:root {
  --navy: #082a3d;
  --navy-deep: #061f31;
  --navy-soft: #0d3448;
  --teal: #55d4bd;
  --teal-dark: #237e70;
  --cyan: #4a9fb7;
  --paper: #ffffff;
  --paper-soft: #f5faf8;
  --ink: #102f39;
  --muted: #738780;
  --faint: #9aa9a4;
  --line: #dbe9e5;
  --danger: #b85f4b;
  --warning: #b47a46;
  --shadow: #00000029;
  --font-ui: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; color-scheme: light; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; font-family: var(--font-ui); color: #dcebe8; background-color: var(--navy); background-image: linear-gradient(#ffffff08 1px, transparent 1px), linear-gradient(90deg, #ffffff08 1px, transparent 1px); background-size: 74px 74px; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid #55d4bd66; outline-offset: 3px; }
[hidden] { display: none !important; }
.modal-open { overflow: hidden; }

.app-loading { display: grid; place-items: center; align-content: center; gap: 18px; min-height: 100vh; color: #a8c3c0; font-size: 12px; letter-spacing: .08em; }
.app { min-height: 100vh; }
.app-header { position: relative; z-index: 10; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 76px; padding: 0 max(5.5vw, 32px); background: #062336e8; border-bottom: 1px solid #9be0d31f; backdrop-filter: blur(12px); }
.app-brand { display: inline-flex; align-items: center; gap: 12px; width: max-content; color: #f2fbf9; font-size: 15px; font-weight: 850; line-height: 1.05; text-decoration: none; }
.app-brand > span:last-child { display: grid; }
.app-brand small { margin-top: 6px; color: #779b9b; font-size: 7px; font-weight: 700; letter-spacing: .18em; }
.brand-mark { position: relative; display: inline-block; width: 34px; height: 34px; border: 1.5px solid #55d4bd99; border-radius: 50%; }
.brand-mark::before { content: ""; position: absolute; inset: 8px; border: 2px solid transparent; border-top-color: var(--teal); border-right-color: var(--teal); border-radius: 50%; transform: rotate(35deg); }
.brand-mark > span { position: absolute; left: 7px; top: 15px; width: 5px; height: 5px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 10px var(--teal); }
.header-route-label { color: #75989a; font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 22px; }
.header-status { color: #78999a; font-size: 9px; }
.header-status i, .live-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 9px var(--teal); }
.header-link { color: var(--teal); font-size: 10px; font-weight: 750; text-decoration: none; }

.participant-view { min-height: calc(100vh - 76px); }
.profile-layout { display: grid; grid-template-columns: minmax(420px, 1fr) minmax(500px, .95fr); align-items: center; gap: clamp(60px, 9vw, 140px); max-width: 1360px; min-height: calc(100vh - 76px); margin: auto; padding: 74px 5.5vw 96px; }
.eyebrow, .card-kicker { color: var(--teal); font-size: 10px; font-weight: 850; letter-spacing: .16em; }
.profile-intro h1, .quiz-topline h1, .admin-title-row h1 { margin: 25px 0 24px; color: #fff; font-size: clamp(64px, 6.2vw, 94px); line-height: .84; letter-spacing: -.075em; }
.profile-intro h1 em, .quiz-topline h1 em, .admin-title-row h1 em { color: var(--teal); font-style: normal; }
.profile-intro > p { max-width: 570px; margin: 0; color: #9cb5b3; font-size: 14px; line-height: 2; }
.time-estimate { max-width: 570px; margin: 22px 0 0; color: #75a09d; font-size: 10px; line-height: 1.7; }
.study-specs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 35px; }
.study-specs span { padding: 12px 15px; color: #8da9a7; font-size: 9px; border: 1px solid #9be0d32b; }
.study-specs b { margin-right: 4px; color: var(--teal); }
.profile-card { position: relative; padding: clamp(30px, 4vw, 48px); color: var(--ink); background: var(--paper); box-shadow: 18px 20px var(--shadow); }
.profile-card::before { content: ""; position: absolute; top: 0; left: 0; width: 56px; height: 4px; background: var(--teal); }
