:root {
    --primary-bg: #f4f4f9;
    --secondary-bg: #ffffff;
    --text-color: #333333;
    --accent-color: #4a69bd;
    --accent-secondary: #e1e7f5;
    --accent-text-color: #ffffff;
    --border-color: #dddddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --danger-color: #c0392b;
    --study-list-color: #27ae60;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: var(--primary-bg);
    color: var(--text-color);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.app-container { display: flex; width: 100%; height: 100%; position: relative; }

#word-wheel-container {
    flex: 0 0 33vw; /* Sets the sidebar to exactly 1/3 of the screen width */
    max-width: 350px; /* Prevents it from getting too wide on large desktop monitors */
    min-width: 250px; /* Keeps it readable if the browser window is shrunk */
    background-color: var(--secondary-bg);
    border-right: 1px solid var(--border-color);
    box-shadow: 2px 0 5px var(--shadow-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.3s ease-in-out;
    z-index: 4000;
}

#word-wheel li { 
    padding: 12px 20px; 
    cursor: pointer; 
    font-size: 0.95em; 
    border-bottom: 1px solid var(--primary-bg); 
    transition: background-color 0.2s, color 0.2s; 
    
    /* The magic properties for single-line truncation with an ellipsis (...) */
    display: block;
    width: 100%;
    box-sizing: border-box;
    white-space: nowrap; 
    overflow: hidden; 
    text-overflow: ellipsis; 
}
#word-wheel-title { padding: 20px; font-size: 1.2em; font-weight: bold; border-bottom: 1px solid var(--border-color); color: var(--accent-color); text-align: center; }
#word-wheel { list-style: none; padding: 0; margin: 0; overflow-y: auto; flex-grow: 1; }
#word-wheel li { 
    padding: 12px 20px; 
    cursor: pointer; 
    font-size: 0.95em; 
    border-bottom: 1px solid var(--primary-bg); 
    transition: background-color 0.2s, color 0.2s; 
    
    /* The magic properties for single-line truncation with an ellipsis (...) */
    display: block;
    width: 100%;
    box-sizing: border-box;
    white-space: nowrap; 
    overflow: hidden; 
    text-overflow: ellipsis; 
}
#word-wheel li:hover { background-color: var(--accent-secondary); color: var(--accent-color); }
#word-wheel li.selected { background-color: var(--accent-color); color: var(--accent-text-color); font-weight: bold; }
#word-wheel li.in-study-list { color: var(--study-list-color); font-weight: 600; }
#word-wheel li.in-study-list.selected { background-color: var(--accent-color); color: var(--accent-text-color); }

#wheel-legend { padding: 15px; font-size: 0.8em; color: #777; text-align: center; border-top: 1px solid var(--border-color); flex-shrink: 0; }
#wheel-legend span { color: var(--study-list-color); font-weight: bold; }

#main-content {
    flex-grow: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    box-sizing: border-box;
    overflow-y: auto;
}

.top-controls { display: flex; align-items: center; width: 100%; max-width: 600px; margin-bottom: 30px; gap: 15px; }
.search-wrapper { position: relative; flex-grow: 1; }

#search-input { width: 100%; padding: 15px 20px; font-size: 1.1em; border-radius: 50px; border: 1px solid var(--border-color); box-shadow: 0 2px 8px var(--shadow-color); box-sizing: border-box; }
#search-input:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 0 3px rgba(74, 105, 189, 0.2); }

#suggestions-list { display: none; position: absolute; top: 100%; left: 0; right: 0; background-color: var(--secondary-bg); border: 1px solid var(--border-color); border-top: none; border-radius: 0 0 15px 15px; box-shadow: 0 8px 10px var(--shadow-color); max-height: 250px; overflow-y: auto; z-index: 1000; }
#suggestions-list div { padding: 12px 20px; cursor: pointer; }
#suggestions-list div:hover { background-color: var(--primary-bg); }

#result-display { 
    background-color: var(--secondary-bg); 
    width: 100%; 
    max-width: 600px; 
    padding: 30px; 
    border-radius: 15px; 
    box-shadow: 0 4px 12px var(--shadow-color); 
    border: 1px solid var(--border-color); 
    min-height: 150px; 
    box-sizing: border-box; 
    
