style.css

:root {
    --bg-color: #f2f2f7;
    --text-color: #1d1d1f;
    --search-bg: #ffffff;
    --search-border: #e5e5ea;
    --search-shadow: rgba(0, 0, 0, 0.05);
    --placeholder: #8e8e93;
    --focus-border: #007aff;
    --icon-color: #8e8e93;
    --hover-bg: #e5e5ea;
    --menu-shadow: rgba(0, 0, 0, 0.12);
    --modal-overlay: rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] {
    --bg-color: #000000;
    --text-color: #f5f5f7;
    --search-bg: #1c1c1e;
    --search-border: #38383a;
    --search-shadow: rgba(255, 255, 255, 0.02);
    --placeholder: #98989d;
    --focus-border: #0a84ff;
    --icon-color: #98989d;
    --hover-bg: #2c2c2e;
    --menu-shadow: rgba(0, 0, 0, 0.5);
    --modal-overlay: rgba(0, 0, 0, 0.7);
}

body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
        sans-serif;
    transition:
        background-color 0.4s ease,
        color 0.4s ease;
    overflow-x: hidden;
    overflow-y: auto;
}

.top-header {
    display: flex;
    justify-content: flex-end;
    padding: 20px 30px;
    width: 100%;
    box-sizing: border-box;
    z-index: 100;
}

.top-right-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.theme-btn,
.icon-btn {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background-color: var(--search-bg);
    color: var(--text-color);
    border: 1px solid var(--search-border);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px var(--search-shadow);
    transition: all 0.2s ease;
    overflow: hidden;
    padding: 0;
    flex-shrink: 0;
}

.theme-btn:hover,
.icon-btn:hover {
    background-color: var(--hover-bg);
    transform: translateY(-1px);
}

.theme-btn .icon {
    position: absolute;
    transition:
        transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.5s ease;
}

#sun-icon {
    opacity: 0;
    transform: translateY(20px) rotate(90deg);
}
#moon-icon {
    opacity: 1;
    transform: translateY(0) rotate(0);
}
[data-theme="dark"] #sun-icon {
    opacity: 1;
    transform: translateY(0) rotate(0);
}
[data-theme="dark"] #moon-icon {
    opacity: 0;
    transform: translateY(-20px) rotate(-90deg);
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.search-container {
    width: 100%;
    max-width: 650px;
    padding: 0 20px;
    box-sizing: border-box;
}

.search-box {
    display: flex;
    align-items: center;
    width: 100%;
    background-color: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 50px;
    box-sizing: border-box;
    box-shadow: 0 4px 14px var(--search-shadow);
    transition: all 0.2s ease;
    padding: 6px 10px;
    position: relative;
}

.search-box:focus-within {
    border-color: var(--focus-border);
    box-shadow:
        0 4px 14px var(--search-shadow),
        0 0 0 1px var(--focus-border);
}

.engine-selector {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-left: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.engine-selector:hover {
    background-color: var(--hover-bg);
}

.engine-menu {
    position: absolute;
    left: 0;
    background-color: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--menu-shadow);
    padding: 8px;
    display: none;
    flex-direction: column;
    min-width: 150px;
    z-index: 100;
    top: calc(100%);
    backdrop-filter: blur(12px);
    background-color: rgba(var(--search-bg-rgb), 0.8);
}

.engine-menu.show {
    display: flex;
}

.engine-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background-color 0.2s;
}
.engine-option:hover {
    background-color: var(--hover-bg);
}

.search-input {
    flex: 1;
    padding: 14px 16px;
    font-size: 1.2rem;
    color: var(--text-color);
    background-color: transparent;
    border: none;
    outline: none;
    text-align: center;
}

.search-input::placeholder {
    color: var(--placeholder);
}

.mic-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    color: var(--icon-color);
    cursor: pointer;
    border-radius: 50%;
    margin-right: 4px;
    transition: all 0.2s;
}
.mic-btn:hover {
    background-color: var(--hover-bg);
    color: var(--text-color);
}
.mic-btn.listening {
    color: #ff3b30;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
    100% {
        transform: scale(1);
    }
}

