:root {
  --atu-navy: #172e52;
  --atu-blue: #2857b5;
  --atu-gold: #e8c568;
  --atu-ink: #152238;
  --atu-mist: #f4f7fb;
  --bs-link-color: #2857b5;
  --bs-link-color-rgb: 40, 87, 181;
  --bs-link-hover-color: #172e52;
  --bs-link-hover-color-rgb: 23, 46, 82;
}

html, body { min-height: 100%; }
@font-face { font-family: "Poppins Footer"; src: url("../fonts/poppins/Poppins-Regular.cd6b896a19b4.ttf") format("truetype"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Poppins Footer"; src: url("../fonts/poppins/Poppins-Medium.614a91afc751.ttf") format("truetype"); font-style: normal; font-weight: 500; font-display: swap; }
body { display: flex; flex-direction: column; color: var(--atu-ink); background: var(--atu-mist); font-family: Aptos, "Trebuchet MS", "Segoe UI", Arial, sans-serif; }
.platform-footer { font-family: "Poppins Footer", "Avenir Next", "Segoe UI", sans-serif; }
.footer-heading { color: #283b55; font-size: .78rem; font-weight: 500; letter-spacing: .015em; line-height: 1.6; }
.footer-detail { margin-top: .35rem; color: #566578; font-size: .72rem; font-weight: 400; line-height: 1.7; }
h1, h2, .navbar-brand { font-family: Cambria, Georgia, "Times New Roman", serif; }
h1, h2 { color: #08162b; letter-spacing: -.035em; }
.brand-lockup { display: flex; align-items: center; gap: .75rem; }
.brand-lockup img, .welcome-brand img, .cohort-placeholder img { object-fit: contain; padding: .35rem; background: #fff; border-radius: .85rem; }
.brand-lockup small { display: block; font: .68rem Aptos, "Segoe UI", sans-serif; letter-spacing: .06em; opacity: .8; margin-top: .25rem; }
.platform-nav { padding-block: 1rem; }
.platform-nav .container > .d-flex { flex-wrap: wrap; }
.card, .content-panel, .dashboard-card { box-shadow: 0 5px 24px rgba(23,46,82,.035); }
.card { border-color: #e1e5ec; border-radius: 1rem; }
.card-body { padding: 1.75rem; }
.btn { border-radius: .65rem; padding: .65rem 1rem; }
.btn-sm { padding: .4rem .75rem; }
.btn-primary { background: linear-gradient(100deg, #172e52, #2b4b78); }
.btn-primary:hover, .btn-primary:focus { background: #172e52; }
.btn-outline-primary { --bs-btn-color: #2857b5; --bs-btn-border-color: #2857b5; --bs-btn-hover-bg: #2857b5; --bs-btn-hover-border-color: #2857b5; --bs-btn-active-bg: #2857b5; --bs-btn-active-border-color: #2857b5; }
.btn-outline-secondary { --bs-btn-color: #536273; --bs-btn-border-color: #798594; --bs-btn-hover-bg: #536273; --bs-btn-hover-border-color: #536273; }
.platform-nav .text-white-50 { color: #c5d0e0 !important; }
.text-secondary { color: #5c6879 !important; }
.dashboard-card strong { font-size: 1.1rem; }
.dashboard-card > span:not(.metric) { color: #5c6879; }
.access-layout { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 7%; min-height: 65vh; }
.access-introduction h1 { font-size: clamp(2.5rem, 4.5vw, 4rem); line-height: 1.05; }
.access-description { color: #5c6879; line-height: 1.8; }
.access-steps { list-style: none; counter-reset: access; padding: 0; margin-top: 2rem; }
.access-steps li { counter-increment: access; display: flex; gap: .7rem; align-items: center; margin-block: .7rem; color: #536273; font-size: .85rem; }
.access-steps li::before { content: counter(access); display: grid; place-items: center; width: 1.9rem; height: 1.9rem; border: 1px solid #d2d9e3; border-radius: 50%; background: #fff; color: #172e52; }
.welcome-page > .platform-nav, .welcome-page > footer { display: none; }
.welcome-layout { display: grid; grid-template-columns: 57.5% 42.5%; min-height: 100vh; }
.welcome-story { padding: 2.25rem clamp(2rem, 6vw, 6rem); color: #fff; background: radial-gradient(ellipse at 90% 25%, #62707c66, transparent 50%), linear-gradient(135deg, #10213d 8%, #2c4a73 65%, #793c20 110%); position: relative; overflow: hidden; }
.welcome-story::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(#ffffff04 1px, transparent 1px), linear-gradient(90deg, #ffffff04 1px, transparent 1px); background-size: 64px 64px; }
