/* King's English Test – front-end styles. Colours come from CSS variables set per test. */
.ket-app {
	--ket-primary: #1a4a8a;
	--ket-accent: #059669;
	--ket-bg: #f0f4f8;
	--ket-card: #ffffff;
	--ket-text: #1a202c;
	--ket-radius: 12px;
	--ket-max-width: 760px;
	--ket-font: inherit;
	--ket-muted: color-mix(in srgb, var(--ket-text) 55%, transparent);
	--ket-border: color-mix(in srgb, var(--ket-text) 14%, transparent);
	--ket-primary-soft: color-mix(in srgb, var(--ket-primary) 10%, white);
	--ket-primary-dark: color-mix(in srgb, var(--ket-primary) 85%, black);
	--ket-danger: #dc2626;
	font-family: var(--ket-font);
	color: var(--ket-text);
	background: var(--ket-bg);
	border-radius: calc(var(--ket-radius) + 4px);
	padding: 0 0 2rem;
	line-height: 1.5;
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
}
.ket-app *, .ket-app *::before, .ket-app *::after { box-sizing: border-box; }
.ket-app h1, .ket-app h2, .ket-app h3, .ket-app p, .ket-app ul, .ket-app ol { margin: 0; padding: 0; }
.ket-app ul, .ket-app ol { list-style: none; }
.ket-app button { font: inherit; color: inherit; }
.ket-app input, .ket-app textarea, .ket-app select { font: inherit; color: var(--ket-text); }

.ket-shell { max-width: var(--ket-max-width); margin: 0 auto; padding: 0 1rem; }
.ket-loading, .ket-center { text-align: center; }
.ket-loading { padding: 3rem 1rem; color: var(--ket-muted); display: flex; gap: .6rem; align-items: center; justify-content: center; }
.ket-notice { padding: 1rem; background: #fff7ed; border: 1px solid #fed7aa; border-radius: 8px; color: #9a3412; }
.ket-error-card { color: var(--ket-danger); }

/* Header */
.ket-header { background: var(--ket-primary); color: #fff; padding: .875rem 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-radius: var(--ket-radius) var(--ket-radius) 0 0; margin: 0 -1rem 1.75rem; }
.ket-logo { height: 36px; max-width: 180px; object-fit: contain; }
.ket-logo-text { font-weight: 700; font-size: 1.05rem; }
.ket-header-right { display: flex; align-items: center; gap: .75rem; }
.ket-header-sub { font-size: .875rem; opacity: .85; }
.ket-lang-btn { background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.35); color: #fff; padding: .3rem .75rem; border-radius: 6px; cursor: pointer; font-size: .8rem; font-weight: 600; }
.ket-lang-btn:hover { background: rgba(255,255,255,.28); }
@media (max-width: 520px) { .ket-header-sub { display: none; } }

/* Steps */
.ket-steps { display: flex; justify-content: center; gap: .25rem; margin: 0 0 1.5rem; flex-wrap: wrap; }
.ket-steps li { display: flex; align-items: center; gap: .4rem; font-size: .78rem; font-weight: 600; color: var(--ket-muted); padding: .3rem .6rem; border-radius: 99px; }
.ket-steps li.current { color: var(--ket-primary); background: var(--ket-primary-soft); }
.ket-steps li.done { color: var(--ket-accent); }
.ket-step-n { width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid currentColor; display: inline-flex; align-items: center; justify-content: center; font-size: .72rem; }
.ket-steps li.current .ket-step-n { background: var(--ket-primary); color: #fff; border-color: var(--ket-primary); }
@media (max-width: 520px) { .ket-step-l { display: none; } .ket-steps li.current .ket-step-l { display: inline; } }

