn-danger {
    background: #e74c3c;
    color: #fff;
}
.btn-danger:hover {
    background: #c0392b;
}

/* ===== 主内容 ===== */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}
.page-header h2 {
    font-size: 26px;
    font-weight: 700;
    margin: 0;
}
.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin: 4px 0 0;
}

/* ===== 网格瀑布流（按行排列） ===== */
.waterfall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    padding: 4px 0;
}

.movie-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}
.movie-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.card-image {
    width: 100%;
    aspect-ratio: 2/3;
    background: var(--bg-secondary);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.movie-card:hover .card-image img {
    transform: scale(1.03);
}

.placeholder-poster {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d2d44, #1a1a2e);
    color: rgba(255, 255, 255, 0.5);
    font-size: 42px;
    gap: 6px;
}
.placeholder-poster .placeholder-title {
    font-size: 14px;
    text-align: center;
    padding: 0 12px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.card-body {
    padding: 14px 16px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.card-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    font-size: 13px;
    color: var(--text-secondary);
}
.card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

/* ===== 空状态 ===== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}
.empty-state .empty-icon {
    font-size: 64px;
    display: block;
    margin-bottom: 16px;
}
.empty-state h3 {
    font-size: 24px;
    margin: 0 0 8px;
}
.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ===== 响应式调整 ===== */
@media (max-width: 900px) {
    .main-content {
        padding: 16px 14px 40px;
    }
    .navbar {
        padding: 0 16px;
        height: 58px;
    }
    .nav-brand .brand-name {
        font-size: 18px;
    }
}

@media (max-width: 600px) {
    .waterfall {
        gap: 12px;
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    .movie-card {
        border-radius: 10px;
    }
    .card-body {
        padding: 10px 12px 12px;
    }
    .card-title {
        font-size: 14px;
    }
    .card-meta {
        font-size: 11px;
        gap: 4px 10px;
    }
    .page-header h2 {
        font-size: 20px;
    }
    .nav-actions .btn-sm {
        font-size: 12px;
        padding: 4px 10px;
    }
    .nav-user {
        font-size: 12px;
        padding: 2px 10px;
    }
    .navbar {
        padding: 0 12px;
        height: 52px;
    }
    .nav-brand .brand-name {
        font-size: 16px;
    }
}

@media (max-width: 420px) {
    .waterfall {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 10px;
    }
    .nav-actions .btn-sm {
        font-size: 11px;
        padding: 3px 8px;
    }
    .nav-user {
        font-size: 11px;
        padding: 2px 8px;
    }
}
/* ===== 下拉菜单 ===== */
.nav-dropdown {
    position: relative;
    display: inline-block;
}
.nav-dropdown .dropbtn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-dropdown .dropbtn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.nav-dropdown .dropbtn .arrow {
    font-size: 10px;
    margin-left: 2px;
    transition: transform 0.2s;
}
.nav-dropdown:hover .dropbtn .arrow {
    transform: rotate(180deg);
}

.nav-dropdown .dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: var(--card-bg);
    min-width: 180px;
    border-radius: 12px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    padding: 6px 0;
    z-index: 200;
    overflow: hidden;
    animation: dropdownFade 0.2s ease;
}
.nav-dropdown:hover .dropdown-content,
.nav-dropdown .dropdown-content.show {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.nav-dropdown .dropdown-content a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.15s;
    border-left: 3px solid transparent;
}
.nav-dropdown .dropdown-content a:hover {
    background: var(--bg-secondary);
    border-left-color: var(--primary);
}
.nav-dropdown .dropdown-content a .icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}
.nav-dropdown .dropdown-content .divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 12px;
}

/* 移动端适配 */
@media (max-width: 600px) {
    .nav-dropdown .dropdown-content {
        right: -8px;
        min-width: 160px;
    }
    .nav-dropdown .dropbtn {
        padding: 4px 10px;
        font-size: 13px;
    }
}
/* 下拉菜单 - 高亮当前页面 */
.nav-dropdown .dropdown-content a.active {
    background: var(--bg-secondary);
    border-left-color: var(--primary);
    font-weight: 600;
}
.avatar-circle {
    border-radius: 50%;
    object-fit: cover;
    vertical-align: middle;
}