:root {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --text-color: #333333;
    --heading-color: #1a1a1a;
    --text-muted: #666666;
    --border-color: #dddddd;
    --btn-bg: #ffffff;
    --btn-hover: #f0f0f0;
    --shadow: 0 10px 30px rgba(0,0,0,0.05);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-color: #0d1117;
        --card-bg: #161b22;
        --input-bg: #0d1117;
        --text-color: #c9d1d9;
        --heading-color: #f0f6fc;
        --text-muted: #8b949e;
        --border-color: #30363d;
        --btn-bg: #21262d;
        --btn-hover: #30363d;
        --shadow: 0 10px 30px rgba(0,0,0,0.5);
    }
}

:root[data-theme="dark"] {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --input-bg: #0d1117;
    --text-color: #c9d1d9;
    --heading-color: #f0f6fc;
    --text-muted: #8b949e;
    --border-color: #30363d;
    --btn-bg: #21262d;
    --btn-hover: #30363d;
    --shadow: 0 10px 30px rgba(0,0,0,0.5);
}

:root[data-theme="light"] {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --text-color: #333333;
    --heading-color: #1a1a1a;
    --text-muted: #666666;
    --border-color: #dddddd;
    --btn-bg: #ffffff;
    --btn-hover: #f0f0f0;
    --shadow: 0 10px 30px rgba(0,0,0,0.05);
}


body {
    margin: 0;
    padding: 0;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height to prevent URL bar clipping on mobile */
    overflow: hidden;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
}

header {
    padding: 11px 18px 8px 18px;
    flex-shrink: 0;
    position: relative;
    z-index: 20000;
}

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: nowrap;
    white-space: nowrap;
    max-width: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.header-home-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    text-decoration: none;
    color: var(--heading-color);
    cursor: pointer;
    user-select: none;
    transition: color 0.15s ease, opacity 0.15s ease;
}

.header-home-link:hover {
    color: #2563eb;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .header-home-link:hover {
        color: #60a5fa;
    }
}

:root[data-theme="dark"] .header-home-link:hover {
    color: #60a5fa;
}

.header-home-link:active {
    opacity: 0.75;
}

.header-home-link:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 3px;
    border-radius: 4px;
}

.header-home-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke-width: 2.2;
    transition: transform 0.15s ease;
}

.header-home-link:hover .header-home-icon {
    transform: translateY(-1px);
}

.header-title-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.header-version {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    user-select: none;
    align-self: center;
    position: relative;
    top: 1px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.header-theme-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--card-bg) 85%, var(--text-color) 6%);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    user-select: none;
    padding: 0;
    transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s, transform 0.1s;
}

.header-theme-btn:hover {
    background: var(--btn-hover);
    border-color: #2563eb;
    color: #2563eb;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .header-theme-btn:hover {
        border-color: #60a5fa;
        color: #60a5fa;
    }
}

:root[data-theme="dark"] .header-theme-btn:hover {
    border-color: #60a5fa;
    color: #60a5fa;
}

.header-theme-btn:active {
    transform: scale(0.92);
}

.header-theme-btn:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .header-theme-btn:focus-visible {
        outline-color: #60a5fa;
    }
}

:root[data-theme="dark"] .header-theme-btn:focus-visible {
    outline-color: #60a5fa;
}

.header-theme-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2.2;
    flex-shrink: 0;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.header-theme-btn:hover .header-theme-icon {
    transform: rotate(20deg);
}

.theme-icon-sun {
    display: none;
}
.theme-icon-moon {
    display: block;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-icon-sun {
        display: block;
    }
    :root:not([data-theme="light"]) .theme-icon-moon {
        display: none;
    }
}

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

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

.header-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--card-bg) 85%, var(--text-color) 6%);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    user-select: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s, transform 0.1s;
}

.header-share-btn:hover {
    background: var(--btn-hover);
    border-color: #2563eb;
    color: #2563eb;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .header-share-btn:hover {
        border-color: #60a5fa;
        color: #60a5fa;
    }
}

:root[data-theme="dark"] .header-share-btn:hover {
    border-color: #60a5fa;
    color: #60a5fa;
}

.header-share-btn:active {
    transform: scale(0.97);
}

.header-share-btn.copied {
    border-color: #10b981;
    color: #10b981;
    background: color-mix(in srgb, #10b981 12%, var(--card-bg));
}

.header-share-icon {
    width: 14px;
    height: 14px;
    stroke-width: 2.2;
    flex-shrink: 0;
}

main {
    flex: 1;
    width: auto;
    align-self: stretch;
    background: var(--card-bg);
    padding: 10px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    margin: 0 10px 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    min-height: 0;
    min-width: 0;
}
bible-word-map {
    display: flex;
    flex-direction: column;
    flex: 1;
    width: 100%;
    min-height: 0;
    min-width: 0;
}

footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 4px 12px 8px 12px;
    flex-shrink: 0;
    font-size: 0.85em;
    background: transparent;
    color: var(--text-muted);
}
.footer-about-btn {
    background: none;
    border: none;
    padding: 2px 6px;
    font-family: inherit;
    font-size: inherit;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.15s ease, background-color 0.15s ease;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.footer-about-btn:hover {
    color: #2563eb;
    background-color: color-mix(in srgb, var(--card-bg) 70%, var(--text-color) 8%);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .footer-about-btn:hover {
        color: #60a5fa;
    }
}
:root[data-theme="dark"] .footer-about-btn:hover {
    color: #60a5fa;
}
.footer-divider {
    color: var(--border-color);
    user-select: none;
    font-size: 0.8em;
}
.footer-quote {
    color: var(--text-muted);
    user-select: none;
}

/* Mobile responsive styles */
@media (max-width: 768px) {
    header {
        padding: 4px 8px 3px 8px;
    }
    .header-row {
        gap: 8px;
    }
    .header-right {
        gap: 6px;
    }
    .header-home-icon {
        width: 17px;
        height: 17px;
    }
    .header-title-text {
        font-size: 1.05rem;
    }
    .header-version {
        font-size: 0.65rem;
    }
    .header-theme-btn {
        width: 28px;
        height: 28px;
    }
    .header-theme-icon {
        width: 14px;
        height: 14px;
    }
    .header-share-btn {
        padding: 4px 10px;
        font-size: 0.78rem;
    }
    .header-share-icon {
        width: 12px;
        height: 12px;
    }
    main {
        padding: 5px;
        margin: 0 5px 2px 5px;
    }
    footer {
        padding: 1px 6px 4px 6px;
        font-size: 0.76em;
        gap: 6px;
    }
}


/* Legend Line Indicators */
.legend-line {
    display: inline-block;
    width: 22px;
    height: 3px;
    border-radius: 2px;
    flex-shrink: 0;
}
.legend-line-direct {
    background-color: #16a34a;
}
.legend-line-indirect {
    background-color: #94a3b8;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .legend-line-direct {
        background-color: #4ade80;
    }
    :root:not([data-theme="light"]) .legend-line-indirect {
        background-color: #64748b;
    }
}
:root[data-theme="dark"] .legend-line-direct {
    background-color: #4ade80;
}
:root[data-theme="dark"] .legend-line-indirect {
    background-color: #64748b;
}
.info-close:hover {
    color: var(--text-color);
}

@media (max-width: 768px) {
    header {
        position: relative;
        z-index: 20000;
    }
}

@media (max-width: 380px) {
    header {
        padding: 3px 4px;
    }
    .header-row {
        gap: 5px;
    }
    .header-right {
        gap: 4px;
    }
    h1 {
        font-size: 0.92rem;
    }
}