/* === 全站基礎樣式：黑金高質感風格 === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft JhengHei', 'PingFang TC', 'Segoe UI', Arial, sans-serif;
    background:
        radial-gradient(circle at 0% 0%, #1f1408 0, #050405 45%, #020203 100%);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
    color: #f5e6c8;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(245, 210, 122, 0.10) 0, transparent 55%),
        radial-gradient(circle at 80% 80%, rgba(120, 90, 46, 0.14) 0, transparent 60%),
        repeating-linear-gradient(135deg,
            rgba(245, 210, 122, 0.04),
            rgba(245, 210, 122, 0.04) 1px,
            transparent 1px,
            transparent 18px);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* === 登入驗證區 === */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    z-index: 10;
}

.auth-container.hidden {
    display: none;
}

.auth-form {
    background: linear-gradient(135deg, rgba(10, 8, 6, 0.96), rgba(24, 20, 14, 0.98));
    border: 1px solid rgba(212, 175, 55, 0.9);
    border-radius: 26px;
    padding: 48px 40px;
    max-width: 480px;
    width: 100%;
    box-shadow:
        0 0 40px rgba(0, 0, 0, 0.9),
        0 0 40px rgba(245, 210, 122, 0.35),
        inset 0 0 28px rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    animation: formSlideIn 0.5s ease;
}

@keyframes formSlideIn {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.auth-title {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 38px;
}

.brand-logo {
    max-width: 260px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 18px rgba(245, 210, 122, 0.55));
    animation: brandFloat 5s ease-in-out infinite;
}

.brand-logo-header {
    max-width: 320px;
}

.header-title {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 18px;
}

@keyframes brandFloat {
    0%, 100% { transform: translateY(0); filter: drop-shadow(0 0 18px rgba(245, 210, 122, 0.55)); }
    50% { transform: translateY(-3px); filter: drop-shadow(0 0 26px rgba(245, 210, 122, 0.85)); }
}

@keyframes goldGradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    color: #f5d27a;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-shadow: 0 0 12px rgba(245, 210, 122, 0.4);
}

.form-input {
    width: 100%;
    background: rgba(5, 4, 3, 0.95);
    border: 1px solid rgba(245, 210, 122, 0.55);
    border-radius: 12px;
    padding: 13px 18px;
    color: #f5e6c8;
    font-size: 0.98rem;
    transition: all 0.25s ease;
    outline: none;
}

.form-input::placeholder {
    color: rgba(245, 210, 122, 0.35);
}

.form-input:focus {
    border-color: #f5d27a;
    box-shadow:
        0 0 0 1px rgba(245, 210, 122, 0.6),
        0 0 18px rgba(245, 210, 122, 0.4);
    background: rgba(10, 8, 6, 0.98);
}

/* 登入按鈕 */
.auth-btn {
    width: 100%;
    background: linear-gradient(135deg, #f8e4b0, #d4af37);
    color: #15110d;
    border: 1px solid #e8c76b;
    padding: 15px;
    border-radius: 999px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow:
        0 8px 25px rgba(0, 0, 0, 0.9),
        0 0 26px rgba(245, 210, 122, 0.5),
        inset 0 0 15px rgba(255, 255, 255, 0.18);
    transition: all 0.25s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
}

.auth-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow:
        0 14px 35px rgba(0, 0, 0, 0.95),
        0 0 32px rgba(245, 210, 122, 0.75);
    filter: brightness(1.02);
}

.auth-btn:active:not(:disabled) {
    transform: translateY(-1px);
    box-shadow:
        0 9px 28px rgba(0, 0, 0, 0.95),
        0 0 22px rgba(245, 210, 122, 0.6);
}

.auth-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0.5);
}

/* 驗證訊息 */
.auth-message {
    text-align: center;
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    display: none;
    animation: messageSlideIn 0.3s ease;
}

@keyframes messageSlideIn {
    from {
        transform: translateY(-6px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.auth-message.success {
    background: rgba(73, 132, 92, 0.18);
    border: 1px solid #6bd18a;
    color: #b7f3c8;
    box-shadow: 0 0 14px rgba(77, 171, 117, 0.35);
}

.auth-message.error {
    background: rgba(129, 53, 53, 0.23);
    border: 1px solid #ff7d7d;
    color: #ffc5c5;
    box-shadow: 0 0 14px rgba(171, 77, 77, 0.4);
}

