/* ============================================================================
   Kick-Off Registration — base stylesheet
   Palette is driven by CSS custom properties so the admin settings page can
   override --ktuu-primary / --ktuu-accent / etc. inline at <html> level.
   ============================================================================ */

:root {
    /* Brand */
    --ktuu-primary:        #1e4d8b;
    --ktuu-primary-dark:   #16386a;
    --ktuu-accent:         #2563eb;
    --ktuu-accent-dark:    #1d4fd1;

    /* Neutrals */
    --ktuu-bg:             #f4f7fb;
    --ktuu-surface:        #ffffff;
    --ktuu-surface-alt:    #f8fafc;
    --ktuu-text:           #0f1f3a;
    --ktuu-text-muted:     #5b6b85;
    --ktuu-text-subtle:    #8a9aaf;
    --ktuu-border:         #d8e0ec;
    --ktuu-border-strong:  #b9c5d6;

    /* Scrollbar — thin, brand-tinted slate at rest, deep brand on hover */
    --ktuu-scrollbar-thumb:       #b9c5d6;
    --ktuu-scrollbar-thumb-hover: #1e4d8b;

    /* Status */
    --ktuu-success:        #10b981;
    --ktuu-success-bg:     #ecfdf5;
    --ktuu-warning:        #f59e0b;
    --ktuu-warning-bg:     #fffbeb;
    --ktuu-danger:         #ef4444;
    --ktuu-danger-bg:      #fef2f2;
    --ktuu-info:           #2563eb;
    --ktuu-info-bg:        #eff6ff;

    /* Radii / shadows */
    --ktuu-radius-sm:      6px;
    --ktuu-radius-md:      10px;
    --ktuu-radius-lg:      14px;
    --ktuu-radius-pill:    9999px;
    --ktuu-shadow-sm:      0 1px 2px rgba(15, 31, 58, 0.06);
    --ktuu-shadow-md:      0 6px 24px rgba(15, 31, 58, 0.08);
    --ktuu-shadow-lg:      0 12px 40px rgba(15, 31, 58, 0.12);

    /* Spacing scale */
    --ktuu-sp-1:           4px;
    --ktuu-sp-2:           8px;
    --ktuu-sp-3:           12px;
    --ktuu-sp-4:           16px;
    --ktuu-sp-5:           24px;
    --ktuu-sp-6:           32px;
    --ktuu-sp-7:           48px;

    /* Type */
    --ktuu-font-body:      'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --ktuu-font-heading:   'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --ktuu-fs-xs:          0.78rem;
    --ktuu-fs-sm:          0.875rem;
    --ktuu-fs-md:          1rem;
    --ktuu-fs-lg:          1.125rem;
    --ktuu-fs-xl:          1.375rem;
    --ktuu-fs-2xl:         1.75rem;
    --ktuu-fs-3xl:         2.25rem;
}

/* ----- Reset & base --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* ----- Scrollbars ----------------------------------------------------------
   One thin, rounded, brand-tinted scrollbar everywhere (page + any scrollable
   element, including modals). The 2px transparent border + padding-box clip
   makes the visible thumb ~4px while keeping an 8px grab area. Firefox uses the
   standard properties (they inherit from <html> to every descendant). */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--ktuu-scrollbar-thumb) transparent;
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--ktuu-scrollbar-thumb);
    border-radius: var(--ktuu-radius-pill);
    border: 2px solid transparent;
    background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--ktuu-scrollbar-thumb-hover);
    background-clip: padding-box;
}
::-webkit-scrollbar-corner { background: transparent; }
body {
    font-family: var(--ktuu-font-body);
    font-size: var(--ktuu-fs-md);
    line-height: 1.2;
    color: var(--ktuu-text);
    background: var(--ktuu-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5 {
    font-family: var(--ktuu-font-heading);
    color: var(--ktuu-text);
    margin: 0 0 var(--ktuu-sp-3);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.01em;
}
h1 { font-size: var(--ktuu-fs-3xl); }
h2 { font-size: var(--ktuu-fs-2xl); }
h3 { font-size: var(--ktuu-fs-xl); }
p  { margin: 0 0 var(--ktuu-sp-4); }
a {
    color: var(--ktuu-accent);
    text-decoration: none;
    transition: color 0.15s;
}
a:hover { color: var(--ktuu-accent-dark); text-decoration: underline; }

