:root {
    --bg: #ffffff;
    --surface: #ffffff;
    --muted: #6b7278;
    --text: #0b0d10;
    --brand: #4285f4;
    --accent: #5985E1;
    --shadow: rgba(0,0,0,0.08);
    --card-border: #e6e7e8;
    --chip-bg: #fff;
    --chip-border: #e6e7e8;
    --radius-lg: 14px;
    --radius-pill: 999px;
    --glass: rgba(255,255,255,0.85);
    --glass-dark: rgba(0,0,0,0.5);
    --success: #34a853;
    --danger: #ea4335;
    --transition: 200ms ease;
    --max-width: 980px;
    --search-height: 56px;
    --card-padding: 16px;
}

body.dark {
    --bg: #0b0c10;
    --surface: #111215;
    --muted: #b0b3b6;
    --text: #eef0f2;
    --chip-bg: #111215;
    --chip-border: #26282b;
    --card-border: #222428;
    --glass: rgba(10,10,12,0.7);
}

* {
    box-sizing: border-box
}

html, body {
    height: 100%
}

body {
    margin: 0;
    padding: 0;
    font-family: "Roboto", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background var(--transition), color var(--transition);
}

.header {
    position: relative;
    width: 100%; 
    max-width: none; 
    padding: 16px 24px; 
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}


.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

    .brand .dot {
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background: linear-gradient(135deg,var(--brand),#8ab4f8);
        box-shadow: 0 0 12px rgba(66,133,244,0.18);
    }

    .brand .logo {
        font-family: 'Orbitron',sans-serif;
        font-weight: 700;
        font-size: 22px;
        letter-spacing: .06em;
        background: linear-gradient(90deg,#8ab4f8,#a0c3ff);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: var(--chip-bg);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: transform .06s, background var(--transition), border-color var(--transition);
}

    .icon-btn:hover {
        transform: scale(.98);
    }

.container {
    width: 100%;
    max-width: var(--max-width);
    padding: 0 16px 80px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

.hero {
    margin-top: 6vh;
    text-align: center;
}

.wordmark {
    font-family: 'Orbitron',sans-serif;
    font-weight: 700;
    font-size: 48px;
    background: linear-gradient(90deg,#8ab4f8,#a0c3ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: .06em;
    margin-bottom: 6px;
}

.subtitle {
    color: var(--muted);
    font-size: 14px;
    margin-top: 4px;
}

.search-wrap {
    width: 100%;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.ai-suggest {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    margin-top: 8px;
    left: 0;
    width: 100%;
    max-height: 280px;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid var(--card-border);
    box-shadow: 0 16px 48px rgba(0,0,0,0.18), 0 0 0 1px rgba(0,0,0,0.02);
    z-index: 1200;
    padding: 8px 0;
    display: none;
}

    .ai-suggest.visible {
        display: block;
    }

    .ai-suggest ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .ai-suggest li {
        padding: 10px 16px;
        font-size: 15px;
        color: var(--text);
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 12px;
        transition: background 120ms ease;
        outline: none;
    }

        .ai-suggest li:hover,
        .ai-suggest li[aria-selected="true"] {
            background: rgba(66, 133, 244, 0.06);
        }

body.dark .ai-suggest li:hover,
body.dark .ai-suggest li[aria-selected="true"] {
    background: rgba(255, 255, 255, 0.08);
}

#userDropdown {
    position: absolute;
    top: 64px;
    right: 8px; 
    width: 320px;
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: 20px; 
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 2px 6px 2px rgba(60,64,67,0.15);
    z-index: 2000;
    display: none;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1), transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden; 
}

    #userDropdown.visible {
        display: block;
        opacity: 1;
        transform: scale(1);
    }

    #userDropdown .info {
        padding: 10px 16px;
        font-size: 14px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        margin-bottom: 4px;
    }

body.dark #userDropdown .info {
    border-bottom: 1px solid var(--card-border);
}

#userDropdown .info strong {
    display: block;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
}

#userDropdown .info span {
    color: var(--muted);
    font-size: 12px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

#userDropdown button {
    width: 100%;
    padding: 10px 16px;
    text-align: left;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text);
    font-size: 14px;
    transition: background 120ms ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

    #userDropdown button:hover {
        background: rgba(66,133,244,0.08);
    }

body.dark #userDropdown button:hover {
    background: rgba(255, 255, 255, 0.08);
}

#accountModal, #backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    place-items: center;
}

#backdrop {
    background: rgba(0,0,0,0.5);
    z-index: 1999;
}

    #accountModal.visible, #backdrop.visible {
        display: grid;
    }

.modal-content {
    background: var(--surface);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 480px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.3);
    transition: background var(--transition);
}

    .modal-content h3 {
        margin-top: 0;
    }

    .modal-content label {
        display: block;
        margin-top: 12px;
        font-size: 14px;
        color: var(--muted);
    }

    .modal-content input {
        width: 100%;
        padding: 10px;
        border: 1px solid var(--card-border);
        border-radius: 8px;
        margin-top: 4px;
        background: var(--chip-bg);
        color: var(--text);
    }

.modal-actions {
    margin-top: 24px;
    text-align: right;
}

    .modal-actions button {
        margin-left: 8px;
        padding: 10px 18px;
        border-radius: 8px;
        cursor: pointer;
        font-weight: 500;
    }

    .modal-actions .btn-save {
        background: var(--brand);
        color: white;
        border: none;
    }