.auth-message.loading {
    background: rgba(245, 210, 122, 0.14);
    border: 1px solid rgba(245, 210, 122, 0.8);
    color: #f8e4b0;
    box-shadow: 0 0 14px rgba(245, 210, 122, 0.45);
}

/* === 主畫面 === */
.main-content {
    display: none;
}

.main-content.active {
    display: block;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.6rem;
    background: linear-gradient(115deg, #f8e4b0, #ffe9aa, #d8b552);
    background-size: 220% 220%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 18px;
    text-shadow:
        0 0 35px rgba(0, 0, 0, 0.95),
        0 0 24px rgba(245, 210, 122, 0.55);
    animation: goldGradientShift 6s ease-in-out infinite;
    font-weight: 800;
    letter-spacing: 3px;
}

/* 使用者資訊條 */
.user-info {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.info-item {
    background: radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.15), rgba(10, 8, 6, 0.96));
    border: 1px solid rgba(245, 210, 122, 0.55);
    border-radius: 999px;
    padding: 9px 22px;
    color: #f5e6c8;
    font-size: 0.94rem;
    box-shadow:
        0 0 16px rgba(0, 0, 0, 0.9),
        0 0 14px rgba(245, 210, 122, 0.35);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.info-label {
    color: #c3a873;
    font-size: 0.86rem;
    letter-spacing: 1px;
}

.info-value {
    font-weight: 700;
    color: #f8e4b0;
}

/* 頂部操作區 */
.header-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.refresh-btn {
    background: linear-gradient(135deg, #f8e4b0, #d4af37);
    color: #15110d;
    border: 1px solid #e3c36a;
    padding: 11px 32px;
    border-radius: 999px;
    font-size: 0.98rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow:
        0 4px 18px rgba(0, 0, 0, 0.9),
        0 0 20px rgba(245, 210, 122, 0.45);
    transition: all 0.22s ease;
    text-transform: uppercase;
    letter-spacing: 1.4px;
}

.refresh-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow:
        0 10px 26px rgba(0, 0, 0, 0.95),
        0 0 26px rgba(245, 210, 122, 0.7);
}

.logout-btn {
    background: linear-gradient(135deg, #3b1515, #6d2323);
    color: #fbe3d8;
    border: 1px solid #b55c5c;
    padding: 9px 22px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow:
        0 4px 16px rgba(0, 0, 0, 0.9),
        0 0 18px rgba(144, 53, 53, 0.6);
    transition: all 0.22s ease;
}

.logout-btn:hover {
    transform: translateY(-2px);
    box-shadow:
        0 10px 24px rgba(0, 0, 0, 0.95),
        0 0 24px rgba(177, 70, 70, 0.85);
}

.game-switcher {
    background: rgba(10, 8, 6, 0.98);
    border: 1px solid rgba(245, 210, 122, 0.7);
    color: #f5e6c8;
    border-radius: 12px;
    padding: 9px 14px;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    min-width: 220px;
    box-shadow:
        0 0 16px rgba(0, 0, 0, 0.9),
        0 0 16px rgba(245, 210, 122, 0.25);
}

.game-switcher:focus {
    border-color: #f5d27a;
    box-shadow:
        0 0 0 1px rgba(245, 210, 122, 0.65),
        0 0 18px rgba(245, 210, 122, 0.6);
}

/* === 房間卡片 === */
.rooms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.room-card {
    background-color: #0c0907;
    background-image: radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.12), transparent 65%);
    border: 1px solid rgba(245, 210, 122, 0.45);
    border-radius: 16px;
    padding: 22px 16px 14px;
    cursor: pointer;
    transition: all 0.22s ease;
    color: #f5e6c8;
    position: relative;
    overflow: visible;
    box-shadow:
        0 10px 26px rgba(0, 0, 0, 0.9),
        0 0 18px rgba(245, 210, 122, 0.25);
}

.room-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -120%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 210, 122, 0.32), transparent);
    transition: left 0.55s;
    /* 修正：避免光條覆蓋到其他卡片造成誤點 */
    pointer-events: none;
}

.room-card:hover::before {
    left: 130%;
}

.room-card:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(245, 210, 122, 0.95);
    box-shadow:
        0 15px 32px rgba(0, 0, 0, 0.96),
        0 0 26px rgba(245, 210, 122, 0.55);
}