/* ----- Layout --------------------------------------------------------------- */
.ktuu-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.ktuu-container {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--ktuu-sp-5);
}
.ktuu-container-wide { max-width: 1200px; }

.ktuu-header {
    background: linear-gradient(135deg, var(--ktuu-primary) 0%, var(--ktuu-accent) 100%);
    color: #fff;
    padding: var(--ktuu-sp-5) 0;
    box-shadow: var(--ktuu-shadow-md);
}
.ktuu-header h1 {
    color: #fff;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--ktuu-sp-3);
}

/* Brand logo. The PNG ships with a solid (non-transparent) white background,
   so we round its corners everywhere it appears. The white backing keeps the
   blue mark legible on the colored header/sidebar gradients. */
.ktuu-logo {
    display: block;
    flex: none;
    width: auto;
    background: #fff;
    border-radius: 4px;
    object-fit: contain;
}
.ktuu-header .ktuu-logo { height: 104px; }
.ktuu-header .ktuu-tagline {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--ktuu-fs-sm);
    margin-top: var(--ktuu-sp-2);
}
.ktuu-main { flex: 1; padding: var(--ktuu-sp-6) 0; }
.ktuu-footer {
    border-top: 1px solid var(--ktuu-border);
    background: var(--ktuu-surface);
    color: var(--ktuu-text-muted);
    padding: var(--ktuu-sp-5) 0;
    font-size: var(--ktuu-fs-sm);
    text-align: center;
}

/* ----- Card ----------------------------------------------------------------- */
.ktuu-card {
    background: var(--ktuu-surface);
    border: 1px solid var(--ktuu-border);
    border-radius: var(--ktuu-radius-lg);
    box-shadow: var(--ktuu-shadow-sm);
    padding: var(--ktuu-sp-6);
}
.ktuu-card + .ktuu-card { margin-top: var(--ktuu-sp-5); }
.ktuu-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ktuu-sp-3);
    margin-bottom: var(--ktuu-sp-5);
    padding-bottom: var(--ktuu-sp-4);
    border-bottom: 1px solid var(--ktuu-border);
}
.ktuu-card-header h2 { margin: 0; font-size: var(--ktuu-fs-xl); }

/* ----- Form controls ------------------------------------------------------- */
.ktuu-field {
    margin-bottom: var(--ktuu-sp-5);
}
.ktuu-field label.ktuu-label {
    display: block;
    font-weight: 600;
    color: var(--ktuu-text);
    font-size: var(--ktuu-fs-sm);
    margin-bottom: var(--ktuu-sp-2);
}
.ktuu-field .ktuu-required {
    color: var(--ktuu-danger);
    margin-left: 2px;
}
.ktuu-field .ktuu-helper {
    color: var(--ktuu-text-muted);
    font-size: var(--ktuu-fs-sm);
    margin-top: var(--ktuu-sp-2);
}
.ktuu-field .ktuu-error {
    color: var(--ktuu-danger);
    font-size: var(--ktuu-fs-sm);
    margin-top: var(--ktuu-sp-2);
    display: flex;
    align-items: center;
    gap: var(--ktuu-sp-2);
}

.ktuu-input,
.ktuu-select,
.ktuu-textarea {
    width: 100%;
    padding: 11px 14px;
    font: inherit;
    color: var(--ktuu-text);
    background: var(--ktuu-surface);
    border: 1px solid var(--ktuu-border-strong);
    border-radius: var(--ktuu-radius-md);
    transition: border-color 0.15s, box-shadow 0.15s;
    appearance: none;
}
.ktuu-input:hover, .ktuu-select:hover, .ktuu-textarea:hover {
    border-color: var(--ktuu-accent);
}
.ktuu-input:focus,
.ktuu-select:focus,
.ktuu-textarea:focus {
    outline: none;
    border-color: var(--ktuu-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.ktuu-input:disabled,
.ktuu-select:disabled {
    background: var(--ktuu-surface-alt);
    color: var(--ktuu-text-subtle);
    cursor: not-allowed;
}
.ktuu-textarea { min-height: 100px; resize: vertical; }