.profile-card h2 { margin: 21px 0 8px; font-size: 28px; letter-spacing: -.045em; }
.profile-card > p { margin: 0 0 26px; color: #879792; font-size: 10px; line-height: 1.7; }
.form-field { display: block; margin-top: 18px; }
.form-field > span, .field-label { display: block; margin-bottom: 9px; color: #657a73; font-size: 9px; font-weight: 750; }
.name-input { width: 100%; height: 46px; padding: 0 14px; color: var(--ink); background: #f8fbfa; border: 1px solid var(--line); border-radius: 0; outline: none; transition: border-color .2s, box-shadow .2s; }
.name-input:focus { border-color: var(--teal-dark); box-shadow: 0 0 0 3px #55d4bd1f; }
.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.choice-grid button { position: relative; min-height: 79px; padding: 15px; color: #61756f; text-align: left; background: #fbfdfc; border: 1px solid var(--line); transition: .22s ease; }
.choice-grid button:hover, .choice-grid button.selected { color: var(--ink); background: #effaf7; border-color: var(--teal-dark); box-shadow: inset 0 -3px 0 var(--teal); }
.choice-icon { display: block; height: 28px; color: var(--teal-dark); font-size: 23px; font-weight: 800; }
.choice-grid i { position: absolute; top: 10px; right: 11px; color: var(--teal-dark); font-size: 13px; font-style: normal; }
.experience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.experience-grid button { min-height: 75px; padding: 11px; color: #73847f; text-align: left; background: #fbfdfc; border: 1px solid var(--line); transition: .2s ease; }
.experience-grid button.selected { color: var(--ink); background: #effaf7; border-color: var(--teal-dark); box-shadow: inset 0 -3px 0 var(--teal); }
.experience-grid b, .experience-grid span, .experience-grid small { display: block; }
.experience-grid b { color: #9aaba5; font-size: 8px; letter-spacing: .13em; }
.experience-grid span { margin-top: 9px; font-size: 11px; font-weight: 800; }
.experience-grid small { margin-top: 5px; color: #9aa8a3; font-size: 8px; }
.consent-box { margin-top: 20px; padding: 14px 15px; background: #f3f9f7; border: 1px solid #d5e7e2; }
.consent-box-head { display: flex; justify-content: space-between; gap: 12px; color: var(--teal-dark); font-size: 9px; font-weight: 800; }
.consent-box-head small { color: #96a59f; font-size: 7px; font-weight: 600; }
.consent-box p { margin: 10px 0; color: #73847f; font-size: 9px; line-height: 1.65; }
.consent-check { display: flex; align-items: center; gap: 8px; color: #536761; font-size: 9px; font-weight: 750; cursor: pointer; }
.consent-check input, .reason-option input { accent-color: var(--teal-dark); }
.start-study, .primary-button { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 51px; margin-top: 18px; padding: 0 18px; color: #083328; font-size: 11px; font-weight: 850; background: #8de0d0; border: 0; transition: background .2s, opacity .2s, transform .2s; }
.start-study:hover:not(:disabled), .primary-button:hover:not(:disabled) { background: var(--teal); transform: translateY(-1px); }
.start-study:disabled, .primary-button:disabled { cursor: not-allowed; color: #8a9a95; background: #d8e4e1; opacity: .72; }
.privacy-note, .form-status { display: block; margin-top: 10px; color: #9aa8a3; font-size: 8px; text-align: center; }
.form-status.error { color: var(--danger); }

.quiz-view { max-width: 1360px; margin: auto; padding: 68px 5.5vw 120px; }
.quiz-topline { display: flex; align-items: end; justify-content: space-between; gap: 35px; margin-bottom: 36px; }
.quiz-topline h1 { margin: 20px 0 0; font-size: clamp(54px, 5vw, 76px); }
.quiz-meta { display: flex; align-items: end; gap: 20px; }
.quiz-timer { min-width: 120px; padding: 10px 12px; color: #8eabad; background: #ffffff0b; border: 1px solid #9be0d32e; }
.quiz-timer span { display: block; color: #7f9da0; font-size: 8px; letter-spacing: .12em; }
.quiz-timer strong { display: block; margin-top: 4px; color: var(--teal); font-size: 22px; }
