/* 让 hidden 属性永远生效（防止被 display 覆盖） */
[hidden] {
    display: none !important;
}

/* ===== 全局重置 & 变量 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 莫兰迪低饱和配色 · 温暖陶土棕系 */
    --primary: #b08968;
    --primary-dark: #8a6d52;
    --primary-light: #cdb198;
    --bg: #f5f0ea;
    --card-bg: #fbf9f6;
    --text: #4a4642;
    --text-light: #8c847d;
    --neutral: #ebe4dc;
    --neutral-dark: #d4cdc6;
    --shadow: 0 8px 30px rgba(120, 100, 80, 0.10);
    --radius: 18px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* 工具栏毛玻璃背景：同色系 + alpha（非改色） */
    --toolbar-bg: rgba(251, 249, 246, 0.75);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 0 20px 60px;
}

/* ===== 容器 ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
}

/* ===== 头部 ===== */
.header {
    padding: 40px 0 30px;
    text-align: center;
    position: relative;
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary));
    border-radius: 4px;
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 8px;
    letter-spacing: 0.3px;
}

.header p i {
    color: var(--primary);
    margin: 0 4px;
}

/* ===== 搜索 & 筛选栏 ===== */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px 24px;
    margin: 32px 0 40px;
    padding: 16px 28px;
    /* 改为半透明，backdrop-filter 才真正生效 */
    background: var(--toolbar-bg);
    border-radius: 60px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: var(--transition);
}

.toolbar:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.10);
}

.search-box {
    flex: 1 1 280px;
    display: flex;
    align-items: center;
    background: var(--bg);
    border-radius: 40px;
    padding: 0 18px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.search-box:focus-within {
    border-color: var(--primary-light);
    background: var(--card-bg);
}

.search-box i {
    color: var(--text-light);
    font-size: 1rem;
}

.search-box input {
    border: none;
    background: transparent;
    padding: 12px 14px;
    font-size: 1rem;
    width: 100%;
    outline: none;
    color: var(--text);
}

/* 输入框用 focus-within 的边框作为反馈，无需额外 outline */
.search-box input:focus-visible {
    outline: none;
}

.search-box input::placeholder {
    color: #b8b0a8;
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.filter-group span {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-right: 4px;
}

.filter-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 40px;
    background: var(--bg);
    color: var(--text);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.filter-btn:hover {
    background: var(--neutral);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-dark);
    box-shadow: 0 4px 14px rgba(176, 137, 104, 0.35);
}

.filter-btn.active:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== 菜谱网格 ===== */
.recipe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 10px;
}

/* ===== 菜谱卡片 ===== */
.recipe-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    /* 入场动画：CSS 驱动，--i 由 JS 内联设置 */
    animation: cardIn 0.4s ease backwards;
    animation-delay: calc(var(--i, 0) * 40ms);
}

@keyframes cardIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.recipe-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

/* 键盘焦点轮廓（仅键盘触发时显示） */
.recipe-card:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
}

.filter-btn:focus-visible,
.modal-close:focus-visible {
    outline: 2px solid var(--primary-dark);
    outline-offset: 3px;
}

.recipe-card-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
    background: var(--neutral);
    transition: transform 0.6s cubic-bezier(0.2, 0, 0.2, 1);
}

.recipe-card:hover .recipe-card-img {
    transform: scale(1.06);
}

.recipe-card-body {
    padding: 20px 22px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.recipe-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.recipe-card-tags span {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 4px 12px;
    border-radius: 40px;
    background: var(--neutral);
    color: var(--text-light);
}

.recipe-card-tags span.tag-category {
    background: var(--primary-light);
    color: #fff;
}

.recipe-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.3;
}

.recipe-card p {
    color: var(--text-light);
    font-size: 0.92rem;
    line-height: 1.5;
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recipe-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-light);
    border-top: 1px solid var(--neutral);
    padding-top: 14px;
    margin-top: 4px;
}

