/* ============================================================
   FONTS — self-hosted so they work offline and send no data to third parties
   ============================================================ */
@font-face {
    font-family: 'Lexend';
    src: url('../fonts/Lexend-Regular.woff2') format('woff2');
    font-weight: 300 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Lexend';
    src: url('../fonts/Lexend-SemiBold.woff2') format('woff2');
    font-weight: 600 800;
    font-style: normal;
    font-display: swap;
}

/* ============================================================
   DESIGN TOKENS — Light mode
   All text/background pairs meet WCAG 2.2 AA (4.5:1 or better).
   ============================================================ */
:root {
    --bg-color: #f4f4f9;
    --text-color: #333333;
    --muted-text: #555555;
    --card-bg: #ffffff;
    --primary-color: #0056b3;   /* 7.0:1 with white */
    --on-primary: #ffffff;
    --secondary-bg: #5a6268;    /* 6.2:1 with white */
    --success-bg: #1e7e34;      /* 5.1:1 with white */
    --danger-bg: #b02a37;       /* 6.5:1 with white */
    --warning-bg: #ffc107;
    --on-warning: #000000;
    --card-shadow: 0 4px 6px rgba(0,0,0,0.05);
    --card-shadow-hover: 0 12px 24px rgba(0,86,179,0.15);
    --border-color: #dde1e6;
    --header-bg: #0056b3;
    --header-text: #ffffff;
    --focus-color: #b35c00;
    --pivot-color: #c62828;

    --syl-0: #1565c0;
    --syl-1: #b71c1c;
    --syl-2: #1b5e20;
    --syl-3: #6a1b9a;
}

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --muted-text: #b8b8b8;
    --card-bg: #1e1e1e;
    --primary-color: #4da3ff;
    --on-primary: #0b1220;      /* dark text on light-blue buttons: 7.1:1 */
    --secondary-bg: #5a6268;
    --success-bg: #1e7e34;
    --danger-bg: #b02a37;
    --card-shadow: 0 4px 6px rgba(0,0,0,0.3);
    --card-shadow-hover: 0 12px 24px rgba(77,163,255,0.2);
    --border-color: #333333;
    --header-bg: #1a1a1a;
    --header-text: #e0e0e0;
    --focus-color: #ff9900;
    --pivot-color: #ff6b6b;

    --syl-0: #64b5f6;
    --syl-1: #ef9a9a;
    --syl-2: #a5d6a7;
    --syl-3: #ce93d8;
}

/* ============================================================
   BASE
   ============================================================ */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Font preference (class is set on <html> by common.js) */
.font-lexend body { font-family: 'Lexend', sans-serif; }
.font-comic body  { font-family: 'Comic Sans MS', 'Chalkboard SE', 'Comic Neue', sans-serif; }

h1, h2 { line-height: 1.25; }
h3 { margin-top: 0; color: var(--primary-color); }
a { color: var(--primary-color); }

.visually-hidden {
    position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ============================================================
   SKIP LINK & FOCUS
   ============================================================ */
.skip-link {
    position: absolute; top: -100%; left: 0;
    padding: 10px 18px;
    background: var(--primary-color); color: var(--on-primary);
    font-weight: bold; font-size: 14px; text-decoration: none;
    border-radius: 0 0 6px 0; z-index: 10001;
    transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

*:focus-visible {
    outline: 3px solid var(--focus-color);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ============================================================
   HEADER & PREFERENCES BAR
   ============================================================ */
header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 30px 20px;
    text-align: center;
}
header h1 { margin: 0 0 8px; }
header p { margin: 0; }

.preferences-bar {
    display: flex; justify-content: center; gap: 15px; padding: 12px 15px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}
.preferences-bar select,
.preferences-bar button {
    padding: 8px 16px; border-radius: 20px;
    border: 1px solid var(--primary-color);
    background: transparent; color: var(--text-color);
    font: inherit; font-size: 14px; font-weight: bold; cursor: pointer;
}
.preferences-bar button:hover,
.preferences-bar select:hover { background-color: var(--primary-color); color: var(--on-primary); }

/* ============================================================
   LAYOUT
   ============================================================ */
.container { max-width: 900px; margin: 32px auto; padding: 0 20px; }
.container.narrow { max-width: 560px; }

.back-link {
    display: inline-block; margin-bottom: 20px;
    color: var(--primary-color); text-decoration: none; font-weight: bold;
}
.back-link:hover { text-decoration: underline; }

.site-footer {
    max-width: 900px; margin: 40px auto 0; padding: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 14px; color: var(--muted-text); text-align: center;
}
.site-footer p { margin: 4px 0; }

.privacy-note {
    display: inline-flex; gap: 8px; align-items: center;
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 999px; padding: 6px 14px; font-size: 14px; margin-top: 14px;
    color: var(--text-color);   /* don't inherit the header's white text */
}

/* ============================================================
   SHARED FORM CONTROLS & BUTTONS
   ============================================================ */
.field-label { font-weight: bold; display: block; margin-bottom: 6px; }

textarea.tool-input {
    width: 100%; height: 150px; margin-bottom: 16px; padding: 10px;
    border-radius: 4px; border: 1px solid var(--primary-color);
    font: inherit; font-size: 16px; box-sizing: border-box;
    background: var(--bg-color); color: var(--text-color);
    resize: vertical;
}

.action-row { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.action-row .btn { flex: 1; }

