@import url("/assets/css/eduinput-brand.20260812.css");

:root {
  --platform-border: #dedbea;
  --platform-surface: #fff;
  --platform-soft: #fff4ed;
  --platform-primary: #f4722d;
  --platform-danger: #b42318;
  --platform-success: #14804a;
}

.platform-page { padding-block: 32px 72px; }
.surface-card { background: var(--platform-surface); border: 1px solid var(--platform-border); border-radius: 18px; padding: clamp(20px, 3vw, 32px); box-shadow: 0 12px 34px rgba(25, 20, 70, .06); }
.account-hero { margin-bottom: 24px; }
.account-hero h1 { margin: 6px 0; }
.account-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); gap: 24px; align-items: start; }
.stack-form { display: grid; gap: 16px; }
.stack-form label, .admin-stack-form label { display: grid; gap: 7px; }
.stack-form input, .stack-form textarea, .stack-form select { width: 100%; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.metric-list { display: grid; gap: 10px; margin: 20px 0; }
.metric-list div { display: flex; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--platform-border); padding-bottom: 9px; }
.metric-list dd { font-weight: 800; }
.status-good { color: var(--platform-success); font-weight: 800; }
.secret-code { display: block; overflow-wrap: anywhere; background: #17152a; color: #fff; border-radius: 10px; padding: 14px; margin: 14px 0; font-size: 1rem; }
.recovery-codes ul { columns: 2; list-style: none; padding: 0; }
.recovery-codes li { margin: 8px 0; }
.recovery-codes code { background: var(--platform-soft); border-radius: 8px; padding: 7px 10px; }
.form-errors, .public-flash { max-width: 1120px; margin: 18px auto; padding: 14px 18px; border-radius: 12px; background: #fff1f0; border: 1px solid #f5b7b1; color: #7a271a; }
.public-flash.success { background: #ecfdf3; border-color: #a6f4c5; color: #05603a; }
.platform-pricing .payment-proof-form { border-top: 1px solid var(--platform-border); margin-top: 18px; padding-top: 18px; }

.platform-notifications { position: relative; z-index: 30; }
.platform-notification { display: flex; align-items: center; justify-content: center; gap: 18px; background: #17152a; color: #fff; padding: 14px 5vw; box-shadow: 0 8px 30px rgba(0, 0, 0, .14); }
.platform-notification > div { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.platform-notification p { margin: 0; }
.platform-notification img { width: 58px; height: 42px; object-fit: cover; border-radius: 8px; }
.platform-notification button { appearance: none; border: 0; color: inherit; background: transparent; font-size: 26px; cursor: pointer; }
.platform-notification.is-popup { position: fixed; inset: auto 18px 18px auto; width: min(430px, calc(100vw - 36px)); border-radius: 16px; align-items: flex-start; justify-content: space-between; padding: 22px; }
.platform-notification.is-popup > div { display: grid; }
.platform-ad { display: flex; align-items: center; gap: 18px; margin-block: 18px; padding: 16px 20px; background: #fff9e8; border: 1px solid #f5d987; border-radius: 14px; }
.platform-ad img { width: 90px; height: 64px; object-fit: cover; border-radius: 10px; }
.platform-ad div { flex: 1; }
.platform-ad strong, .platform-ad p { display: block; margin: 3px 0; }
.platform-ad-adsense { display: block; min-height: 90px; background: #fafafa; border-color: #ececf2; overflow: hidden; }
.adsbygoogle { display: block; min-width: 250px; min-height: 90px; }

.brand-mark img { display: block; width: 100%; height: 100%; object-fit: contain; border-radius: inherit; }
.home-brand-logo { display: block; width: auto; height: 38px; max-width: 160px; object-fit: contain; }
.logo:has(.home-brand-logo) { display: inline-flex; align-items: center; gap: 10px; }
.admin-brand img { display: block; width: 100%; height: 100%; object-fit: contain; border-radius: 8px; }

