/* ==========================================================================
   OpenMind — shared tokens, resets and the widgets both pages use
   (buttons, inputs, dialogs, toasts, context menu).

   The brand tokens mirror style.css's :root so the tool looks like the rest of
   Super Learner Academy; the surface/ink tokens are new, because this app has a
   dark mode and the marketing site does not. Dark mode follows the OS by
   default and is overridden by [data-theme] once the user picks a side.
   ========================================================================== */

:root {
    /* Brand — same values as style.css */
    --deep-learning-blue: #0B2A5B;
    --memory-orange: #FF6B00;
    --success-gold: #FFC107;
    --growth-green: #34A853;
    --smart-blue: #1E5EFF;
    --red-orange: #ff5e3a;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Surfaces */
    --om-bg: #f4f6fb;
    --om-surface: #ffffff;
    --om-surface-2: #f7f9fd;
    --om-surface-3: #eef2f9;
    --om-border: #dde4f0;
    --om-border-strong: #c6d1e4;

    /* Ink */
    --om-ink: #16223a;
    --om-ink-2: #4b5870;
    --om-ink-3: #78849c;

    --om-accent: var(--memory-orange);
    --om-accent-ink: #ffffff;
    --om-focus: #1E5EFF;
    --om-danger: #d92d20;

    --om-radius: 12px;
    --om-radius-sm: 8px;
    --om-shadow: 0 4px 18px rgba(11, 42, 91, 0.08);
    --om-shadow-lg: 0 18px 50px rgba(11, 42, 91, 0.18);

    --om-topbar-h: 46px;
    --om-toolbar-h: 46px;
    --om-status-h: 32px;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --om-bg: #0e1526;
        --om-surface: #151d31;
        --om-surface-2: #1b2439;
        --om-surface-3: #222c44;
        --om-border: #2a3550;
        --om-border-strong: #3a4970;
        --om-ink: #e8edf8;
        --om-ink-2: #aab6cd;
        --om-ink-3: #8592ad;
        --om-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
        --om-shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.55);
    }
}

:root[data-theme="dark"] {
    --om-bg: #0e1526;
    --om-surface: #151d31;
    --om-surface-2: #1b2439;
    --om-surface-3: #222c44;
    --om-border: #2a3550;
    --om-border-strong: #3a4970;
    --om-ink: #e8edf8;
    --om-ink-2: #aab6cd;
    --om-ink-3: #8592ad;
    --om-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
    --om-shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.55);
}

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

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    color: var(--om-ink);
    background: var(--om-bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-heading); }

a { color: var(--smart-blue); }

:focus-visible {
    outline: 2px solid var(--om-focus);
    outline-offset: 2px;
}

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

/* ------------------------------------------------------------- controls */

.mm-btn,
.om-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--om-border-strong);
    border-radius: var(--om-radius-sm);
    background: var(--om-surface);
    color: var(--om-ink);
    font: 600 14px/1 var(--font-body);
    cursor: pointer;
    text-decoration: none;
    transition: background .18s ease, border-color .18s ease, transform .1s ease;
}

.mm-btn:hover,
.om-btn:hover { background: var(--om-surface-3); }
.mm-btn:active,
.om-btn:active { transform: translateY(1px); }
.mm-btn:disabled { opacity: .45; cursor: not-allowed; }

.mm-btn-primary,
.om-btn-primary {
    background: var(--om-accent);
    border-color: var(--om-accent);
    color: var(--om-accent-ink);
}
.mm-btn-primary:hover,
.om-btn-primary:hover { background: #e85f00; border-color: #e85f00; }

.mm-btn-danger { border-color: var(--om-danger); color: var(--om-danger); }
.mm-btn-danger.mm-btn-primary { background: var(--om-danger); color: #fff; }

.mm-btn-sm { padding: 6px 10px; font-size: 12.5px; }

.mm-input {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--om-border-strong);
    border-radius: var(--om-radius-sm);
    background: var(--om-surface);
    color: var(--om-ink);
    font: 400 14px/1.4 var(--font-body);
}
.mm-input-sm { padding: 5px 8px; font-size: 13px; }
.mm-textarea { min-height: 150px; resize: vertical; line-height: 1.5; }