    .modal-actions .btn-cancel {
        background: var(--chip-bg);
        border: 1px solid var(--card-border);
        color: var(--text);
    }

.search input[type="text"] {
    flex: 1;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    font-size: 16px;
    padding: 8px 6px;
}

.chips {
    width: 100%;
    max-width: 720px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    padding: 6px 6px;
}

    .chips .chip {
        padding: 8px 12px;
        border-radius: 999px;
        background: var(--chip-bg);
        border: 1px solid var(--chip-border);
        cursor: pointer;
        transition: background .15s, transform .08s;
        color: var(--text);
        font-size: 14px;
    }

        .chips .chip:hover {
            background: rgba(66,133,244,0.06);
            transform: translateY(-1px);
        }

.results {
    width: 100%;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 6px;
    align-items: stretch;
}

.side-panel {
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.panel {
    padding: 12px;
    border-radius: 12px;
    background: var(--surface);
    border: 1px solid var(--card-border);
    box-shadow: 0 8px 28px rgba(0,0,0,0.06);
}

    .panel h4 {
        margin: 0 0 8px 0;
        font-size: 16px;
        color: var(--text);
    }

.list .row {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: background .12s;
    background: transparent;
}

    .list .row:hover {
        background: rgba(66,133,244,0.06);
    }

.list .rank {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--chip-bg);
    border: 1px solid var(--card-border);
}

.footer {
    position: fixed;
    left: 12px;
    bottom: 10px;
    z-index: 20;
    font-size: 13px;
    color: var(--muted);
    background: var(--glass);
    padding: 6px 10px;
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

@media (max-width:860px) {
    .cols {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .side-panel {
        width: 100%;
    }
}

@media (max-width:520px) {
    .wordmark {
        font-size: 36px;
    }
}

body.dark .settings-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.settings-panel button:hover {
    background: var(--brand);
    color: white;
    border-color: var(--brand);
}

.user-badge {
    min-width: 80px;
    height: 40px;
    padding: 0 20px;
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    color: #ffffff;
    background: var(--brand);
    border: none;
    outline: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.2);
    transition: transform 0.2s, background 0.2s;
}

    .user-badge:hover {
        background: var(--accent);
        transform: translateY(-1px);
    }

.user-avatar-filled {
    width: 40px; 
    height: 40px;
    border-radius: 50%; 
    object-fit: cover; 
    cursor: pointer;
    display: block;
    border: none;
    background: none; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.15); 
    transition: transform 0.2s;
}

    .user-avatar-filled:hover {
        transform: scale(1.05);
    }

/* 3. 搜尋框：滑鼠移入噴發陰影 */
.search {
    position: relative;
    width: 100%;
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--card-border);
    height: var(--search-height);
    transition: all 0.3s ease;
    box-shadow: none;
}

    .search:hover {
        box-shadow: 0 8px 24px rgba(0,0,0,0.12); /* 懸停陰影 */
        border-color: rgba(0,0,0,0.05);
    }

    .search:focus-within {
        box-shadow: 0 12px 30px rgba(66, 133, 244, 0.15);
        border-color: var(--brand);
    }

/* 4. 設定按鈕：透明膠囊型 */
.settings-btn {
    position: fixed;
    right: 20px;
    bottom: 20px;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--muted);
    border: none;
    display: flex;
    align-items: center;
    cursor: pointer;
    z-index: 3000;
    transition: background 0.2s;
}

    .settings-btn:hover {
        background: rgba(0, 0, 0, 0.05);
    }

/* 5. 設定面板：淺灰色背景與動畫 */
.settings-panel {
    position: fixed;
    right: 20px;
    bottom: 80px;
    background: var(--surface);
    border: 1px solid #e0e0e0;
    border-radius: 16px;
    padding: 12px;
    width: 200px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.15);
    z-index: 3000;
    /* 動態隱藏 */
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

    .settings-panel.visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    /* 6. 面板內按鈕：藍色膠囊型、無邊框 */
    .settings-panel button {
        width: 100%;
        padding: 10px 16px;
        border-radius: var(--radius-pill);
        border: none;
        background: var(--brand);
        color: white;
        font-weight: 500;
        cursor: pointer;
        transition: filter 0.2s;
    }

        .settings-panel button:hover {
            filter: brightness(1.1);
        }
.mic-modal {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(30px);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 16px 32px;
    border-radius: 999px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    z-index: 5000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0,0,0,0.05);
}

body.dark .mic-modal {
    background: rgba(40, 40, 42, 0.85);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mic-modal.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mic-modal.error p {
    color: #ea4335;
}

.mic-modal.error .mic-wave span {
    background: #ea4335;
    animation: none;
}

.mic-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

    .mic-content p {
        margin: 0;
        font-weight: 500;
        color: var(--text);
        font-size: 15px;
        white-space: nowrap;
    }

.mic-wave {
    display: flex;
    gap: 3px;
    align-items: center;
    height: 20px;
}

    .mic-wave span {
        width: 3px;
        height: 10px;
        background: var(--brand);
        border-radius: 2px;
        animation: wave 1s infinite ease-in-out;
    }

        .mic-wave span:nth-child(2) {
            animation-delay: 0.2s;
            height: 16px;
        }

        .mic-wave span:nth-child(3) {
            animation-delay: 0.4s;
        }

@keyframes wave {
    0%, 100% {
        transform: scaleY(1);
    }

    50% {
        transform: scaleY(1.8);
    }
}