.simulation-viewer { position: relative; }
.simulation-watermark { position: absolute; inset: 0; z-index: 3; overflow: hidden; pointer-events: none; user-select: none; }
.watermark-tiles { position: absolute; inset: -14%; display: grid; grid-template-columns: repeat(3, minmax(130px, 1fr)); place-items: center; gap: 8vh 4vw; transform: rotate(-22deg); }
.watermark-tiles span { color: #17152a; font-size: clamp(.72rem, 1.4vw, 1rem); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; }
.watermark-badge { position: absolute; right: 12px; bottom: 12px; max-width: calc(100% - 24px); padding: 6px 10px; color: #fff; background: rgba(23, 21, 42, .78); border-radius: 8px; font-size: .72rem; font-weight: 800; letter-spacing: .04em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.watermark-opacity-3 .watermark-tiles span, .watermark-opacity-4 .watermark-tiles span, .watermark-opacity-5 .watermark-tiles span, .watermark-opacity-6 .watermark-tiles span, .watermark-opacity-7 .watermark-tiles span { opacity: .05; }
.watermark-opacity-8 .watermark-tiles span, .watermark-opacity-9 .watermark-tiles span, .watermark-opacity-10 .watermark-tiles span, .watermark-opacity-11 .watermark-tiles span, .watermark-opacity-12 .watermark-tiles span { opacity: .1; }
.watermark-opacity-13 .watermark-tiles span, .watermark-opacity-14 .watermark-tiles span, .watermark-opacity-15 .watermark-tiles span, .watermark-opacity-16 .watermark-tiles span, .watermark-opacity-17 .watermark-tiles span { opacity: .15; }
.watermark-opacity-18 .watermark-tiles span, .watermark-opacity-19 .watermark-tiles span, .watermark-opacity-20 .watermark-tiles span, .watermark-opacity-21 .watermark-tiles span, .watermark-opacity-22 .watermark-tiles span { opacity: .2; }
.watermark-opacity-23 .watermark-tiles span, .watermark-opacity-24 .watermark-tiles span, .watermark-opacity-25 .watermark-tiles span, .watermark-opacity-26 .watermark-tiles span, .watermark-opacity-27 .watermark-tiles span { opacity: .25; }
.watermark-opacity-28 .watermark-tiles span, .watermark-opacity-29 .watermark-tiles span, .watermark-opacity-30 .watermark-tiles span, .watermark-opacity-31 .watermark-tiles span, .watermark-opacity-32 .watermark-tiles span { opacity: .3; }
.watermark-opacity-33 .watermark-tiles span, .watermark-opacity-34 .watermark-tiles span, .watermark-opacity-35 .watermark-tiles span, .watermark-opacity-36 .watermark-tiles span, .watermark-opacity-37 .watermark-tiles span { opacity: .35; }
.watermark-opacity-38 .watermark-tiles span, .watermark-opacity-39 .watermark-tiles span, .watermark-opacity-40 .watermark-tiles span { opacity: .4; }

.learning-tools, .simulation-notes { margin-top: 28px; }
.simulation-notes ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.learning-tools [data-quiz-output], .learning-tools [data-tutor-output] { margin-top: 18px; }
.quiz-question { border: 1px solid var(--platform-border); border-radius: 14px; padding: 16px; margin: 12px 0; }
.quiz-question legend { font-weight: 750; padding: 0 5px; }
.quiz-choice { display: block; padding: 6px 0; }
.quiz-result { padding: 12px; margin: 10px 0; border-left: 4px solid var(--platform-primary); background: var(--platform-soft); }
.tutor-answer { white-space: pre-wrap; }
.learning-quiz-setup { display: grid; grid-template-columns: minmax(110px, .7fr) minmax(130px, .9fr) minmax(160px, 1.3fr) auto; gap: 12px; align-items: end; margin-top: 18px; }
.learning-quiz-setup label { display: grid; gap: 6px; }
.learning-quiz-setup select, .learning-quiz-setup input { width: 100%; }
.learning-locked { padding: 12px 14px; background: #fff8e8; border: 1px solid #f1d48a; border-radius: 10px; }
.progress-save-status { display: block; margin-top: 6px; color: #625e73; font-size: .8rem; }
.learning-history-section { margin-top: 24px; }
.learning-history-locked { max-width: 760px; }
.learning-timeline { list-style: none; padding: 0; margin: 0; }
.learning-timeline li { display: grid; grid-template-columns: 120px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--platform-border); }
.learning-timeline time { color: #6b687e; font-size: .86rem; }
.weak-area-list { list-style: none; padding: 0; }
.weak-area-list li { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid var(--platform-border); }
.responsive-table { overflow-x: auto; }
.responsive-table table { width: 100%; border-collapse: collapse; }
.responsive-table th, .responsive-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--platform-border); white-space: nowrap; }
.global-free-notice { max-width: 900px; margin-bottom: 24px; background: #ecfdf3; border-color: #a6f4c5; }
.global-free-notice.is-expired { background: #fff8e8; border-color: #f1d48a; }
.registration-extras { border: 1px solid var(--platform-border); border-radius: 12px; padding: 12px 14px; }
.registration-extras summary { cursor: pointer; font-weight: 800; }
.registration-extras[open] summary { margin-bottom: 14px; }
.terms-check { display: flex; align-items: flex-start; gap: 9px; }
.terms-check input { width: auto; margin-top: 4px; }