.quiz-counter { min-width: 150px; text-align: right; }
.quiz-counter strong { color: #fff; font-size: 40px; letter-spacing: -.06em; }
.quiz-counter > span { margin-left: 5px; color: #668c90; font-size: 10px; }
.progress-native { display: block; width: 100%; height: 4px; margin-top: 12px; appearance: none; border: 0; background: #ffffff20; }
.progress-native::-webkit-progress-bar { background: #ffffff20; }
.progress-native::-webkit-progress-value { background: var(--teal); transition: width .35s ease; }
.progress-native::-moz-progress-bar { background: var(--teal); }
.participant-quiz-card { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr); align-items: start; gap: clamp(34px, 4.5vw, 62px); padding: clamp(22px, 3vw, 38px); color: var(--ink); background: #fff; box-shadow: 18px 20px var(--shadow); }
.participant-image { min-width: 0; }
.study-scan { display: block; width: 100%; padding: 12px; background: #0a293b; border: 0; cursor: zoom-in; }
.scan-frame { position: relative; display: grid; place-items: center; min-height: min(58vw, 690px); overflow: hidden; background: #061b2a; }
.scan-frame img { display: block; width: 100%; height: 100%; max-height: 690px; object-fit: contain; filter: grayscale(1); }
.study-scan.is-loading { cursor: wait; }
.study-scan.is-loading .scan-frame img { opacity: .25; }
.study-scan.is-loading .scan-frame::after { position: absolute; width: 30px; height: 30px; content: ""; border: 3px solid #8de0d044; border-top-color: var(--teal); border-radius: 50%; animation: image-loading-spin .8s linear infinite; }
.zoom-hint { position: absolute; right: 12px; bottom: 12px; padding: 7px 9px; color: #c9e7e2; font-size: 8px; background: #061f31c9; border: 1px solid #9be0d34a; opacity: 0; transform: translateY(4px); transition: .2s ease; }
.study-scan:hover .zoom-hint, .study-scan:focus-visible .zoom-hint { opacity: 1; transform: translateY(0); }
.image-id { display: flex; justify-content: space-between; gap: 12px; margin-top: 10px; color: #91a19c; font-size: 8px; letter-spacing: .08em; }
.decision-under-image { margin-top: 18px; }
.decision-slider-card { position: relative; overflow: hidden; padding: 20px 20px 17px; background: linear-gradient(145deg, #fbfefd, #edf8f5); border: 1px solid #c9e5dd; border-radius: 18px; box-shadow: 0 12px 28px #0b4a3d10; transition: background .25s ease, border-color .25s ease, box-shadow .25s ease; }
.decision-slider-card::before { position: absolute; inset: 0 0 auto; height: 3px; content: ""; background: linear-gradient(90deg, #4799af, #b4c6be 50%, #55b991); opacity: .6; }
.decision-slider-card.is-ai { background: linear-gradient(145deg, #f4fbfd, #e7f6f8); border-color: #8dc9d5; box-shadow: 0 15px 30px #2c91a11a; }
.decision-slider-card.is-real { background: linear-gradient(145deg, #f5fcf8, #e7f8f0); border-color: #91d4bd; box-shadow: 0 15px 30px #3eaa831a; }
.decision-labels { display: grid; grid-template-columns: minmax(0, 1fr) 116px minmax(0, 1fr); align-items: center; gap: 12px; min-height: 80px; }
.decision-label { min-width: 0; min-height: 72px; padding: 11px 12px; cursor: pointer; color: #5e766f; font-family: inherit; text-align: left; background: #ffffff8c; border: 1px solid #dcebe6; border-radius: 13px; transform: translateY(0); transition: .22s ease; }
.decision-label.real { text-align: right; }
.decision-label > span { display: block; margin-bottom: 4px; font-size: 18px; line-height: 1; }
.decision-label strong { display: block; overflow: hidden; color: #4f6c65; font-size: var(--label-size, 14px); line-height: 1.15; text-overflow: ellipsis; white-space: nowrap; transition: font-size .18s, color .18s; }
.decision-label small { display: block; margin-top: 6px; color: #6f8880; font-size: 10px; }
.decision-label.active { transform: translateY(-2px); }
.decision-label.ai.active { background: #edf9fb; border-color: #a9d8e0; box-shadow: 0 6px 16px #3b9bb519; }
