/* ==========================================================================
   Journey — 旅遊筆記平台視覺設計系統
   設計風格：日系手帳 (Japanese Traveler's Notebook / Journal)
   重點：紙張質感背景、低飽和溫暖色系、毛玻璃與微互動動畫
   ========================================================================== */

:root {
    /* 主色調：柿紅與溫柔粉藕 */
    --color-primary: #D97863;
    --color-primary-hover: #C56450;
    --color-secondary: #E9B8A7;
    --color-accent: #D6A84B;

    /* 背景與表面：輕量紙張質感與微灰咖底 */
    --color-background: #FAF6F1;
    --color-surface: #FFFDFC;
    --color-border: #E9DED5;
    --color-border-hover: #D8CACE;

    /* 文字色階 */
    --color-text-primary: #423936;
    --color-text-secondary: #766864;
    --color-text-muted: #AA9B95;

    /* 狀態提示配色 (Hint Styles) */
    --color-info: #7896A8;
    --color-info-bg: #EEF4F6;
    --color-info-border: #B7CAD3;

    --color-success: #789B7A;
    --color-success-bg: #EFF5EF;
    --color-success-border: #BFD0C0;

    --color-warning: #D5A345;
    --color-warning-bg: #FAF5E7;
    --color-warning-border: #E5D39A;

    --color-danger: #C95F5F;
    --color-danger-bg: #FAEEEE;
    --color-danger-border: #DFB6B6;

    /* 五大行程類型專屬色系 (Item Types) */
    /* 景點 (Place - 溫暖柿紅) */
    --color-place-bg: #FFF8F5;
    --color-place-border: #F0D6CE;
    --color-place-text: #D97863;

    /* 事件 (Event - 薰衣丁香紫) */
    --color-event-bg: #F8F6FA;
    --color-event-border: #DDD4E8;
    --color-event-text: #8E78A8;

    /* 交通 (Transport - 灰藍青石) */
    --color-transport-bg: #F5F8FA;
    --color-transport-border: #D1E0E8;
    --color-transport-text: #7896A8;

    /* 用餐 (Meal - 暖金稻穗) */
    --color-meal-bg: #FAFAF2;
    --color-meal-border: #EADCAE;
    --color-meal-text: #D5A345;

    /* 住宿 (Lodging - 抹茶森綠) */
    --color-lodging-bg: #F5F8F5;
    --color-lodging-border: #D0E0D2;
    --color-lodging-text: #789B7A;

    /* 圓角系統 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* 溫暖光影層次 (棕褐色調陰影) */
    --shadow-sm: 0 2px 8px rgba(66, 57, 54, 0.05);
    --shadow-md: 0 8px 24px rgba(66, 57, 54, 0.08);
    --shadow-lg: 0 16px 40px rgba(66, 57, 54, 0.12);
    --shadow-floating: 0 12px 32px rgba(217, 120, 99, 0.18);

    /* 空間變數 */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
}

/* ==========================================================================
   全域基礎設定與紙張質感
   ========================================================================== */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background-color: var(--color-background);
    /* 日系手帳細緻點狀紙張紋理 */
    background-image: radial-gradient(circle, rgba(170, 155, 149, 0.22) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: fixed;
    color: var(--color-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
    line-height: 1.6;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
    font: inherit;
}

/* ==========================================================================
   按鈕與表單控制元件 (與微互動)
   ========================================================================== */
button {
    border: 0;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    padding: 10px 18px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(217, 120, 99, 0.25);
    transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(217, 120, 99, 0.32);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(217, 120, 99, 0.2);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
    box-shadow: none;
}

input,
select,
textarea {
    width: 100%;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text-primary);
    padding: 10px 14px;
    transition: border-color 180ms ease, box-shadow 180ms ease;
    outline: none;
}

/*
 * iOS Safari 修正：date / datetime-local 有內建最小寬度（由日期文字決定），會撐破父容器。
 * 不能用 -webkit-appearance:none（會破壞原生 picker UI）。
 * 這裡給全局加 max-width + min-width:0 防止溢出，
 * 父容器則要另加 overflow:hidden（見 .form-grid label）。
 */
input[type="date"],
input[type="datetime-local"] {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(217, 120, 99, 0.15);
}

label {
    display: grid;
    gap: var(--space-2);
    color: var(--color-text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    line-height: 1.25;
    font-weight: 700;
    color: var(--color-text-primary);
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

