/*
Theme Name: Лаборатория совы
Theme URI: https://example.com/
Author: Школа
Description: Тема-каталог для контрольных и домашних работ с отправкой фото заданий.
Version: 1.9.2
Text Domain: lab-07
*/

:root {
  --ink: #08131f;
  --ink-soft: #102436;
  --ink-card: #142d40;
  --line: rgba(181, 222, 229, .16);
  --text: #eef8f7;
  --muted: #99b5b9;
  --cyan: #5ee7f2;
  --amber: #ffca5c;
  --red: #ff7c72;
  --green: #83e3a4;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; color: var(--text); background: var(--ink); font-family: "Avenir Next", "Segoe UI", system-ui, sans-serif; font-size: 16px; line-height: 1.5; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .24; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 32px 32px; mask-image: linear-gradient(to bottom, #000, transparent 80%); }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }
.kr-shell { width: min(100% - 32px, 1100px); margin: 0 auto; }
.kr-site-header { padding: 28px 0 18px; border-bottom: 1px solid var(--line); }
.kr-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.kr-brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: .02em; }
.kr-brand-mark { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid rgba(94,231,242,.6); border-radius: 10px; color: var(--cyan); font-size: 12px; font-weight: 900; }
.kr-nav { display: flex; gap: 20px; color: var(--muted); font-size: .9rem; }
.kr-nav a:hover { color: var(--text); }
.kr-menu-toggle { display: none; align-items: center; gap: 8px; min-height: 42px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 11px; color: var(--text); background: rgba(20,45,64,.82); font: inherit; font-size: .88rem; font-weight: 800; cursor: pointer; }
.kr-menu-toggle:hover { color: var(--ink); background: var(--cyan); }
.kr-menu-toggle__icon { font-size: 1.1rem; line-height: 1; }
.kr-eyebrow { margin: 0 0 12px; color: var(--amber); font-size: .75rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.kr-hero { display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: end; padding: 76px 0 62px; }
.kr-hero h1, .kr-page-title { max-width: 780px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3rem, 8vw, 7rem); font-weight: 400; line-height: .92; letter-spacing: -.06em; }
.kr-hero p { max-width: 610px; margin: 22px 0 0; color: var(--muted); font-size: 1.05rem; }
.kr-hero-note { min-width: 180px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(16,36,54,.7); }
.kr-hero-note strong { display: block; color: var(--cyan); font-size: 2.2rem; line-height: 1; }
.kr-hero-note span { display: block; margin-top: 8px; color: var(--muted); font-size: .8rem; }
.kr-section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.kr-section-head h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 2.3rem; font-weight: 400; letter-spacing: -.04em; }
.kr-section-count { color: var(--muted); font-size: .85rem; }
.kr-grade-group + .kr-grade-group { padding-top: 18px; border-top: 1px solid var(--line); }
.kr-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding-bottom: 70px; }
.kr-card { display: flex; min-height: 270px; flex-direction: column; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(135deg, rgba(20,45,64,.92), rgba(16,36,54,.84)); transition: transform .2s ease, border-color .2s ease; }
.kr-card:hover { border-color: rgba(94,231,242,.5); transform: translateY(-3px); }
.kr-card__label { color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.kr-card h3 { margin: 16px 0 10px; font-size: 1.22rem; line-height: 1.25; }
.kr-card p { margin: 0; color: var(--muted); font-size: .93rem; }
.kr-card__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 22px; color: var(--muted); font-size: .8rem; }
.kr-chip { padding: 5px 9px; border: 1px solid var(--line); border-radius: 99px; }
.kr-button { display: inline-flex; align-items: center; justify-content: center; align-self: start; margin-top: 18px; padding: 11px 15px; border-radius: 11px; color: var(--ink); background: var(--cyan); font-weight: 800; transition: transform .2s ease, background .2s ease; }