.room-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.room-number {
    font-size: 0.96rem;
    color: #e0c68b;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.room-rate {
    font-size: 0.98rem;
    color: #f8da8b;
    font-weight: 700;
}

/* TOP 1~3 角標：靠上不遮文字 */
.room-top-label {
    position: absolute;
    top: -6px;
    left: 24px;
    padding: 3px 14px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    z-index: 3;
    box-shadow:
        0 0 10px rgba(0, 0, 0, 0.9),
        0 0 14px rgba(245, 210, 122, 0.8);
    /* 修正：角標本身不攔截點擊，事件交給底下卡片 */
    pointer-events: none;
}

.room-top-label-1 {
    background: linear-gradient(135deg, #fff8d7, #f5d27a, #d4af37);
    color: #15110d;
    font-size: 0.8rem;
}

.room-top-label-2 {
    background: linear-gradient(135deg, #f9e6bf, #e3c36a, #bda150);
    color: #15110d;
}

.room-top-label-3 {
    background: linear-gradient(135deg, #f4dfc0, #c99b5c, #a67232);
    color: #15110d;
}

/* 前 10 名：霓虹光圈 + 呼吸效果 */
.room-card.top-10 {
    border-color: rgba(245, 210, 122, 0.9);
    box-shadow:
        0 10px 26px rgba(0, 0, 0, 1),
        0 0 24px rgba(245, 210, 122, 0.7),
        inset 0 0 14px rgba(0, 0, 0, 0.9);
}

.room-card.top-10::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: inherit;
    border: 1px solid rgba(245, 210, 122, 0.9);
    background: radial-gradient(circle, rgba(245, 210, 122, 0.12) 0, transparent 60%);
    box-shadow:
        0 0 14px rgba(245, 210, 122, 0.7),
        0 0 32px rgba(245, 210, 122, 0.9);
    opacity: 0.6;
    pointer-events: none;
    animation: neonRing 2.6s ease-in-out infinite;
}

.room-card.top-10 .room-number,
.room-card.top-10 .room-rate {
    color: #fff4ca;
}

/* TOP 1：最誇張尊榮黑金 */
.room-card.top-1 {
    background-color: #21140a;
    background-image: radial-gradient(circle at 0 0, rgba(255, 245, 196, 0.42), transparent 70%);
    transform: translateY(-4px) scale(1.03);
    border-width: 2px;
    box-shadow:
        0 0 24px #f5d27a,
        0 0 42px rgba(245, 210, 122, 0.98),
        0 0 68px rgba(245, 210, 122, 0.98),
        inset 0 0 20px rgba(0, 0, 0, 0.95);
}

.room-card.top-1::after {
    border-width: 2px;
    box-shadow:
        0 0 26px rgba(255, 245, 196, 1),
        0 0 60px rgba(255, 245, 196, 1);
    animation: neonRingTop1 2.2s ease-in-out infinite;
}

.room-card.top-1 .room-number,
.room-card.top-1 .room-rate {
    color: #fff9dd;
    text-shadow:
        0 0 14px rgba(0, 0, 0, 1),
        0 0 18px rgba(245, 210, 122, 1);
}

/* TOP 2 / TOP 3：比一般前十再亮一階 */
.room-card.top-2,
.room-card.top-3 {
    background-color: #1a1107;
    background-image: radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.30), transparent 70%);
    transform: translateY(-2px) scale(1.015);
    box-shadow:
        0 0 20px rgba(245, 210, 122, 0.85),
        0 0 44px rgba(245, 210, 122, 0.9),
        inset 0 0 18px rgba(0, 0, 0, 0.9);
}

.room-card.top-2::after,
.room-card.top-3::after {
    box-shadow:
        0 0 22px rgba(245, 210, 122, 0.95),
        0 0 46px rgba(245, 210, 122, 1);
}

.room-card.top-2 .room-number,
.room-card.top-2 .room-rate,
.room-card.top-3 .room-number,
.room-card.top-3 .room-rate {
    color: #fff1c8;
    text-shadow:
        0 0 10px rgba(0, 0, 0, 1),
        0 0 14px rgba(245, 210, 122, 0.9);
}

/* 光圈動畫 */
@keyframes neonRing {

    0%,
    100% {
        opacity: 0.45;
        transform: scale(1) rotate(0deg);
        box-shadow:
            0 0 14px rgba(245, 210, 122, 0.6),
            0 0 30px rgba(245, 210, 122, 0.7);
    }