.ktuu-select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%235b6b85' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

/* ----------------------------------------------------------------------------
   Searchable combobox (chapter picker)
   ----------------------------------------------------------------------------
   Progressive enhancement of a native <select> by assets/js/combobox.js. The
   <select> is hidden (but still submits) and replaced by a text input plus a
   filtered listbox. Built to work on every device, including iOS Safari.
   ---------------------------------------------------------------------------- */
.ktuu-combobox {
    position: relative;
}
.ktuu-combobox-input {
    /* a magnifier glyph hints that this field is searchable */
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cg fill='none' stroke='%235b6b85' stroke-width='1.6' stroke-linecap='round'%3e%3ccircle cx='9' cy='9' r='5.5'/%3e%3cpath d='M13.5 13.5L17 17'/%3e%3c/g%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}
.ktuu-combobox-list {
    list-style: none;
    margin: 4px 0 0;
    padding: 4px;
    position: absolute;
    z-index: 50;
    left: 0;
    right: 0;
    max-height: 280px;
    overflow-y: auto;
    background: var(--ktuu-surface);
    border: 1px solid var(--ktuu-border-strong);
    border-radius: var(--ktuu-radius-md);
    box-shadow: 0 8px 24px rgba(15, 31, 58, 0.12);
    -webkit-overflow-scrolling: touch;
}
.ktuu-combobox-list[hidden] { display: none; }
.ktuu-combobox-option {
    padding: 10px 12px;
    border-radius: var(--ktuu-radius-sm);
    cursor: pointer;
    color: var(--ktuu-text);
    line-height: 1.3;
}
.ktuu-combobox-option.is-active,
.ktuu-combobox-option:hover {
    background: var(--ktuu-surface-alt);
}
.ktuu-combobox-option[aria-selected="true"] {
    font-weight: 600;
}
.ktuu-combobox-empty {
    padding: 10px 12px;
    color: var(--ktuu-text-subtle);
}

/* ----------------------------------------------------------------------------
   File input
   ----------------------------------------------------------------------------
   Native <input type="file"> renders a browser-default "Choose File" button
   that ignores our design tokens. We style the field shell like a .ktuu-input
   and restyle the built-in button (::file-selector-button, with a -webkit-
   fallback) to match the system's pill buttons. No JS or extra markup needed —
   add class="ktuu-file" to the input.
   ---------------------------------------------------------------------------- */
.ktuu-file {
    width: 100%;
    font: inherit;
    color: var(--ktuu-text);
    background: var(--ktuu-surface);
    border: 1px solid var(--ktuu-border-strong);
    border-radius: var(--ktuu-radius-md);
    padding: 7px 12px 7px 7px;          /* tighter left so the button sits inset */
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.ktuu-file:hover { border-color: var(--ktuu-accent); }
.ktuu-file:focus,
.ktuu-file:focus-within {
    outline: none;
    border-color: var(--ktuu-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.ktuu-file:disabled {
    background: var(--ktuu-surface-alt);
    color: var(--ktuu-text-subtle);
    cursor: not-allowed;
    border-style: dashed;
}