/* ==========================================================================
   版頭與版尾 (Glassmorphism 導航欄)
   ========================================================================== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 253, 252, 0.82);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    transition: box-shadow 250ms ease;
}

.app-header .container,
.app-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
}

.brand {
    color: var(--color-primary);
    font-weight: 800;
    font-size: 1.35rem;
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform 180ms ease;
}

.brand:hover {
    transform: scale(1.02);
}

.brand::before {
    content: "📓";
    font-size: 1.25rem;
}

.content {
    padding: var(--space-6) 0;
}

.app-footer {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    border-top: 1px solid var(--color-border);
    background: rgba(250, 246, 241, 0.6);
}

/* ==========================================================================
   幽靈按鈕與圖示按鈕
   ========================================================================== */
.ghost-button,
.icon-button,
summary.ghost-button {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    box-shadow: none;
}

summary.ghost-button {
    border-radius: var(--radius-sm);
    padding: 10px 18px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: all 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

summary.ghost-button::-webkit-details-marker {
    display: none;
}

.ghost-button:hover,
.icon-button:hover,
summary.ghost-button:hover {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    min-width: 150px;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 6px;
    z-index: 50;
}

.dropdown-content button.ghost-button {
    border: none;
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    width: 100%;
    text-align: left;
    justify-content: flex-start;
    box-shadow: none;
    transform: none;
}

.dropdown-content button.ghost-button:hover {
    background: rgba(217, 120, 99, 0.08);
    color: var(--color-primary);
    transform: none;
    box-shadow: none;
}

.icon-button {
    display: inline-grid;
    place-items: center;
    width: 40px;
    height: 40px;
    padding: 0;
    font-size: 1.3rem;
    border-radius: 50%;
}

/* ==========================================================================
   卡片與版面區塊 (登入面板、工作區、彈窗、抽屜)
   ========================================================================== */
.login-panel,
.workspace,
.modal,
.drawer {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.login-panel {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-6);
    align-items: center;
    min-height: 440px;
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
}

/* 手帳裝飾邊條 */
.login-panel::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 8px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.login-panel h1 {
    max-width: 620px;
    margin-bottom: var(--space-4);
    font-size: clamp(1.8rem, 3.8vw, 3.2rem);
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.login-form {
    display: grid;
    gap: var(--space-4);
    background: #fff;
    padding: var(--space-5);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.workspace {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    min-height: 720px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.trip-sidebar {
    border-right: 1px solid var(--color-border);
    padding: var(--space-5);
    background: rgba(250, 246, 241, 0.4);
}

.timeline-panel {
    min-width: 0;
    padding: var(--space-5);
    background: var(--color-surface);
    position: relative;
}

/* ==========================================================================
   行程總覽頁面 (/trip) 與 收藏清單網格佈局
   ========================================================================== */
.trips-overview {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.overview-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.overview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-3);
}

.trip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.trip-grid:empty::before {
    content: attr(data-empty);
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-8) var(--space-4);
    color: var(--color-muted);
    background: rgba(250, 246, 241, 0.5);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-lg);
    font-weight: 500;
}

.trip-grid .trip-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: var(--space-2);
    min-height: 92px;
    padding: var(--space-5);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: left;
    transition: all 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.trip-grid .trip-card strong {
    font-size: 1.15rem;
    color: var(--color-text-primary);
}

.trip-grid .trip-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
    background: #fffdfb;
}

/* ==========================================================================
   景點清單純展示單欄頁面 (/trip/{id} & /share/{slug})
   ========================================================================== */
.detail-panel {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.detail-top-bar {
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: 600;
    text-decoration: none;
    background: rgba(250, 246, 241, 0.8);
    border: 1px solid var(--color-border);
    transition: all 150ms ease;
}

.back-button:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.section-title {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.section-title h2 {
    margin-bottom: 0;
    font-size: 1.6rem;
}

.eyebrow {
    margin-bottom: var(--space-1);
    color: var(--color-accent);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.muted {
    color: var(--color-text-secondary);
}

.trip-list {
    display: grid;
    gap: var(--space-3);
    max-height: calc(100vh - 280px);
    overflow-y: auto;
    padding-right: 4px;
}