.quick-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-top: 40px;
    flex-wrap: wrap;
    padding: 0 20px;
    max-width: 800px;
}

.quick-link-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    pointer-events: none;
}

.link-icon {
    width: 56px;
    height: 56px;
    background-color: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 12px var(--search-shadow);
    margin-bottom: 8px;
    transition:
        transform 0.2s ease,
        background-color 0.3s ease;
}

.quick-link-wrapper:hover .link-icon {
    transform: translateY(-2px);
}
.link-icon img {
    width: 28px;
    height: 28px;
    border-radius: 4px;
}
.quick-link-wrapper span {
    font-size: 0.8rem;
    font-weight: 500;
    opacity: 0.8;
}

.quick-link-wrapper.dragging {
    opacity: 0.4;
    transform: scale(0.9);
}
.quick-link-wrapper.drag-over .link-icon {
    transform: scale(1.1);
    border-color: var(--focus-border);
}

.add-btn .link-icon {
    background-color: transparent;
    border: 2px dashed var(--icon-color);
    box-shadow: none;
    color: var(--icon-color);
}
.add-btn:hover .link-icon {
    border-color: var(--text-color);
    color: var(--text-color);
}

.delete-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 22px;
    height: 22px;
    background-color: #ff3b30;
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
    z-index: 10;
}

.edit-btn {
    position: absolute;
    top: -6px;
    left: -6px;
    width: 22px;
    height: 22px;
    background-color: var(--focus-border);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
    z-index: 10;
}

.quick-link-wrapper:hover .edit-btn,
.quick-link-wrapper:hover .delete-btn {
    opacity: 1;
    transform: scale(1);
}

.edit-btn:hover {
    filter: brightness(1.1);
    transform: scale(1.1);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--search-bg);
    padding: 24px;
    border-radius: 16px;
    width: 100%;
    max-width: 320px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--search-border);
    opacity: 0;
    transform: scale(0.95) translateY(15px);
    transition:
        opacity 0.3s ease,
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.show .modal-content {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.modal-content h3 {
    margin: 0 0 20px 0;
    text-align: center;
}

.modal-content input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 8px;
    border: 1px solid var(--search-border);
    background-color: var(--bg-color);
    color: var(--text-color);
    box-sizing: border-box;
    outline: none;
    font-size: 1rem;
}
.modal-content input:focus {
    border-color: var(--focus-border);
}

.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}
.modal-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
    font-size: 1rem;
}
.modal-btn.cancel {
    background-color: var(--hover-bg);
    color: var(--text-color);
}
.modal-btn.save {
    background-color: #007aff;
    color: white;
}

.qr-modal-box {
    text-align: center;
}

#qrcode {
    display: flex;
    justify-content: center;
    margin: 20px 0;
    padding: 12px;
    background: white;
    border-radius: 12px;
    min-height: 160px;
}

#qrcode img {
    display: block;
}

#qr-input {
    margin-bottom: 0;
}

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(0);
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 12px 24px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2000;
    font-size: 0.9rem;
    pointer-events: none;
    opacity: 0;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
    opacity: 1;
}

#undo-btn {
    background-color: var(--focus-border);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 6px 16px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}
#undo-btn:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.qr-modal-box {
    text-align: center;
}

.qr-display-container {
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 10px 0;
}

#qr-placeholder,
#qrcode {
    width: 180px;
    height: 180px;
    box-sizing: border-box;
    border-radius: 16px;
}

#qrcode {
    display: none;
    width: 180px;
    height: 180px;
    background-color: white;
    padding: 15px;
    border-radius: 16px;
    box-sizing: border-box;
    justify-content: center;
    align-items: center;
}

