:root {
    --bg-gradient: linear-gradient(135deg, #1a2a6c, #2c3e50, #4a235a);
    --text-color: #f0f0f0;
    --panel-bg: rgba(255, 255, 255, 0.08);
    --panel-bg-hover: rgba(255, 255, 255, 0.12);
    --panel-border: rgba(255,255,255,0.1);
    --header-bg: rgba(0, 0, 0, 0.7);
    --tool-bg: rgba(255, 255, 255, 0.1);
    --tool-bg-hover: rgba(255, 255, 255, 0.15);
    --modal-bg: rgba(44, 62, 80, 0.9);
    --modal-btn-bg: rgba(255, 255, 255, 0.1);
    --modal-btn-hover-bg: rgba(255, 255, 255, 0.2);
}

.theme-light {
    --bg-gradient: linear-gradient(135deg, #e0eafc, #cfdef3);
    --text-color: #333;
    --panel-bg: rgba(255, 255, 255, 0.6);
    --panel-bg-hover: rgba(255, 255, 255, 0.9);
    --panel-border: rgba(0,0,0,0.1);
    --header-bg: rgba(255, 255, 255, 0.7);
    --tool-bg: rgba(0, 0, 0, 0.05);
    --tool-bg-hover: rgba(0, 0, 0, 0.1);
    --modal-bg: rgba(240, 240, 240, 0.95);
    --modal-btn-bg: rgba(0, 0, 0, 0.05);
    --modal-btn-hover-bg: rgba(0, 0, 0, 0.1);
}

.theme-dark-purple {
    --bg-gradient: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    --text-color: #e0e0e0;
    --panel-bg: rgba(255, 255, 255, 0.05);
    --panel-bg-hover: rgba(255, 255, 255, 0.08);
    --panel-border: rgba(189, 108, 255, 0.2);
    --header-bg: rgba(0, 0, 0, 0.6);
    --tool-bg: rgba(189, 108, 255, 0.1);
    --tool-bg-hover: rgba(189, 108, 255, 0.2);
    --modal-bg: rgba(36, 36, 62, 0.95);
    --modal-btn-bg: rgba(189, 108, 255, 0.1);
    --modal-btn-hover-bg: rgba(189, 108, 255, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft JhengHei', '微軟正黑體', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    color: var(--text-color);
    transition: background 0.5s ease, color 0.5s ease;
}

.status-bar {
    background: var(--header-bg);
    padding: 12px 25px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--panel-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.mode-switcher {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    flex: 1;
    min-width: 300px;
}

.mode-btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid transparent;
    border-radius: 50px;
    color: var(--text-color);
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(5px);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.mode-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.mode-btn:hover::before {
    transform: translateX(100%);
}

.mode-btn.active {
    background: #3498db;
    color: #fff;
    box-shadow: 0 0 15px #3498db;
    border-color: rgba(255, 255, 255, 0.5);
    text-shadow: 0 0 5px rgba(0,0,0,0.5);
}

.mode-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.logo {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(to right, #00c6ff, #0072ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 120px;
}

.status-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.time-display {
    font-size: 15px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 180px;
    justify-content: center;
}

.settings-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.settings-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.desktop {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
    overflow-y: auto;
}

.workspace {
    background: var(--panel-bg);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, background-color 0.5s ease;
}

.workspace:hover {
    transform: translateY(-5px);
    background: var(--panel-bg-hover);
}

.workspace h2 {
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
}

.workspace h2 > span {
    display: flex;
    align-items: center;
    gap: 10px;
}

.add-tool-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-color);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    line-height: 28px;
    text-align: center;
    transition: all 0.2s ease;
}

.add-tool-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(90deg);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 15px;
}

.tool {
    background: var(--tool-bg);
    border-radius: 12px;
    padding: 15px 10px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid rgba(255,255,255,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.tool:hover {
    background: var(--tool-bg-hover);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.25);
}

.tool-icon {
    font-size: 2.2rem;
    margin-bottom: 10px;
    transition: transform 0.3s ease;
}

.tool:hover .tool-icon {
    transform: scale(1.1);
}

.tool-name {
    font-size: 13px;
    font-weight: 500;
}

.remove-custom-tool-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    background: rgba(255, 136, 0, 0.8);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.2s ease-in-out;
    border: 1px solid rgba(255, 255, 255, 0.7);
    z-index: 10;
}