/* 自訂捲軸 */
.trip-list::-webkit-scrollbar,
.detail-blocks::-webkit-scrollbar,
.modal::-webkit-scrollbar,
.drawer::-webkit-scrollbar,
.modal-backdrop::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.trip-list::-webkit-scrollbar-thumb,
.detail-blocks::-webkit-scrollbar-thumb,
.modal::-webkit-scrollbar-thumb,
.drawer::-webkit-scrollbar-thumb,
.modal-backdrop::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 99px;
}

.sidebar-tools {
    display: grid;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

/* ==========================================================================
   行程側邊卡片 (Trip Card - 手帳書籤效果)
   ========================================================================== */
.trip-card {
    width: 100%;
    text-align: left;
    color: var(--color-text-primary);
    background: #fff;
    border: 1px solid var(--color-border);
    border-left: 5px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    position: relative;
    transition: all 220ms cubic-bezier(0.34, 1.3, 0.64, 1);
    box-shadow: var(--shadow-sm);
}

.trip-card small,
.share-row span {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.82rem;
    margin-top: 4px;
}

.trip-card:hover {
    color: var(--color-text-primary);
    background: #fffaf7;
    border-color: var(--color-secondary);
    border-left-color: var(--color-primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.trip-card.active {
    color: var(--color-text-primary);
    background: #fff7f2;
    border-color: var(--color-secondary);
    border-left-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(217, 120, 99, 0.12);
}

.trip-card strong,
.timeline-item strong {
    display: block;
    margin-bottom: var(--space-1);
    font-size: 1.05rem;
    color: var(--color-text-primary);
}

.trip-card span,
.timeline-time {
    color: var(--color-text-muted);
    font-size: 0.86rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.empty-state {
    display: grid;
    place-items: center;
    min-height: 520px;
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--space-6);
    background: rgba(250, 246, 241, 0.4);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--color-border);
}

.empty-state h2 {
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

/* ==========================================================================
   時間軸與瀑布流項目 (Timeline Waterfall)
   ========================================================================== */
.timeline {
    position: relative;
    display: grid;
    gap: var(--space-4);
    padding-left: var(--space-6);
    margin-top: var(--space-4);
}

.day-nav-strip {
    position: sticky;
    top: 65px;              /* app-header min-height + border */
    z-index: 10;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) 0;
    margin-bottom: var(--space-4);
    /* 突破 detail-panel 的 padding ，讓 sticky 頂的位置正確貼齊 panel 內編 */
    margin-left: calc(-1 * var(--space-6));
    margin-right: calc(-1 * var(--space-6));
    padding-left: var(--space-6);
    padding-right: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.day-nav-scroll {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    padding: var(--space-1) var(--space-4);
    scrollbar-width: none;
    -ms-overflow-style: none;
    flex: 1;
    min-width: 0;
}

.day-nav-scroll::-webkit-scrollbar {
    display: none;
}

.day-nav-btn {
    flex-shrink: 0;
    padding: 6px 14px;
    border-radius: var(--radius-pill, 999px);
    border: 1.5px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
    line-height: 1.4;
}

.day-nav-btn:hover {
    background: var(--color-primary-light, #fde8d8);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.day-nav-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.pwa-install {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #fff7f2, #fff);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.pwa-install p {
    margin-bottom: 0;
}

.timeline-day {
    position: sticky;
    top: 80px;
    z-index: 5;
    margin: var(--space-3) 0 0 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: rgba(255, 253, 252, 0.92);
    color: var(--color-accent);
    padding: 6px 14px;
    font-weight: 800;
    font-size: 0.95rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    width: fit-content;
}

/* 手帳縫線時間軸 */
.timeline::before {
    content: "";
    position: absolute;
    left: 11px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: repeating-linear-gradient(
        to bottom,
        var(--color-border) 0,
        var(--color-border) 8px,
        transparent 8px,
        transparent 14px
    );
}

/* 瀑布流行程卡片 (Timeline Item Card) */
.timeline-item {
    position: relative;
    display: grid;
    gap: var(--space-2);
    background: #fff;
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) 38px var(--space-4) var(--space-4);
    box-shadow: var(--shadow-sm);
    transition: all 220ms cubic-bezier(0.34, 1.3, 0.64, 1);
    cursor: pointer;
    scroll-margin-top: 140px;
}