#qrcode.active {
    display: flex;
}

#qrcode img {
    display: block;
}

#qr-placeholder {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 180px;
    height: 180px;
    border: 2px dashed var(--search-border);
    border-radius: 16px;
    gap: 12px;
}

#qr-placeholder svg {
    display: block;
    margin: 0;
    opacity: 0.5;
    flex-shrink: 0;
}

#qr-placeholder span {
    display: block;
    margin: 0;
    padding: 0;
    opacity: 0.7;
    line-height: 1;
    text-align: center;
}

#qr-input {
    margin-bottom: 0;
}

#qrcode.active ~ #qr-placeholder,
#qr-placeholder.hidden {
    display: none !important;
}

.settings-btn {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 100;
}

.settings-modal-box {
    max-width: 650px;
    padding: 0;
    overflow: hidden;
    position: relative;
}

.close-x-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--icon-color);
    cursor: pointer;
    z-index: 10;
    padding: 4px;
    border-radius: 50%;
    transition: background-color 0.2s;
}
.close-x-btn:hover {
    background-color: var(--hover-bg);
    color: var(--text-color);
}

.settings-layout {
    display: flex;
    min-height: 400px;
}

.settings-sidebar {
    width: 200px;
    background-color: var(--hover-bg);
    padding: 24px 16px;
    border-right: 1px solid var(--search-border);
}

.settings-sidebar h3 {
    margin: 0 0 24px 8px;
    text-align: left;
    font-size: 1.2rem;
}

.settings-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tab-btn {
    padding: 10px 12px;
    text-align: left;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.2s;
}
.tab-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}
[data-theme="dark"] .tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}
.tab-btn.active {
    background-color: var(--search-bg);
    box-shadow: 0 2px 5px var(--search-shadow);
}

.settings-content {
    flex: 1;
    padding: 32px;
    background-color: var(--search-bg);
}

.settings-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}
.settings-pane.active {
    display: block;
}
.settings-pane h4 {
    margin: 0 0 20px 0;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--search-border);
    padding-bottom: 10px;
}

.setting-group {
    margin-bottom: 20px;
}
.setting-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.settings-select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--search-border);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 0.95rem;
    outline: none;
}
.settings-select:focus {
    border-color: var(--focus-border);
}

.switch-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.switch-group label {
    margin: 0;
}
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--placeholder);
    transition: 0.3s;
    border-radius: 24px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}
input:checked + .slider {
    background-color: var(--focus-border);
}
input:checked + .slider:before {
    transform: translateX(20px);
}

.settings-divider {
    border: 0;
    height: 1px;
    background-color: var(--search-border);
    margin: 30px 0 20px 0;
}
.modal-btn.danger {
    background-color: #ff3b30;
    color: white;
}

.segmented-control {
    display: flex;
    background-color: var(--hover-bg);
    padding: 4px;
    border-radius: 12px;
    gap: 4px;
}

.segmented-control button {
    flex: 1;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.segmented-control button.active {
    background-color: var(--search-bg);
    box-shadow: 0 2px 8px var(--search-shadow);
    color: var(--text-color);
}

.segmented-control button:hover:not(.active) {
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .segmented-control button:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.05);
}

.action-group {
    display: flex;
    gap: 1px;
    background-color: var(--search-border);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--search-border);
}

.action-tile {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background-color: var(--search-bg);
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: background-color 0.2s;
    font-family: inherit;
}

.action-tile:hover {
    background-color: var(--hover-bg);
}

.action-tile svg {
    color: var(--focus-border);
}

.action-tile span {
    font-size: 0.8rem;
    font-weight: 600;
}

.about-box {
    background-color: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 0.9rem;
}

.about-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.about-name {
    font-weight: 500;
}

.about-version {
    font-size: 0.8rem;
    opacity: 0.6;
}

.about-box a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
}

.about-box.clickable {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.about-box.clickable:hover {
    background-color: var(--hover-bg);
}

.engine-option img,
#engine-icon {
    border-radius: 50%;
}