.analytics-consent { position: fixed; z-index: 1000; inset: auto 16px 16px 16px; display: flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 1120px; margin-inline: auto; padding: 18px 20px; color: #fff; background: #17152a; border: 1px solid rgba(255,255,255,.2); border-radius: 16px; box-shadow: 0 18px 60px rgba(0,0,0,.28); }
.analytics-consent p { margin: 4px 0 0; color: #dfddeb; }
.analytics-consent .button-row { flex-shrink: 0; align-items: center; }
.analytics-consent a { color: #fff; }

.platform-sidebar .admin-nav-label, .admin-nav-label { display: block; padding: 16px 14px 5px; color: #9da2b3; font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.admin-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.admin-actions form, .admin-row-actions form { margin: 0; }
.admin-button.danger { background: #fff1f0; border-color: #f3a8a2; color: var(--platform-danger); }
.admin-stack-form.compact { min-width: 220px; gap: 7px; }
.admin-stack-form.compact label { gap: 3px; }
.admin-stack-form.compact input, .admin-stack-form.compact select { min-height: 34px; padding: 6px 8px; }
.ai-workbench { border-color: #b9b1ff; background: linear-gradient(145deg, #fff, #f3f0ff); }
.split-code-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.split-code-grid textarea { min-height: 380px; }
[data-code-panel][hidden] { display: none !important; }
.admin-inline-form > form { display: inline-flex; }
.recovery-codes, .security-setup { margin-bottom: 24px; }
.admin-setting-preview { display: block; width: min(220px, 100%); height: 80px; object-fit: contain; object-position: left center; margin: 8px 0; padding: 6px; background: #fff; border: 1px solid var(--platform-border); border-radius: 10px; }
.admin-setting-preview.is-icon { width: 64px; height: 64px; }

@media (max-width: 900px) {
  .account-grid, .split-code-grid { grid-template-columns: 1fr; }
  .split-code-grid textarea { min-height: 240px; }
  .platform-ad { align-items: flex-start; flex-wrap: wrap; }
  .learning-quiz-setup { grid-template-columns: 1fr 1fr; }
  .analytics-consent { align-items: flex-start; flex-direction: column; gap: 14px; }
}

@media (max-width: 620px) {
  .two-column { grid-template-columns: 1fr; }
  .recovery-codes ul { columns: 1; }
  .platform-notification.is-banner { align-items: flex-start; justify-content: space-between; }
  .platform-notification.is-banner > div { display: grid; }
  .learning-quiz-setup { grid-template-columns: 1fr; }
  .learning-timeline li { grid-template-columns: 1fr; gap: 3px; }
  .weak-area-list li { display: grid; gap: 3px; }
  .analytics-consent { inset: auto 8px 8px 8px; padding: 15px; }
  .analytics-consent .button-row { display: grid; width: 100%; }
  .analytics-consent .button { width: 100%; }
}

/* 2026-08-03: visible, accessible controls across account and platform forms. */
.surface-card h2 {
  margin: 0 0 8px;
  color: #17152a;
  font-size: clamp(1.12rem, 2vw, 1.35rem);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.25;
}

.surface-card > p:first-of-type {
  margin-top: 6px;
  color: #5f5b72;
}

.stack-form {
  margin-top: 22px;
  gap: 19px;
}

.stack-form label,
.surface-card form label,
.admin-stack-form label {
  color: #2b283d;
  font-weight: 750;
}