    50% {
        opacity: 0.95;
        transform: scale(1.03) rotate(1.5deg);
        box-shadow:
            0 0 24px rgba(255, 239, 188, 0.95),
            0 0 48px rgba(255, 239, 188, 1);
    }
}

@keyframes neonRingTop1 {

    0%,
    100% {
        opacity: 0.65;
        transform: scale(1.01) rotate(0deg);
        box-shadow:
            0 0 24px rgba(255, 245, 196, 0.95),
            0 0 56px rgba(255, 245, 196, 1);
    }

    50% {
        opacity: 1;
        transform: scale(1.05) rotate(2deg);
        box-shadow:
            0 0 34px rgba(255, 250, 210, 1),
            0 0 72px rgba(255, 250, 210, 1);
    }
}

/* === 通用彈窗 === */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 10% 0, rgba(245, 210, 122, 0.04), rgba(0, 0, 0, 0.92));
    backdrop-filter: blur(5px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: #120f0b;
    background-image:
        radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.18), transparent 70%),
        linear-gradient(180deg, rgba(24, 18, 10, 1), rgba(12, 9, 6, 1));
    border: 1px solid #f5d27a;
    border-radius: 20px;
    max-width: 620px;
    width: 100%;
    padding: 32px;
    box-shadow:
        0 0 55px rgba(0, 0, 0, 1),
        0 0 40px rgba(245, 210, 122, 0.4),
        inset 0 0 24px rgba(0, 0, 0, 0.9);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(28px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close-btn {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(40, 25, 16, 0.95);
    border: 1px solid #f5d27a;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    font-size: 1.4rem;
    color: #f5d27a;
    cursor: pointer;
    transition: all 0.26s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 0 18px rgba(0, 0, 0, 0.9),
        0 0 16px rgba(245, 210, 122, 0.55);
}

.close-btn:hover {
    background: rgba(72, 44, 21, 0.98);
    box-shadow:
        0 0 22px rgba(0, 0, 0, 0.95),
        0 0 22px rgba(245, 210, 122, 0.85);
    transform: rotate(90deg);
}

.modal-title {
    font-size: 1.7rem;
    font-weight: 800;
    background: linear-gradient(120deg, #f8e4b0, #d4af37, #f8d88b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 22px;
    text-align: center;
}

/* 訊號項目 */
.signal-item {
    background: linear-gradient(135deg, rgba(245, 210, 122, 0.12), rgba(118, 92, 46, 0.26));
    border: 1px solid rgba(245, 210, 122, 0.45);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.22s ease;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 0 18px rgba(0, 0, 0, 0.9),
        0 0 18px rgba(245, 210, 122, 0.3);
}

.signal-item:hover {
    border-color: rgba(245, 210, 122, 0.85);
    box-shadow:
        0 0 24px rgba(0, 0, 0, 1),
        0 0 26px rgba(245, 210, 122, 0.6);
    transform: translateX(4px);
}

.signal-icon-wrapper {
    display: flex;
    align-items: center;
    gap: 14px;
}

.signal-icon {
    width: 68px;
    height: 68px;
    background: radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.33), rgba(18, 15, 11, 0.95));
    border: 1px solid rgba(245, 210, 122, 0.7);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 0 20px rgba(0, 0, 0, 0.95),
        0 0 22px rgba(245, 210, 122, 0.55);
    overflow: hidden;
}

.signal-icon img {
    width: 88%;
    height: 88%;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(245, 210, 122, 0.75));
}

.signal-name {
    font-size: 1.05rem;
    color: #f7e3af;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-shadow:
        0 0 10px rgba(0, 0, 0, 1),
        0 0 12px rgba(245, 210, 122, 0.75);
}

.signal-count {
    background: linear-gradient(135deg, #f8e4b0, #d4af37);
    color: #15110d;
    padding: 11px 22px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1.05rem;
    box-shadow:
        0 7px 22px rgba(0, 0, 0, 0.95),
        0 0 22px rgba(245, 210, 122, 0.7);
    border: 1px solid #f5d27a;
}