.recipe-card-meta i {
    margin-right: 5px;
    color: var(--primary);
}

.recipe-card-meta .time {
    display: flex;
    align-items: center;
}

.recipe-card-meta .difficulty {
    display: flex;
    align-items: center;
    gap: 2px;
}

.difficulty .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--neutral-dark);
    margin-left: 2px;
}

.difficulty .dot.filled {
    background: var(--primary);
}

/* ===== 空状态 ===== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 70px 20px;
    color: var(--text-light);
}

.empty-state i {
    font-size: 4rem;
    color: var(--neutral-dark);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.4rem;
    color: var(--text);
    margin-bottom: 6px;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: 20px;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    /* 顶部留出空间给绝对定位的关闭按钮 */
    padding: 60px 44px 44px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
    transform: scale(0.92) translateY(20px);
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    /* 作为关闭按钮的定位上下文 */
    position: relative;
    /* iOS Safari 阻止背景滚动穿透 */
    overscroll-behavior: contain;
    /* Firefox 滚动条样式 */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) var(--neutral);
}

.modal-overlay.open .modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-close {
    /* 改为绝对定位，不再用 sticky + float 的组合 */
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.modal-close:hover {
    background: #c0826a;
    color: #fff;
    transform: rotate(90deg);
}

.modal-img {
    width: 100%;
    /* 与卡片图统一 16:10，避免同一张图两处裁切不一致 */
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 20px;
    background: var(--neutral);
}

.modal h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.modal .modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 16px;
}

.modal .modal-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 40px;
    background: var(--neutral);
    color: var(--text-light);
}

.modal .modal-tags span.category-tag {
    background: var(--primary-light);
    color: #fff;
}

.modal .modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 32px;
    padding: 16px 0 20px;
    border-top: 1px solid var(--neutral);
    border-bottom: 1px solid var(--neutral);
    margin: 12px 0 20px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.modal .modal-meta i {
    color: var(--primary);
    width: 20px;
}

.modal .modal-section {
    margin-top: 20px;
}

.modal .modal-section h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal .modal-section h4 i {
    color: var(--primary);
}

.modal .modal-section ul,
.modal .modal-section ol {
    padding-left: 24px;
    line-height: 1.8;
    color: var(--text);
}

.modal .modal-section li {
    margin-bottom: 4px;
}

/* 滚动条美化：WebKit 系 */
.modal::-webkit-scrollbar {
    width: 6px;
}
.modal::-webkit-scrollbar-track {
    background: var(--neutral);
    border-radius: 10px;
}
.modal::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 10px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2.2rem;
    }

    .toolbar {
        border-radius: 28px;
        padding: 14px 20px;
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        flex: 1 1 auto;
    }

    .filter-group {
        justify-content: center;
    }

    .filter-btn {
        padding: 6px 16px;
        font-size: 0.8rem;
    }

    .recipe-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 20px;
    }

    .modal {
        padding: 56px 22px 28px;
    }

    .modal h2 {
        font-size: 1.6rem;
    }

    .modal .modal-meta {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .recipe-grid {
        grid-template-columns: 1fr;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    .toolbar {
        padding: 12px 16px;
    }
}

/* ===== 辅助 ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* 小徽标动画 */
.badge-pop {
    animation: pop 0.4s ease;
}

@keyframes pop {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ===== 尊重系统的"减少动态效果"偏好 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================================
   追加：操作栏
   ============================================================ */
.actions-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin: 0 0 16px;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 2px solid transparent;
    border-radius: 40px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    font-family: inherit;
}

.action-btn:hover {
    transform: translateY(-2px);
    background: var(--neutral);
}

.action-btn.action-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-dark);
}

.action-btn.action-primary:hover {
    background: var(--primary-dark);
}

.action-btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-danger:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
}

/* ============================================================
   追加：搜索联想
   ============================================================ */
.search-box {
    position: relative;
}

.search-suggestions {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    padding: 6px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 100;
}

.search-suggestions .suggestion-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.92rem;
    color: var(--text);
    transition: background 0.15s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.search-suggestions .suggestion-item:hover,
.search-suggestions .suggestion-item.active {
    background: var(--neutral);
}

