/* --- Root Variables & Base --- */
:root {
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Georgia", "Times New Roman", serif; /* For potential Tifinagh or specific text */
    --border-radius: 0.3rem;
    --transition-speed: 0.2s;
}

/* Light Theme (Default) */
body {
    --primary-bg: #FFFFFF;
    --secondary-bg: #F8F9FA;
    --primary-text: #212529;
    --secondary-text: #495057;
    --accent-color: #007bff;
    --accent-text: #FFFFFF;
    --highlight-color: #e8bd5b; /* Softer yellow */
    --border-color: #DEE2E6;
    --card-bg: #FFFFFF;
    --card-border: #E0E0E0;
    --header-bg: #0056b3;
    --header-text: #FFFFFF;
    --button-bg: var(--accent-color);
    --button-text: var(--accent-text);
    --link-color: var(--accent-color);
    --placeholder-text-color: #6c757d;
}

/* Dark Theme */
body.dark-theme {
    --primary-bg: #222831;
    --secondary-bg: #1a1e23; /* Slightly darker for overall bg */
    --primary-text: #EEEEEE;
    --secondary-text: #adb5bd;
    --accent-color: #FFD369;
    --accent-text: #222831;
    --highlight-color: #FFD369;
    --border-color: #454d55;
    --card-bg: #2a2f37;
    --card-border: #393E46;
    --header-bg: #1f2327; /* Even darker */
    --header-text: #FFD369;
    --button-bg: var(--accent-color);
    --button-text: var(--accent-text);
    --link-color: var(--accent-color);
    --placeholder-text-color: #6c757d;
}

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

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    background-color: var(--secondary-bg);
    color: var(--primary-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Header --- */
header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 1rem 1.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative; /* For theme switcher positioning */
}
header h1 {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    margin-bottom: 0.25rem;
}
.subtitle {
    font-size: clamp(0.8rem, 2.5vw, 0.9rem);
    opacity: 0.85;
    font-weight: 300;
}

/* --- Theme Switcher --- */
.theme-switcher {
    position: absolute;
    top: 0.75rem;
    right: 1rem;
}
#theme-toggle-btn {
    background: none;
    color: var(--header-text);
    border: 1px solid var(--header-text);
    padding: 0.4rem 0.6rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    line-height: 1; /* Ensure icon is centered */
}
#theme-toggle-btn:hover {
    background-color: rgba(255,255,255,0.1);
}
body.dark-theme #theme-toggle-btn {
    border-color: var(--accent-color);
    color: var(--accent-color);
}
body.dark-theme #theme-toggle-btn:hover {
    background-color: rgba(0,0,0,0.2);
}


/* --- Main Content --- */
main {
    flex-grow: 1;
    padding: 1.5rem 1rem;
    max-width: 750px;
    margin: 0 auto;
    width: 100%;
}

/* --- Search --- */
.search-container {
    position: relative;
    margin-bottom: 1.5rem;
}
#search-input {
    width: 100%;
    padding: 0.8rem 2.8rem 0.8rem 1rem; /* Space for clear button */
    font-size: 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--primary-bg);
    color: var(--primary-text);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
#search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(var(--accent-color-rgb, 0, 123, 255), 0.25); /* Use RGB for box-shadow alpha */
}
#search-input::placeholder {
    color: var(--placeholder-text-color);
    opacity: 0.8;
}
#clear-search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--secondary-text);
    padding: 0.25rem 0.5rem;
    line-height: 1;
}
#clear-search-btn:hover {
    color: var(--primary-text);
}

/* Autocomplete */
.autocomplete-items {
    position: absolute;
    border: 1px solid var(--border-color);
    border-top: none;
    z-index: 100;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card-bg);
    max-height: 250px;
    overflow-y: auto;
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.autocomplete-items div {
    padding: 0.6rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}
.autocomplete-items div:last-child {
    border-bottom: none;
}
.autocomplete-items div:hover,
.autocomplete-items div.autocomplete-active { /* For keyboard navigation */
    background-color: var(--accent-color);
    color: var(--accent-text);
}
.autocomplete-items div .lang-hint {
    font-size: 0.8em;
    opacity: 0.7;
    margin-left: 0.5em;
}


/* --- Controls (History/Favorites) --- */
.controls {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap; /* Allow wrapping on small screens */
}
.control-btn {
    padding: 0.6rem 1rem;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color var(--transition-speed);
}
.control-btn:hover {
    opacity: 0.85;
}
.small-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