.decision-label.real.active { background: #eefaf5; border-color: #a8dcc8; box-shadow: 0 6px 16px #43aa8519; }
.decision-label.ai.active strong { color: #378eab; }
.decision-label.real.active strong { color: #3c9f7f; }
.decision-label.certainty-1 strong { font-size: 14px; }
.decision-label.certainty-2 strong { font-size: 16px; }
.decision-label.certainty-3 strong { font-size: 18px; }
.decision-label.certainty-4 strong { font-size: 20px; }
.decision-label.certainty-5 strong { font-size: 22px; }
.decision-center-readout { width: 116px; min-width: 0; min-height: 72px; padding: 10px 7px; color: var(--teal-dark); text-align: center; background: #fff; border: 1px solid #bedfd6; border-radius: 16px; box-shadow: 0 5px 14px #0b4a3d0a; }
.decision-center-readout strong, .decision-center-readout small { display: block; }
.decision-center-readout strong { font-size: 21px; line-height: 1; letter-spacing: -.04em; }
.decision-center-readout small { overflow: hidden; margin-top: 7px; color: #5d766e; font-size: 9px; line-height: 1.1; text-overflow: ellipsis; white-space: nowrap; }
.decision-range { width: 100%; height: 8px; margin-top: 16px; padding: 0; appearance: none; cursor: pointer; background: linear-gradient(90deg, #4c9bb0 0%, #a7b5b0 50%, #58bb94 100%); border-radius: 999px; outline: none; box-shadow: inset 0 1px 2px #0a493b2b; }
.decision-range::-webkit-slider-thumb { width: 23px; height: 23px; appearance: none; background: #fff; border: 3px solid var(--teal-dark); border-radius: 50%; box-shadow: 0 2px 8px #153f3540; }
.decision-range::-moz-range-thumb { width: 17px; height: 17px; background: #fff; border: 3px solid var(--teal-dark); border-radius: 50%; box-shadow: 0 2px 8px #153f3540; }
.decision-scale { display: flex; justify-content: space-between; margin-top: 10px; color: #647d75; font-size: 9px; }
.decision-scale span:nth-child(2) { color: #46665e; }
.decision-hint { margin: 11px 0 0; color: #668078; font-size: 10px; line-height: 1.5; text-align: center; }

.ai-reason-panel { margin-top: 15px; padding: 17px; background: #f4fbf9; border: 1px solid #b9d9d2; border-radius: 14px; box-shadow: 0 10px 24px #0b4a3d0d; animation: followup-reveal .42s cubic-bezier(.2,.75,.25,1) both; }
.ai-reason-heading strong, .ai-reason-heading small { display: block; }
.ai-reason-heading strong { font-size: 13px; }
.ai-reason-heading small { margin-top: 6px; color: #7d9089; font-size: 9px; line-height: 1.65; }
.reason-options { display: grid; gap: 9px; margin: 15px 0; }
.reason-option { display: flex; align-items: flex-start; gap: 11px; min-height: 58px; padding: 11px 12px; cursor: pointer; background: #fff; border: 1px solid #dbe9e5; animation: reason-item-reveal .36s cubic-bezier(.2,.75,.25,1) both; }
.reason-option:nth-child(2) { animation-delay: .04s; }
.reason-option:nth-child(3) { animation-delay: .08s; }
.reason-option:nth-child(4) { animation-delay: .12s; }
.reason-option:nth-child(5) { animation-delay: .16s; }
.reason-option:nth-child(6) { animation-delay: .20s; }
.reason-option:has(input:checked) { background: #e6f8f3; border-color: var(--teal-dark); box-shadow: inset 3px 0 0 var(--teal); }
.reason-option input { margin-top: 3px; }
.reason-option b, .reason-option small { display: block; }
.reason-option b { color: #45635d; font-size: 11px; line-height: 1.4; }
.reason-option small { margin-top: 4px; color: #899993; font-size: 9px; line-height: 1.5; }
.reason-note span { display: block; margin-bottom: 7px; color: #657a73; font-size: 9px; }
.reason-note textarea { width: 100%; min-height: 70px; padding: 10px; resize: vertical; color: var(--ink); background: #fff; border: 1px solid var(--line); outline: none; }
.reason-status { margin-top: 9px; color: #78918a; font-size: 9px; }

