/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-tertiary: #e8e8ed;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;
    --border: rgba(0, 0, 0, 0.08);
    --border-strong: rgba(0, 0, 0, 0.12);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
    --glass: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.5);
    --accent: #0071e3;
    --accent-hover: #0077ed;
    --danger: #ff3b30;
    --danger-hover: #ff453a;
    --radius: 16px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --transition: 0.2s ease;
    --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
    --bg: #000000;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --text: #f5f5f7;
    --text-secondary: #a1a1a6;
    --text-tertiary: #6e6e73;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.12);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.2);
    --glass: rgba(28, 28, 30, 0.72);
    --glass-border: rgba(255, 255, 255, 0.06);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===== Header ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

.icon-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Auto theme - show both based on system */
[data-theme="system"] .icon-sun { display: none; }
[data-theme="system"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
    [data-theme="system"] .icon-sun { display: block; }
    [data-theme="system"] .icon-moon { display: none; }
}

/* ===== Main ===== */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 24px 24px;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

/* ===== Greeting ===== */
.greeting-section {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeIn 0.6s ease;
}

.greeting {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.datetime {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.time {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.1;
}

.date {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===== Search ===== */
.search-section {
    width: 100%;
    max-width: 600px;
    margin-bottom: 48px;
    animation: fadeIn 0.6s ease 0.1s both;
}

.search-wrapper {
    position: relative;
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px 4px 4px 18px;
    transition: all var(--transition);
    box-shadow: var(--shadow);
    position: relative;
}

.search-bar:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

.search-icon {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-family: var(--font);
    padding: 12px 12px;
    color: var(--text);
    outline: none;
}

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

.engine-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font);
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.engine-selector:hover {
    background: var(--border-strong);
}

.engine-dropdown {
    position: fixed;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 160px;
    display: none;
}

.engine-dropdown.open {
    display: block;
}

.engine-option {
    display: block;
    width: 100%;
    padding: 10px 14px;
    border: none;
    background: transparent;
    font-size: 0.9375rem;
    font-family: var(--font);
    color: var(--text);
    text-align: left;
    border-radius: var(--radius-xs);
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.engine-option:hover {
    background: var(--bg-secondary);
}

.engine-option:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

/* ===== Shortcuts ===== */
.shortcuts-section {
    width: 100%;
    animation: fadeIn 0.6s ease 0.2s both;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 16px;
}

.shortcut-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    color: inherit;
    position: relative;
    user-select: none;
}

.shortcut-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
}

.shortcut-card:active {
    transform: translateY(0);
}

.shortcut-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.shortcut-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.shortcut-card.drag-over {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.shortcut-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    overflow: hidden;
    flex-shrink: 0;
}

.shortcut-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.shortcut-icon .fallback-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.08), rgba(0, 113, 227, 0.15));
}

.shortcut-name {
    font-size: 0.8125rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shortcut-actions {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition);
}

.shortcut-card:hover .shortcut-actions {
    opacity: 1;
}

.shortcut-action-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.shortcut-action-btn:hover {
    background: var(--bg);
    color: var(--text);
}

.shortcut-action-btn.delete:hover {
    background: var(--danger);
    color: white;
}

.add-card {
    border-style: dashed;
    border-color: var(--border-strong);
    cursor: pointer;
}

.add-card:hover {
    border-color: var(--accent);
    background: rgba(0, 113, 227, 0.04);
}

.add-icon {
    color: var(--text-tertiary);
    transition: color var(--transition);
}

.add-card:hover .add-icon {
    color: var(--accent);
}

/* ===== Footer ===== */
.footer {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 20px 24px;
    border-top: 1px solid var(--border);
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.footer-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-size: 0.875rem;
    font-family: var(--font);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition);
}

.footer-btn:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

.footer-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    padding: 24px;
}

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

.modal {
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    transform: scale(0.95) translateY(8px);
    transition: transform 0.2s ease;
}

.modal-overlay.open .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 0;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--bg-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text);
}

.modal-body {
    padding: 20px 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 0 24px 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xs);
    font-size: 1rem;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-secondary);
    outline: none;
    transition: all var(--transition);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

/* ===== Buttons ===== */
.btn {
    padding: 8px 18px;
    border: none;
    border-radius: var(--radius-xs);
    font-size: 0.9375rem;
    font-family: var(--font);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text);
}

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

.btn-danger {
    background: rgba(255, 59, 48, 0.1);
    color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

/* ===== Settings ===== */
.modal-settings {
    max-width: 400px;
}

.settings-body {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.settings-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.settings-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.9375rem;
    color: var(--text);
    transition: background var(--transition);
}

.radio-option:hover {
    background: var(--bg-secondary);
}

.radio-option input[type="radio"] {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

.settings-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ===== Confirm Modal ===== */
.modal-confirm {
    max-width: 380px;
}

.modal-confirm .modal-body p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.shortcut-card {
    animation: cardAppear 0.3s ease both;
}

/* Stagger animation for cards */
.shortcut-card:nth-child(1) { animation-delay: 0.0s; }
.shortcut-card:nth-child(2) { animation-delay: 0.04s; }
.shortcut-card:nth-child(3) { animation-delay: 0.08s; }
.shortcut-card:nth-child(4) { animation-delay: 0.12s; }
.shortcut-card:nth-child(5) { animation-delay: 0.16s; }
.shortcut-card:nth-child(6) { animation-delay: 0.20s; }
.shortcut-card:nth-child(7) { animation-delay: 0.24s; }
.shortcut-card:nth-child(8) { animation-delay: 0.28s; }
.shortcut-card:nth-child(9) { animation-delay: 0.32s; }
.shortcut-card:nth-child(10) { animation-delay: 0.36s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header {
        padding: 12px 16px;
    }

    .main {
        padding: 24px 16px;
    }

    .greeting {
        font-size: 1.75rem;
    }

    .time {
        font-size: 2.25rem;
    }

    .search-section {
        margin-bottom: 32px;
    }

    .shortcuts-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        gap: 12px;
    }

    .shortcut-card {
        padding: 16px 8px;
    }

    .shortcut-icon {
        width: 40px;
        height: 40px;
    }

    .shortcut-icon img {
        width: 28px;
        height: 28px;
    }

    .shortcut-name {
        font-size: 0.75rem;
    }

    .footer {
        padding: 12px 16px;
    }

    .footer-btn span {
        display: none;
    }
}

@media (max-width: 480px) {
    .greeting-section {
        margin-bottom: 28px;
    }

    .greeting {
        font-size: 1.5rem;
    }

    .time {
        font-size: 2rem;
    }

    .shortcuts-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 10px;
    }

    .section-title {
        font-size: 1.125rem;
    }
}

@media (min-width: 1200px) {
    .main {
        padding-top: 60px;
    }

    .greeting {
        font-size: 3rem;
    }

    .time {
        font-size: 3.5rem;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ===== Selection ===== */
::selection {
    background: rgba(0, 113, 227, 0.2);
    color: var(--text);
}