.collapsible-section {
    background-color: var(--card-bg);
    padding: 1.25rem;
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}
.collapsible-section h2 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
    color: var(--primary-text);
}
.collapsible-section ul {
    list-style: none;
    padding: 0;
    max-height: 200px; /* Or desired height */
    overflow-y: auto;
}
.collapsible-section li {
    padding: 0.6rem 0.2rem;
    border-bottom: 1px dashed var(--border-color);
    cursor: pointer;
    font-size: 0.95rem;
    transition: color var(--transition-speed);
}
.collapsible-section li:hover {
    color: var(--accent-color);
}
.collapsible-section li:last-child {
    border-bottom: none;
}

/* --- Results --- */
#results-container .placeholder-text {
    text-align: center;
    color: var(--secondary-text);
    font-style: italic;
    padding: 2rem 0;
}

.entry-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.entry-card .english-word {
    font-size: clamp(1.6rem, 4vw, 2rem);
    font-weight: 600; /* Semi-bold for emphasis */
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}
.entry-card .title-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.entry-card .favorite-btn, .entry-card .share-btn {
    background: none;
    border: none;
    font-size: 1.3rem; /* Slightly smaller for less dominance */
    cursor: pointer;
    color: var(--secondary-text);
    padding: 0.3rem;
    transition: color var(--transition-speed);
}
.entry-card .favorite-btn:hover, .entry-card .share-btn:hover {
    color: var(--accent-color);
}
.entry-card .favorite-btn.favorited {
    color: var(--highlight-color);
}


.definition-type-block {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border-color);
}
.definition-type-block:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.definition-type-block .type {
    font-style: italic;
    color: var(--secondary-text);
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
}
.meaning-block {
    margin-bottom: 1rem;
    padding-left: 1rem;
    /* border-left: 3px solid var(--accent-color); */
}
.meaning-block .definition-text {
    font-weight: 500;
    margin-bottom: 0.6rem;
    color: var(--primary-text);
    font-size: 1.05rem;
}
.subtype-block {
    margin-top: 0.5rem;
}
.subtype-block .subtype {
    font-size: 0.9rem;
    color: var(--secondary-text);
    margin-bottom: 0.3rem;
    font-style: italic;
}
.amazigh-equivalent {
    margin-bottom: 0.75rem;
    padding-left: 1rem; /* Indent Amazigh translations */
    position: relative;
}
.amazigh-equivalent::before { /* Optional: custom bullet for Amazigh words */
    content: "›"; /* or "•" or an Amazigh character like ⵣ if appropriate and small */
    position: absolute;
    left: 0;
    color: var(--highlight-color);
    font-weight: bold;
}

.amazigh-word {
    font-weight: 500;
    color: var(--primary-text); /* Primary text for readability */
    font-size: 1.1rem;
}
/* Specific style for Amazigh text with lang attribute */
[lang="zgh"] {
    /* Add any Tachelhit-specific font adjustments here if needed */
    /* Example: font-family: "Your Tachelhit Font", var(--font-sans); */
}
.example[lang="zgh"] { /* Ensure examples also get lang attribute */
    font-size: 0.9rem;
    color: var(--secondary-text);
    font-style: italic;
    padding-left: 1rem; /* Match amazigh-equivalent indent */
    margin-top: 0.25rem;
    display: block;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 1.5rem 1rem;
    background-color: var(--header-bg);
    color: var(--header-text);
    font-size: 0.85rem;
    margin-top: auto; /* Pushes footer to bottom */
}
footer #current-year {
    font-weight: normal;
}
footer a {
    color: var(--accent-color);
    text-decoration: none;
}
footer a:hover {
    text-decoration: underline;
}


/* --- Responsive Adjustments --- */
@media (max-width: 600px) {
    main {
        width: 100%;
        padding: 1rem 0.75rem;
    }
    header h1 {
        font-size: 1.6rem;
    }
    .subtitle {
        font-size: 0.85rem;
    }
    .entry-card .english-word {
        font-size: 1.4rem;
    }
    #search-input {
        font-size: 1rem;
        padding: 0.7rem 2.5rem 0.7rem 0.8rem;
    }
    .controls {
        flex-direction: column;
    }
    .controls button {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    .collapsible-section ul {
        max-height: 150px;
    }
}