.kr-button:disabled { cursor: default; opacity: .58; transform: none; }
.kr-button:hover { color: var(--ink); background: #8af1f7; transform: translateY(-1px); }
.kr-empty { grid-column: 1 / -1; padding: 42px 24px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); text-align: center; }
.kr-page-head { padding: 60px 0 32px; }
.kr-page-head p { max-width: 580px; margin: 18px 0 0; color: var(--muted); }
.kr-single-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; padding: 60px 0 30px; border-bottom: 1px solid var(--line); }
.kr-single-head h1 { max-width: 760px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.5rem, 6vw, 5.5rem); font-weight: 400; line-height: .96; letter-spacing: -.055em; }
.kr-single-head__meta { min-width: 180px; color: var(--muted); font-size: .88rem; }
.kr-single-head__meta strong { display: block; margin-bottom: 4px; color: var(--cyan); font-size: 1.1rem; }
.kr-content { max-width: 760px; margin: 28px auto 0; color: #c6d8d8; }
.kr-quiz { padding: 28px 0 70px; }
.kr-student-fields { display: grid; grid-template-columns: 1.05fr .7fr 1.45fr .9fr; gap: 12px; max-width: 1100px; margin: 0 auto 22px; padding: 20px; border: 1px solid rgba(255,202,92,.34); border-radius: var(--radius); background: rgba(255,202,92,.06); }
.kr-quiz .kr-student-fields { grid-template-columns: minmax(180px, .7fr) minmax(0, 1.8fr); }
.kr-student-fields label { display: block; margin-bottom: 7px; color: var(--amber); font-size: .82rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.kr-student-fields input, .kr-student-fields select { width: 100%; min-height: 48px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 11px; color: var(--text); background: rgba(8,19,31,.6); font: inherit; }
.kr-student-fields input::placeholder { color: #6f8d92; }
.kr-student-fields input:disabled { cursor: not-allowed; opacity: .55; }
.kr-student-fields input.is-invalid { border-color: var(--red); box-shadow: 0 0 0 2px rgba(255,124,114,.13); }
.kr-field-error { margin: 8px 0 0; color: var(--red); font-size: .82rem; }
.kr-attempt-status { margin: 8px 0 0; font-size: .84rem; }
.kr-attempt-status.is-checking { color: var(--amber); }
.kr-attempt-status.is-available, .kr-attempt-status.is-allowed { color: var(--green); }
.kr-attempt-status.is-blocked, .kr-attempt-status.is-error { color: var(--red); }
.kr-start-modal[hidden] { display: none; }
.kr-start-modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; background: rgba(8,19,31,.72); backdrop-filter: blur(4px); }
.kr-start-modal__dialog { width: min(100%, 460px); padding: 28px; border: 1px solid rgba(94,231,242,.42); border-radius: 18px; background: linear-gradient(145deg, rgba(20,45,64,.98), rgba(16,36,54,.98)); box-shadow: 0 24px 70px rgba(0,0,0,.38); text-align: center; }
.kr-start-modal__dialog h2 { margin: 0; color: var(--amber); font-family: Georgia, "Times New Roman", serif; font-size: 2.1rem; font-weight: 400; }
.kr-start-modal__dialog p { margin: 16px 0 24px; color: var(--text); font-size: 1.15rem; font-weight: 700; line-height: 1.45; }
.kr-start-modal__button { min-width: 160px; margin-top: 0; }
.kr-student-name-field { position: relative; }
.kr-student-suggestions { position: absolute; top: calc(100% - 4px); right: 0; left: 0; z-index: 5; max-height: 230px; overflow-y: auto; padding: 5px; border: 1px solid rgba(94,231,242,.45); border-radius: 10px; background: #102436; box-shadow: 0 14px 28px rgba(0,0,0,.28); }
.kr-student-suggestion { display: block; width: 100%; margin: 0; padding: 9px 10px; border: 0; border-radius: 7px; color: var(--text); background: transparent; font: inherit; text-align: left; cursor: pointer; }
.kr-student-suggestion:hover, .kr-student-suggestion:focus-visible { color: var(--ink); background: var(--cyan); outline: none; }