    /* NEW: Prevents the mobile screen from squishing the card */
    flex-shrink: 0;
    margin-bottom: 40px; 
}
.placeholder-text { color: #999; text-align: center; font-size: 1.2em; padding: 40px 0; }

.result-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 15px; margin-bottom: 10px; }
.result-header h2 { margin: 0; color: var(--accent-color); font-size: 1.8em; word-break: break-word; }
.result-header .add-to-list-btn-action { flex-shrink: 0; }
.result-footer { display: none; }

/* NEW: Style for the part of speech */
.part-of-speech {
    font-family: 'SF Mono', SFMono-Regular, 'Courier New', monospace;
    color: #888;
    font-size: 0.9em;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 15px;
}

#result-display p { font-size: 1.1em; line-height: 1.6; margin-top: 0; }
#result-display .frequency { font-size: 0.9em; color: #777; margin-top: 20px; font-style: italic; }

/* --- One sense per line, core first and largest (owner, 2026-09-17) ----------
   Definitions carry comments both before and after a gloss, so on one run-on
   line a student cannot see which parenthetical belongs to which sense --
   `much (in the singular); (in the plural) many` reads as though the plural
   note went with "much". Each sense gets its own line and its own rule down
   the left, so a comment is visibly INSIDE one sense.

   The core is set larger and in the accent colour: it is the definition a
   student is meant to carry away, and until now it looked like any other
   sense. An entry with no core marked (the oldest hand-vetted ones) draws
   every sense at the same weight -- see formatSensesHTML in app.js.

   The heading sits above the senses, on its own line, because `(with the
   ablative)` governs all of them, not just the first. */
.senses { margin-bottom: 0; }
#result-display .def-heading {
    font-size: 0.95em;
    margin-bottom: 8px;
}
#result-display .sense {
    margin: 0 0 6px;
    padding-left: 12px;
    border-left: 2px solid var(--border-color);
}
#result-display .sense:last-child { margin-bottom: 0; }
#result-display .sense-core {
    font-size: 1.35em;
    line-height: 1.45;
    padding-bottom: 2px;
    border-left: 3px solid var(--accent-color);
}
/* A comment inside the core stays at reading size: the core's own words are
   what the larger type is for, and a long parenthetical set at 1.35em would
   shout louder than the gloss it explains. */
#result-display .sense-core .def-comment { font-size: 0.8em; }
/* The DCC link sits inside the muted italic frequency line, so it keeps that colour rather
   than taking the browser's default blue -- underlined so it still reads as a link. */
#result-display .frequency a { color: inherit; text-decoration: underline; }
#result-display .frequency a:hover { color: var(--accent-color); }

.btn { padding: 10px 15px; font-size: 0.9em; font-weight: bold; border-radius: 20px; border: none; cursor: pointer; transition: background-color 0.2s, box-shadow 0.2s; white-space: nowrap; }
.btn-primary { background-color: var(--accent-color); color: var(--accent-text-color); }
.btn-primary:hover { background-color: #3a599d; }
.btn-secondary { background-color: var(--accent-secondary); color: var(--accent-color); }
.btn-secondary:hover { background-color: #d1d9e9; }
.btn-danger { background-color: var(--danger-color); color: white; }

.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.6); z-index: 5000; justify-content: center; align-items: center; }
.modal-content { background-color: white; padding: 30px; border-radius: 15px; max-width: 600px; width: 90%; max-height: 80vh; display: flex; flex-direction: column; box-shadow: 0 5px 20px rgba(0,0,0,0.3); }
.modal-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); padding-bottom: 15px; margin-bottom: 15px; }
.modal-header h2 { margin: 0; color: var(--accent-color); }
.modal-close { font-size: 1.5em; cursor: pointer; color: #aaa; background: none; border: none; padding: 0 10px; }
.modal-body { overflow-y: auto; line-height: 1.6; }
.modal-footer { border-top: 1px solid var(--border-color); padding-top: 20px; margin-top: 20px; display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }

/* --- The About link, and the credits it opens -------------------------------
   The footer sits BELOW the result card and is pushed to the bottom of the
   scroll area by margin-top:auto, so on a short page it rests at the foot of
   the window and on a long entry it simply follows the text. It is styled as
   quiet grey type -- the same treatment as the word-wheel legend -- because it
   must be findable without competing with the search box. */
#site-footer { width: 100%; max-width: 600px; margin-top: auto; padding-bottom: 4px; text-align: center; flex-shrink: 0; }
.footer-link { background: none; border: none; font: inherit; font-size: 0.8em; color: #777; cursor: pointer; text-decoration: underline; padding: 8px 12px; border-radius: 8px; }
.footer-link:hover { color: var(--accent-color); background-color: var(--accent-secondary); }
.footer-link:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; }