/* 提示框 */
.hint-box {
    background: linear-gradient(135deg, rgba(61, 45, 20, 0.9), rgba(25, 19, 10, 0.98));
    border: 1px solid rgba(245, 210, 122, 0.75);
    border-left: 4px solid #f5d27a;
    padding: 18px;
    border-radius: 14px;
    margin: 24px 0;
    box-shadow:
        0 0 18px rgba(0, 0, 0, 1),
        0 0 22px rgba(245, 210, 122, 0.4);
}

.hint-box p {
    color: #f3e0aa;
    font-size: 0.95rem;
    line-height: 1.7;
}

/* 確認按鈕（彈窗） */
.confirm-btn {
    width: 100%;
    background: linear-gradient(135deg, #f8e4b0, #d4af37);
    color: #15110d;
    border: 1px solid #f5d27a;
    padding: 14px;
    border-radius: 999px;
    font-size: 1.03rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow:
        0 8px 26px rgba(0, 0, 0, 1),
        0 0 26px rgba(245, 210, 122, 0.65);
    transition: all 0.25s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.confirm-btn:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 32px rgba(0, 0, 0, 1),
        0 0 32px rgba(245, 210, 122, 0.9);
}

/* 底部提示 */
.footer-note {
    text-align: center;
    color: #c3a873;
    font-size: 0.94rem;
    margin-top: 18px;
    text-shadow: 0 0 16px rgba(0, 0, 0, 1);
    letter-spacing: 1.2px;
}

/* === 遊戲選擇卡片 === */
.game-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.game-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: #15110d;
    background-image: linear-gradient(135deg, rgba(245, 210, 122, 0.14), rgba(20, 15, 9, 1));
    border: 1px solid rgba(245, 210, 122, 0.7);
    border-radius: 14px;
    padding: 18px 16px;
    cursor: pointer;
    transition: all 0.22s ease;
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.98),
        0 0 22px rgba(245, 210, 122, 0.4);
    color: inherit;
    font-family: inherit;
}

.game-card-icon {
    width: 72px;
    height: 72px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(245, 210, 122, 0.55);
    background: #0a0805;
}

.game-card.selected {
    border-color: #f5d27a;
    background-image: linear-gradient(135deg, rgba(245, 210, 122, 0.22), rgba(28, 21, 13, 1));
    box-shadow:
        0 10px 28px rgba(0, 0, 0, 1),
        0 0 32px rgba(245, 210, 122, 0.85);
    transform: translateY(-2px);
}

.game-card:hover {
    transform: translateY(-2px);
    border-color: #f5d27a;
    box-shadow:
        0 12px 30px rgba(0, 0, 0, 1),
        0 0 26px rgba(245, 210, 122, 0.8);
}

.game-card-title {
    font-size: 1.03rem;
    color: #f7e3af;
    font-weight: 800;
    letter-spacing: 0.6px;
}

.game-card-meta {
    font-size: 0.9rem;
    color: #c8af7a;
}

/* === 響應式調整 === */
@media (max-width: 768px) {
    body {
        padding: 12px;
    }

    .auth-form {
        padding: 32px 22px;
        border-radius: 22px;
    }

    .auth-title {
        margin-bottom: 26px;
    }

    .brand-logo {
        max-width: 220px;
    }

    .brand-logo-header {
        max-width: 240px;
    }

    .header {
        margin-bottom: 18px;
    }

    .header-title {
        margin-bottom: 12px;
    }

    .rooms-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .room-card {
        padding: 18px 12px 12px;
        border-radius: 14px;
    }

    .room-number {
        font-size: 0.9rem;
    }

    .room-rate {
        font-size: 0.92rem;
    }

    .user-info {
        gap: 8px;
        margin-bottom: 14px;
    }

    .info-item {
        font-size: 0.84rem;
        padding: 7px 14px;
    }

    .header-actions {
        gap: 8px;
    }

    .refresh-btn {
        padding: 10px 18px;
        font-size: 0.88rem;
        letter-spacing: 1px;
    }

    .logout-btn {
        padding: 8px 16px;
        font-size: 0.84rem;
    }

    .game-switcher {
        min-width: 0;
        flex: 1 1 160px;
        padding: 9px 12px;
        font-size: 0.9rem;
    }

    .game-cards {
        grid-template-columns: 1fr;
    }

    .game-card-icon {
        width: 64px;
        height: 64px;
    }

    .modal-content {
        padding: 22px 18px;
        border-radius: 18px;
        max-height: 92vh;
    }