.kr-question { min-width: 0; width: 100%; margin: 14px 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(135deg, rgba(20,45,64,.92), rgba(16,36,54,.84)); }
.kr-question__title { width: 100%; max-width: 100%; margin: 0; padding: 0; font-size: 1.08rem; font-weight: 700; line-height: 1.35; overflow-wrap: anywhere; word-break: break-word; }
.kr-question__number { display: block; margin-bottom: 8px; color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .75rem; letter-spacing: .1em; }
.kr-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.kr-option { min-width: 0; display: flex; align-items: center; min-height: 52px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); cursor: pointer; transition: .2s ease; overflow-wrap: anywhere; word-break: break-word; }
.kr-option:hover, .kr-option:has(input:checked) { border-color: var(--cyan); color: var(--text); background: rgba(94,231,242,.1); }
.kr-option input { position: absolute; opacity: 0; pointer-events: none; }
.kr-choice { display: inline-grid; flex: 0 0 26px; width: 26px; height: 26px; margin-right: 10px; place-items: center; border: 1px solid rgba(153,181,185,.45); border-radius: 50%; font-size: .77rem; font-weight: 800; }
.kr-option:has(input:checked) .kr-choice { border-color: var(--cyan); color: var(--cyan); }
.kr-matching { display: grid; gap: 18px; margin-top: 18px; }
.kr-matching-board { display: grid; gap: 10px; }
.kr-matching-row { display: grid; grid-template-columns: 34px minmax(0, 1fr) minmax(190px, .7fr); gap: 12px; align-items: stretch; }
.kr-matching-label { display: grid; place-items: center; color: var(--cyan); font-weight: 800; }
.kr-matching-statement, .kr-matching-slot, .kr-matching-option, .kr-order-block { min-height: 52px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(8,19,31,.38); }
.kr-matching-statement { display: flex; align-items: center; overflow-wrap: anywhere; }
.kr-matching-slot { display: flex; align-items: center; color: var(--muted); border-style: dashed; font: inherit; text-align: left; cursor: pointer; }
.kr-matching-slot.is-filled { color: var(--text); border-color: var(--cyan); background: rgba(94,231,242,.1); }
.kr-matching-slot.is-over, .kr-matching-option.is-over, .kr-order-block.is-over { border-color: var(--amber); background: rgba(255,202,92,.1); }
.kr-matching-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding-top: 18px; border-top: 1px solid var(--line); }
.kr-matching-options__title, .kr-matching-help { grid-column: 1 / -1; }
.kr-matching-options__title { margin: 0; color: var(--amber); font-size: .86rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.kr-matching-option, .kr-order-block { display: flex; align-items: center; gap: 10px; width: 100%; color: var(--muted); font: inherit; text-align: left; cursor: grab; }
.kr-matching-option:hover, .kr-matching-option.is-picked, .kr-order-block:hover, .kr-order-block.is-picked { color: var(--text); border-color: var(--cyan); background: rgba(94,231,242,.1); }
.kr-matching-option:active, .kr-order-block:active { cursor: grabbing; }
.kr-matching-option__label { display: inline-grid; flex: 0 0 27px; width: 27px; height: 27px; place-items: center; border: 1px solid rgba(153,181,185,.45); border-radius: 50%; color: var(--cyan); font-size: .76rem; font-weight: 800; }
.kr-matching-help, .kr-order-help { margin: 0; color: var(--muted); font-size: .86rem; }
.kr-order-list { display: grid; gap: 10px; margin-top: 18px; }
.kr-order-block { position: relative; min-height: 58px; overflow: visible; transition: transform .18s ease, opacity .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease; }
.kr-order-block { touch-action: none; -webkit-user-select: none; user-select: none; }
.kr-order-block__position { display: grid; flex: 0 0 30px; width: 30px; height: 30px; place-items: center; border: 1px solid rgba(94,231,242,.48); border-radius: 8px; color: var(--cyan); font-size: .82rem; font-weight: 800; }