/* Cards */
.ket-card { background: var(--ket-card); border-radius: var(--ket-radius); box-shadow: 0 1px 3px rgba(0,0,0,.06), 0 6px 24px -12px rgba(0,0,0,.15); padding: 2rem; animation: ket-fade .35s ease; }
@keyframes ket-fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (max-width: 520px) { .ket-card { padding: 1.35rem 1.1rem; } }
.ket-title { font-size: 1.5rem; font-weight: 700; color: var(--ket-primary); margin-bottom: .75rem; line-height: 1.25; }
.ket-subtitle { font-size: 1.1rem; font-weight: 600; margin-bottom: .75rem; }
.ket-intro { color: var(--ket-muted); line-height: 1.65; margin-bottom: 1.25rem; }
.ket-welcome { background: var(--ket-primary-soft); border-left: 4px solid var(--ket-primary); border-radius: 8px; padding: 1.1rem 1.25rem; margin-bottom: 1.5rem; }
.ket-welcome .ket-title { font-size: 1.3rem; }
.ket-welcome-text p { color: color-mix(in srgb, var(--ket-text) 80%, transparent); font-size: .95rem; line-height: 1.65; margin-bottom: .6rem; }
.ket-welcome-text p:last-child { margin-bottom: 0; }
.ket-help-text { color: var(--ket-muted); font-size: .93rem; margin-bottom: 1.25rem; }
.ket-help-text p { margin-bottom: .5rem; }
.ket-divider { border: none; border-top: 1px solid var(--ket-border); margin: 1.4rem 0; }
.ket-icon { font-size: 2.75rem; margin-bottom: .75rem; }

/* Fields */
.ket-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1rem; margin-bottom: .5rem; }
.ket-field { margin-bottom: 1rem; }
.ket-fields .ket-field { margin-bottom: 0; }
.ket-field-full { grid-column: 1 / -1; }
@media (max-width: 560px) { .ket-fields { grid-template-columns: 1fr; } }
.ket-field label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: .35rem; }
.ket-sublabel { display: block; font-size: .8rem; color: var(--ket-muted); font-weight: 400; margin: -.2rem 0 .5rem; }
.ket-req { color: var(--ket-danger); margin-left: 3px; }
.ket-app input[type="text"], .ket-app input[type="email"], .ket-app input[type="tel"], .ket-app input[type="number"], .ket-app input[type="date"], .ket-app textarea, .ket-app select {
	width: 100%; border: 1.5px solid var(--ket-border); border-radius: calc(var(--ket-radius) / 2); padding: .65rem .9rem; font-size: .95rem; outline: none; background: #fff; transition: border-color .15s, box-shadow .15s; min-height: 44px;
}
.ket-app input:focus, .ket-app textarea:focus, .ket-app select:focus { border-color: var(--ket-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ket-primary) 18%, transparent); }
.ket-app textarea { resize: vertical; min-height: 96px; }
.ket-field.ket-invalid input, .ket-field.ket-invalid textarea, .ket-field.ket-invalid select { border-color: var(--ket-danger); }
.ket-radios { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
.ket-radios label { font-weight: 400; display: inline-flex; align-items: center; gap: .4rem; cursor: pointer; }
.ket-checkbox-field { margin-bottom: .7rem; }
.ket-checkbox-label { display: flex; align-items: flex-start; gap: .6rem; font-size: .875rem; font-weight: 400; cursor: pointer; }
.ket-checkbox-label input { width: 18px; height: 18px; margin-top: .15rem; flex-shrink: 0; accent-color: var(--ket-primary); cursor: pointer; }
.ket-checkbox-label a { color: var(--ket-primary); font-weight: 600; text-decoration: underline; }
.ket-hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }
.ket-field-inline { display: flex; gap: .5rem; max-width: 460px; margin: 0 auto 1rem; }
.ket-field-inline input { flex: 1; }

/* Buttons */
.ket-btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .7rem 1.5rem; border-radius: calc(var(--ket-radius) / 1.5); border: none; cursor: pointer; font-size: .95rem; font-weight: 600; transition: background .15s, transform .1s, box-shadow .15s; min-height: 44px; text-decoration: none; }
.ket-btn:active { transform: translateY(1px); }
.ket-btn:disabled { opacity: .55; cursor: not-allowed; }
.ket-btn-lg { padding: .85rem 2rem; font-size: 1rem; }
.ket-btn-primary { background: var(--ket-primary); color: #fff; }
.ket-btn-primary:hover:not(:disabled) { background: var(--ket-primary-dark); }
.ket-btn-accent { background: var(--ket-accent); color: #fff; animation: ket-pulse 1.5s ease-in-out 3; }
.ket-btn-accent:hover:not(:disabled) { filter: brightness(.92); }
.ket-btn-secondary { background: color-mix(in srgb, var(--ket-text) 8%, transparent); color: var(--ket-text); }
.ket-btn-secondary:hover:not(:disabled) { background: color-mix(in srgb, var(--ket-text) 14%, transparent); }
.ket-btn-danger { background: var(--ket-danger); color: #fff; }
.ket-btn-outline { background: transparent; border: 1.5px solid var(--ket-primary); color: var(--ket-primary); }
.ket-btn-outline:hover { background: var(--ket-primary-soft); }
.ket-btn-link { background: none; color: var(--ket-muted); text-decoration: underline; padding: .5rem; }
.ket-btn-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin-top: 1.25rem; }
.ket-btn-row.ket-center { justify-content: center; }
@keyframes ket-pulse { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--ket-accent) 45%, transparent); } 50% { box-shadow: 0 0 0 10px transparent; } }
@media (max-width: 520px) { .ket-btn-row .ket-btn { width: 100%; } }