.search-suggestions .suggestion-item i {
    color: var(--text-light);
    font-size: 0.8rem;
    width: 14px;
}

.search-suggestions .suggestion-item mark {
    background: transparent;
    color: var(--primary-dark);
    font-weight: 700;
}

.search-suggestions .suggestion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px 4px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-light);
    text-transform: uppercase;
}

.search-suggestions .suggestion-clear {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 6px;
    font-family: inherit;
}

.search-suggestions .suggestion-clear:hover {
    background: var(--neutral);
}

/* ============================================================
   追加：食材高亮
   ============================================================ */
.modal .modal-section li.ingredient {
    display: flex;
    align-items: baseline;
    gap: 6px;
    padding: 3px 0;
}

.modal .modal-section .ing-name {
    color: var(--text);
}

.modal .modal-section .ing-amount {
    color: var(--primary-dark);
    font-weight: 700;
    background: rgba(176, 137, 104, 0.12);
    padding: 2px 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    letter-spacing: 0.2px;
}

/* ============================================================
   追加：步骤时间按钮
   ============================================================ */
.step-hint {
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--text-light);
    margin-left: 4px;
}

button.step-timer {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border: 1px solid var(--primary-light);
    border-radius: 20px;
    background: rgba(176, 137, 104, 0.1);
    color: var(--primary-dark);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    margin: 0 2px;
    font-family: inherit;
}

button.step-timer:hover {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary);
}

button.step-timer:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* ============================================================
   追加：模态框操作按钮
   ============================================================ */
.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--neutral);
}

.btn-primary,
.btn-secondary,
.btn-danger {
    padding: 10px 22px;
    border-radius: 40px;
    border: 2px solid transparent;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-dark);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border-color: var(--neutral);
}

.btn-secondary:hover {
    background: var(--neutral);
}

.btn-danger {
    background: transparent;
    color: #b36049;
    border-color: #d8b0a5;
}

.btn-danger:hover {
    background: #b36049;
    color: #fff;
    border-color: #b36049;
}

/* ============================================================
   追加：表单模态框
   ============================================================ */
.form-modal {
    max-width: 640px;
}

.form-modal h2 {
    margin-bottom: 20px;
}

#recipeForm {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field > span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
}

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--neutral);
    border-radius: 10px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    resize: vertical;
    outline: none;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: var(--primary-light);
    background: var(--card-bg);
}

.form-field input:invalid:not(:placeholder-shown) {
    border-color: #d8b0a5;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 10px;
}

@media (max-width: 560px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   追加：计时器面板
   ============================================================ */
.timer-panel {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(120, 100, 80, 0.25);
    z-index: 1100;
    animation: timerIn 0.3s ease;
    min-width: 220px;
}

@keyframes timerIn {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}

.timer-panel .timer-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.timer-panel .timer-label {
    font-size: 0.78rem;
    color: var(--text-light);
    font-weight: 600;
}

.timer-panel .timer-time {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    font-variant-numeric: tabular-nums;
    letter-spacing: 1px;
}

.timer-panel .timer-close {
    background: var(--bg);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 0.9rem;
}

.timer-panel .timer-close:hover {
    background: var(--neutral);
    color: var(--text);
}

.timer-panel.ringing {
    animation: timerRing 0.6s ease-in-out infinite;
    background: #b36049;
}

.timer-panel.ringing .timer-label,
.timer-panel.ringing .timer-time,
.timer-panel.ringing .timer-close {
    color: #fff;
}

.timer-panel.ringing .timer-close {
    background: rgba(255, 255, 255, 0.2);
}

@keyframes timerRing {
    0%, 100% { transform: translateY(0) rotate(0); }
    25%      { transform: translateY(-4px) rotate(-2deg); }
    75%      { transform: translateY(-4px) rotate(2deg); }
}

@media (max-width: 480px) {
    .timer-panel {
        right: 12px;
        left: 12px;
        bottom: 12px;
        min-width: 0;
    }
}