.kr-order-block__content { min-width: 0; flex: 1; overflow-wrap: anywhere; }
.kr-order-block__number { display: grid; flex: 0 0 30px; width: 30px; height: 30px; place-items: center; border-radius: 8px; color: var(--ink); background: var(--cyan); font-weight: 800; }
.kr-order-block__moves { display: flex; flex: 0 0 auto; flex-direction: column; gap: 3px; margin-left: auto; }
.kr-order-block__move { display: grid; width: 36px; height: 30px; padding: 0; place-items: center; border: 1px solid rgba(153,181,185,.45); border-radius: 8px; color: var(--muted); background: rgba(8,19,31,.42); font: inherit; font-size: 1rem; line-height: 1; cursor: pointer; }
.kr-order-block__move:hover, .kr-order-block__move:focus-visible { border-color: var(--cyan); color: var(--cyan); background: rgba(94,231,242,.1); outline: none; }
.kr-order-block__move:disabled { opacity: .3; cursor: not-allowed; }
.kr-order-block.is-picked { transform: translateX(4px); box-shadow: 0 0 0 2px rgba(94,231,242,.2), 0 10px 22px rgba(0,0,0,.16); }
.kr-order-block:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.kr-order-block.is-dragging { opacity: .42; transform: scale(.985); box-shadow: none; }
.kr-order-block.is-drop-before::before, .kr-order-block.is-drop-after::after { position: absolute; right: 14px; z-index: 1; padding: 1px 7px; border-radius: 99px; color: var(--ink); background: var(--amber); font-size: .66rem; font-weight: 800; letter-spacing: .08em; line-height: 1.4; text-transform: uppercase; pointer-events: none; }
.kr-order-block.is-drop-before::before { content: 'вставить перед'; top: -12px; }
.kr-order-block.is-drop-after::after { content: 'вставить после'; bottom: -12px; }
.kr-order-placeholder { display: block; min-height: 58px; border: 1px dashed rgba(255,202,92,.72); border-radius: 12px; background: rgba(255,202,92,.07); }
.kr-order-status { display: block; min-height: 1.25em; margin-top: 6px; color: var(--amber); }
.kr-text-answer { display: grid; gap: 14px; margin-top: 18px; color: var(--muted); font-size: .88rem; }
.kr-text-answer > label { display: grid; gap: 8px; }
.kr-text-answer input { width: 100%; min-height: 48px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--text); background: rgba(8,23,35,.78); font: inherit; }
.kr-text-answer textarea { width: 100%; min-height: 150px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--text); background: rgba(8,23,35,.78); font: inherit; line-height: 1.5; resize: vertical; }
.kr-text-answer input:focus { outline: 2px solid var(--cyan); outline-offset: 2px; border-color: var(--cyan); }
.kr-text-answer textarea:focus { outline: 2px solid var(--cyan); outline-offset: 2px; border-color: var(--cyan); }
.kr-text-answer__hint { margin: 0; color: var(--muted); font-size: .84rem; }
.kr-question.is-correct { border-color: rgba(131,227,164,.65); background: rgba(38,79,70,.65); }
.kr-question.is-wrong { border-color: rgba(255,124,114,.62); background: rgba(75,39,49,.65); }
.kr-quiz__actions { display: flex; align-items: center; gap: 16px; margin-top: 24px; }
.kr-quiz__result { display: none; margin-top: 22px; padding: 18px 20px; border: 1px solid rgba(255,202,92,.5); border-radius: 14px; background: rgba(255,202,92,.08); }
.kr-quiz__result.is-visible { display: block; }
.kr-quiz__score { color: var(--amber); font-size: 1.45rem; font-weight: 800; }
.kr-quiz__message { margin-top: 4px; color: var(--muted); }
.kr-quiz__message b { color: var(--text); }
.kr-button--muted { color: var(--muted); background: transparent; border: 1px solid var(--line); }
.kr-button--muted:hover { color: var(--text); background: rgba(255,255,255,.07); }
.kr-footer { padding: 0 0 32px; color: var(--muted); font-size: .82rem; }
@media (max-width: 780px) { .kr-hero, .kr-single-head { grid-template-columns: 1fr; flex-direction: column; align-items: start; padding-top: 48px; } .kr-grid { grid-template-columns: 1fr 1fr; } .kr-options, .kr-student-fields, .kr-quiz .kr-student-fields { grid-template-columns: 1fr; } }
