*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #1f2940;
    --bg-input: #0f1626;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0b0;
    --text-muted: #6c6c80;
    --accent-green: #4ecca3;
    --accent-green-dark: #3ba882;
    --accent-blue: #3498db;
    --border-color: #2a2a4a;
    --word-bg: #232b3e;
    --word-hover: #2a3550;
    --score-color: #4ecca3;
    --toggle-bg: #2a2a4a;
    --toggle-active: #4ecca3;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --sidebar-bg: #1f2940;
    --sidebar-field-bg: #16213e;
    --sidebar-border: #2a2a4a;
    --header-bg: var(--bg-secondary);
    --header-text: var(--text-primary);
    --header-link: var(--text-secondary);
    --footer-bg: var(--bg-secondary);
    --footer-text: var(--text-secondary);
    --footer-link: var(--text-secondary);
    --footer-border: var(--border-color);
    --btn-primary-bg: var(--accent-green);
    --btn-primary-text: #fff;
    --btn-reset-bg: var(--toggle-bg);
    --btn-reset-text: var(--text-secondary);
    --content-bg: transparent;
    --content-text: var(--text-primary);
    --content-link: var(--accent-green);
    --content-h1: var(--text-primary);
    --content-h2: var(--text-primary);
    --border-radius: 10px;
}

html.light-preload body,
body.light-mode {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #e8eaed;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    --accent-green: #2d9b73;
    --accent-green-dark: #237a5a;
    --accent-blue: #2980b9;
    --border-color: #d0d4da;
    --word-bg: #e4e7ec;
    --word-hover: #d0d5dd;
    --score-color: #2d9b73;
    --toggle-bg: #c0c4cc;
    --toggle-active: #2d9b73;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --sidebar-bg: #ffffff;
    --sidebar-field-bg: #f0f2f5;
    --sidebar-border: #d0d4da;
    --header-bg: var(--bg-secondary);
    --header-text: var(--text-primary);
    --header-link: var(--text-secondary);
    --footer-bg: var(--bg-secondary);
    --footer-text: var(--text-secondary);
    --footer-link: var(--text-secondary);
    --footer-border: var(--border-color);
    --btn-primary-bg: var(--accent-green);
    --btn-primary-text: #fff;
    --btn-reset-bg: var(--toggle-bg);
    --btn-reset-text: var(--text-secondary);
    --content-bg: transparent;
    --content-text: var(--text-primary);
    --content-link: var(--accent-green);
    --content-h1: var(--text-primary);
    --content-h2: var(--text-primary);
    --border-radius: 10px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent-green);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    color: var(--accent-green-dark);
}

header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    align-items: center;
}

header nav a {
    color: var(--header-link);
    font-size: 0.95rem;
    transition: color 0.2s;
}

header nav a:hover,
header nav a.active {
    color: var(--accent-green);
    text-decoration: none;
}

.logo a {
    color: var(--header-text);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
}

.logo a:hover {
    color: var(--accent-green);
    text-decoration: none;
}

.menu-btn {
    display: inline-block;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.menu-btn:hover {
    background: var(--accent-green);
    color: #fff;
    border-color: var(--accent-green);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.mobile-menu-overlay.open {
    display: block;
    opacity: 1;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    max-width: 90vw;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 999;
    overflow-y: auto;
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}
.mobile-menu.open {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.mobile-menu-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}
.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.2s;
}
.mobile-menu-close:hover {
    color: var(--accent-green);
}

.mobile-menu-items {
    padding: 8px 0;
}
.mobile-menu-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}
.mobile-menu-item:hover {
    background: var(--bg-card);
    text-decoration: none;
}
.mobile-menu-item.active {
    border-left: 3px solid var(--accent-green);
}
.mobile-menu-item-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.mobile-menu-item-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}
.mobile-menu-item-sub {
    color: var(--text-muted);
    font-size: 0.82rem;
}
.mobile-menu-item-arrow {
    color: var(--text-muted);
    font-size: 1.4rem;
    font-weight: 300;
    margin-left: 10px;
    flex-shrink: 0;
}

@media (min-width: 769px) {
    .desktop-nav {
        display: flex;
    }
    .menu-btn {
        display: inline-block;
    }
}
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
}

main {
    flex: 1;
    padding: 0;
}

.two-col-layout {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.col-left {
    flex: 1;
    min-width: 0;
}

.col-right {
    width: 320px;
    flex-shrink: 0;
    position: sticky;
    top: 20px;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
}

.results-count {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.results-count span {
    color: var(--accent-green);
}

.settings-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
    line-height: 1;
}

.settings-btn:hover {
    color: var(--accent-green);
}

.settings-panel {
    display: none;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    overflow: hidden;
}

.settings-panel.open {
    display: block;
}

.settings-panel-inner {
    padding: 10px 16px;
    border-top: 1px solid var(--border-color);
}

.toggle-item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

.toggle-item-row + .toggle-item-row {
    border-top: 1px solid var(--border-color);
}

.toggle-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.toggle-label-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.toggle-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.toggle-switch {
    position: relative;
    width: 40px;
    height: 22px;
    background-color: var(--toggle-bg);
    border-radius: 11px;
    cursor: pointer;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.toggle-switch.active {
    background-color: var(--toggle-active);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s;
}

.toggle-switch.active::after {
    transform: translateX(18px);
}

.words-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0 0 10px 10px;
    min-height: 100px;
}

.word-tile {
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    padding: 8px 14px;
    background-color: var(--word-bg);
    border-radius: 6px;
    cursor: default;
    transition: background-color 0.2s;
    font-size: 0.95rem;
}