.stack-form label > span,
.surface-card form label > span,
.admin-stack-form label > span {
  display: block;
  margin-bottom: 7px;
  color: #373348;
  font-size: .88rem;
  font-weight: 780;
  line-height: 1.35;
}

.stack-form input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
.stack-form select,
.stack-form textarea,
.surface-card form label > input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
.surface-card form label > select,
.surface-card form label > textarea {
  appearance: none;
  display: block;
  width: 100%;
  min-height: 50px;
  border: 1.5px solid #bcb8cb;
  border-radius: 12px;
  outline: 0;
  background: #fbfbfe;
  color: #17152a;
  padding: 12px 14px;
  line-height: 1.35;
  box-shadow: inset 0 1px 2px rgba(23, 21, 42, .04), 0 1px 0 rgba(255, 255, 255, .85);
  transition: border-color .16s ease, background-color .16s ease, box-shadow .16s ease;
}

.stack-form select,
.surface-card form label > select {
  appearance: auto;
}

.stack-form textarea,
.surface-card form label > textarea {
  min-height: 132px;
  resize: vertical;
}

.stack-form input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):hover,
.stack-form select:hover,
.stack-form textarea:hover,
.surface-card form label > input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):hover,
.surface-card form label > select:hover,
.surface-card form label > textarea:hover {
  border-color: #918ba7;
  background: #fff;
}

.stack-form input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):focus,
.stack-form select:focus,
.stack-form textarea:focus,
.surface-card form label > input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):focus,
.surface-card form label > select:focus,
.surface-card form label > textarea:focus {
  border-color: var(--platform-primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(91, 75, 219, .18), inset 0 1px 2px rgba(23, 21, 42, .03);
}

.stack-form input:user-invalid,
.stack-form select:user-invalid,
.stack-form textarea:user-invalid {
  border-color: var(--platform-danger);
  box-shadow: 0 0 0 4px rgba(180, 35, 24, .11);
}

.stack-form input:disabled,
.stack-form select:disabled,
.stack-form textarea:disabled {
  cursor: not-allowed;
  border-color: #d8d5e1;
  background: #f0eff4;
  color: #777386;
}

.stack-form input::placeholder,
.stack-form textarea::placeholder {
  color: #777386;
  opacity: 1;
}

.stack-form input:-webkit-autofill,
.stack-form input:-webkit-autofill:hover,
.stack-form input:-webkit-autofill:focus {
  -webkit-text-fill-color: #17152a;
  box-shadow: 0 0 0 1000px #fff inset, 0 0 0 4px rgba(91, 75, 219, .18);
  transition: background-color 9999s ease-out;
}

.stack-form input[type="file"],
.surface-card form label > input[type="file"] {
  padding: 7px;
}

.stack-form input[type="file"]::file-selector-button,
.surface-card form label > input[type="file"]::file-selector-button {
  min-height: 34px;
  margin-right: 10px;
  border: 1px solid #cbc6df;
  border-radius: 8px;
  background: #f0edff;
  color: #4032b4;
  padding: 7px 11px;
  font-weight: 750;
  cursor: pointer;
}

.field-hint {
  display: block;
  margin: 7px 1px 0;
  color: #69657a;
  font-size: .78rem;
  font-weight: 500;
  line-height: 1.45;
}

.security-card {
  min-width: 0;
}

.security-card .button {
  margin-top: 2px;
}

.security-card .button-primary {
  min-height: 48px;
}

.security-card .status-good {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid #a6dfc2;
  border-radius: 999px;
  background: #ecfdf3;
  padding: 5px 10px;
}

.security-card .status-good::before {
  content: "✓";
}

.security-notice {
  margin-bottom: 24px;
  border-color: #c8c0ff;
  background: #f5f3ff;
  box-shadow: none;
}

.security-notice strong,
.security-notice p {
  display: block;
  margin: 0;
}

.security-notice p {
  margin-top: 4px;
  color: #4f4a68;
}

/* The generated learning mark is the default identity until an admin uploads one. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #e4e1ef;
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 4px 18px rgba(23, 21, 42, .045);
  backdrop-filter: blur(14px);
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 22px;
  width: min(calc(100% - 40px), 1200px);
  min-height: 78px;
  margin-inline: auto;
  padding: 10px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 11px;
  color: #17152a;
  text-decoration: none;
}

.brand:hover {
  color: #17152a;
  text-decoration: none;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.05;
}