/* The built-in button. Standard property first, -webkit- fallback after. */
.ktuu-file::file-selector-button,
.ktuu-file::-webkit-file-upload-button {
    font: inherit;
    font-weight: 600;
    font-size: var(--ktuu-fs-sm);
    color: #fff;
    background: var(--ktuu-accent);
    border: 0;
    border-radius: var(--ktuu-radius-pill);
    padding: 8px 18px;
    margin-right: var(--ktuu-sp-3);
    cursor: pointer;
    transition: background 0.15s, transform 0.05s;
}
.ktuu-file:hover::file-selector-button,
.ktuu-file:hover::-webkit-file-upload-button {
    background: var(--ktuu-accent-dark);
}
.ktuu-file:active::file-selector-button,
.ktuu-file:active::-webkit-file-upload-button {
    transform: translateY(1px);
}
.ktuu-file:disabled::file-selector-button,
.ktuu-file:disabled::-webkit-file-upload-button {
    background: var(--ktuu-border-strong);
    cursor: not-allowed;
}

/* ----------------------------------------------------------------------------
   Custom checkbox / radio
   ----------------------------------------------------------------------------
   Native appearance is stripped via `appearance: none` so the controls render
   identically across browsers. A 20×20 box (square for checkbox, circle for
   radio) sits where the native widget was. The :checked state fills with the
   accent color and reveals the indicator: an inline SVG checkmark (encoded
   into the `background-image`) for the checkbox, an inner white dot for the
   radio. Focus ring uses outline so it overlays cleanly on either shape.
   ---------------------------------------------------------------------------- */
.ktuu-check {
    display: flex;
    align-items: flex-start;
    gap: var(--ktuu-sp-3);
    padding: var(--ktuu-sp-3) 0;
    cursor: pointer;
}
.ktuu-check input[type="checkbox"],
.ktuu-check input[type="radio"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    margin: 1px 0 0;            /* nudge top so it aligns with the first line of text */
    flex-shrink: 0;
    cursor: pointer;
    background-color: #fff;
    background-repeat: no-repeat;
    background-position: center;
    border: 1.5px solid var(--ktuu-border-strong);
    box-shadow: 0 1px 2px rgba(15, 31, 58, 0.04);
    transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
    display: inline-block;
    vertical-align: middle;
}
.ktuu-check input[type="checkbox"] { border-radius: 5px; }
.ktuu-check input[type="radio"]    { border-radius: 50%; }

.ktuu-check input[type="checkbox"]:hover,
.ktuu-check input[type="radio"]:hover {
    border-color: var(--ktuu-accent);
}

.ktuu-check input[type="checkbox"]:checked,
.ktuu-check input[type="radio"]:checked {
    background-color: var(--ktuu-accent);
    border-color: var(--ktuu-accent);
}

/* Checkmark: white SVG, only when :checked. Inlined as a data: URI so there
   are no extra HTTP requests and the shape can't 404. */
.ktuu-check input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='%23ffffff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round' d='M3.5 8.5l3 3 6-7'/></svg>");
    background-size: 14px 14px;
}

/* Radio "dot": an inner filled circle via radial gradient — no pseudo-element
   needed (some browsers disallow ::after on form controls). */
.ktuu-check input[type="radio"]:checked {
    background-image: radial-gradient(circle, #ffffff 0 4px, transparent 5px);
}

.ktuu-check input[type="checkbox"]:focus-visible,
.ktuu-check input[type="radio"]:focus-visible {
    outline: 2px solid var(--ktuu-accent);
    outline-offset: 2px;
}

.ktuu-check input[type="checkbox"]:disabled,
.ktuu-check input[type="radio"]:disabled {
    background-color: var(--ktuu-surface-alt);
    border-color: var(--ktuu-border);
    cursor: not-allowed;
    opacity: 0.65;
    box-shadow: none;
}
.ktuu-check input[type="checkbox"]:disabled + .ktuu-check-label,
.ktuu-check input[type="radio"]:disabled + .ktuu-check-label {
    color: var(--ktuu-text-muted);
    cursor: not-allowed;
}

.ktuu-check .ktuu-check-label {
    color: var(--ktuu-text);
    font-size: var(--ktuu-fs-md);
    line-height: 1.45;
    user-select: none;
}
.ktuu-check-group {
    display: flex;
    flex-direction: column;
    gap: var(--ktuu-sp-1);
    padding: var(--ktuu-sp-2) 0;
}
.ktuu-check-group .ktuu-check {
    padding: var(--ktuu-sp-2) 0;
    border-bottom: 1px dashed var(--ktuu-border);
}
.ktuu-check-group .ktuu-check:last-child { border-bottom: none; }