@media (max-width: 780px) { .kr-matching-row { grid-template-columns: 28px 1fr; } .kr-matching-slot { grid-column: 2; } }
@media (max-width: 560px) { .kr-matching-options { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .kr-shell { width: min(100% - 22px, 1100px); } .kr-nav { gap: 12px; font-size: .8rem; } .kr-grid { grid-template-columns: 1fr; } .kr-question, .kr-card { padding: 19px; } .kr-quiz__actions { align-items: stretch; flex-direction: column; } .kr-button { width: 100%; } }
@media (max-width: 767px) { .kr-site-header { position: relative; } .kr-header-inner { position: relative; } .kr-menu-toggle { display: inline-flex; margin-left: auto; } .kr-nav { position: absolute; top: calc(100% + 10px); right: 0; z-index: 20; display: grid; min-width: 210px; gap: 0; padding: 7px; border: 1px solid var(--line); border-radius: 14px; background: rgba(20,45,64,.98); box-shadow: 0 18px 38px rgba(0,0,0,.28); opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98); transform-origin: top right; pointer-events: none; transition: opacity .18s ease, visibility .18s ease, transform .18s ease; } .kr-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); pointer-events: auto; } .kr-nav a { padding: 11px 12px; border-radius: 9px; } .kr-nav a:hover, .kr-nav a:focus-visible { color: var(--text); background: rgba(94,231,242,.1); } .kr-order-block { touch-action: auto; cursor: default; } }
@media (prefers-reduced-motion: reduce) { .kr-nav { transition: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }

/* Ограничения действуют только для посетителей без прав администратора. */
body.kr-protected,
body.kr-protected * { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
body.kr-protected input,
body.kr-protected textarea,
body.kr-protected select,
body.kr-protected [contenteditable="true"] { -webkit-user-select: text; user-select: text; }
body.kr-security-veil::after { content: "Вернитесь на страницу"; position: fixed; inset: 0; z-index: 2147483647; display: grid; place-items: center; padding: 24px; color: #eef8f7; background: #08131f; font: 700 20px/1.4 "Avenir Next", "Segoe UI", system-ui, sans-serif; text-align: center; }
@media print { body.kr-protected > * { visibility: hidden !important; } body.kr-protected::after { content: "Печать страницы отключена"; visibility: visible; position: fixed; inset: 0; display: grid; place-items: center; color: #08131f; background: #fff; font: 700 20px/1.4 sans-serif; } }

.kr-overview-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 58px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); }
.kr-overview-strip > div { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 17px 20px; background: rgba(16,36,54,.78); }
.kr-overview-strip strong { color: var(--cyan); font-size: 1.55rem; line-height: 1; }
.kr-overview-strip span { color: var(--muted); font-size: .82rem; }
.kr-discipline-grid { padding-bottom: 70px; }
.kr-discipline-card h2 { margin: 16px 0 10px; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 400; letter-spacing: -.04em; }
.kr-discipline-page { padding-bottom: 70px; }
.kr-discipline-description { margin-left: 0; }
.kr-discipline-layout { display: grid; grid-template-columns: minmax(190px, .35fr) minmax(0, 1fr); gap: 34px; padding-top: 34px; }
.kr-discipline-sidebar { align-self: start; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(16,36,54,.62); }
.kr-discipline-sidebar h2 { margin: 0 0 18px; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 400; }
.kr-discipline-sidebar ul { margin: 0; padding: 0; list-style: none; }
.kr-discipline-sidebar li { display: grid; gap: 3px; padding: 12px 0; border-top: 1px solid var(--line); }
.kr-discipline-sidebar li span { color: var(--muted); font-size: .8rem; }
.kr-discipline-content .kr-grid { padding-bottom: 0; }