.about-body p:first-child { margin-top: 0; }
.about-body h3 { color: var(--accent-color); font-size: 1.05em; margin: 22px 0 6px; }
.about-body ul { padding-left: 22px; margin: 10px 0; }
.about-body li { margin-bottom: 8px; }

#study-list-ul { list-style: none; padding: 0; }
#study-list-ul li { display: flex; justify-content: space-between; align-items: flex-start; padding: 15px 10px; border-bottom: 1px solid var(--primary-bg); }
.study-list-item-content { display: flex; flex-direction: column; margin-right: 15px; flex-grow: 1; }
.study-list-latin { font-weight: bold; color: var(--text-color); font-size: 1.1em; }
.study-list-definition { color: #555; font-size: 0.9em; margin-top: 4px; }
.study-list-frequency { color: #888; font-size: 0.8em; font-style: italic; margin-top: 6px; }
.remove-from-list-btn { background: none; border: none; color: var(--danger-color); cursor: pointer; font-size: 1.5em; font-weight: bold; padding: 0 5px; }

#toggle-word-wheel-btn, #close-word-wheel-btn { display: none; }
#mobile-menu-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 3999; }

@media (max-width: 768px) {
    #word-wheel-container {
        position: fixed; left: 0; top: 0; height: 100%; width: 80vw; max-width: 280px;
        transform: translateX(-100%); border-right: 2px solid var(--border-color);
    }
    #word-wheel-container.mobile-visible { transform: translateX(0); }
    
    #toggle-word-wheel-btn { display: block; text-align: center; }
    #close-word-wheel-btn { display: block; position: absolute; top: 10px; right: 5px; font-size: 1.5em; padding: 5px 10px; }

    #main-content { padding: 15px; }
    .top-controls { flex-direction: column-reverse; align-items: stretch; margin-bottom: 20px; gap: 10px; }
    
    #search-input, .btn { padding-top: 15px; padding-bottom: 15px; font-size: 1.1em; }
    #suggestions-list div { padding: 15px 20px; font-size: 1.1em; }

    #result-display { padding: 20px; }
    #result-display p { font-size: 1em; }

    .result-header .add-to-list-btn-action { display: none; }
    .result-footer { display: block; text-align: center; margin-top: 25px; }
    .result-footer .add-to-list-btn-action { width: 100%; }
    
    .result-header h2 { font-size: 1.1em; font-weight: bold; }
    
    #view-study-list-btn {
        background-color: var(--accent-color);
        color: var(--accent-text-color);
        border-radius: 8px;
    }
    .modal-content { width: 95%; height: 85vh; max-height: 90vh; }
}
/* NEW: Grammar Forms Section Styles */
.forms-section {
    margin: 20px 0 10px 0;
    background-color: var(--primary-bg);
    border-radius: 8px;
    padding: 12px 18px;
    border: 1px solid var(--border-color);
}
.forms-section summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--accent-color);
    outline: none;
    font-size: 1.05em;
    user-select: none;
}
.forms-list {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
    max-height: 220px; /* Introduces the scrollbar */
    overflow-y: auto;  /* Allows scrolling */
    scrollbar-width: thin; /* Makes the scrollbar look neat */
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}
.forms-list li {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95em;
    transition: background-color 0.2s;
}
.forms-list li:last-child {
    border-bottom: none;
}
.forms-list .highlighted-form {
    background-color: rgba(74, 105, 189, 0.1);
    border-radius: 6px;
    border-bottom: none;
    box-shadow: 0 0 0 1px var(--accent-secondary);
}
/* This guarantees the text AND the specific form word turn bold and blue */
.forms-list .highlighted-form,
.forms-list .highlighted-form .form-name {
    font-weight: bold;
    color: var(--accent-color);
}
.form-name {
    color: var(--text-color);
    font-weight: 600;
}
.search-form-lemma-label {
    color: #888;
    font-size: 0.9em;
    font-weight: normal;
}
.headword-comment {
    font-style: italic;
    font-weight: normal;
    color: #888;
    font-size: 0.9em;
}
/* Definition Commentary */
.def-comment {
    font-style: italic;
    color: #666; /* A soft gray to distinguish it from the black definition text */
}