/* ----- Collapsible field (ghost button → expandable section) ----------------
   Used for space-heavy fields like Leadership Role. Native <details>/<summary>,
   so it toggles with no JS. The summary is a ghost (outlined) button; opening
   reveals a bordered body. */
.ktuu-collapse {
    /* spacing comes from the wrapping .ktuu-field */
    margin: 0;
}
.ktuu-collapse-toggle {
    display: flex;
    align-items: center;
    gap: var(--ktuu-sp-2);
    cursor: pointer;
    list-style: none;
    padding: 11px 16px;
    border: 1.5px dashed var(--ktuu-border-strong);
    border-radius: var(--ktuu-radius-md);
    background: transparent;
    color: var(--ktuu-text);
    font-weight: 600;
    font-size: var(--ktuu-fs-sm);
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.ktuu-collapse-toggle::-webkit-details-marker { display: none; }   /* hide default triangle */
.ktuu-collapse-toggle:hover {
    background: var(--ktuu-surface-alt);
    border-color: var(--ktuu-accent);
    color: var(--ktuu-accent);
}
.ktuu-collapse-toggle:focus-visible {
    outline: 2px solid var(--ktuu-accent);
    outline-offset: 2px;
}
.ktuu-collapse-label { flex: 1; }
.ktuu-collapse-chevron { transition: transform .15s ease; opacity: .7; }
.ktuu-collapse[open] > .ktuu-collapse-toggle {
    border-style: solid;
    border-color: var(--ktuu-accent);
    color: var(--ktuu-accent);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.ktuu-collapse[open] > .ktuu-collapse-toggle .ktuu-collapse-chevron { transform: rotate(180deg); }
.ktuu-collapse-body {
    border: 1.5px solid var(--ktuu-accent);
    border-top: 0;
    border-radius: 0 0 var(--ktuu-radius-md) var(--ktuu-radius-md);
    padding: var(--ktuu-sp-2) var(--ktuu-sp-4) var(--ktuu-sp-4);
    background: var(--ktuu-surface);
}
.ktuu-collapse-body .ktuu-helper { margin-top: var(--ktuu-sp-2); }

.ktuu-spinner-inline {
    display: none;
    margin-left: var(--ktuu-sp-2);
    color: var(--ktuu-text-muted);
    font-size: var(--ktuu-fs-sm);
}
.ktuu-spinner-inline.is-visible { display: inline-flex; align-items: center; gap: 6px; }

/* ----- Buttons -------------------------------------------------------------- */
.ktuu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ktuu-sp-2);
    font: inherit;
    font-weight: 600;
    font-size: var(--ktuu-fs-md);
    padding: 11px 22px;
    border-radius: var(--ktuu-radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s, transform 0.05s, box-shadow 0.15s;
    line-height: 1.2;
    white-space: nowrap;
}
.ktuu-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}
.ktuu-btn:active { transform: translateY(1px); }
.ktuu-btn:disabled,
.ktuu-btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Pill variant */
.ktuu-btn-pill { border-radius: var(--ktuu-radius-pill); padding-left: 28px; padding-right: 28px; }

/* Size variants */
.ktuu-btn-sm { padding: 7px 14px; font-size: var(--ktuu-fs-sm); }
.ktuu-btn-lg { padding: 14px 28px; font-size: var(--ktuu-fs-lg); }

/* Color variants — ghost (default) */
.ktuu-btn-ghost,
.ktuu-btn { /* default is ghost */
    background: transparent;
    border-color: var(--ktuu-primary);
    color: var(--ktuu-primary);
}
.ktuu-btn-ghost:hover,
.ktuu-btn:hover {
    background: var(--ktuu-primary);
    color: #fff;
    text-decoration: none;
}