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

.word-tile .word-text {
    color: var(--text-primary);
    font-weight: 500;
}

.word-tile .word-score {
    color: var(--score-color);
    font-size: 0.75rem;
    font-weight: 700;
}

.word-tile.uppercase .word-text {
    text-transform: uppercase;
}

.word-tile.highlight-wordle {
    border-left: 3px solid #538d4e;
}

.word-tile.high-contrast {
    background-color: #2a3a5a;
    border: 1px solid var(--accent-green);
}

.sidebar-panel {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--sidebar-border);
    border-radius: 12px;
    overflow: hidden;
}

.sidebar-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-field {
    padding: 14px 18px 10px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-field-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 8px;
}

.sidebar-field-label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.sidebar-field-hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-style: italic;
}

.sidebar-pos-inputs {
    display: flex;
    gap: 6px;
}

.sidebar-pos-inputs input {
    width: 100%;
    max-width: 52px;
    height: 48px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    background-color: var(--sidebar-field-bg);
    border: 2px solid var(--sidebar-border);
    border-radius: 8px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.sidebar-pos-inputs input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
    opacity: 0.6;
}

.sidebar-pos-inputs input:focus {
    border-color: var(--accent-green);
}

.sidebar-pos-inputs .unknown-input {
    border-style: dashed;
}

.sidebar-pos-inputs .exclude-input {
    border-color: var(--text-muted);
}

.sidebar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--sidebar-border);
}

.btn-reset {
    background: none;
    border: none;
    color: var(--btn-reset-text);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 10px 16px;
    transition: color 0.2s;
}

.btn-reset:hover {
    color: var(--text-primary);
}

.btn-find {
    flex: 1;
    padding: 12px 24px;
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border: none;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
}

.btn-find:hover {
    background-color: var(--accent-green-dark);
}

.sidebar-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-word-links {
    display: flex;
    flex-direction: column;
}

.sidebar-link-item {
    display: flex;
    align-items: center;
    padding: 12px 18px;
    border-bottom: 1px solid var(--sidebar-border);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background-color 0.2s;
    text-decoration: none;
    gap: 8px;
}

.sidebar-link-item:last-child {
    border-bottom: none;
}

.sidebar-link-item:hover {
    background-color: var(--word-hover);
    text-decoration: none;
}

.sidebar-link-item.active {
    color: var(--accent-green);
}

.sidebar-link-hint {
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--text-muted);
    flex: 1;
}

.sidebar-link-arrow {
    color: var(--text-muted);
    font-size: 1.2rem;
    font-weight: 300;
}

.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

.content-section h1 {
    font-size: 1.8rem;
    color: var(--content-h1);
    margin-bottom: 15px;
}

.content-section h2 {
    font-size: 1.3rem;
    color: var(--content-h2);
    margin-top: 30px;
    margin-bottom: 12px;
}

.content-section p {
    color: var(--content-text);
    margin-bottom: 12px;
    line-height: 1.7;
}

.content-section ol {
    color: var(--content-text);
    margin-left: 20px;
    margin-bottom: 15px;
}

.content-section ol li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.finder-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 20px 0;
}

.finder-link-item {
    display: block;
    padding: 14px 20px;
    background-color: var(--word-bg);
    border-bottom: 1px solid var(--border-color);
    color: var(--accent-green);
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color 0.2s;
}

.finder-link-item:first-child {
    border-radius: 8px 8px 0 0;
}

.finder-link-item:last-child {
    border-radius: 0 0 8px 8px;
    border-bottom: none;
}

.finder-link-item:hover {
    background-color: var(--word-hover);
    text-decoration: none;
}

.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 25px 0;
}

footer {
    background-color: var(--footer-bg);
    border-top: 1px solid var(--footer-border);
    padding: 30px 0;
    margin-top: auto;
    color: var(--footer-text);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 25px;
}

.footer-col h4 {
    font-size: 0.85rem;
    color: var(--footer-text);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 6px;
}

.footer-col a {
    color: var(--footer-link);
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--accent-green);
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid var(--footer-border);
    color: var(--footer-text);
    font-size: 0.8rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.sitemap-section {
    margin-bottom: 30px;
}

.sitemap-section h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.sitemap-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 6px;
}

.sitemap-list li a {
    display: block;
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sitemap-list li a:hover {
    color: var(--accent-green);
}

.static-content {
    max-width: 700px;
}

.static-content h1 {
    font-size: 1.6rem;
    margin-bottom: 20px;
}

.static-content p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.no-results-msg {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 1rem;
    width: 100%;
}

.letter-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 12px;
}

.letter-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background-color: var(--word-bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.letter-nav a:hover {
    background-color: var(--accent-green);
    color: var(--bg-primary);
    text-decoration: none;
}

.letter-nav a.active {
    background-color: var(--accent-green);
    color: var(--bg-primary);
}

@media (max-width: 900px) {
    .two-col-layout {
        flex-direction: column;
    }

    .col-right {
        width: 100%;
        position: static;
    }
}

@media (max-width: 480px) {
    .sidebar-pos-inputs input {
        max-width: 42px;
        height: 42px;
        font-size: 0.95rem;
    }

    .word-tile {
        padding: 6px 10px;
        font-size: 0.85rem;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }
}

.ad-container {
    text-align: center;
    padding: 10px 0;
    margin: 10px 0;
    min-height: 50px;
    overflow: hidden;
}
.ad-container.ad-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
}
.ad-container.ad-sidebar {
    margin-top: 15px;
    padding: 10px;
    border-top: 1px solid var(--border-color);
}
.ad-container.ad-footer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
}
.ad-container.ad-body {
    max-width: 1200px;
    margin: 10px auto;
    padding: 10px 20px;
}