/* --------------------------------------------------------------- dialogs */

.mm-dialog {
    border: none;
    padding: 0;
    width: min(460px, calc(100vw - 32px));
    border-radius: var(--om-radius);
    background: var(--om-surface);
    color: var(--om-ink);
    box-shadow: var(--om-shadow-lg);
}
.mm-dialog.is-wide { width: min(720px, calc(100vw - 32px)); }
.mm-dialog::backdrop { background: rgba(11, 22, 43, .5); backdrop-filter: blur(2px); }

.mm-dialog-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px 6px;
}
.mm-dialog-title { margin: 0; font-size: 17px; }
.mm-dialog-close {
    border: none; background: none; cursor: pointer;
    font-size: 22px; line-height: 1; color: var(--om-ink-3);
    padding: 2px 6px; border-radius: 6px;
}
.mm-dialog-close:hover { background: var(--om-surface-3); color: var(--om-ink); }

.mm-dialog-body { padding: 8px 18px 4px; max-height: min(64vh, 560px); overflow: auto; }
.mm-dialog-text { margin: 4px 0 10px; color: var(--om-ink-2); line-height: 1.55; }

.mm-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 18px 18px;
}

.mm-field { display: block; margin: 6px 0 12px; }
.mm-label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; color: var(--om-ink-2); }

.mm-shortcut-list {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 8px 18px;
    margin: 0;
    font-size: 14px;
}
.mm-shortcut-list dt { margin: 0; }
.mm-shortcut-list dd { margin: 0; color: var(--om-ink-2); }

kbd {
    display: inline-block;
    padding: 2px 7px;
    border: 1px solid var(--om-border-strong);
    border-bottom-width: 2px;
    border-radius: 5px;
    background: var(--om-surface-2);
    font: 500 12px/1.5 var(--font-body);
    color: var(--om-ink-2);
    white-space: nowrap;
}

/* Template / open / export pickers inside dialogs */
.mm-template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}
.mm-template-card,
.mm-open-row,
.mm-export-row {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 12px;
    border: 1.5px solid var(--om-border);
    border-radius: var(--om-radius-sm);
    background: var(--om-surface-2);
    cursor: pointer;
    text-align: left;
    font: inherit;
    color: inherit;
}
.mm-template-card.is-active,
.mm-open-row.is-active,
.mm-export-row.is-active {
    border-color: var(--om-accent);
    background: color-mix(in srgb, var(--om-accent) 8%, var(--om-surface-2));
}
.mm-template-icon { font-size: 22px; }
.mm-template-name, .mm-open-title, .mm-export-label { font-weight: 600; font-size: 14px; }
.mm-template-desc, .mm-open-meta, .mm-export-hint { font-size: 12.5px; color: var(--om-ink-3); }

.mm-open-list, .mm-export-list { display: grid; gap: 8px; }

/* ---------------------------------------------------------------- toasts */

.mm-toasts {
    position: fixed;
    left: 50%;
    bottom: 22px;
    transform: translateX(-50%);
    display: grid;
    gap: 8px;
    z-index: 9996;
    pointer-events: none;
}
.mm-toast {
    padding: 10px 16px;
    border-radius: 999px;
    background: #16223a;
    color: #fff;
    font-size: 13.5px;
    box-shadow: var(--om-shadow-lg);
    animation: mm-toast-in .18s ease-out;
}
.mm-toast.is-warn { background: #8a5a00; }
.mm-toast.is-error { background: var(--om-danger); }
.mm-toast.is-leaving { opacity: 0; transition: opacity .25s ease; }

@keyframes mm-toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------- context menu */

.mm-context-menu {
    position: fixed;
    z-index: 9997;
    min-width: 220px;
    padding: 6px;
    border: 1px solid var(--om-border);
    border-radius: 10px;
    background: var(--om-surface);
    box-shadow: var(--om-shadow-lg);
}
.mm-context-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 7px 9px;
    border: none;
    border-radius: 7px;
    background: none;
    color: var(--om-ink);
    font: 500 13.5px/1.2 var(--font-body);
    text-align: left;
    cursor: pointer;
}
.mm-context-item:hover:not(:disabled) { background: var(--om-surface-3); }
.mm-context-item:disabled { opacity: .4; cursor: not-allowed; }
.mm-context-item.is-danger { color: var(--om-danger); }
.mm-context-icon { width: 18px; text-align: center; }
.mm-context-label { flex: 1; }
.mm-context-hint { font-size: 11px; padding: 1px 5px; }
.mm-context-sep { margin: 5px 4px; border: none; border-top: 1px solid var(--om-border); }

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}