.timeline-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* 定位高亮動畫 */
.timeline-item.highlight {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(214, 168, 75, 0.25), var(--shadow-md);
    animation: item-pulse 1.5s ease-in-out 2;
}

@keyframes item-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.015); }
}

/* 時間軸節點圓點 */
.timeline-item::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--space-6) + 3px);
    top: 22px;
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border: 3px solid var(--color-background);
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--color-border);
    transition: transform 200ms ease, background-color 200ms ease;
}

.timeline-item:hover::before {
    transform: scale(1.2);
    background: var(--color-accent);
}

/* 依類型套用專屬手帳配色 (Item Type Styles) */
.timeline-item--place {
    background: var(--color-place-bg);
    border-top-color: var(--color-place-text);
    border-color: var(--color-place-border);
}
.timeline-item--place::before { background: var(--color-place-text); }

.timeline-item--event {
    background: var(--color-event-bg);
    border-top-color: var(--color-event-text);
    border-color: var(--color-event-border);
}
.timeline-item--event::before { background: var(--color-event-text); }

.timeline-item--transport {
    background: var(--color-transport-bg);
    border-top-color: var(--color-transport-text);
    border-color: var(--color-transport-border);
}
.timeline-item--transport::before { background: var(--color-transport-text); }

.timeline-item--meal {
    background: var(--color-meal-bg);
    border-top-color: var(--color-meal-text);
    border-color: var(--color-meal-border);
}
.timeline-item--meal::before { background: var(--color-meal-text); }

.timeline-item--lodging {
    background: var(--color-lodging-bg);
    border-top-color: var(--color-lodging-text);
    border-color: var(--color-lodging-border);
}
.timeline-item--lodging::before { background: var(--color-lodging-text); }

/* 日期分隔標頭（加上 padding 與美化） */
.day-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    margin: var(--space-4) 0 var(--space-3) 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-size: 1.05rem;
    font-weight: 600;
    scroll-margin-top: 140px;
    flex-wrap: wrap;
}

/* 行程項目頂部 Icon 徽章與時間標籤 */
.timeline-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.timeline-item-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    min-width: 0;
}

.timeline-item-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.3;
    display: inline;
    margin: 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.timeline-item-chevron {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-muted);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease;
    pointer-events: none;
}

.timeline-item:hover .timeline-item-chevron {
    transform: translateY(-50%) translateX(4px);
    color: var(--color-primary);
}

.type-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 0.825rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    flex-shrink: 0;
    white-space: nowrap;
}

.type-badge.place { background: rgba(217, 120, 99, 0.12); color: var(--color-place-text); }
.type-badge.event { background: rgba(142, 120, 168, 0.15); color: var(--color-event-text); }
.type-badge.transport { background: rgba(120, 150, 168, 0.15); color: var(--color-transport-text); }
.type-badge.meal { background: rgba(213, 163, 69, 0.15); color: var(--color-meal-text); }
.type-badge.lodging { background: rgba(120, 155, 122, 0.15); color: var(--color-lodging-text); }

.timeline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.detail-block .timeline-actions {
    margin-top: var(--space-3);
    border-top: 1px dashed var(--color-border);
    padding-top: var(--space-2);
    justify-content: flex-end;
}

.icon-action-btn {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    padding: 0;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm, 8px);
    background: var(--color-surface);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.icon-action-btn:hover:not(:disabled) {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.icon-action-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.add-detail-btn {
    display: block;
    width: 100%;
    padding: 0.8rem;
    border: 2px dashed var(--color-primary);
    border-radius: var(--radius-md, 12px);
    background: rgba(217, 120, 99, 0.05);
    color: var(--color-primary);
    font-size: 0.95rem;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-detail-btn:hover {
    background: rgba(217, 120, 99, 0.12);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}


/* ==========================================================================
   狀態與提示徽章 (Hint Pills)
   ========================================================================== */
.pill {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.pill.info {
    color: var(--color-info);
    background: var(--color-info-bg);
    border-color: var(--color-info-border);
}

.pill.success {
    color: var(--color-success);
    background: var(--color-success-bg);
    border-color: var(--color-success-border);
}