.welcome-story > * { position: relative; }
.welcome-brand { display: flex; align-items: center; gap: .8rem; margin-bottom: 2.25rem; }
.welcome-brand strong { display: block; font: bold 1.15rem Cambria, Georgia, serif; }
.welcome-brand span { display: block; font-size: .7rem; color: #c4cfdf; letter-spacing: .035em; margin-top: .3rem; }
.cohort-placeholder { display: flex; align-items: center; gap: 1rem; border: 1px solid #ffffff40; border-radius: 1.5rem; background: repeating-linear-gradient(135deg, #ffffff12 0 15px, #ffffff0c 15px 30px); padding: .9rem 1.25rem; margin-bottom: 1.2rem; }
.cohort-placeholder strong { display: block; font: bold 1.2rem Cambria, Georgia, serif; }
.cohort-placeholder span { display: block; font-size: .7rem; color: #d4ddeb; margin-top: .3rem; }
.story-eyebrow { text-transform: uppercase; font-size: .75rem; letter-spacing: .12em; color: #d4ddeb; }
.story-eyebrow::before { content: ""; display: inline-block; width: .45rem; height: .45rem; border-radius: 50%; background: var(--atu-gold); margin-right: .6rem; }
.welcome-story h1 { font-size: clamp(2.7rem, 4.2vw, 4.5rem); line-height: .98; color: #fff; font-weight: 700; margin: 1rem 0 1.5rem; }
.welcome-story em { color: var(--atu-gold); font-style: normal; }
.story-description { color: #d3ddea; font-size: .9rem; line-height: 1.65; max-width: 39rem; }
.story-rule { display: flex; gap: .45rem; margin: 1.8rem 0 3rem; }
.story-rule span { width: 1.4rem; height: .25rem; background: #ffffff40; border-radius: 1rem; }
.story-rule span:last-child { width: 2.5rem; background: #fff; }
.engineering-fields { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid #ffffff26; padding-top: 1rem; gap: .6rem; margin-bottom: 0; overflow-wrap: anywhere; }
.engineering-fields dt { font-size: .8rem; letter-spacing: .06em; }
.engineering-fields dd { font-size: .65rem; color: #c4cfdf; margin: .6rem 0 0; }
.welcome-learning { padding: 1.4rem; margin-bottom: 2rem; border: 1px solid #d6dfec; border-top: 4px solid var(--atu-gold); border-radius: 1rem; background: linear-gradient(145deg, #fffaf0, #fff); }
.welcome-learning h2 { font-size: 1.8rem; }
.welcome-learning h3 { line-height: 1.35; }
#learning-text { line-height: 1.65; overflow-wrap: anywhere; }
#learning-source, #learning-license { font-size: .8rem; }
.learning-credit, .learning-note { font-size: .75rem; color: #536273; margin: .6rem 0; }
.learning-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.learning-actions .btn { min-height: 44px; }
.welcome-access { background: radial-gradient(ellipse at 100% 0, #edf2fa, #fff 60%); padding: 2.25rem clamp(2rem, 6vw, 6rem); display: flex; flex-direction: column; justify-content: center; }
.welcome-access h2 { font-size: clamp(1.8rem, 2.5vw, 2.3rem); line-height: 1.1; margin-bottom: 1rem; }
.welcome-access > .eyebrow { color: #334c6a; font-size: .65rem; }
.role-cards { display: grid; gap: .5rem; margin-bottom: 1rem; }
.role-card { display: flex; align-items: center; gap: .8rem; padding: .65rem .9rem; border: 1px solid #e0e3e9; border-radius: .85rem; color: #152238; background: #fff; text-decoration: none; box-shadow: 0 2px 2px #172e5204; }
.role-card:hover { border-color: #778eac; background: #f4f7fb; }
.role-monogram { display: grid; place-items: center; flex: 0 0 2.75rem; height: 2.75rem; border-radius: .8rem; background: linear-gradient(135deg, #172e52, #3a61b4); color: #fff; font-size: .8rem; }
.role-card strong { display: block; font-size: .9rem; }
.role-card small { display: block; color: #596779; font-size: .69rem; margin-top: .2rem; }
.role-arrow { margin-left: auto; color: #415b79; }
.welcome-action { display: flex; align-items: center; justify-content: space-between; margin-bottom: .6rem; font-size: .9rem; }
.welcome-action.btn-outline-secondary { justify-content: center; }
.access-note { font-size: .7rem; color: #596779; line-height: 1.6; margin: .3rem 0 1rem; }
.help-card .role-monogram { flex-basis: 2.2rem; height: 2.2rem; border-radius: .6rem; }