/* Feedback */
.ket-error { color: var(--ket-danger); font-size: .875rem; margin-top: .75rem; padding: .6rem .875rem; background: #fef2f2; border: 1px solid #fecaca; border-radius: 8px; font-weight: 600; }
.ket-error[hidden] { display: none; }
.ket-spinner { width: 22px; height: 22px; border: 3px solid var(--ket-border); border-top-color: var(--ket-primary); border-radius: 50%; display: inline-block; animation: ket-spin .8s linear infinite; vertical-align: middle; }
@keyframes ket-spin { to { transform: rotate(360deg); } }
.ket-stage-finishing .ket-card p { margin-top: .75rem; color: var(--ket-muted); }

/* MC */
.ket-part-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: .75rem; flex-wrap: wrap; }
.ket-part-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ket-muted); font-weight: 700; }
.ket-timer { font-size: .85rem; font-weight: 700; color: var(--ket-text); background: color-mix(in srgb, var(--ket-text) 6%, transparent); padding: .25rem .6rem; border-radius: 6px; font-variant-numeric: tabular-nums; }
.ket-timer.urgent { color: var(--ket-danger); background: #fef2f2; }
.ket-instruction { font-size: .85rem; color: var(--ket-muted); margin-bottom: 1rem; line-height: 1.5; border-left: 3px solid var(--ket-border); padding-left: .75rem; }
.ket-progress { height: 6px; background: var(--ket-border); border-radius: 3px; margin-bottom: 1.25rem; overflow: hidden; }
.ket-progress-fill { height: 100%; background: var(--ket-primary); border-radius: 3px; transition: width .3s; }
.ket-qgrid { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: 1.25rem; }
.ket-qdot { width: 34px; height: 34px; border-radius: 7px; border: 1.5px solid var(--ket-border); background: var(--ket-card); cursor: pointer; font-size: .8rem; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; padding: 0; transition: all .12s; }
.ket-qdot.answered { background: var(--ket-primary-soft); border-color: var(--ket-primary); color: var(--ket-primary); }
.ket-qdot.cur { border-color: var(--ket-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--ket-primary) 30%, transparent); }
.ket-qcounter { font-size: .85rem; color: var(--ket-muted); margin-bottom: .5rem; }
.ket-question { font-size: 1.12rem; font-weight: 600; line-height: 1.5; padding-bottom: 1.1rem; }
.ket-options { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1.5rem; }
.ket-option { width: 100%; text-align: left; padding: .8rem 1rem; border: 1.5px solid var(--ket-border); border-radius: calc(var(--ket-radius) / 1.5); background: var(--ket-card); cursor: pointer; font-size: .97rem; display: flex; align-items: center; gap: .85rem; transition: border-color .12s, background .12s; min-height: 48px; }
.ket-option:hover { border-color: var(--ket-primary); background: var(--ket-primary-soft); }
.ket-option.selected { border-color: var(--ket-primary); background: var(--ket-primary-soft); font-weight: 600; }
.ket-option-key { width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--ket-border); display: inline-flex; align-items: center; justify-content: center; font-size: .8rem; font-weight: 700; flex-shrink: 0; }
.ket-option.selected .ket-option-key { background: var(--ket-primary); color: #fff; border-color: var(--ket-primary); }
.ket-mc-nav { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; }
.ket-mc-count { font-size: .9rem; font-weight: 700; color: var(--ket-muted); }
.ket-mc-count.all { color: var(--ket-accent); }
.ket-submit-bar { margin-top: 1.25rem; padding: 1rem 1.25rem; border-radius: calc(var(--ket-radius) / 1.5); background: color-mix(in srgb, var(--ket-text) 4%, transparent); border: 2px dashed var(--ket-border); text-align: center; transition: all .3s; }
.ket-submit-bar.ready { background: color-mix(in srgb, var(--ket-accent) 8%, white); border: 2px solid var(--ket-accent); }
.ket-submit-hint { font-size: .875rem; color: var(--ket-muted); font-weight: 500; }
@media (max-width: 520px) { .ket-mc-nav .ket-btn { flex: 1; padding-inline: .75rem; } .ket-mc-count { order: -1; width: 100%; text-align: center; } }