.pill.warning {
    color: var(--color-warning);
    background: var(--color-warning-bg);
    border-color: var(--color-warning-border);
}

.pill.danger {
    color: var(--color-danger);
    background: var(--color-danger-bg);
    border-color: var(--color-danger-border);
}

/* ==========================================================================
   彈窗 Modal (Glassmorphism 毛玻璃與進出過渡)
   ========================================================================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    overflow-y: auto;
    background: rgba(66, 57, 54, 0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: modal-fade-in 200ms ease-out;
}

@keyframes modal-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    width: min(480px, 100%);
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    margin: auto;
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    animation: modal-pop 220ms cubic-bezier(0.34, 1.4, 0.64, 1);
}

@keyframes modal-pop {
    from { opacity: 0; transform: scale(0.94) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal.wide {
    width: min(660px, 100%);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

/* 讓 form-grid 內的 label 正確收縮，防止 iOS datetime-local 擐破 grid 色 */
.form-grid > label {
    min-width: 0;
    overflow: hidden;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-top: var(--space-2);
}

/* ==========================================================================
   詳細內容抽屜 (Drawer - 右側滑出 / 手機版 Bottom Sheet)
   ========================================================================== */
/*
 * iOS Safari 防止底層滾動的唯一可靠方案：
 * 使用 body.drawer-open + position:fixed 鎖定頁面，
 * 從 JS 記錄 scrollY 並在關閉時還原。
 */
body.drawer-open {
    position: fixed;
    width: 100%;
    overflow-y: scroll; /* 保留捲軸避免版面跳動 */
}

.drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 54;
    backdrop-filter: blur(2px);
    overscroll-behavior: contain;       /* 防止滾動穿透到底層 */
    -webkit-overflow-scrolling: touch;  /* iOS 慣性滾動 */
    transition: opacity 250ms ease;
}

.drawer-backdrop[hidden] {
    opacity: 0;
    pointer-events: none;
    display: block !important;
}

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 55;
    display: flex;
    flex-direction: column;
    width: min(600px, 100%);
    height: 100vh;
    border-radius: 0;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    box-shadow: -8px 0 32px rgba(66, 57, 54, 0.15);
    overflow-y: auto;
    overscroll-behavior: contain;
    animation: drawer-slide-in 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes drawer-slide-in {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

.drawer-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background: rgba(255, 253, 252, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body:not(.edit-mode) .drawer-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-2);
}

.detail-blocks {
    display: grid;
    align-content: start;
    gap: var(--space-3);
    padding: var(--space-5);
}

body:not(.edit-mode) .detail-blocks {
    padding-top: var(--space-2);
}

body:not(.edit-mode) .detail-blocks * {
    margin: 0;
}

.share-result,
.share-list,
.reminder-list {
    display: grid;
    gap: var(--space-3);
}

.share-result,
.share-row {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    padding: var(--space-4);
    word-break: break-all;
    box-shadow: var(--shadow-sm);
}

.share-row {
    display: grid;
    gap: var(--space-2);
}

.reminder-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    padding: var(--space-3);
    box-shadow: var(--shadow-sm);
}

/* Block Editor 元件樣式 - 檢視模式下不顯示 border 與 padding */
.detail-block {
    display: grid;
    gap: var(--space-2);
    border: none;
    border-radius: 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
    transition: all 180ms ease;
}

body.edit-mode .detail-block {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    background: #fff;
    box-shadow: var(--shadow-sm);
}

body.edit-mode .detail-block:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.detail-block[draggable="true"] {
    cursor: grab;
}

.detail-block[draggable="true"]:active {
    cursor: grabbing;
}

.detail-block.drag-over {
    border-color: var(--color-accent);
    background: #fff8ec;
    transform: scale(1.01);
}

.detail-block img {
    display: block;
    width: 100%;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.map-embed {
    width: 100%;
    aspect-ratio: 4 / 3;
    border: 0;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.block-form {
    display: grid;
    gap: var(--space-3);
    padding: var(--space-5);
    border-top: 1px solid var(--color-border);
    background: #fffaf7;
}