.access-footer { text-transform: uppercase; letter-spacing: .07em; color: #596779; font-size: .6rem; text-align: center; margin: 3rem 0 0; }
@media (max-width: 991px) { .welcome-layout { grid-template-columns: 1fr 1fr; } .welcome-story, .welcome-access { padding: 2rem; } .welcome-story h1 { font-size: 3rem; } .access-layout { gap: 2rem; } }
@media (max-width: 767px) { .welcome-layout, .access-layout { grid-template-columns: 1fr; } .welcome-story, .welcome-access { padding: 2rem 1.5rem; } .welcome-story h1 { max-width: 30rem; } .story-rule { margin-bottom: 1.5rem; } .access-footer { margin-top: 2rem; } .access-introduction h1 { font-size: 2.5rem; } }
@media (prefers-reduced-motion: reduce) { .dashboard-card { transition: none; } }
main { flex: 1; }
.platform-nav { background: var(--atu-navy); }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 2000; background: #fff; padding: .75rem; }
.hero { background: linear-gradient(135deg, #eef6ff 0%, #fff9e9 100%); border: 1px solid #dbe8f4; }
.eyebrow { color: var(--atu-blue); font-size: .78rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.feature-card, .dashboard-card, .empty-state { border: 1px solid #dce4ed; border-radius: 1rem; padding: 1.5rem; background: #fff; }
.page-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.content-panel { border: 1px solid #dce4ed; border-radius: 1rem; padding: 1.5rem; background: #fff; margin-top: 1.5rem; }
.form-shell textarea { display: block; width: 100%; min-height: 8rem; padding: .6rem .75rem; border: 1px solid #abb8c6; border-radius: .45rem; }
.form-shell ul { padding-left: 1.25rem; }
.form-shell { max-width: 620px; }
.form-control, .form-select, input, select { max-width: 100%; }
.form-shell input:not([type="checkbox"]):not([type="radio"]), .form-shell select { display: block; width: 100%; padding: .6rem .75rem; border: 1px solid #abb8c6; border-radius: .45rem; }
.form-shell input[type="checkbox"], .form-shell input[type="radio"] { margin-right: .5rem; }
.dashboard-card { display: flex; flex-direction: column; gap: .5rem; min-height: 155px; color: inherit; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
a.dashboard-card:hover { transform: translateY(-2px); box-shadow: 0 .5rem 1rem rgba(11,41,72,.1); }
.dashboard-card.muted { background: var(--atu-mist); }
.dashboard-card .metric { color: var(--atu-blue); font-size: 2.2rem; font-weight: 800; }
.status-icon { display: inline-grid; place-items: center; width: 4rem; height: 4rem; border-radius: 50%; background: #dff5e6; color: #126a31; font-size: 2rem; font-weight: 800; }
.notification-unread { border-left: .3rem solid var(--atu-gold); background: #fffaf0; }
.metric-card { height: 100%; border: 1px solid #dce4ed; border-radius: .8rem; padding: 1rem; background: var(--atu-mist); display: flex; flex-direction: column; gap: .35rem; }
.metric-card span { color: #536273; font-size: .8rem; text-transform: capitalize; }
.metric-card strong { color: var(--atu-blue); font-size: 1.8rem; }
.filter-bar input, .filter-bar select { width: 100%; padding: .5rem .65rem; border: 1px solid #abb8c6; border-radius: .4rem; }
.payload-preview { white-space: pre-wrap; overflow-wrap: anywhere; padding: 1rem; border-radius: .5rem; background: #0f1f32; color: #eef6ff; }
.atu-form-field input:not([type="checkbox"]):not([type="radio"]),
.atu-form-field select,
.atu-form-field textarea { display: block; box-sizing: border-box; width: 100%; max-width: 100%; padding: .6rem .75rem; border: 1px solid #abb8c6; border-radius: .45rem; }
.atu-form-field textarea { min-height: 8rem; resize: vertical; }
.btn-primary { background-color: var(--atu-navy); border-color: var(--atu-navy); }
.text-break { overflow-wrap: anywhere; }
@media (max-width: 575px) {
  .platform-nav .container { align-items: flex-start; }
  .platform-nav .container > .d-flex { flex-wrap: wrap; width: 100%; gap: .75rem !important; margin-top: .75rem; }
}
*:focus-visible { outline: 3px solid var(--atu-gold); outline-offset: 2px; }