    .modal-title {
        font-size: 1.35rem;
        margin-bottom: 16px;
    }

    .close-btn {
        top: 10px;
        right: 10px;
        width: 34px;
        height: 34px;
        font-size: 1.2rem;
    }

    .stat-grid {
        gap: 6px;
    }

    .stat-cell {
        padding: 6px 6px;
    }

    .stat-label {
        font-size: 0.68rem;
    }

    .stat-value {
        font-size: 0.85rem;
    }

    .signal-item {
        padding: 12px;
    }

    .signal-icon {
        width: 56px;
        height: 56px;
    }

    .signal-name {
        font-size: 0.95rem;
    }

    .signal-count {
        padding: 9px 16px;
        font-size: 0.95rem;
    }

    .room-panel {
        padding: 14px;
    }

    .room-panel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .footer-note {
        font-size: 0.85rem;
    }
}

@media (max-width: 420px) {
    body {
        padding: 8px;
    }

    .brand-logo {
        max-width: 180px;
    }

    .brand-logo-header {
        max-width: 200px;
    }

    .auth-form {
        padding: 26px 18px;
    }

    .form-input {
        padding: 11px 14px;
        font-size: 0.95rem;
    }

    .auth-btn {
        padding: 13px;
        font-size: 1rem;
        letter-spacing: 1.4px;
    }

    .rooms-grid {
        gap: 8px;
    }

    .room-card {
        padding: 16px 10px 10px;
    }

    .header-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .header-actions .refresh-btn,
    .header-actions .game-switcher,
    .header-actions .logout-btn {
        width: 100%;
        flex: none;
    }

    .info-item {
        font-size: 0.8rem;
        padding: 6px 12px;
    }

    .modal-content {
        padding: 18px 14px;
    }
}

/* === 觸控優化 — 消除點擊延遲與黏住的 hover === */
* {
    -webkit-tap-highlight-color: transparent;
}

.room-card,
.game-card,
.auth-btn,
.refresh-btn,
.logout-btn,
.confirm-btn,
.close-btn,
.revoked-reload-btn,
.game-switcher,
.signal-item,
.chart-toggle,
.info-item {
    touch-action: manipulation;
}

/* 觸控裝置不要有 hover 動畫，否則點完會卡在 hover 狀態 */
@media (hover: none) {

    .room-card:hover,
    .game-card:hover,
    .signal-item:hover,
    .auth-btn:hover:not(:disabled),
    .refresh-btn:hover,
    .logout-btn:hover,
    .confirm-btn:hover,
    .close-btn:hover,
    .revoked-reload-btn:hover {
        transform: none;
        filter: none;
    }

    /* 保留各 TOP / 超級爆房本身的恆定變形（不能因 hover 被歸零） */
    .room-card.top-1:hover {
        transform: translateY(-4px) scale(1.03);
    }

    .room-card.top-2:hover,
    .room-card.top-3:hover {
        transform: translateY(-2px) scale(1.015);
    }

    .room-card.super-room:hover {
        transform: translateY(-5px) scale(1.04);
    }

    .room-card:hover {
        border-color: rgba(245, 210, 122, 0.45);
    }

    .room-card:hover::before {
        left: -120%;
    }
}

/* 觸控/按下時的即時反饋（即使裝置有滑鼠也適用） */
.room-card {
    transition: transform 0.12s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.room-card:active {
    transform: scale(0.97);
    transition: transform 0.06s ease-out;
}

.room-card.top-1:active,
.room-card.top-2:active,
.room-card.top-3:active,
.room-card.super-room:active {
    transform: translateY(-4px) scale(1.01);
}

.game-card:active {
    transform: scale(0.98);
    transition: transform 0.06s ease-out;
}

.auth-btn:active:not(:disabled),
.refresh-btn:active,
.confirm-btn:active,
.logout-btn:active,
.revoked-reload-btn:active {
    transform: scale(0.97);
    transition: transform 0.06s ease-out;
}

/* 觸控時關閉裝飾性無限動畫，避免持續重繪造成卡頓 */
@media (hover: none) and (max-width: 768px) {

    .room-card.top-10::after,
    .room-card.top-1::after,
    .room-card.top-2::after,
    .room-card.top-3::after,
    .room-card.super-room::after {
        animation: none;
    }

    .brand-logo {
        animation: none;
    }
}

/* === 房間狀態 / 覺醒機率 === */
.room-status {
    font-size: 0.75rem;
    margin-top: 4px;
    letter-spacing: 0.5px;
}