.image-fields {
    display: grid;
    gap: var(--space-3);
}

/* ==========================================================================
   通知訊息 (Toast - 浮動膠囊毛玻璃)
   ========================================================================== */
.toast {
    position: fixed;
    left: 50%;
    top: var(--space-5);
    z-index: 9999;
    transform: translateX(-50%);
    max-width: min(520px, calc(100% - 32px));
    border-radius: 999px;
    background: rgba(66, 57, 54, 0.92);
    color: #fff;
    padding: 12px 24px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    animation: toast-pop 250ms cubic-bezier(0.34, 1.4, 0.64, 1);
}

@keyframes toast-pop {
    from { opacity: 0; transform: translate(-50%, -15px) scale(0.9); }
    to { opacity: 1; transform: translate(-50%, 0) scale(1); }
}

/* ==========================================================================
   全域 API 載入動畫 (API Loading Indicator & Shimmer Bar)
   ========================================================================== */
.api-loader-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-secondary), var(--color-primary));
    background-size: 200% 100%;
    z-index: 100000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.api-loader-bar.active {
    opacity: 1;
    animation: api-loader-shimmer 1.4s linear infinite;
}

@keyframes api-loader-shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

.api-loader {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    border-radius: 36px;
    background: rgba(255, 253, 252, 0.90);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.85);
    transition: opacity 250ms cubic-bezier(0.34, 1.4, 0.64, 1), transform 250ms cubic-bezier(0.34, 1.4, 0.64, 1);
}

.api-loader.active {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.api-loader-spinner {
    width: 128px;
    height: 128px;
    position: relative;
    flex-shrink: 0;
}

.api-loader-spinner::before,
.api-loader-spinner::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 6px solid transparent;
}

.api-loader-spinner::before {
    border-top-color: var(--color-primary);
    border-right-color: var(--color-accent);
    animation: api-loader-spin 0.85s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.api-loader-spinner::after {
    inset: 10px;
    border: 6px solid transparent;
    border-bottom-color: var(--color-secondary);
    border-left-color: var(--color-primary);
    animation: api-loader-spin-reverse 1.2s linear infinite;
}

@keyframes api-loader-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes api-loader-spin-reverse {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

[hidden] {
    display: none !important;
}

/* ==========================================================================
   響應式設計 (Responsive Layouts & Bottom Sheet)
   ========================================================================== */
@media (max-width: 860px) {
    .login-panel,
    .workspace {
        grid-template-columns: 1fr;
    }

    .trip-sidebar {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
    }

    .trip-list {
        grid-auto-flow: column;
        grid-auto-columns: minmax(240px, 75%);
        overflow-x: auto;
        overflow-y: hidden;
        max-height: none;
        padding-bottom: var(--space-2);
    }

    /* 手機版 Drawer 轉為 Bottom Sheet 底部升起 */
    .drawer {
        top: auto;
        bottom: 0;
        width: 100%;
        height: min(80dvh, 760px);
        max-height: 80dvh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        border-left: 0;
        border-top: 1px solid var(--color-border);
        box-shadow: 0 -12px 40px rgba(66, 57, 54, 0.2);
        overflow-y: auto;
        animation: bottom-sheet-slide 280ms cubic-bezier(0.16, 1, 0.3, 1);
    }

    @keyframes bottom-sheet-slide {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }

    .detail-panel {
        padding: var(--space-4);
    }

    .section-title {
        flex-wrap: wrap;
    }

    .section-title h2 {
        font-size: 1.3rem;
    }

    .day-nav-strip {
        margin-left: calc(-1 * var(--space-4));
        margin-right: calc(-1 * var(--space-4));
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    /* 手機版 modal 內的 form-grid 改單欄，避免 iOS datetime-local 在窄欄中溢出 */
    .form-grid {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 620px) {
    .container {
        width: min(100% - 20px, 1180px);
    }

    .content {
        padding: var(--space-4) 0;
    }

    .login-panel,
    .trip-sidebar,
    .timeline-panel,
    .detail-panel,
    .modal,
    .drawer-header,
    .detail-blocks,
    .block-form {
        padding: var(--space-4);
    }

    .day-nav-strip {
        margin-left: calc(-1 * var(--space-4));
        margin-right: calc(-1 * var(--space-4));
        padding-left: var(--space-3);
        padding-right: var(--space-3);
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .timeline {
        padding-left: var(--space-5);
    }

    .timeline-item::before {
        left: calc(-1 * var(--space-5) + 3px);
    }
}