/* Grammar Term Link — a real <a> to the Pharr appendix, styled to sit quietly
   inside the commentary rather than announce itself as a web link. */
.grammar-link {
    color: inherit;
    font-weight: inherit;
    font-style: inherit;   /* an <a> must not break out of the commentary italics */
    cursor: pointer;
    
    /* Split out for maximum cross-browser visibility */
    text-decoration-line: underline;
    text-decoration-style: dotted;
    text-decoration-color: #999; /* A distinct but soft gray */
    text-underline-offset: 3px;
    text-decoration-thickness: 1.5px; /* Forces the browser to actually draw the dots */
    
    transition: background-color 0.2s, text-decoration-color 0.2s;
}

.grammar-link:hover {
    background-color: rgba(0, 0, 0, 0.05); 
    text-decoration-color: #333; /* Underline gets darker on hover */
    border-radius: 3px;
}
/* Latin words within commentary */
.latin-in-context {
    font-style: normal; /* Breaks out of the commentary italics */
    font-weight: 600; /* Makes it slightly bolder */
    color: var(--text-color); /* Brings it back to the main dark text color */
}
/* Prefix-assimilation notice: shown when a search found nothing and a spelling rule
   rescued it. It must NOT read as one of the answers -- it is a lesson sitting above
   them -- so it is not clickable, has no hover state, and is tinted rather than white. */
.assimilation-notice {
    cursor: default !important;
    background-color: var(--accent-secondary);
    border-left: 4px solid var(--accent-color);
    padding: 10px 20px !important;
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: sticky;   /* stays visible while the rescued results are scrolled */
    top: 0;
    z-index: 1;
}
.assimilation-notice:hover { background-color: var(--accent-secondary) !important; }
.assim-shift {
    font-size: 1.05em;
    letter-spacing: 0.01em;
}
.assim-from {
    font-family: Georgia, "Times New Roman", serif;
    text-decoration: line-through;
    text-decoration-thickness: 1px;
    opacity: 0.75;
}
.assim-arrow { margin: 0 0.5em; color: var(--accent-color); }
.assim-to {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: bold;
    color: var(--accent-color);
}
.assim-note {
    font-size: 0.85em;
    color: #555;
    font-style: italic;
}
/* The dead-end line: no result to offer, so this is the whole answer. */
.assim-dead {
    font-style: normal;
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px dashed var(--border-color);
}
.assim-dead strong { color: var(--accent-color); }
/* Demoted styling for inflected forms in the search dropdown */
.is-form-match {
    color: #666;
    font-size: 0.95em;
    background-color: #fafafa;
    border-left: 4px solid var(--accent-secondary);
    padding-left: 25px; /* Indents the form slightly */
}
.is-form-match:hover {
    background-color: var(--primary-bg) !important;
}
/* Idiom phrases */
.idiom-phrase {
    background-color: #f9f9fa; /* A very soft, neutral light gray, distinctly not blue */
    border: 1px solid #e5e5e8; /* A much softer, less intrusive border */
    padding: 1px 4px; /* Shaved down from 6px to close the visual gap with the semicolon */
    margin: 0; /* Removed margin to prevent pushing adjacent punctuation away */
    border-radius: 4px; /* Tighter corners so it feels more like text and less like a button */
    font-size: 0.95em;
    color: var(--text-color);
    
    /* Ensures the border and padding look good if it wraps to a new line */
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}
/* --- The English side (the flip) ---------------------------------------------
   The toggle sits above the search box: which way she is looking up is the first
   thing to decide, and it must never be mistaken for a search result. */
.direction-toggle {
    display: inline-flex;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    background-color: var(--secondary-bg);
    box-shadow: 0 2px 6px var(--shadow-color);
    overflow: hidden;
    flex-shrink: 0;
}
.direction-toggle[hidden] { display: none; }
.direction-toggle button {
    font: inherit;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--accent-color);
    padding: 9px 18px;
    font-size: 0.95em;
    font-weight: 600;
}
.direction-toggle button[aria-pressed="true"] {
    background-color: var(--accent-color);
    color: var(--accent-text-color);
}
.direction-toggle button:focus-visible,
.option-latin:focus-visible, .pin-back:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* One option: the whole word is drawn, and the meaning the English reached is marked --
   a tint and a heavier rule, so it stands out without hiding the other senses. */
.option-senses { margin-top: 6px; }
#result-display .sense.sense-match {
    background-color: var(--accent-secondary);
    border-left: 3px solid var(--accent-color);
    border-radius: 0 6px 6px 0;
    padding-top: 2px;
    padding-bottom: 2px;
}