.ktuu-btn-accent.ktuu-btn-ghost,
.ktuu-btn-accent {
    border-color: var(--ktuu-accent);
    color: var(--ktuu-accent);
}
.ktuu-btn-accent.ktuu-btn-ghost:hover,
.ktuu-btn-accent:hover {
    background: var(--ktuu-accent);
    color: #fff;
}
.ktuu-btn-success {
    border-color: var(--ktuu-success);
    color: var(--ktuu-success);
}
.ktuu-btn-success:hover { background: var(--ktuu-success); color: #fff; }
.ktuu-btn-warning {
    border-color: var(--ktuu-warning);
    color: #946100;
}
.ktuu-btn-warning:hover { background: var(--ktuu-warning); color: #fff; }
.ktuu-btn-danger {
    border-color: var(--ktuu-danger);
    color: var(--ktuu-danger);
}
.ktuu-btn-danger:hover { background: var(--ktuu-danger); color: #fff; }

/* Solid variant — when you want a filled CTA (still pill-shaped if combined) */
.ktuu-btn-solid {
    background: var(--ktuu-primary);
    border-color: var(--ktuu-primary);
    color: #fff;
}
.ktuu-btn-solid:hover {
    background: var(--ktuu-primary-dark);
    border-color: var(--ktuu-primary-dark);
    color: #fff;
}
.ktuu-btn-solid.ktuu-btn-accent {
    background: var(--ktuu-accent);
    border-color: var(--ktuu-accent);
    color: #fff;
}
.ktuu-btn-solid.ktuu-btn-accent:hover { background: var(--ktuu-accent-dark); border-color: var(--ktuu-accent-dark); }
.ktuu-btn-solid.ktuu-btn-success { background: var(--ktuu-success); border-color: var(--ktuu-success); color: #fff; }
.ktuu-btn-solid.ktuu-btn-warning { background: var(--ktuu-warning); border-color: var(--ktuu-warning); color: #fff; }
.ktuu-btn-solid.ktuu-btn-warning:hover { background: #d97706; border-color: #d97706; color: #fff; }
.ktuu-btn-solid.ktuu-btn-danger  { background: var(--ktuu-danger);  border-color: var(--ktuu-danger);  color: #fff; }

/* Button row */
.ktuu-actions {
    display: flex;
    gap: var(--ktuu-sp-3);
    flex-wrap: wrap;
    margin-top: var(--ktuu-sp-5);
}
.ktuu-actions-end { justify-content: flex-end; }

/* ----- Alert banners (non-toast inline notices) ----------------------------- */
.ktuu-alert {
    border-radius: var(--ktuu-radius-md);
    padding: var(--ktuu-sp-4);
    display: flex;
    gap: var(--ktuu-sp-3);
    align-items: flex-start;
    margin-bottom: var(--ktuu-sp-5);
    font-size: var(--ktuu-fs-sm);
    border: 1px solid transparent;
}
.ktuu-alert i.fa-fw { font-size: 1.1em; margin-top: 2px; }
.ktuu-alert-success { background: var(--ktuu-success-bg); border-color: #a7f3d0; color: #065f46; }
.ktuu-alert-info    { background: var(--ktuu-info-bg);    border-color: #bfdbfe; color: #1e3a8a; }
.ktuu-alert-warning { background: var(--ktuu-warning-bg); border-color: #fcd34d; color: #92400e; }
.ktuu-alert-error   { background: var(--ktuu-danger-bg);  border-color: #fecaca; color: #991b1b; }

/* ----- Misc ----------------------------------------------------------------- */
.ktuu-muted { color: var(--ktuu-text-muted); }
.ktuu-mono  { font-family: 'JetBrains Mono', 'Courier New', monospace; font-size: 0.9em; }
.ktuu-hidden { display: none !important; }
.ktuu-spacer-lg { height: var(--ktuu-sp-6); }