.room-awakening {
    font-size: 0.82rem;
    color: #f5d27a;
    font-weight: 700;
    margin-top: 2px;
}

/* === 超級爆房（最佳） === */
.room-card.super-room {
    background-color: #2a1808;
    background-image: radial-gradient(circle at 0 0, rgba(255, 245, 196, 0.45), transparent 70%);
    transform: translateY(-5px) scale(1.04);
    border-width: 2px;
    border-color: #ffe9aa;
    box-shadow:
        0 0 28px #f5d27a,
        0 0 50px rgba(245, 210, 122, 1),
        0 0 80px rgba(245, 210, 122, 0.95),
        inset 0 0 22px rgba(0, 0, 0, 0.95);
}

.room-card.super-room::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: inherit;
    border: 2px solid rgba(255, 245, 196, 1);
    box-shadow:
        0 0 30px rgba(255, 245, 196, 1),
        0 0 68px rgba(255, 245, 196, 1);
    pointer-events: none;
    animation: neonRingTop1 2.2s ease-in-out infinite;
}

.room-card.super-room .room-number,
.room-card.super-room .room-rate {
    color: #fff9dd;
    text-shadow: 0 0 14px rgba(0, 0, 0, 1), 0 0 18px rgba(245, 210, 122, 1);
}

/* TOP 4 / TOP 5 角標與卡片強化 */
.room-card.top-4,
.room-card.top-5 {
    background-color: #150e07;
    background-image: radial-gradient(circle at 0 0, rgba(245, 210, 122, 0.20), transparent 70%);
}

.room-top-label-4 {
    background: linear-gradient(135deg, #ead9b6, #b89853, #8e6f33);
    color: #15110d;
}

.room-top-label-5 {
    background: linear-gradient(135deg, #d9c79b, #a98944, #816427);
    color: #15110d;
}

.room-top-label-super {
    background: linear-gradient(135deg, #fff7d4, #ffe9aa, #d4af37);
    color: #15110d;
    font-size: 0.86rem;
    padding: 4px 18px;
    letter-spacing: 1.8px;
}

/* === Loading / no-data === */
.loading-indicator {
    text-align: center;
    padding: 30px;
    color: #f5d27a;
    font-size: 1rem;
    letter-spacing: 1px;
}

.no-data {
    text-align: center;
    padding: 50px 20px;
    color: #c3a873;
    font-size: 1rem;
    grid-column: 1 / -1;
}

.modal-loading {
    text-align: center;
    padding: 30px;
    color: #f5d27a;
}

.modal-error {
    text-align: center;
    padding: 20px;
    color: #ff7d7d;
}

/* === 房間詳細 Panel === */
.room-panel {
    background: linear-gradient(135deg, rgba(35, 25, 12, 1), rgba(18, 13, 8, 1));
    border: 1px solid rgba(245, 210, 122, 0.5);
    border-radius: 14px;
    padding: 18px;
    margin-top: 6px;
    box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.85);
}

.room-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.room-panel-title {
    color: #f8e4b0;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.8px;
}

.room-panel-status {
    padding: 4px 12px;
    border: 1px solid;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    background: rgba(0, 0, 0, 0.4);
}

.room-recommendation {
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 700;
    margin-bottom: 12px;
    font-size: 0.92rem;
    border: 1px solid;
}

.room-recommendation.good {
    background: rgba(73, 132, 92, 0.22);
    color: #b7f3c8;
    border-color: rgba(125, 255, 179, 0.6);
}

.room-recommendation.medium {
    background: rgba(245, 210, 122, 0.16);
    color: #f8e4b0;
    border-color: rgba(245, 210, 122, 0.6);
}

.room-recommendation.bad {
    background: rgba(129, 53, 53, 0.24);
    color: #ffc5c5;
    border-color: rgba(255, 125, 125, 0.6);
}

.occupied-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(129, 53, 53, 0.22);
    border: 1px solid rgba(255, 125, 125, 0.5);
    color: #ffc5c5;
    border-radius: 10px;
    padding: 8px 12px;
    margin-bottom: 12px;
    font-size: 0.88rem;
}