.participant-answer { position: sticky; top: max(24px, calc(50vh - 245px)); align-self: start; display: flex; flex-direction: column; justify-content: center; min-height: 490px; padding-left: clamp(26px, 3vw, 42px); border-left: 1px solid var(--line); }
.answer-instruction strong, .answer-instruction small { display: block; }
.answer-instruction strong { font-size: 18px; letter-spacing: -.025em; }
.answer-instruction small { margin-top: 8px; color: #8c9a95; font-size: 10px; line-height: 1.7; }
.answer-feedback { margin-top: 22px; padding: 16px 17px; background: #f5faf8; border-left: 3px solid var(--teal-dark); }
.answer-feedback.error { color: #774b40; background: #fff3f0; border-color: var(--danger); }
.answer-feedback > div { display: flex; justify-content: space-between; gap: 12px; }
.answer-feedback strong { font-size: 12px; }
.answer-feedback span { color: var(--teal-dark); font-size: 12px; font-weight: 850; }
.answer-feedback p { margin: 8px 0 0; color: #71817b; font-size: 10px; line-height: 1.6; }
.checkpoint-notice { margin-top: 18px; padding: 13px 14px 11px; background: #eff9f6; border: 1px solid #cce6de; border-left: 3px solid var(--teal-dark); }
.checkpoint-notice-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.checkpoint-notice-heading strong { color: var(--teal-dark); font-size: 12px; }
.checkpoint-notice-heading span { color: #78928a; font-size: 8px; white-space: nowrap; }
.checkpoint-notice-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 11px; }
.checkpoint-notice-metrics div { min-width: 0; padding-right: 7px; border-right: 1px solid #d7ebe4; }
.checkpoint-notice-metrics div:last-child { padding-right: 0; border-right: 0; }
.checkpoint-notice-metrics small, .checkpoint-notice-metrics b { display: block; }
.checkpoint-notice-metrics small { color: #78928a; font-size: 8px; }
.checkpoint-notice-metrics b { margin-top: 5px; color: var(--teal-dark); font-size: 14px; line-height: 1.15; white-space: nowrap; }
.checkpoint-notice > p { margin: 9px 0 0; color: #71817b; font-size: 9px; }
.quiz-actions { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.action-context { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 12px; color: #8b9b95; font-size: 8px; }
.prefetch-state { min-height: 15px; margin: -5px 0 12px; color: #77938b; font-size: 8px; text-align: right; }
.quiz-actions .primary-button { margin-top: 0; }
.terminate-button { display: block; margin: 12px auto 0; padding: 6px 10px; color: #8a6c64; font-family: inherit; font-size: 9px; background: transparent; border: 1px solid transparent; }
.terminate-button:hover:not(:disabled) { color: var(--danger); background: #fff4f1; border-color: #e9c9c0; }
.terminate-button:disabled { cursor: not-allowed; opacity: .55; }
.saving-state { min-height: 18px; margin-top: 9px; color: #82958e; font-size: 8px; text-align: center; }

.image-modal { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; padding: 28px; background: #061b2bea; backdrop-filter: blur(6px); }
.image-modal-dialog { position: relative; max-width: min(1040px, 94vw); max-height: 94vh; padding: 18px; background: #0b2739; border: 1px solid #9be0d355; box-shadow: 20px 24px #00000055; }
.image-modal-dialog img { display: block; width: auto; max-width: min(92vw, 980px); height: auto; max-height: 80vh; object-fit: contain; filter: grayscale(1); }
.image-modal-close { position: absolute; top: 8px; right: 8px; z-index: 2; width: 34px; height: 34px; color: #fff; font-size: 22px; background: #09283be6; border: 1px solid #9be0d355; border-radius: 50%; }
.image-modal-caption { margin-top: 10px; color: #c7e6df; font-size: 9px; letter-spacing: .1em; }
.image-modal-caption small { display: block; margin-top: 4px; color: #7da49f; font-size: 8px; letter-spacing: .03em; }

.complete-view, .error-view { display: grid; place-items: center; min-height: calc(100vh - 76px); padding: 70px 5.5vw; }
.complete-banner, .error-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 70px; width: min(100%, 1000px); padding: clamp(35px, 5vw, 70px); color: var(--ink); background: #fff; box-shadow: 18px 20px var(--shadow); }
.complete-banner h1, .error-panel h1 { margin: 16px 0; font-size: clamp(40px, 5vw, 66px); letter-spacing: -.06em; }
.complete-banner p, .error-panel p { max-width: 560px; color: #70827c; font-size: 12px; line-height: 1.8; }
.completion-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 30px 0 2px; }
.completion-metric { min-width: 0; padding: 14px 15px; background: #f4faf8; border: 1px solid #d7e9e4; }
.completion-metric span, .completion-metric strong, .completion-metric small { display: block; }
.completion-metric span { color: #78928a; font-size: 8px; letter-spacing: .08em; }
.completion-metric strong { margin-top: 10px; color: var(--teal-dark); font-size: 22px; letter-spacing: -.04em; }
.completion-metric small { margin-top: 5px; color: #8b9c96; font-size: 8px; line-height: 1.5; }
.complete-score { display: grid; place-items: center; align-content: center; width: 220px; height: 220px; color: var(--ink); border: 1px solid #addbd0; border-radius: 50%; background: #effaf7; }
.complete-score strong { color: var(--teal-dark); font-size: 64px; letter-spacing: -.08em; }
.complete-score span { color: #6f837c; font-size: 9px; }
.secondary-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 17px; padding: 13px 17px; color: var(--teal-dark); font-size: 10px; font-weight: 800; text-decoration: none; background: #eff8f5; border: 1px solid #cce4de; }
button.secondary-button { width: auto; cursor: pointer; font-family: inherit; }
button.secondary-button:disabled { cursor: wait; opacity: .65; }

.app-footer { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; min-height: 110px; padding: 25px max(5.5vw, 32px); background: #061f31; border-top: 1px solid #9be0d31c; }
.app-footer p { margin: 0; color: #6f8c8d; font-size: 9px; text-align: center; }
.app-footer > span { color: #577679; font-size: 7px; letter-spacing: .16em; }

.admin-view { max-width: 1360px; margin: auto; padding: 80px 5.5vw 120px; }
.admin-title-row { display: grid; grid-template-columns: 1fr minmax(360px, .72fr); align-items: end; gap: 70px; }
.admin-title-row h1 { margin-bottom: 0; font-size: clamp(54px, 5.5vw, 80px); }
.admin-title-copy { color: #9bb3b0; font-size: 12px; line-height: 1.9; }
.admin-auth-card { max-width: 520px; margin-top: 35px; padding: 24px; color: var(--ink); background: #fff; box-shadow: 12px 14px var(--shadow); }
.admin-auth-card h2 { margin: 0 0 7px; font-size: 21px; }
.admin-auth-card p { margin: 0 0 18px; color: #7a8c86; font-size: 10px; line-height: 1.6; }
.admin-auth-row { display: flex; gap: 8px; }
.admin-auth-row input { flex: 1; min-width: 0; padding: 11px; border: 1px solid var(--line); outline: none; }
.admin-auth-row button, .compact-button { padding: 10px 14px; color: #fff; font-size: 9px; font-weight: 800; background: var(--teal-dark); border: 0; }
.admin-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 38px; padding: 15px 17px; color: #78918a; background: #f7fbfa; border: 1px solid var(--line); }
.admin-toolbar-actions { display: flex; gap: 8px; }
.admin-toolbar .compact-button.secondary { color: var(--teal-dark); background: #e8f6f2; border: 1px solid #b9dcd3; }
.kpi-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 16px; }
.stat-card { min-height: 135px; padding: 18px; color: var(--ink); background: #fff; border: 1px solid #dce9e5; }
.stat-card.accent { background: #dff7f1; border-color: #9be0d1; }
.stat-card small, .stat-card strong, .stat-card span { display: block; }
.stat-card small { color: #8b9b95; font-size: 8px; letter-spacing: .08em; }
.stat-card strong { margin-top: 22px; color: var(--teal-dark); font-size: 34px; letter-spacing: -.05em; }
.stat-card span { margin-top: 8px; color: #7d8f89; font-size: 9px; }
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.admin-analysis { margin-top: 36px; }
.admin-analysis > .dashboard-card-head { margin-bottom: 14px; padding: 0 2px 14px; }
.analysis-kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 14px; }
.analysis-grid { margin-top: 14px; }
.analysis-table-wrap { overflow-x: auto; }
.analysis-table { width: 100%; border-collapse: collapse; font-size: 9px; }
.analysis-table th, .analysis-table td { padding: 10px 8px; color: #61766f; text-align: left; border-bottom: 1px solid #e7efed; white-space: nowrap; }
.analysis-table th { color: #90a09a; font-size: 8px; font-weight: 700; }
.analysis-chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
.analysis-chip { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; color: #5c746d; font-size: 9px; background: #f3faf7; border: 1px solid #d6e9e3; }
.analysis-chip b { color: var(--teal-dark); font-size: 18px; }
.reason-count-list { display: grid; gap: 8px; margin-top: 16px; }
.reason-count-row { display: flex; justify-content: space-between; gap: 16px; padding: 9px 10px; color: #61766f; font-size: 9px; background: #f7fbfa; border-bottom: 1px solid #e2eeea; }
.reason-count-row b { color: var(--teal-dark); }
.detail-card { margin-top: 14px; overflow: hidden; }
.details-scroll { overflow-x: auto; }
.details-table { width: 100%; min-width: 1900px; margin-top: 14px; border-collapse: collapse; font-size: 9px; }
.details-table th, .details-table td { padding: 10px 8px; color: #61766f; text-align: left; vertical-align: top; border-bottom: 1px solid #e7efed; white-space: nowrap; }
.details-table th { color: #90a09a; font-size: 8px; font-weight: 700; }
.details-table td strong { color: var(--ink); }
.details-table td small { color: #92a29c; font-size: 8px; }
.correct-tag { display: inline-block; padding: 4px 6px; font-size: 8px; font-weight: 800; }
.correct-tag.correct { color: #16745d; background: #dcf6ed; }
.correct-tag.incorrect { color: #9c5546; background: #fff0eb; }
.correct-tag.pending { color: #788d86; background: #eef3f1; }
.session-pagination { align-items: center; gap: 12px; }
.dashboard-card { min-width: 0; padding: 22px; color: var(--ink); background: #fff; border: 1px solid #dce9e5; }
.dashboard-card.full { grid-column: 1 / -1; }
.dashboard-card-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding-bottom: 14px; border-bottom: 1px solid #e4eeeb; }
.dashboard-card-head span { color: var(--teal-dark); font-size: 8px; font-weight: 850; letter-spacing: .14em; }
.dashboard-card-head h2 { margin: 6px 0 0; font-size: 18px; }
.dashboard-card-head small { color: #97a59f; font-size: 8px; }
.coverage-list { display: grid; gap: 11px; margin-top: 16px; }
.coverage-row { display: grid; grid-template-columns: minmax(140px, 1fr) minmax(100px, 1.4fr) 54px 54px; align-items: center; gap: 10px; color: #60766f; font-size: 9px; }
.coverage-row > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.coverage-native { width: 100%; height: 6px; appearance: none; border: 0; background: #edf3f1; }
.coverage-native::-webkit-progress-bar { background: #edf3f1; }
.coverage-native::-webkit-progress-value { background: var(--teal); }
.coverage-native::-moz-progress-bar { background: var(--teal); }
.coverage-row b { color: var(--teal-dark); text-align: right; }
.sessions-table { width: 100%; margin-top: 14px; border-collapse: collapse; font-size: 9px; }
.sessions-table th, .sessions-table td { padding: 11px 9px; color: #61766f; text-align: left; border-bottom: 1px solid #e7efed; }
.sessions-table th { color: #90a09a; font-size: 8px; font-weight: 700; }
.sessions-table td strong { color: var(--ink); }
.session-pagination { display: flex; justify-content: flex-end; margin-top: 14px; }
.empty-state { padding: 30px 0; color: #98a7a2; font-size: 10px; text-align: center; }

@keyframes followup-reveal { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes reason-item-reveal { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes image-loading-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (max-width: 1100px) {
  .profile-layout { grid-template-columns: .85fr 1fr; gap: 45px; }
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .analysis-kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 980px) {
  .profile-layout, .participant-quiz-card, .complete-banner, .admin-title-row, .dashboard-grid { grid-template-columns: 1fr; }
  .profile-layout { gap: 52px; padding-top: 72px; }
  .participant-answer { position: static; min-height: auto; padding: 30px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .scan-frame { min-height: min(92vw, 690px); }
  .complete-banner { gap: 25px; }
  .complete-score { margin: auto; }
  .dashboard-card.full { grid-column: auto; }
}

@media (max-width: 700px) {
  .app-header { grid-template-columns: 1fr auto; min-height: 70px; padding: 10px 18px; }
  .header-route-label, .header-status { display: none; }
  .header-actions { gap: 8px; }
  .profile-layout, .quiz-view, .admin-view { padding-right: 18px; padding-left: 18px; }
  .profile-intro h1 { font-size: 58px; }
  .profile-intro > p { font-size: 12px; }
  .quiz-topline { display: block; }
  .quiz-meta { justify-content: space-between; margin-top: 24px; }
  .participant-quiz-card { padding: 13px; box-shadow: 9px 11px var(--shadow); }
  .scan-frame { min-height: 0; aspect-ratio: 4 / 5; }
  .decision-labels { grid-template-columns: minmax(0, 1fr) 94px minmax(0, 1fr); gap: 6px; }
  .decision-label { min-height: 68px; padding: 9px 7px; }
  .decision-center-readout { width: 94px; min-height: 68px; padding: 8px 4px; }
  .decision-scale { font-size: 7px; }
  .action-context { display: grid; }
  .complete-banner, .error-panel { padding: 28px 22px; box-shadow: 9px 11px var(--shadow); }
  .completion-metrics { grid-template-columns: 1fr; }
  .complete-score { width: 180px; height: 180px; }
  .app-footer { display: block; padding: 30px 18px; }
  .app-footer p { margin: 20px 0; text-align: left; }
  .admin-auth-row, .admin-toolbar { align-items: stretch; flex-direction: column; }
  .admin-toolbar-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .analysis-kpi-grid { grid-template-columns: 1fr 1fr; }
  .coverage-row { grid-template-columns: 1fr 70px 42px 42px; gap: 6px; }
  .sessions-scroll { overflow-x: auto; }
  .sessions-table { min-width: 680px; }
}

@media (max-width: 430px) {
  .app-brand { font-size: 12px; }
  .app-brand small { font-size: 6px; }
  .brand-mark { width: 30px; height: 30px; }
  .profile-card { padding: 25px 20px; }
  .profile-intro h1 { font-size: 50px; }
  .choice-grid { grid-template-columns: 1fr; }
  .experience-grid span { font-size: 10px; }
  .quiz-topline h1 { font-size: 49px; }
  .quiz-meta { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); width: 100%; }
  .quiz-timer, .quiz-counter { min-width: 0; }
  .quiz-counter { overflow: hidden; }
  .quiz-counter strong { font-size: 34px; }
  .study-scan { padding: 7px; }
  .decision-slider-card { padding: 17px 11px 14px; border-radius: 16px; }
  .decision-labels { grid-template-columns: minmax(0, 1fr) 82px minmax(0, 1fr); gap: 5px; min-height: 64px; }
  .decision-label { min-height: 64px; padding: 8px 6px; border-radius: 10px; }
  .decision-label > span { margin-bottom: 3px; font-size: 15px; }
  .decision-label strong { font-size: 13px; line-height: 1.1; }
  .decision-label small { display: block; margin-top: 4px; font-size: 8px; }
  .decision-label.certainty-3 strong, .decision-label.certainty-4 strong, .decision-label.certainty-5 strong { font-size: 15px; }
  .decision-center-readout { width: 82px; min-height: 64px; padding: 8px 3px; border-radius: 13px; }
  .decision-center-readout strong { font-size: 18px; }
  .decision-center-readout small { margin-top: 5px; font-size: 8px; }
  .ai-reason-panel { padding: 13px; }
  .kpi-grid { grid-template-columns: 1fr; }
}