/* ----- Survey field types: Yes/No + Likert (horizontal radio rows) ---------- */
.ktuu-yesno-group,
.ktuu-likert-group {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--ktuu-sp-2) var(--ktuu-sp-4);
}
.ktuu-yesno-group .ktuu-check,
.ktuu-likert-group .ktuu-check {
    border-bottom: none;
    padding: var(--ktuu-sp-2) 0;
}

/* ----- Rating (pure-CSS star control) -------------------------------------- */
.ktuu-rating {
    display: inline-flex;
    flex-direction: row-reverse;   /* DOM is max→1; reverse so it reads 1→max */
    justify-content: flex-end;
    gap: 4px;
    font-size: 1.7rem;
    line-height: 1;
}
.ktuu-rating input { position: absolute; opacity: 0; width: 0; height: 0; }
.ktuu-rating label { color: var(--ktuu-border); cursor: pointer; transition: color 0.12s ease; }
.ktuu-rating label:hover,
.ktuu-rating label:hover ~ label,
.ktuu-rating input:checked ~ label { color: #f59e0b; }
.ktuu-rating input:focus-visible + label { outline: 2px solid var(--ktuu-accent); outline-offset: 2px; border-radius: 4px; }

/* ----- Opinion scale (numbered button row) --------------------------------- */
.ktuu-scale-row { display: flex; flex-wrap: wrap; gap: 6px; }
.ktuu-scale-opt { position: relative; }
.ktuu-scale-opt input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.ktuu-scale-opt span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 8px;
    border: 1px solid var(--ktuu-border);
    border-radius: var(--ktuu-radius-md);
    background: var(--ktuu-surface);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.ktuu-scale-opt:hover span { border-color: var(--ktuu-accent); }
.ktuu-scale-opt input:checked + span { background: var(--ktuu-primary); border-color: var(--ktuu-primary); color: #fff; }
.ktuu-scale-opt input:focus-visible + span { outline: 2px solid var(--ktuu-accent); outline-offset: 2px; }
.ktuu-scale-ends {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    font-size: var(--ktuu-fs-sm);
    color: var(--ktuu-text-muted);
}

/* ----- Ranking (reorderable list) ------------------------------------------ */
.ktuu-ranking-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.ktuu-ranking-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--ktuu-border);
    border-radius: var(--ktuu-radius-md);
    background: var(--ktuu-surface);
}
.ktuu-ranking-item.is-dragging { opacity: 0.5; }
.ktuu-ranking-handle { cursor: grab; color: var(--ktuu-text-muted); }
.ktuu-ranking-handle:active { cursor: grabbing; }
.ktuu-ranking-rank {
    min-width: 1.6em; height: 1.6em;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--ktuu-primary); color: #fff;
    border-radius: 50%;
    font-size: var(--ktuu-fs-sm); font-weight: 700;
}
.ktuu-ranking-rank:empty { display: none; }
.ktuu-ranking-label { flex: 1; }
.ktuu-ranking-moves { display: inline-flex; gap: 4px; }

/* ----- Instructional text (display-only field) ----------------------------- */
.ktuu-instruction-box {
    display: flex;
    gap: var(--ktuu-sp-3);
    align-items: flex-start;
    background: var(--ktuu-info-bg);
    border: 1px solid #bfdbfe;
    border-radius: var(--ktuu-radius-md);
    padding: var(--ktuu-sp-4);
}
.ktuu-instruction-icon { color: var(--ktuu-accent); margin-top: 2px; font-size: 1.1em; }
.ktuu-instruction-title { font-weight: 600; margin-bottom: 4px; color: var(--ktuu-text); }
.ktuu-instruction-body { color: var(--ktuu-text); line-height: 1.55; }

/* ----- Responsive ----------------------------------------------------------- */
@media (max-width: 640px) {
    h1 { font-size: 1.6rem; }
    .ktuu-card { padding: var(--ktuu-sp-5); }
    .ktuu-actions { flex-direction: column; }
    .ktuu-actions .ktuu-btn { width: 100%; }
    .ktuu-scale-opt span { min-width: 36px; height: 36px; }
}