.tool:hover .remove-custom-tool-btn {
    opacity: 1;
    transform: scale(1);
}

.dock {
    background: var(--header-bg);
    border-radius: 22px;
    margin: 0 auto 20px;
    padding: 12px 25px;
    display: flex;
    gap: 25px;
    backdrop-filter: blur(15px);
    border: 1px solid var(--panel-border);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    overflow-x: auto;
    max-width: 95%;
    min-height: 80px;
}

.dock-item {
    text-align: center;
    transition: all 0.3s ease;
    min-width: 50px;
    flex-shrink: 0;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.dock-item:hover {
    transform: scale(1.2) translateY(-8px);
}

.dock-icon {
    font-size: 1.8rem;
    display: block;
    margin-bottom: 5px;
}

.dock-label {
    font-size: 11px;
    opacity: 0.8;
}

.dock-remove-btn {
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 20px;
    background: rgba(255, 0, 0, 0.8);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.2s ease-in-out;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.dock-item:hover .dock-remove-btn {
    opacity: 1;
    transform: scale(1);
}

.dock-remove-btn:hover {
    background: red;
    transform: scale(1.1) !important;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.modal-content {
    background: var(--modal-bg);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--panel-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 90%;
    max-width: 500px;
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s ease, background-color 0.5s ease;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

.modal-content h3, .modal-content h4 {
    margin-bottom: 15px;
    font-size: 22px;
}
.modal-content h4 {
    font-size: 18px;
    margin-top: 0;
    margin-bottom: 10px;
}

.modal-section {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--panel-border);
}
.modal-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.modal-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.theme-switcher {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.theme-btn {
    padding: 10px 20px;
    border: 2px solid transparent;
}
.theme-btn.active {
    border-color: var(--text-color);
}

.modal-btn {
    background: var(--modal-btn-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-color);
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s, border-color 0.2s;
}

.modal-btn:hover {
    background: var(--modal-btn-hover-bg);
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.modal-close-btn:hover {
    opacity: 1;
}

#timezone-select {
    width: 100%;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
    text-align: left;
}
.modal-input {
    background: var(--modal-btn-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-color);
    padding: 12px;
    border-radius: 8px;
    font-size: 16px;
    width: 100%;
}
#suggestions-container {
    margin-top: 5px;
    max-height: 160px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 5px;
}
.suggestion-item {
    background: var(--modal-btn-hover-bg);
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.2s;
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: 10px;
}
.suggestion-item:hover {
    background: var(--tool-bg-hover);
    border-color: var(--panel-border);
}
.suggestion-item small {
    display: block;
    opacity: 0.7;
    font-size: 12px;
    margin-top: 2px;
}

@media (max-width: 1200px) {
    .status-bar { padding: 10px 15px; }
    .mode-btn { padding: 7px 15px; font-size: 13px; }
    .desktop { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; padding: 15px; }
    .workspace { padding: 18px; }
    .tools-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 12px; }
}

@media (max-width: 900px) {
    .status-bar { flex-direction: column; align-items: stretch; gap: 10px; }
    .logo { justify-content: center; }
    .status-right { justify-content: center; width: 100%; }
    .mode-btn { padding: 6px 12px; font-size: 12px; }
    .desktop { grid-template-columns: 1fr; }
    .dock { padding: 10px 15px; gap: 20px; }
    .dock-icon { font-size: 1.6rem; }
}

@media (max-width: 600px) {
    .status-bar { padding: 8px 12px; }
    .mode-switcher { gap: 6px; }
    .mode-btn { padding: 6px 10px; font-size: 11px; }
    .time-display { font-size: 13px; padding: 5px 12px; }
    .workspace h2 { font-size: 16px; }
    .tool { padding: 12px 8px; }
    .tool-icon { font-size: 2rem; }
    .tool-name { font-size: 12px; }
    .dock { gap: 15px; }
    .dock-icon { font-size: 1.5rem; }
    .dock-label { font-size: 10px; }
}

@media (max-width: 400px) {
    .tools-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
    .tool-icon { font-size: 1.8rem; }
    .dock { gap: 12px; }
    .dock-icon { font-size: 1.4rem; }
    .mode-btn span { display: none; }
    .mode-btn { padding: 8px; border-radius: 50%; }
    .mode-btn i { margin: 0; }
}