.btn {
    padding: 10px 20px; font: inherit; font-size: 16px; font-weight: bold;
    cursor: pointer; border: none; border-radius: 4px;
    background-color: var(--primary-color); color: var(--on-primary);
    white-space: nowrap;
}
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-secondary { background-color: var(--secondary-bg); color: #fff; }
.btn-success   { background-color: var(--success-bg); color: #fff; }
.btn-danger    { background-color: var(--danger-bg); color: #fff; }
.btn-warning   { background-color: var(--warning-bg); color: var(--on-warning); }

.output-box {
    background: var(--card-bg); padding: 20px; border-radius: 8px;
    box-shadow: var(--card-shadow); min-height: 100px;
    font-size: 18px; line-height: 1.6; color: var(--text-color);
    border: 1px solid var(--border-color);
    overflow-wrap: break-word;
}
.output-box.pre { white-space: pre-wrap; }
.placeholder-text { opacity: 0.65; font-style: italic; }

.panel {
    background: var(--card-bg); padding: 16px 20px; border-radius: 8px;
    box-shadow: var(--card-shadow); border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.tool-note { font-size: 14px; color: var(--muted-text); }

kbd {
    border: 1px solid var(--border-color); border-bottom-width: 2px;
    border-radius: 4px; padding: 0 5px; font-size: 0.9em; background: var(--card-bg);
}

/* ============================================================
   TOOL GRID & CARDS (hub page)
   ============================================================ */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px; margin-top: 24px;
    list-style: none; padding: 0;
}
.tool-card {
    height: 100%; box-sizing: border-box;
    background: var(--card-bg); padding: 28px 20px; border-radius: 12px;
    box-shadow: var(--card-shadow); text-align: center; text-decoration: none;
    color: inherit; border: 2px solid var(--border-color);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    display: flex; flex-direction: column; align-items: center;
}
.tool-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); border-color: var(--primary-color); }
.tool-card p { margin-bottom: 0; }
.card-icon { font-size: 40px; margin-bottom: 12px; }

/* ============================================================
   SYLLABLE HIGHLIGHTER
   ============================================================ */
.syl-0 { color: var(--syl-0); font-weight: 700; }
.syl-1 { color: var(--syl-1); font-weight: 700; }
.syl-2 { color: var(--syl-2); font-weight: 700; }
.syl-3 { color: var(--syl-3); font-weight: 700; }
.syl-dot { color: var(--text-color); opacity: 0.4; font-size: 0.65em; vertical-align: middle; margin: 0 1px; user-select: none; }

.syllable-output { font-size: 22px; line-height: 2; word-spacing: 0.15em; white-space: pre-wrap; }

/* ============================================================
   TEXT-TO-SPEECH CONTROLS
   ============================================================ */
.tts-controls { margin-bottom: 14px; }
.tts-bar {
    display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 8px; padding: 10px 14px;
}
.tts-bar button {
    padding: 7px 14px; font: inherit; font-size: 14px; font-weight: bold; cursor: pointer;
    border: none; border-radius: 4px;
    background-color: var(--primary-color); color: var(--on-primary);
}
.tts-bar button:disabled { opacity: 0.45; cursor: default; }
.tts-rate-group, .tts-voice-group { display: flex; align-items: center; gap: 6px; }
.tts-label { font-size: 13px; font-weight: bold; white-space: nowrap; }
.tts-rate-select, .tts-voice-select {
    padding: 5px 8px; border: 1px solid var(--primary-color); border-radius: 4px;
    font-size: 13px; background: var(--bg-color); color: var(--text-color); max-width: 180px;
}
.tts-unavailable { font-size: 13px; opacity: 0.7; margin: 0; padding: 8px 0; }
.tts-current { background-color: rgba(255, 220, 0, 0.6); color: #000; border-radius: 3px; padding: 0 1px; }

/* ============================================================
   WORD PREDICTION DROPDOWN
   ============================================================ */
.wp-dropdown {
    position: absolute; z-index: 9500;
    background: var(--card-bg); border: 2px solid var(--primary-color);
    border-radius: 6px; box-shadow: 0 6px 20px rgba(0,0,0,0.18);
    display: none; max-height: 220px; overflow-y: auto;
}
.wp-item {
    padding: 9px 14px; cursor: pointer; font-size: 15px; color: var(--text-color);
    border-bottom: 1px solid var(--border-color); user-select: none;
}
.wp-item:last-child { border-bottom: none; }
.wp-item strong { color: var(--primary-color); }
.wp-item:hover, .wp-item.wp-selected { background-color: var(--primary-color); color: var(--on-primary); }
.wp-item:hover strong, .wp-item.wp-selected strong { color: var(--on-primary); }

/* ============================================================
   PRINT
   ============================================================ */
@media print {
    .no-print, .preferences-bar, .skip-link, .back-link, .site-footer,
    .tts-controls, button, textarea, input, select, .wp-dropdown,
    .tool-intro { display: none !important; }

    body { background: white !important; color: black !important; font-size: 12pt; }
    h1 { font-size: 16pt; color: black !important; }

    .output-box {
        box-shadow: none !important; border: none !important; padding: 0 !important;
        background: white !important; color: black !important;
    }
    /* Most tools print at a sensible size; the dyslexia converter keeps the user's chosen settings */
    .output-box:not(.keep-format) { font-size: 13pt !important; line-height: 1.7 !important; }
    .output-box.keep-format {
        background: var(--print-tint, white) !important;
        color: var(--print-ink, black) !important;
        -webkit-print-color-adjust: exact; print-color-adjust: exact;
        padding: 12pt !important;
    }

    .syl-0 { color: #1565c0 !important; }
    .syl-1 { color: #b71c1c !important; }
    .syl-2 { color: #1b5e20 !important; }
    .syl-3 { color: #6a1b9a !important; }
    .syllable-output * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}