/* 钢琴页面样式 - 适配项目风格（纯色版本） */

/* 根元素样式 - 浅色模式（默认） */
:root {
    /* 复用base.css的颜色变量 */
    --primary-color: #5BA3C5;
    --primary-light: #7ABBD7;
    --primary-dark: #4A8FB0;
    --secondary-color: #F4C467;
    --secondary-light: #FFD489;
    --secondary-dark: #E6A94F;
    --accent-color: #FF9557;
    --accent-light: #FFB380;
    --cloud-color: #FFF5E6;
    --background-color: #F0F7FA;
    --background-secondary: #E8F3F8;
    --card-background: #ffffff;
    --text-color: #2C4A5C;
    --text-secondary: #6B8395;
    --border-color: #D6E7F0;
    --white: #ffffff;
    --shadow-color: rgba(91, 163, 197, 0.1);
    --shadow-hover: rgba(91, 163, 197, 0.15);
    
    /* Piano页面特定颜色 */
    --piano-bg: #5BA3C5;
    --key-bg: #F4C467;
    --key-hover: #FFD489;
    --pattern-color: #4A8FB0;
}

/* 深色模式 */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #6BAFD1;
        --primary-light: #8AC5E3;
        --primary-dark: #5A9ABC;
        --secondary-color: #F4C467;
        --secondary-light: #FFD489;
        --secondary-dark: #E6A94F;
        --accent-color: #FF9557;
        --accent-light: #FFB380;
        --cloud-color: #3A4D5C;
        --background-color: #1A2631;
        --background-secondary: #243140;
        --card-background: #243140;
        --text-color: #E0E9F0;
        --text-secondary: #A0B3C5;
        --border-color: #354555;
        --white: #ffffff;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --shadow-hover: rgba(0, 0, 0, 0.4);
        
        /* Piano页面特定颜色 - 深色模式 */
        --piano-bg: #2A3B4D;
        --key-bg: #E6A94F;
        --key-hover: #F4C467;
        --pattern-color: #5A9ABC;
    }
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: var(--piano-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", 
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", 
                 Helvetica, Arial, sans-serif;
    touch-action: none;
}

#container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

#gridContainer {
    position: absolute;
    display: grid;
    perspective: 1000px;
    transform-style: preserve-3d;
    transition: all 0.2s ease;
}

#gridContainer.adjusting {
    opacity: 1;
}

.gridContainer-landscape {
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(3, 1fr);
}

.gridContainer-portrait {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(5, 1fr);
}

/* 按键样式 */
.small-square {
    background: var(--key-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    font-weight: bold;
    font-size: 16px;
    box-shadow: 0 4px 15px var(--shadow-color);
    cursor: pointer;
    border-radius: 12px;
    position: relative;
    overflow: visible;
    touch-action: none;
    will-change: transform;
    -webkit-tap-highlight-color: transparent;
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    perspective: 1000px;
    backface-visibility: visible;
}

.small-square:hover {
    background: var(--key-hover);
}

/* 调整时的高亮效果 */
.adjusting .small-square {
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 15px var(--shadow-color);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 30px rgba(244, 196, 103, 0.6);
        transform: scale(1.02);
    }
}

/* 3D翻转动画 - 横屏模式 */
.gridContainer-landscape .small-square.flipping {
    animation: flipY 0.4s ease-in-out;
}

@keyframes flipY {
    0% { 
        transform: rotateY(0deg) scale(1);
        box-shadow: 0 4px 15px var(--shadow-color);
    }
    50% { 
        transform: rotateY(180deg) scale(0.8);
        box-shadow: 0 2px 10px var(--shadow-color);
    }
    100% { 
        transform: rotateY(0deg) scale(1);
        box-shadow: 0 4px 15px var(--shadow-color);
    }
}

/* 3D翻转动画 - 竖屏模式 */
.gridContainer-portrait .small-square.flipping {
    animation: flipX 0.4s ease-in-out;
}

@keyframes flipX {
    0% { 
        transform: rotateX(0deg) scale(1);
        box-shadow: 0 4px 15px var(--shadow-color);
    }
    50% { 
        transform: rotateX(180deg) scale(0.8);
        box-shadow: 0 2px 10px var(--shadow-color);
    }
    100% { 
        transform: rotateX(0deg) scale(1);
        box-shadow: 0 4px 15px var(--shadow-color);
    }
}

.small-square.flipping {
    z-index: 10;
    filter: brightness(1.1);
}

/* 图案容器 */
.pattern-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 55%;
    height: 55%;
    pointer-events: none;
    z-index: 1;
}

/* 圆形图案 */
.pattern-circle {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: transparent;
    border: 3px solid var(--pattern-color);
    box-shadow: 0 0 10px rgba(91, 163, 197, 0.3);
}

/* 菱形图案 */
.pattern-diamond {
    width: 100%;
    height: 100%;
    background: transparent;
    border: 3px solid var(--pattern-color);
    transform: rotate(45deg);
    box-shadow: 0 0 10px rgba(91, 163, 197, 0.3);
}

/* 组合图案容器 */
.pattern-both {
    width: 100%;
    height: 100%;
    position: relative;
}

.pattern-both .pattern-diamond {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    border: 3px solid var(--pattern-color);
}

.pattern-both .pattern-circle {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: transparent;
    border: 3px solid var(--pattern-color);
    z-index: 1;
    box-shadow: 0 0 10px rgba(91, 163, 197, 0.4);
}

/* ==================== 汉堡菜单按钮 ==================== */
#menuBtn {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 48px;
    height: 48px;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
}

#menuBtn:hover {
    background: var(--background-secondary);
}

#menuBtn.active {
    background: var(--secondary-color);
    border-color: var(--secondary-dark);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s ease;
    border-radius: 2px;
}

#menuBtn.active .hamburger-line {
    background-color: var(--white);
}

#menuBtn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

#menuBtn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

#menuBtn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ==================== 侧边栏 ==================== */
#sidebar {
    position: fixed;
    top: 0;
    left: -340px;
    width: 320px;
    height: 100vh;
    background: var(--card-background);
    transition: left 0.3s ease;
    z-index: 999;
    padding: 25px;
    padding-top: 80px;
    box-shadow: 5px 0 25px var(--shadow-color);
    overflow-y: auto;
}

#sidebar.open {
    left: 0;
}

/* 侧边栏头部 */
.sidebar-header {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 14px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: var(--background-secondary);
    transform: translateX(-2px);
}

.back-btn:active {
    transform: translateX(-4px);
}

.back-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.back-btn:hover .back-icon {
    transform: translateX(-3px);
}

/* 控制组 */
.control-group {
    margin-bottom: 20px;
    background: var(--background-secondary);
    padding: 16px;
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow-color);
}

.control-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--text-color);
    font-weight: 600;
    font-size: 14px;
}

.control-icon {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
    flex-shrink: 0;
}

/* 当前乐器显示 */
.current-instrument {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--card-background);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

#currentInstrumentName {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.switch-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 14px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.switch-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(91, 163, 197, 0.35);
}

.switch-btn:active {
    transform: translateY(0);
}

.switch-btn .btn-icon {
    width: 14px;
    height: 14px;
}

/* 滑块样式 */
.control-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    margin-top: 5px;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(91, 163, 197, 0.4);
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(91, 163, 197, 0.4);
    border: none;
}

/* 选择器样式 */
.control-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: var(--card-background);
    color: var(--text-color);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-group select:hover {
    border-color: var(--primary-color);
}

.control-group select:focus {
    outline: none;
    border-color: var(--primary-dark);
    box-shadow: 0 0 0 3px rgba(91, 163, 197, 0.15);
}

/* 布局切换按钮组 */
.layout-buttons {
    display: flex;
    gap: 10px;
}

.layout-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 10px;
    border: 2px solid var(--border-color);
    background: var(--card-background);
    color: var(--text-color);
    border-radius: 10px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
}

.layout-btn:hover {
    border-color: var(--primary-color);
    background: var(--background-secondary);
}

.layout-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-dark);
}

.layout-icon {
    width: 24px;
    height: 24px;
}

.layout-btn.active .layout-icon {
    color: var(--white);
}

.value-display {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    min-width: 50px;
    margin-left: auto;
}

/* 当前调式显示 */
.current-key-display {
    background: var(--accent-color);
    color: var(--white);
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    margin-top: 12px;
}

/* ==================== 加载指示器 ==================== */
#loadingIndicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-background);
    padding: 24px 32px;
    border-radius: 14px;
    box-shadow: 0 4px 24px var(--shadow-color);
    z-index: 2000;
    display: block;
    text-align: center;
    font-size: 14px;
    color: var(--text-color);
}

#loadingIndicator:not(.show) {
    display: none;
}

#loadingIndicator a {
    color: var(--primary-color);
    font-weight: 500;
}

/* ==================== 调整提示 ==================== */
.adjustment-hint {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 13px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1001;
}

@media (prefers-color-scheme: dark) {
    .adjustment-hint {
        background: rgba(255, 255, 255, 0.9);
        color: var(--text-color);
    }
}

.adjustment-hint.show {
    opacity: 1;
    visibility: visible;
}

/* ==================== 模态框样式 ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.55);
    animation: fadeIn 0.25s ease;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background-color: var(--card-background);
    padding: 0;
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px var(--shadow-color);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--card-background);
    z-index: 1;
    border-radius: 16px 16px 0 0;
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-title-icon {
    width: 22px;
    height: 22px;
    color: var(--primary-color);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 18px;
    font-weight: 600;
}

.close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: var(--background-secondary);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.close-btn:hover {
    background: var(--border-color);
    color: var(--text-color);
}

.modal-body {
    padding: 20px;
}

#instrumentsList {
    display: grid;
    gap: 10px;
}

.instrument-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--background-secondary);
    border-radius: 10px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.instrument-item:hover:not(.unavailable) {
    border-color: var(--primary-color);
    background: var(--card-background);
}

.instrument-item:active:not(.unavailable) {
    transform: scale(0.98);
}

.instrument-item.selected {
    background: var(--card-background);
    border-color: var(--primary-color);
}

.instrument-item.unavailable {
    opacity: 0.55;
    cursor: not-allowed;
}

.instrument-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color);
}

.instrument-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.instrument-status .status-icon {
    width: 12px;
    height: 12px;
}

.instrument-status.owned {
    background: rgba(52, 193, 26, 0.12);
    color: #34c11a;
}

.instrument-status.locked {
    background: rgba(255, 68, 68, 0.1);
    color: #ff4444;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
}

.btn-store {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    color: var(--white);
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(244, 196, 103, 0.3);
}

.btn-store:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 16px rgba(244, 196, 103, 0.4);
}

.btn-store:active {
    transform: translateY(0);
}

.btn-store .btn-icon {
    width: 18px;
    height: 18px;
}

/* ==================== 动画 ==================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ==================== 移动端适配 ==================== */
@media (max-width: 480px) {
    #menuBtn {
        top: 12px;
        left: 12px;
        width: 44px;
        height: 44px;
    }
    
    .hamburger-line {
        width: 22px;
    }
    
    #sidebar {
        width: 100%;
        left: -100%;
        padding: 20px;
        padding-top: 70px;
    }
    
    .control-group {
        margin-bottom: 16px;
        padding: 14px;
    }
    
    .control-group label {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .control-icon {
        width: 16px;
        height: 16px;
    }
    
    .layout-btn {
        padding: 10px 8px;
        font-size: 11px;
    }
    
    .layout-icon {
        width: 20px;
        height: 20px;
    }
    
    .value-display {
        font-size: 11px;
        padding: 3px 10px;
        min-width: 44px;
    }
    
    .current-instrument {
        padding: 10px 12px;
    }
    
    #currentInstrumentName {
        font-size: 15px;
    }
    
    .switch-btn {
        padding: 7px 12px;
        font-size: 12px;
    }
    
    .control-group select {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .current-key-display {
        padding: 8px 14px;
        font-size: 13px;
        margin-top: 10px;
    }
    
    /* 模态框移动端优化 */
    .modal.show {
        padding: 16px;
        align-items: flex-end;
    }
    
    .modal-content {
        max-height: 85vh;
        border-radius: 20px 20px 0 0;
        animation: slideUpMobile 0.3s ease;
    }
    
    .modal-header {
        padding: 16px;
        border-radius: 20px 20px 0 0;
    }
    
    .modal-title-icon {
        width: 20px;
        height: 20px;
    }
    
    .modal-header h3 {
        font-size: 16px;
    }
    
    .modal-body {
        padding: 16px;
    }
    
    .instrument-item {
        padding: 12px 14px;
    }
    
    .instrument-name {
        font-size: 14px;
    }
    
    .instrument-status {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    .modal-footer {
        padding: 14px 16px;
    }
    
    .btn-store {
        padding: 11px 18px;
        font-size: 13px;
        width: 100%;
        justify-content: center;
    }
    
    .btn-store .btn-icon {
        width: 16px;
        height: 16px;
    }
    
    #loadingIndicator {
        padding: 20px 24px;
        font-size: 13px;
        width: 90%;
        max-width: 300px;
    }
    
    .adjustment-hint {
        bottom: 16px;
        padding: 10px 20px;
        font-size: 12px;
    }
}

/* 移动端模态框动画 */
@keyframes slideUpMobile {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .back-btn:active {
        background: rgba(91, 163, 197, 0.15);
    }
    
    .switch-btn:active,
    .layout-btn:active,
    .btn-store:active {
        transform: scale(0.97);
    }
    
    .close-btn:active {
        background: var(--border-color);
    }
    
    .control-group input[type="range"]::-webkit-slider-thumb {
        width: 28px;
        height: 28px;
    }
    
    .control-group input[type="range"]::-moz-range-thumb {
        width: 28px;
        height: 28px;
    }
}