@media (max-width: 780px) { .kr-overview-strip { grid-template-columns: 1fr; } .kr-discipline-layout { grid-template-columns: 1fr; } }

.kr-card--homework { background: linear-gradient(135deg, rgba(49,42,31,.92), rgba(20,45,64,.84)); }
.kr-card--homework .kr-card__label { color: var(--amber); }
.kr-button--homework { color: var(--ink); background: var(--amber); }
.kr-button--homework:hover { color: var(--ink); background: #ffda83; }
.kr-homework-catalog { margin-top: 18px; }
.kr-homework-quick { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 70px; padding: 24px; border: 1px solid rgba(255,202,92,.35); border-radius: var(--radius); background: rgba(255,202,92,.06); }
.kr-homework-quick h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 400; letter-spacing: -.04em; }
.kr-homework-quick p:not(.kr-eyebrow) { max-width: 580px; margin: 8px 0 0; color: var(--muted); }
.kr-homework-page { padding-bottom: 70px; }
.kr-webp-note { margin-top: 8px; color: var(--green); font-size: .78rem; }
.kr-upload-zone { position: relative; display: grid; min-height: 190px; place-items: center; gap: 6px; margin: 20px auto 0; padding: 28px 20px; border: 1px dashed rgba(255,202,92,.65); border-radius: var(--radius); color: var(--text); background: rgba(255,202,92,.055); text-align: center; cursor: pointer; transition: border-color .2s ease, background .2s ease, transform .2s ease; }
.kr-upload-zone.is-disabled { border-color: var(--line); color: var(--muted); background: rgba(153,181,185,.04); cursor: not-allowed; opacity: .58; }
.kr-upload-zone:hover { border-color: var(--amber); background: rgba(255,202,92,.1); transform: translateY(-1px); }
.kr-upload-zone.is-disabled:hover { border-color: var(--line); background: rgba(153,181,185,.04); transform: none; }
.kr-upload-zone:has(input:focus-visible) { outline: 3px solid var(--cyan); outline-offset: 3px; }
.kr-upload-zone input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; clip-path: inset(50%); }
.kr-upload-zone__icon { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid rgba(255,202,92,.65); border-radius: 14px; color: var(--amber); font-size: 1.5rem; line-height: 1; }
.kr-upload-zone__title { font-weight: 800; }
.kr-upload-zone__hint { color: var(--muted); font-size: .85rem; }
.kr-upload-preview { display: grid; gap: 14px; margin-top: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: rgba(16,36,54,.7); }
.kr-upload-preview[hidden], .kr-homework-result[hidden] { display: none; }
.kr-upload-preview__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 10px; }
.kr-upload-preview__item { min-width: 0; margin: 0; }
.kr-upload-preview__item img { display: block; width: 100%; aspect-ratio: 1; border-radius: 9px; object-fit: cover; background: rgba(153,181,185,.08); }
.kr-upload-preview__item figcaption { overflow: hidden; margin-top: 5px; color: var(--muted); font-size: .72rem; line-height: 1.25; text-overflow: ellipsis; white-space: nowrap; }
.kr-upload-preview__meta strong, .kr-upload-preview__meta span { display: block; }
.kr-upload-preview__meta span { margin-top: 4px; color: var(--muted); font-size: .82rem; }
.kr-homework-result { display: grid; gap: 4px; margin-top: 18px; padding: 17px 19px; border: 1px solid rgba(131,227,164,.5); border-radius: 14px; background: rgba(131,227,164,.08); }
.kr-homework-result.is-error { border-color: rgba(255,124,114,.55); background: rgba(255,124,114,.08); }
.kr-homework-result__title { color: var(--green); font-size: 1.05rem; }
.kr-homework-result.is-error .kr-homework-result__title { color: var(--red); }
.kr-homework-result__message { color: var(--muted); }
@media (max-width: 780px) { .kr-overview-strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 780px) { .kr-homework-quick { align-items: stretch; flex-direction: column; } }
@media (max-width: 560px) { .kr-overview-strip { grid-template-columns: 1fr; } .kr-upload-preview__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }