:root {
    --purple-950: #241044;
    --purple-900: #341466;
    --purple-800: #4b1ca1;
    --purple-700: #5c2bc5;
    --purple-600: #6d3bea;
    --purple-500: #8057ef;
    --purple-200: #d9cdfd;
    --purple-100: #eee9ff;
    --lilac-50: #f8f6ff;
    --navy-950: #0b1029;
    --navy-900: #111a3b;
    --navy-800: #1b2852;
    --cyan: #4de8f1;
    --pink: #ef73d9;
    --white: #ffffff;
    --ink: #182039;
    --muted: #66708a;
    --line: #e3e6f1;
    --success: #16805d;
    --success-bg: #e7f8f1;
    --danger: #b5344b;
    --danger-bg: #fff0f2;
    --warning: #9b6211;
    --warning-bg: #fff6de;
    --shadow-sm: 0 8px 24px rgba(41, 25, 83, .08);
    --shadow-md: 0 20px 50px rgba(41, 25, 83, .14);
    --radius-sm: 12px;
    --radius: 20px;
    --radius-lg: 30px;
    --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: var(--purple-700); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: var(--purple-900); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--navy-900); line-height: 1.15; letter-spacing: -.025em; }
h1 { font-size: clamp(2.35rem, 6vw, 4.8rem); }
h2 { font-size: clamp(1.65rem, 3vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { color: var(--muted); }
small { display: block; color: var(--muted); }
code { color: var(--purple-800); background: var(--purple-100); border-radius: 6px; padding: .1rem .35rem; }
.container { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.narrow { max-width: 760px; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 1000; transform: translateY(-150%); padding: .65rem 1rem; border-radius: 10px; color: var(--white); background: var(--navy-900); }
.skip-link:focus { transform: translateY(0); }
.eyebrow { display: inline-block; margin-bottom: .65rem; color: var(--purple-700); font-size: .76rem; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
.muted { color: var(--muted); }

.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--navy-900); text-decoration: none; }
.brand:hover { color: var(--navy-900); }
.brand__mark { display: grid; width: 42px; height: 42px; place-items: center; flex: 0 0 auto; color: var(--white); background: linear-gradient(145deg, var(--purple-600), var(--purple-900)); border-radius: 14px; box-shadow: 0 8px 22px rgba(109, 59, 234, .25), inset 0 0 0 1px rgba(255,255,255,.25); font-size: 1.3rem; font-weight: 800; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-size: .98rem; }
.brand__text small { margin-top: .18rem; font-size: .68rem; }

.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(227,230,241,.8); background: rgba(255,255,255,.94); backdrop-filter: blur(16px); }
.site-header__inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 1.5rem; }
.site-nav { display: flex; align-items: center; gap: 1.2rem; }
.site-nav > a:not(.button) { color: var(--ink); font-size: .9rem; font-weight: 650; text-decoration: none; }
.site-nav > a:hover { color: var(--purple-700); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); color: var(--navy-900); font-size: 1.35rem; }

.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: .45rem; padding: .68rem 1.25rem; border: 1px solid transparent; border-radius: 13px; color: var(--white); background: linear-gradient(135deg, var(--purple-600), var(--purple-800)); box-shadow: 0 9px 22px rgba(91,43,197,.2); font-weight: 750; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { color: var(--white); transform: translateY(-1px); box-shadow: 0 13px 28px rgba(91,43,197,.28); }
.button:focus-visible, .icon-button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid rgba(77,232,241,.75); outline-offset: 3px; }
.button--secondary { color: var(--purple-800); border-color: var(--purple-200); background: var(--white); box-shadow: none; }
.button--secondary:hover { color: var(--purple-900); background: var(--purple-100); box-shadow: none; }
.button--ghost { color: var(--white); border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.06); box-shadow: none; }
.button--danger { color: var(--danger); border-color: #f0bbc5; background: var(--danger-bg); box-shadow: none; }
.button--danger:hover { color: #8f1f34; background: #ffe2e7; box-shadow: none; }
.button--small { min-height: 38px; padding: .45rem .8rem; border-radius: 10px; font-size: .84rem; }
.button--full { width: 100%; }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; }
.button-row--center { justify-content: center; }
.text-link { font-weight: 700; }

.hero { position: relative; overflow: hidden; padding: 4.5rem 0 3.5rem; background: radial-gradient(circle at 15% 10%, rgba(77,232,241,.13), transparent 25%), linear-gradient(150deg, var(--lilac-50), #fff 48%, #f1edff); }
.hero::before { content: ""; position: absolute; width: 380px; height: 380px; top: -230px; left: 30%; border: 1px solid rgba(109,59,234,.12); border-radius: 50%; box-shadow: 0 0 0 60px rgba(109,59,234,.025), 0 0 0 120px rgba(109,59,234,.02); }
.hero__grid { position: relative; display: grid; grid-template-columns: .87fr 1.13fr; align-items: center; gap: 3rem; }
.hero h1 { max-width: 690px; margin-bottom: 1.25rem; }
.hero__lead { max-width: 620px; color: #515b77; font-size: clamp(1.08rem, 2vw, 1.35rem); }
.hero__copy .button-row { margin-top: 1.8rem; }
.hero__trust { display: flex; flex-wrap: wrap; gap: .6rem 1.25rem; margin: 1.8rem 0 0; padding: 0; color: var(--muted); font-size: .86rem; list-style: none; }
.hero__trust li::before { content: "✓"; margin-right: .38rem; color: var(--success); font-weight: 800; }
.hero__visual { position: relative; min-height: 450px; overflow: hidden; border: 1px solid rgba(109,59,234,.15); border-radius: 34px; background: var(--purple-100); box-shadow: var(--shadow-md); }
.hero__visual img { width: 100%; height: 100%; min-height: 450px; object-fit: cover; object-position: center; }
.placeholder-badge { position: absolute; top: 1rem; left: 1rem; z-index: 2; padding: .35rem .65rem; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; color: var(--white); background: rgba(17,26,59,.78); backdrop-filter: blur(8px); font-size: .66rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.floating-card { position: absolute; display: flex; min-width: 150px; flex-direction: column; padding: .75rem 1rem; border: 1px solid rgba(255,255,255,.6); border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-sm); backdrop-filter: blur(10px); }
.floating-card strong { color: var(--navy-900); }
.floating-card span { color: var(--muted); font-size: .75rem; }
.floating-card--top { top: 17%; right: 3%; }
.floating-card--bottom { bottom: 7%; left: 3%; }

.section { padding: 5rem 0; }
.section--compact { padding: 1.4rem 0; }
.section--tinted { background: var(--lilac-50); }
.section--navy { color: var(--white); background: radial-gradient(circle at 90% 10%, rgba(77,232,241,.13), transparent 30%), var(--navy-950); }
.section-heading { max-width: 700px; margin-bottom: 2.2rem; }
.section-heading p { font-size: 1.04rem; }
.section-heading--row { display: flex; max-width: none; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.section-heading--light h2, .section-heading--light p { color: var(--white); }
.section-heading--light .eyebrow { color: var(--cyan); }
.intro-strip { display: flex; align-items: center; justify-content: center; gap: 1rem; padding: 1.25rem 1.5rem; border: 1px solid var(--purple-200); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.intro-strip p { margin: .2rem 0 0; }
.mini-avatar { display: grid; width: 54px; height: 54px; place-items: center; flex: 0 0 auto; border-radius: 18px; color: var(--white); background: linear-gradient(145deg, var(--purple-600), var(--navy-900)); font-size: 1.4rem; font-weight: 850; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.feature-card { padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); transition: transform .18s ease, border-color .18s ease; }
.feature-card:hover { transform: translateY(-4px); border-color: var(--purple-200); }
.feature-card__icon, .material-icon { display: grid; width: 44px; height: 44px; place-items: center; margin-bottom: 1rem; border-radius: 14px; color: var(--purple-800); background: var(--purple-100); font-weight: 850; }
.feature-card h3 { margin-bottom: .5rem; }
.feature-card p { margin-bottom: 0; font-size: .9rem; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(2rem, 6vw, 5rem); }
.steps { display: grid; gap: 1rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.steps li { display: flex; gap: 1rem; }
.steps li > span { display: grid; width: 38px; height: 38px; place-items: center; flex: 0 0 auto; border-radius: 12px; color: var(--white); background: var(--purple-600); font-weight: 800; }
.steps p { margin: .15rem 0 0; }
.progress-preview { position: relative; padding: 2rem; overflow: hidden; border-radius: var(--radius-lg); color: var(--white); background: linear-gradient(145deg, var(--navy-900), var(--purple-950)); box-shadow: var(--shadow-md); }
.progress-preview::after { content: ""; position: absolute; width: 170px; height: 170px; right: -70px; bottom: -80px; border-radius: 50%; border: 25px solid rgba(77,232,241,.1); }
.progress-preview h3 { color: var(--white); font-size: 1.6rem; }
.progress { height: 9px; overflow: hidden; border-radius: 999px; background: #e7e5f0; }
.progress__fill { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--purple-500), var(--cyan)); transition: width .6s ease; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-top: 1.5rem; }
.metric-row span { display: flex; flex-direction: column; }
.metric-row strong { color: inherit; font-size: 1.6rem; }
.metric-row small { color: inherit; opacity: .7; }
.metric-row--vertical { margin-bottom: 1.25rem; color: var(--ink); }
.demo-note { margin: 1.3rem 0 0; color: rgba(255,255,255,.62); font-size: .75rem; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.testimonial-card { margin: 0; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.testimonial-card blockquote { margin: 0 0 1rem; color: var(--ink); font-size: 1.02rem; }
.testimonial-card figcaption { display: flex; flex-direction: column; }
.testimonial-card figcaption span { color: var(--muted); font-size: .84rem; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; padding: 1.65rem; border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius); color: var(--ink); background: var(--white); box-shadow: var(--shadow-md); }
.price-card--featured { border-color: var(--cyan); transform: translateY(-8px); }
.price-card__badge { align-self: flex-start; margin: -2.45rem 0 1rem; padding: .35rem .75rem; border-radius: 999px; color: var(--navy-950); background: var(--cyan); font-size: .72rem; font-weight: 850; }
.price { margin: .8rem 0; color: var(--purple-800); font-size: 1.9rem; font-weight: 900; }
.price-card ul { flex: 1; padding-left: 1.2rem; color: var(--muted); }
.price-card li { margin-bottom: .45rem; }
.pricing-grid--light .price-card { border-color: var(--line); box-shadow: var(--shadow-sm); }
.pricing-grid--app { margin-bottom: 1.5rem; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--purple-200); border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--lilac-50), #edfafe); }
.cta-panel h2 { max-width: 650px; margin-bottom: 0; }
.empty-state { padding: 2.4rem; border: 1px dashed var(--purple-200); border-radius: var(--radius); text-align: center; background: var(--lilac-50); }
.empty-state > span { display: block; color: var(--purple-500); font-size: 2rem; }
.empty-state h2, .empty-state h3 { margin: .4rem 0; }
.empty-state p { max-width: 600px; margin-inline: auto; }
.empty-state--compact { padding: 1.35rem; }
.empty-state--dark { color: var(--white); background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.18); }
.empty-state--dark h3, .empty-state--dark p { color: var(--white); }

.page-hero { padding: 4.2rem 0 3.2rem; text-align: center; background: linear-gradient(155deg, var(--lilac-50), #f4fbff); }
.page-hero h1 { margin-bottom: .8rem; font-size: clamp(2.3rem, 5vw, 4rem); }
.page-hero p { font-size: 1.1rem; }
.material-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.material-card { display: flex; min-width: 0; flex-direction: column; padding: 1.35rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.material-card h2 { margin: .8rem 0 .5rem; font-size: 1.25rem; }
.material-card p { flex: 1; }
.material-card__image { width: calc(100% + 2.7rem); height: 160px; margin: -1.35rem -1.35rem 1rem; border-radius: var(--radius) var(--radius) 0 0; object-fit: cover; }
.card-meta, .card-topline { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; color: var(--muted); font-size: .78rem; }
.card-actions { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-top: 1rem; }
.tag, .level, .status, .priority { display: inline-flex; align-items: center; padding: .28rem .6rem; border-radius: 999px; font-size: .69rem; font-weight: 820; line-height: 1.2; text-transform: uppercase; letter-spacing: .04em; }
.tag { color: var(--purple-800); background: var(--purple-100); }
.level { color: #235e68; background: #e5f9fb; }
.level--advanced { color: #8b335c; background: #ffedf6; }
.level--intermediate { color: #8a6318; background: #fff5d8; }
.material-type { margin-top: 1rem; color: var(--purple-700); font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.icon-button { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid var(--purple-200); border-radius: 11px; color: var(--purple-700); background: var(--white); font-size: 1.2rem; }
.info-callout, .warning-callout { margin: 1.5rem 0; padding: 1rem 1.2rem; border-left: 4px solid var(--purple-600); border-radius: var(--radius-sm); background: var(--purple-100); }
.info-callout p, .warning-callout p { margin: .25rem 0 0; }
.warning-callout { border-color: var(--warning); background: var(--warning-bg); }
.faq-list { display: grid; gap: .75rem; }
.faq-list details, .editor-panel { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); box-shadow: var(--shadow-sm); }
.faq-list summary, .editor-panel > summary { padding: 1rem 1.15rem; color: var(--navy-900); font-weight: 800; cursor: pointer; }
.faq-list details p { padding: 0 1.15rem 1rem; margin: 0; }
.about-visual { position: relative; overflow: hidden; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.about-visual img { width: 100%; min-height: 360px; object-fit: cover; }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.principles-grid article { padding: 1.5rem; border-radius: var(--radius); background: var(--white); }
.form-page-grid { display: grid; grid-template-columns: .75fr 1.25fr; align-items: start; gap: 2rem; }
.form-card, .panel { padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.form-field { display: flex; min-width: 0; flex-direction: column; gap: .35rem; margin-bottom: 1rem; }
.form-field label, fieldset legend, .rating-form > label { color: var(--navy-900); font-size: .84rem; font-weight: 750; }
.form-field small { font-size: .72rem; }
.form-field input, .form-field select, .form-field textarea, .rating-form input, .rating-form select, .review-form textarea, .table-form select { width: 100%; min-height: 44px; padding: .65rem .75rem; border: 1px solid #cfd4e2; border-radius: 10px; color: var(--ink); background: var(--white); }
.form-field textarea, .review-form textarea { resize: vertical; }
.form-field input:disabled { color: var(--muted); background: #f2f3f7; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.form-grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-field--inline { min-width: 180px; margin: 0; }
.check-field { display: flex; align-items: flex-start; gap: .55rem; margin: .7rem 0 1rem; color: var(--muted); font-size: .85rem; }
.check-field input { width: 18px; height: 18px; flex: 0 0 auto; accent-color: var(--purple-600); }
.check-row { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.honeypot { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.legal-document { padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.legal-document h2 { margin-top: 2rem; font-size: 1.35rem; }
.error-page { display: grid; min-height: 65vh; place-items: center; padding: 4rem 0; text-align: center; background: var(--lilac-50); }
.error-code { display: block; color: var(--purple-200); font-size: clamp(5rem, 17vw, 11rem); font-weight: 950; line-height: .9; }
.auth-page { display: grid; min-height: 100vh; place-items: center; padding: 2rem 1rem; background: radial-gradient(circle at 15% 10%, rgba(77,232,241,.14), transparent 27%), linear-gradient(145deg, var(--navy-950), var(--purple-950)); }
.auth-card { width: min(100%, 510px); padding: clamp(1.5rem, 5vw, 2.5rem); border: 1px solid rgba(255,255,255,.22); border-radius: var(--radius-lg); background: var(--white); box-shadow: 0 30px 80px rgba(5,7,25,.35); }
.auth-card--wide { width: min(100%, 760px); }
.auth-card h1 { margin: .25rem 0 .6rem; font-size: clamp(2rem, 5vw, 3rem); }
.auth-card__back { display: inline-block; margin-bottom: 1.4rem; font-size: .85rem; font-weight: 750; text-decoration: none; }
.auth-links { display: grid; gap: .45rem; margin-top: 1rem; text-align: center; font-size: .85rem; }
.password-field { display: flex; }
.password-field input { border-radius: 10px 0 0 10px; }
.password-field button { min-width: 56px; border: 1px solid #cfd4e2; border-left: 0; border-radius: 0 10px 10px 0; color: var(--purple-700); background: var(--lilac-50); font-weight: 750; }

.site-footer { padding: 3rem 0 1.5rem; color: rgba(255,255,255,.75); background: var(--navy-950); }
.site-footer .brand { color: var(--white); }
.site-footer p { color: rgba(255,255,255,.65); }
.footer-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 2rem; }
.footer-grid nav { display: grid; align-content: start; gap: .55rem; }
.footer-grid nav a { color: rgba(255,255,255,.78); }
.disclaimer { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .78rem; }

.alerts-wrap { position: relative; z-index: 20; }
.platform-notice { padding: .65rem 0; color: #553809; background: var(--warning-bg); border-bottom: 1px solid #ecd184; font-size: .84rem; font-weight: 700; text-align: center; }
.platform-notice--app { margin-bottom: 1rem; padding: .7rem 1rem; border: 1px solid #ecd184; border-radius: var(--radius-sm); }
.alert { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin: 1rem 0; padding: .9rem 1rem; border: 1px solid; border-radius: var(--radius-sm); }
.alert--success { color: var(--success); border-color: #a8dfcd; background: var(--success-bg); }
.alert--error { color: var(--danger); border-color: #efb8c2; background: var(--danger-bg); }
.alert ul { margin: .35rem 0 0; padding-left: 1.2rem; }
.alert__close { border: 0; color: inherit; background: transparent; font-size: 1.2rem; }

.app-body { background: #f5f6fb; }
.app-shell { display: grid; min-height: 100vh; grid-template-columns: 265px minmax(0, 1fr); }
.app-sidebar { position: sticky; top: 0; display: flex; height: 100vh; flex-direction: column; overflow-y: auto; padding: 1.25rem; color: var(--white); background: radial-gradient(circle at 10% 0, rgba(128,87,239,.28), transparent 30%), var(--navy-950); }
.app-sidebar .brand { color: var(--white); }
.profile-chip { display: flex; align-items: center; gap: .75rem; margin: 1.5rem 0; padding: .8rem; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-sm); background: rgba(255,255,255,.05); }
.profile-chip > span:last-child { display: flex; min-width: 0; flex-direction: column; }
.profile-chip small { color: rgba(255,255,255,.55); }
.avatar { display: grid; width: 42px; height: 42px; place-items: center; flex: 0 0 auto; border-radius: 14px; color: var(--navy-950); background: linear-gradient(145deg, var(--cyan), #bffbff); font-weight: 900; }
.avatar--admin { color: var(--white); background: linear-gradient(145deg, var(--pink), var(--purple-600)); }
.avatar--large { width: 82px; height: 82px; margin-inline: auto; border-radius: 26px; font-size: 2rem; }
.side-nav { display: grid; gap: .2rem; }
.side-nav a { display: flex; align-items: center; gap: .7rem; padding: .6rem .7rem; border-radius: 10px; color: rgba(255,255,255,.72); font-size: .84rem; font-weight: 650; text-decoration: none; }
.side-nav a:hover { color: var(--white); background: rgba(255,255,255,.08); }
.side-nav a span { width: 20px; text-align: center; color: var(--cyan); }
.sidebar-logout { margin-top: auto; padding-top: 1rem; }
.app-main { min-width: 0; }
.app-topbar { display: flex; min-height: 68px; align-items: center; justify-content: flex-end; padding: .75rem clamp(1rem, 3vw, 2rem); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.9); backdrop-filter: blur(12px); }
.app-topbar .menu-toggle { margin-right: auto; }
.plan-pill { padding: .45rem .8rem; border-radius: 999px; color: var(--purple-800); background: var(--purple-100); font-size: .8rem; font-weight: 800; text-decoration: none; }
.app-content { width: min(100%, 1400px); margin-inline: auto; padding: clamp(1rem, 3vw, 2rem); }
.app-footer { padding: 1rem 2rem 2rem; color: var(--muted); font-size: .72rem; text-align: center; }
.dashboard-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: 1.5rem; }
.dashboard-heading h1 { margin: 0 0 .35rem; font-size: clamp(2rem, 4vw, 3rem); }
.dashboard-heading p { margin-bottom: 0; }
.dashboard-grid, .admin-stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.admin-stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.admin-stat-grid--compact .stat-card { min-height: 105px; }
.stat-card { display: flex; min-height: 145px; flex-direction: column; justify-content: space-between; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.stat-card > span { color: var(--muted); font-size: .8rem; font-weight: 700; }
.stat-card > strong { color: var(--navy-900); font-size: 1.75rem; }
.stat-card > a { font-size: .78rem; font-weight: 750; }
.stat-card--accent { color: var(--white); border-color: transparent; background: linear-gradient(140deg, var(--purple-700), var(--navy-900)); }
.stat-card--accent > span, .stat-card--accent > strong, .stat-card--accent > small { color: var(--white); }
.dashboard-columns { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(280px, .75fr); gap: 1rem; }
.dashboard-stack { display: grid; align-content: start; gap: 1rem; }
.panel__header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.panel__header h2 { margin-bottom: 0; font-size: 1.3rem; }
.recommendation { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1rem; }
.recommendation .material-icon { margin: 0; }
.recommendation h3 { margin: .4rem 0; }
.recommendation p { margin-bottom: .7rem; }
.list-stack, .notification-list { display: grid; }
.list-item { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .8rem; padding: .8rem 0; border-top: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.list-item:first-child { border-top: 0; }
.list-item .material-icon { width: 38px; height: 38px; margin: 0; }
.list-item > span:nth-child(2) { min-width: 0; }
.notification-list > div { padding: .75rem 0; border-top: 1px solid var(--line); }
.notification-list > div:first-child { border-top: 0; }
.notification-list p { margin: .15rem 0 0; font-size: .84rem; }
.count-badge { display: grid; min-width: 28px; height: 28px; place-items: center; padding-inline: .45rem; border-radius: 999px; color: var(--purple-800); background: var(--purple-100); font-size: .75rem; font-weight: 800; }
.help-card { display: flex; gap: .9rem; padding: 1.2rem; border-radius: var(--radius); color: var(--white); background: linear-gradient(145deg, var(--purple-700), var(--purple-950)); }
.help-card > span { display: grid; width: 38px; height: 38px; place-items: center; flex: 0 0 auto; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; font-weight: 900; }
.help-card p { margin: .3rem 0; color: rgba(255,255,255,.72); font-size: .84rem; }
.help-card a { color: var(--cyan); font-size: .82rem; font-weight: 750; }
.filter-bar { display: flex; flex-wrap: wrap; align-items: flex-end; gap: .75rem; margin-bottom: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
.material-grid--app { grid-template-columns: repeat(3, minmax(240px, 1fr)); }
.material-card--progress .progress { margin-top: 1rem; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; color: var(--muted); font-size: .8rem; }
.material-view__header { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: 1rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, var(--white), var(--lilac-50)); }
.material-view__header h1 { margin: .7rem 0; font-size: clamp(2rem, 4vw, 3.2rem); }
.material-view__body { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; gap: 1rem; }
.material-content { min-height: 460px; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.prose { color: #414b66; line-height: 1.8; }
.external-resource, .file-list { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.file-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .8rem; padding: .8rem 0; border-top: 1px solid var(--line); }
.file-row .material-icon { margin: 0; }
.material-progress { position: sticky; top: 84px; }
.large-number { display: block; margin-bottom: .7rem; color: var(--purple-700); font-size: 2.5rem; }
.material-progress dl, .profile-summary dl { display: grid; gap: .55rem; }
.material-progress dl div, .profile-summary dl div { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: .45rem; border-bottom: 1px solid var(--line); }
.material-progress dt, .profile-summary dt { color: var(--muted); font-size: .8rem; }
.material-progress dd, .profile-summary dd { margin: 0; font-weight: 750; }
.two-column-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; align-items: start; }
.two-column-layout--admin { grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); }
.table-panel { margin-top: 1rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .83rem; }
th, td { padding: .8rem .7rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; }
td strong, td small { display: block; }
.status { color: #42506c; background: #eef0f5; }
.status--active, .status--approved, .status--published, .status--completed, .status--answered, .status--resolved { color: var(--success); background: var(--success-bg); }
.status--pending, .status--under_review, .status--draft, .status--in_review, .status--waiting_staff, .status--waiting_student { color: var(--warning); background: var(--warning-bg); }
.status--suspended, .status--rejected, .status--revoked, .status--closed { color: var(--danger); background: var(--danger-bg); }
.priority { color: var(--purple-800); background: var(--purple-100); }
.priority--high, .priority--urgent { color: var(--danger); background: var(--danger-bg); }
.purchase-form { margin-top: 1rem; }
.simulation-heading { align-items: center; }
.timer { padding: .65rem 1rem; border-radius: 12px; color: var(--navy-900); background: #dffbfc; font-weight: 850; }
.simulation-progress { position: sticky; top: 68px; z-index: 8; display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(255,255,255,.95); box-shadow: var(--shadow-sm); }
.simulation-progress .progress { flex: 1; }
.question-card { margin: 0 0 1rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.question-card legend { width: 100%; padding: 0 0 1rem; font-size: 1.05rem; }
.question-card legend span { display: block; margin-bottom: .4rem; color: var(--purple-700); font-size: .72rem; text-transform: uppercase; }
.option-list { display: grid; gap: .6rem; }
.option { display: flex; align-items: flex-start; gap: .65rem; padding: .8rem; border: 1px solid var(--line); border-radius: 11px; transition: border-color .15s, background .15s; }
.option:hover { border-color: var(--purple-200); background: var(--lilac-50); }
.option input { margin-top: .25rem; accent-color: var(--purple-600); }
.simulation-submit { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.2rem; border: 1px solid var(--purple-200); border-radius: var(--radius); background: var(--purple-100); }
.simulation-submit p { margin: 0; }
.score-ring { display: grid; width: 115px; height: 115px; place-items: center; flex: 0 0 auto; border: 10px solid #f3b5c0; border-radius: 50%; color: var(--danger); background: var(--white); font-size: 1.55rem; font-weight: 900; }
.score-ring--pass { color: var(--success); border-color: #a4e4cf; }
.result-summary { display: flex; gap: 1rem; margin-bottom: 1rem; }
.result-summary > span { min-width: 180px; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
.result-summary strong, .result-summary small { display: block; }
.result-list { display: grid; gap: 1rem; }
.result-card { padding: 1.4rem; border: 1px solid #edb1bd; border-left: 5px solid var(--danger); border-radius: var(--radius); background: var(--white); }
.result-card--correct { border-color: #a2ddca; border-left-color: var(--success); }
.result-card__status { margin-bottom: .6rem; color: var(--danger); font-weight: 850; }
.result-card--correct .result-card__status { color: var(--success); }
.result-options { display: grid; gap: .4rem; padding: 0; list-style: none; }
.result-options li { padding: .55rem .7rem; border-radius: 8px; background: #f4f5f8; }
.result-options .is-correct { color: var(--success); background: var(--success-bg); }
.result-options .is-selected:not(.is-correct) { color: var(--danger); background: var(--danger-bg); }
.explanation { margin-top: 1rem; padding: 1rem; border-radius: 11px; background: var(--purple-100); }
.explanation p { margin: .3rem 0 0; }
.ticket-list { display: grid; }
.ticket-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.ticket-item > div { display: grid; gap: .3rem; }
.ticket-thread { display: grid; gap: .8rem; margin-bottom: 1rem; }
.message-bubble { width: min(86%, 760px); padding: 1rem; border: 1px solid var(--line); border-radius: 6px 18px 18px 18px; background: var(--white); box-shadow: var(--shadow-sm); }
.message-bubble--mine { justify-self: end; border-color: var(--purple-200); border-radius: 18px 6px 18px 18px; background: var(--purple-100); }
.message-bubble--internal { border-color: #ecd184; background: var(--warning-bg); }
.message-bubble header { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .75rem; }
.message-bubble p { margin: .5rem 0; color: var(--ink); }
.ticket-actions { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 1rem; margin-top: 1rem; }
.rating-form { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.rating-form input { min-width: 220px; }
.profile-summary { text-align: center; }
.profile-summary h2 { margin: 1rem 0 .2rem; }
.profile-summary dl { margin-top: 1.5rem; text-align: left; }

.editor-panel { margin-bottom: 1rem; }
.editor-panel[open] > summary { border-bottom: 1px solid var(--line); }
.editor-panel form { padding: 1.25rem; }
.stack-cards { display: grid; gap: .75rem; margin-top: 1rem; }
.stack-cards--compact { max-height: 440px; overflow-y: auto; }
.admin-item { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--lilac-50); }
.admin-item h3 { margin: .4rem 0; }
.admin-item p { margin-bottom: .25rem; }
.admin-item ul { margin-bottom: 0; padding-left: 1.2rem; color: var(--muted); font-size: .8rem; }
.table-form, .table-actions, .review-form { display: flex; flex-wrap: wrap; gap: .45rem; }
.table-form select { min-width: 110px; }
.review-form { min-width: 260px; }
.review-form textarea { width: 100%; }
.inline-admin-form { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; align-items: end; gap: .8rem; }
.inline-admin-form .check-field { grid-column: 1 / -1; }
.option-editor, .question-picker { margin: 0 0 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.option-editor__row { display: grid; grid-template-columns: auto 1fr; gap: .6rem; margin-top: .55rem; }
.option-editor__row input[type="radio"] { accent-color: var(--purple-600); }
.option-editor__row input[type="text"], .option-editor__row input:not([type]) { min-height: 42px; padding: .55rem .7rem; border: 1px solid #cfd4e2; border-radius: 9px; }
.question-picker { display: grid; max-height: 330px; gap: .45rem; overflow-y: auto; }
.question-picker label { display: flex; align-items: flex-start; gap: .5rem; padding: .55rem; border-radius: 8px; background: var(--lilac-50); font-size: .8rem; }
.question-picker input { margin-top: .2rem; accent-color: var(--purple-600); }
.settings-form { max-width: 820px; }

@media (max-width: 1050px) {
    .site-nav { gap: .7rem; }
    .site-nav > a:not(.button) { font-size: .78rem; }
    .hero__grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid, .admin-stat-grid { grid-template-columns: repeat(2, 1fr); }
    .material-grid--app { grid-template-columns: repeat(2, minmax(240px, 1fr)); }
    .inline-admin-form { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 850px) {
    .menu-toggle { display: grid; place-items: center; }
    .site-nav { position: absolute; top: calc(100% + 1px); right: 1rem; left: 1rem; display: none; align-items: stretch; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-md); }
    .site-nav.is-open { display: grid; }
    .site-nav > a { padding: .45rem; }
    .hero { padding-top: 2.5rem; }
    .hero__grid, .split-section, .form-page-grid, .dashboard-columns, .material-view__body, .two-column-layout, .two-column-layout--admin { grid-template-columns: 1fr; }
    .hero__visual { min-height: 360px; }
    .hero__visual img { min-height: 360px; }
    .pricing-grid, .testimonial-grid, .material-grid, .principles-grid { grid-template-columns: 1fr; }
    .price-card--featured { transform: none; }
    .cta-panel { align-items: flex-start; flex-direction: column; }
    .app-shell { display: block; }
    .app-sidebar { position: fixed; inset: 0 auto 0 0; z-index: 150; width: min(88vw, 300px); transform: translateX(-105%); transition: transform .2s ease; box-shadow: var(--shadow-md); }
    .app-sidebar.is-open { transform: translateX(0); }
    .app-topbar { justify-content: space-between; }
    .menu-toggle--dark { color: var(--white); border-color: var(--navy-800); background: var(--navy-900); }
    .material-progress { position: static; }
}

@media (max-width: 620px) {
    :root { --radius: 16px; --radius-lg: 22px; }
    .container { width: min(calc(100% - 1.25rem), var(--container)); }
    .site-header__inner { min-height: 66px; }
    .brand__mark { width: 38px; height: 38px; }
    .brand__text small { display: none; }
    .hero h1 { font-size: 2.55rem; }
    .hero__visual { min-height: 300px; }
    .hero__visual img { min-height: 300px; }
    .floating-card { display: none; }
    .feature-grid, .dashboard-grid, .admin-stat-grid, .material-grid--app, .form-grid, .form-grid--three, .inline-admin-form { grid-template-columns: 1fr; }
    .section { padding: 3.5rem 0; }
    .intro-strip { align-items: flex-start; }
    .metric-row { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .metric-row strong { font-size: 1.25rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .dashboard-heading, .material-view__header, .simulation-submit, .file-row { align-items: flex-start; flex-direction: column; }
    .dashboard-heading { display: flex; }
    .dashboard-heading > .button { width: 100%; }
    .recommendation { grid-template-columns: auto minmax(0,1fr); }
    .recommendation .button { grid-column: 1 / -1; width: 100%; }
    .filter-bar { align-items: stretch; flex-direction: column; }
    .form-field--inline { min-width: 0; }
    .material-view__header form, .material-view__header .button { width: 100%; }
    .file-row { display: flex; }
    .result-summary { flex-direction: column; }
    .message-bubble { width: 100%; }
    .rating-form { align-items: stretch; flex-direction: column; }
    .table-panel { padding: 1rem; }
}

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