/* === Stats === */
.detail-stats {
    margin-bottom: 14px;
}

.stat-section-label {
    text-align: center;
    color: #c3a873;
    font-size: 0.78rem;
    letter-spacing: 2px;
    margin: 10px 0 6px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.stat-cell {
    background: rgba(245, 210, 122, 0.08);
    border: 1px solid rgba(245, 210, 122, 0.25);
    border-radius: 10px;
    padding: 8px 10px;
    text-align: center;
}

.stat-label {
    font-size: 0.72rem;
    color: #c3a873;
    margin-bottom: 4px;
    letter-spacing: 0.8px;
}

.stat-value {
    font-size: 0.95rem;
    color: #f5e6c8;
}

/* === Chart === */
.chart-container {
    margin-top: 10px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(245, 210, 122, 0.25);
    border-radius: 12px;
    padding: 12px 14px;
}

.chart-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    padding: 4px 0;
}

.chart-toggle-title {
    color: #f5d27a;
    font-size: 0.85rem;
    font-weight: 700;
}

.chart-toggle-action {
    color: #c3a873;
    font-size: 0.75rem;
}

.chart-body {
    display: block;
    margin-top: 10px;
}

.chart-canvas {
    width: 100%;
    display: block;
    margin-bottom: 12px;
}

.mg-section {
    margin-bottom: 12px;
}

.mg-section-title {
    color: #f5d27a;
    font-size: 0.8rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.mg-rows {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.mg-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.78rem;
}

.mg-row-current {
    background: rgba(245, 210, 122, 0.14);
    border-color: rgba(245, 210, 122, 0.5);
}

.mg-label {
    color: #c3a873;
}

.mg-row .mg-val {
    color: #f5e6c8;
}

.mg-row-current .mg-val {
    color: #fff4ca;
    font-weight: 700;
}

.trend-section {
    padding-top: 10px;
}

.trend-section.has-divider {
    border-top: 1px solid rgba(245, 210, 122, 0.18);
}

.summary-row {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(245, 210, 122, 0.18);
    display: flex;
    gap: 0;
}

.summary-cell {
    flex: 1;
    text-align: center;
    min-width: 0;
}

.summary-label {
    font-size: 0.74rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.summary-diff {
    font-size: 0.9rem;
    font-weight: 700;
}

.summary-divider {
    width: 1px;
    background: rgba(245, 210, 122, 0.18);
    margin: 2px 0;
}

/* === 訊號區塊 === */
.signal-block {
    margin-bottom: 16px;
}

.signal-block-title {
    color: #f5d27a;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.signal-item.scatter-signal {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.18), rgba(245, 210, 122, 0.14));
    border-color: rgba(255, 215, 0, 0.6);
    box-shadow:
        0 0 18px rgba(0, 0, 0, 0.9),
        0 0 22px rgba(255, 215, 0, 0.4);
}

/* === 授權失效覆蓋層 === */
.revoked-overlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 5, 3, 0.96);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.revoked-modal {
    background-color: #15110d;
    background-image: linear-gradient(135deg, rgba(245, 210, 122, 0.12), rgba(15, 11, 7, 1));
    border: 2px solid #f5d27a;
    border-radius: 20px;
    padding: 44px 36px;
    max-width: 520px;
    text-align: center;
    box-shadow:
        0 25px 70px rgba(0, 0, 0, 0.85),
        0 0 60px rgba(245, 210, 122, 0.45);
    animation: modalSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.revoked-icon {
    font-size: 4.5rem;
    color: #ff7d7d;
    margin-bottom: 18px;
    filter: drop-shadow(0 0 18px rgba(255, 125, 125, 0.7));
}

.revoked-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: #ffc5c5;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.revoked-message {
    color: #f5e6c8;
    font-size: 1.05rem;
    margin-bottom: 14px;
    line-height: 1.6;
}

.revoked-sub {
    color: #c3a873;
    font-size: 0.92rem;
    margin-bottom: 28px;
}

.revoked-reload-btn {
    background: linear-gradient(135deg, #f8e4b0, #d4af37);
    color: #15110d;
    padding: 14px 36px;
    border: 1px solid #f5d27a;
    border-radius: 999px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    box-shadow:
        0 8px 22px rgba(0, 0, 0, 0.85),
        0 0 26px rgba(245, 210, 122, 0.55);
    transition: all 0.25s ease;
}

.revoked-reload-btn:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 28px rgba(0, 0, 0, 0.95),
        0 0 32px rgba(245, 210, 122, 0.85);
}