/* Oral */
.ket-oral-question { font-size: 1.12rem; font-weight: 600; line-height: 1.6; background: var(--ket-primary-soft); border-left: 4px solid var(--ket-primary); padding: 1rem 1.25rem; border-radius: 8px; margin-bottom: 1.25rem; }
.ket-recorder { padding: 1.25rem; border: 1.5px dashed var(--ket-border); border-radius: calc(var(--ket-radius) / 1.5); }
.ket-btn-record { width: 100%; }
.ket-rec-live { display: flex; align-items: center; gap: .6rem; color: var(--ket-danger); font-weight: 600; margin-bottom: .6rem; }
.ket-rec-time { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--ket-text); }
.ket-pulse { width: 12px; height: 12px; border-radius: 50%; background: var(--ket-danger); animation: ket-blink 1s ease-in-out infinite; }
@keyframes ket-blink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }
.ket-rec-bar { height: 8px; background: var(--ket-border); border-radius: 4px; overflow: hidden; margin-bottom: 1rem; }
.ket-rec-fill { height: 100%; background: var(--ket-danger); transition: width 1s linear; }
.ket-audio { width: 100%; margin-bottom: .75rem; }
.ket-saved { font-size: .8rem; color: var(--ket-accent); font-weight: 600; }

/* Result */
.ket-result-card { text-align: center; }
.ket-level-box { background: var(--ket-primary-soft); border-radius: var(--ket-radius); padding: 1.5rem 1.25rem; margin: 1rem 0; display: flex; flex-direction: column; align-items: center; gap: .3rem; }
.ket-level-label { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--ket-muted); font-weight: 700; }
.ket-level-value { font-size: 3.4rem; font-weight: 800; color: var(--ket-primary); line-height: 1.1; }
.ket-level-note { font-size: .85rem; color: var(--ket-muted); max-width: 440px; margin-top: .3rem; }
.ket-level-desc { color: color-mix(in srgb, var(--ket-text) 80%, transparent); max-width: 520px; margin: 0 auto 1rem; line-height: 1.6; }
.ket-score { display: flex; flex-direction: column; align-items: center; margin-bottom: 1.25rem; }
.ket-score-n { font-size: 1.9rem; font-weight: 800; color: var(--ket-text); }
.ket-score-n small { font-size: 1rem; color: var(--ket-muted); font-weight: 600; }
.ket-score-l { font-size: .85rem; color: var(--ket-muted); }
.ket-scale { margin: 1.25rem 0; }
.ket-scale-title { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ket-muted); font-weight: 700; margin-bottom: .5rem; }
.ket-scale-track { display: flex; flex-wrap: wrap; justify-content: center; gap: .3rem; }
.ket-scale-item { font-size: .75rem; font-weight: 700; padding: .3rem .5rem; border-radius: 6px; background: color-mix(in srgb, var(--ket-text) 6%, transparent); color: var(--ket-muted); min-width: 44px; }
.ket-scale-item.current { background: var(--ket-primary); color: #fff; transform: scale(1.15); box-shadow: 0 2px 8px color-mix(in srgb, var(--ket-primary) 40%, transparent); }
.ket-result-message { text-align: left; margin: 1.25rem 0; line-height: 1.65; }
.ket-result-message p { margin-bottom: .6rem; }
.ket-email-box { margin: 1.5rem 0 0; padding: 1.25rem; background: color-mix(in srgb, var(--ket-text) 4%, transparent); border-radius: calc(var(--ket-radius) / 1.5); }
.ket-email-box h3 { font-size: 1rem; margin-bottom: .75rem; }
.ket-email-box .ket-field-inline { margin-bottom: 0; }
.ket-sent { color: var(--ket-accent); font-weight: 600; margin-top: 1rem; }
.ket-contact { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--ket-border); display: flex; flex-direction: column; align-items: center; gap: .6rem; }
.ket-contact p { color: var(--ket-muted); font-size: .9rem; }
.ket-contact a { color: var(--ket-primary); font-weight: 600; }
@media (max-width: 520px) { .ket-level-value { font-size: 2.6rem; } .ket-field-inline { flex-direction: column; } }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) { .ket-app * { animation: none !important; transition: none !important; } }