.brand-copy strong {
  color: #17152a;
  font-size: 1.04rem;
  font-weight: 820;
  letter-spacing: -.025em;
  white-space: nowrap;
}

.brand-copy small {
  margin-top: 5px;
  color: #747084;
  font-size: .64rem;
  font-weight: 720;
  letter-spacing: .075em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-nav,
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
}

.site-nav {
  justify-content: flex-end;
  gap: 14px;
  min-width: 0;
}

.nav-links {
  gap: 2px;
}

.nav-actions {
  gap: 6px;
}

.site-header .nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 9px 8px;
  color: #4f4b60;
  font-size: .88rem;
  font-weight: 680;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .nav-link:hover,
.site-header .nav-link[aria-current="page"] {
  color: #4b38c7;
  text-decoration: none;
}

.site-header .nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 3px;
  left: 8px;
  height: 2px;
  border-radius: 2px;
  background: #5b4bdb;
}

.site-header .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 8px 13px;
  font-size: .86rem;
  font-weight: 760;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .button:hover {
  text-decoration: none;
}

.site-header .button-quiet {
  border-color: transparent;
  background: transparent;
  color: #3e3a4d;
}

.site-header .button-quiet:hover {
  border-color: #ded9f4;
  background: #f6f4ff;
  color: #4b38c7;
}

.site-header .button-primary {
  border-color: #5b4bdb;
  background: #5b4bdb;
  color: #fff;
  box-shadow: 0 6px 15px rgba(91, 75, 219, .2);
}

.site-header .button-primary:hover {
  border-color: #4939be;
  background: #4939be;
  color: #fff;
}

.mobile-menu-button {
  display: none;
  place-items: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border: 1px solid #d9d5e5;
  border-radius: 11px;
  background: #fff;
  color: #292638;
  cursor: pointer;
}

.menu-glyph {
  display: grid;
  gap: 4px;
  width: 20px;
}

.menu-glyph i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex-basis: 44px;
  border: 1px solid #d7d1f8;
  border-radius: 13px;
  background: linear-gradient(145deg, #fff, #eeebff);
  padding: 3px;
  box-shadow: 0 7px 18px rgba(74, 55, 196, .14);
}

.brand-mark::after {
  display: none;
}

.brand-mark img {
  object-fit: contain;
  border-radius: 8px;
}

.home-brand-logo {
  width: 44px;
  height: 44px;
  max-width: 44px;
  flex: 0 0 44px;
  object-fit: contain;
}

.admin-brand > span {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .22);
  background: #f4f1ff;
  padding: 2px;
}

.admin-brand img {
  object-fit: contain;
}

@media (max-width: 1040px) {
  .brand-copy small {
    display: none;
  }

  .site-header .header-inner {
    gap: 14px;
  }

  .site-nav {
    gap: 8px;
  }
}

@media (max-width: 860px) {
  .site-header .header-inner {
    position: relative;
    flex-wrap: wrap;
    width: min(calc(100% - 28px), 1200px);
    min-height: 70px;
  }

  .mobile-menu-button {
    display: grid;
  }

  .site-nav {
    display: none;
    order: 3;
    width: 100%;
    border-top: 1px solid #ebe8f2;
    padding: 10px 0 5px;
  }

  .site-nav.is-open {
    display: grid;
    gap: 10px;
  }

  .nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3px;
  }

  .site-header .nav-link {
    width: 100%;
    border-radius: 9px;
    padding: 10px 12px;
  }

  .site-header .nav-link:hover,
  .site-header .nav-link[aria-current="page"] {
    background: #f3f0ff;
  }

  .site-header .nav-link[aria-current="page"]::after {
    display: none;
  }

  .nav-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .site-header .nav-actions .button {
    width: 100%;
  }
}

@media (max-width: 620px) {
  .platform-page {
    padding-block: 24px 52px;
  }

  .surface-card {
    border-radius: 15px;
    padding: 20px;
  }

  .stack-form input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
  .stack-form select,
  .stack-form textarea,
  .surface-card form label > input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]),
  .surface-card form label > select,
  .surface-card form label > textarea {
    min-height: 52px;
    font-size: 16px;
  }

  .security-card .button {
    width: 100%;
  }

  .brand-copy strong {
    max-width: 175px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}