/* Suggestions: the English word, then a quiet preview of the Latin it reaches. */
.english-key { font-weight: 600; }
.english-preview { color: #888; font-size: 0.9em; margin-left: 6px; }
#suggestions-list .english-none { cursor: default; color: #777; font-style: italic; }
#suggestions-list .english-none:hover { background-color: transparent; }

/* The card for one English word: its Latin options, in the teacher's order. */
.english-heading { font-style: italic; }
.english-options { list-style: none; padding: 0; margin: 0; }
.english-option {
    padding: 14px 0 14px 14px;
    border-left: 3px solid var(--border-color);
    margin-bottom: 14px;
}
.english-option:first-child { border-left-color: var(--accent-color); }
.option-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.option-latin {
    font: inherit;
    font-size: 1.3em;
    font-weight: 700;
    color: var(--accent-color);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-align: left;
    text-decoration: underline;
    text-decoration-color: var(--accent-secondary);
    text-underline-offset: 4px;
}
.option-latin:hover { text-decoration-color: var(--accent-color); }
.option-pos {
    font-family: 'SF Mono', SFMono-Regular, 'Courier New', monospace;
    font-size: 0.8em;
    color: #888;
    text-transform: uppercase;
}
.option-gloss { font-size: 1.05em; margin-top: 4px; line-height: 1.5; }
/* The guidance line answers "which one do I want?" -- it is the point of showing both. */
.option-guidance {
    margin-top: 6px;
    padding: 6px 10px;
    background-color: var(--accent-secondary);
    border-radius: 6px;
    font-size: 0.95em;
}
.option-tag { margin-top: 6px; font-size: 0.85em; color: #777; font-style: italic; }

/* The forms strip: which form do I write? */
.forms-strip { margin-top: 10px; }
.forms-strip summary { cursor: pointer; font-weight: 600; font-size: 0.9em; color: var(--accent-color); user-select: none; }
.forms-strip ul { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.forms-caption { font-size: 0.9em !important; font-style: italic; color: #666; margin: 8px 0 0 !important; }
.form-chip {
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.9em;
    line-height: 1.4;
}
.form-chip-latin { font-weight: 700; }
.form-chip-label { color: #444; }
.form-chip-cite { color: #999; font-size: 0.85em; white-space: nowrap; }

/* The way back to the English word she clicked through from. */
.pin-back {
    font: inherit;
    font-size: 0.9em;
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    padding: 0 0 12px;
}
.pin-back:hover { text-decoration: underline; }
.pin-key { font-style: italic; font-weight: 600; }

@media (max-width: 768px) {
    .direction-toggle { align-self: stretch; }
    .direction-toggle button { flex: 1; padding: 12px 8px; }
    .option-latin { font-size: 1.15em; }
}

/* A form whose English is the word she searched for: first in the strip, and marked. */
.form-chip.form-match {
    background-color: var(--accent-secondary);
    border-color: var(--accent-color);
}
.form-chip.form-match .form-chip-latin { color: var(--accent-color); }

/* "went" is the past of "go": what a generated form is, under the heading. */
.english-inflection { font-size: 0.95em; color: #555; margin: -4px 0 10px; }
/* A note said to the English key itself (`of`: use the genitive), above any option. */
.english-note {
    margin: 0 0 12px;
    padding: 8px 12px;
    background-color: var(--accent-secondary);
    border-left: 4px solid var(--accent-color);
    border-radius: 6px;
}

/* A generated paradigm cell: correct Latin she has not read, so it sits quieter than a
   form with a citation behind it. */
.form-chip.form-generated { background-color: transparent; border-style: dashed; }
.form-chip.form-generated .form-chip-latin { font-weight: 600; color: #555; }
.form-chip.form-generated .form-chip-label { color: #777; }