@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');
:root{--dark:#071018;--ink:#13212b;--muted:#687985;--line:#dce5ea;--green:#62e6a5;--blue:#4ebdff}*{box-sizing:border-box}body{margin:0;font:16px/1.65 Inter,Arial;color:var(--ink)}a{text-decoration:none;color:inherit}.wrap{width:min(1120px,92%);margin:auto}header{height:72px;background:rgba(7,16,24,.97);position:sticky;top:0;z-index:10;border-bottom:1px solid #20313f}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.logo{font:700 1.2rem 'Space Grotesk';color:#fff}.logo b{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--blue));color:#071018;margin-right:8px}.logo span{color:var(--green)}.links{display:flex;gap:18px}.links a{font-size:.87rem;color:#b8c7d1}.links a:hover{color:#fff}.menu{display:none;background:none;border:0;color:#fff;font-size:1.4rem}.hero,.pagehero{background:var(--dark);color:#fff}.hero{padding:95px 0}.pagehero{padding:65px 0}.eyebrow{color:#3bc080;font-size:.73rem;font-weight:800;letter-spacing:2px}.hero h1,.pagehero h1{font:700 clamp(2.7rem,6vw,5rem)/1.05 'Space Grotesk';margin:12px 0;letter-spacing:-2px}.hero h1 em{font-style:normal;color:var(--green)}.hero p,.pagehero p{color:#b4c5cf;max-width:780px}.btn{display:inline-block;background:var(--green);color:#06120c;padding:12px 18px;border-radius:9px;font-weight:800;margin-top:18px}.section{padding:65px 0}.toolbar{display:flex;gap:10px;margin-bottom:28px}.toolbar input,.toolbar select{padding:12px;border:1px solid var(--line);border-radius:9px;font:inherit}.toolbar input{flex:1}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff;transition:.2s}.card:hover{transform:translateY(-4px);box-shadow:0 15px 35px #10212c12}.portrait{height:205px;background:linear-gradient(135deg,#d9f6e8,#d8efff);display:grid;place-items:center;font:700 3rem 'Space Grotesk';color:#1c5c49}.body{padding:20px}.body h3{font:700 1.3rem 'Space Grotesk';margin:5px 0}.body p{color:var(--muted);margin:5px 0 12px}.pill{font-size:.68rem;color:#148356;font-weight:800;letter-spacing:1px}.view{color:#087e55;font-weight:800}.profile{display:grid;grid-template-columns:300px 1fr;gap:35px;align-items:start}.profile .portrait{height:330px;border-radius:18px}.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:20px 0}.fact{background:#f4f8fa;border-radius:10px;padding:14px}.fact b{display:block;font-size:.75rem}.muted{color:var(--muted)}.related{display:flex;flex-wrap:wrap;gap:8px}.related a{border:1px solid var(--line);padding:8px 12px;border-radius:99px}.dark{background:var(--dark);color:#fff}.dark p{color:#b4c5cf}footer{background:#050c12;color:#9aabb8;padding:30px 0;font-size:.84rem}@media(max-width:800px){.links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--dark);padding:18px;flex-direction:column}.links.open{display:flex}.menu{display:block}.grid{grid-template-columns:1fr}.profile{grid-template-columns:1fr}.profile .portrait{height:230px}.facts{grid-template-columns:1fr}.toolbar{flex-direction:column}.hero{padding:70px 0}}

.card .portrait{height:235px;overflow:hidden;background:#eaf4f7}
.card .portrait img,.profile .portrait img{width:100%;height:100%;object-fit:cover;display:block}
.card .image-credit,.profile .image-credit{font-size:.64rem;color:#7a8992;margin-top:7px}
.card .image-credit a,.profile .image-credit a{color:#087e55}
.profile .portrait{overflow:hidden}

.initials{display:grid;place-items:center;width:100%;height:235px;font:700 3rem 'Space Grotesk';color:#1c5c49}
.knowledge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.knowledge-card{border:1px solid var(--line);border-radius:16px;padding:22px;background:#fff;box-shadow:0 8px 28px #10212c08}.knowledge-card h3{font:700 1.35rem/1.2 'Space Grotesk';margin:8px 0}.knowledge-card p{color:var(--muted)}.kicon{font-size:2.2rem}.knowledge-card details{margin-top:15px;border-top:1px solid var(--line);padding-top:12px}.knowledge-card summary{cursor:pointer;font-weight:800;color:#087e55}.detail{padding-top:12px}.detail b{font-size:.78rem;text-transform:uppercase;letter-spacing:.7px}.formula{font:700 1.05rem 'Space Grotesk';background:#f1f7fa;border-radius:10px;padding:12px;margin:14px 0;color:#0b5e46}.warning{font-size:.82rem!important;color:#8a5b00!important;background:#fff8df;padding:10px;border-radius:8px}.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.feature-strip a{border:1px solid #29404e;border-radius:14px;padding:18px;background:#0c1b25}.feature-strip b,.feature-strip span{display:block}.feature-strip b{color:#fff}.feature-strip span{color:#aebfc9;font-size:.86rem;margin-top:6px}.callout{border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;justify-content:space-between;align-items:center;gap:20px}.search-large{display:flex;margin-bottom:35px}.search-large input{width:100%;padding:18px 20px;border:2px solid var(--line);border-radius:14px;font:inherit;font-size:1.05rem}.mini-results{display:grid;gap:10px;margin:12px 0 35px}.result{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;padding:15px}.result span{color:var(--muted);font-size:.9rem}.empty{padding:30px;border:1px dashed #b9c7cf;border-radius:14px;color:var(--muted)}#searchResults>h2{font:700 1.5rem 'Space Grotesk';margin-top:30px}.author-box{display:grid;grid-template-columns:110px 1fr;gap:25px;align-items:start;border:1px solid var(--line);padding:28px;border-radius:18px;margin-bottom:24px}.author-avatar{width:110px;height:110px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--green),var(--blue));font:700 3rem 'Space Grotesk';color:#071018}@media(max-width:900px){.knowledge-grid{grid-template-columns:repeat(2,1fr)}.feature-strip{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.knowledge-grid{grid-template-columns:1fr}.feature-strip{grid-template-columns:1fr}.callout{flex-direction:column;align-items:flex-start}.author-box{grid-template-columns:1fr}.author-avatar{width:80px;height:80px;font-size:2rem}}

.mini-meta{display:grid;gap:6px;margin:12px 0;font-size:.9rem;color:#667085}.detail-panel{background:#fff;border:1px solid #e7eaf0;border-radius:20px;padding:24px;margin-top:24px;box-shadow:0 10px 30px rgba(0,0,0,.04)}.detail-panel h2{margin-top:22px}.detail-panel h2:first-child{margin-top:0}.detail-panel ul{padding-left:20px}.detail-panel li{margin:7px 0}.profile .portrait{min-height:320px}

.course-page{max-width:980px}.course-nav{margin-bottom:18px}.course-nav a{color:inherit;font-weight:700}.course-article{background:var(--card,#fff);border:1px solid rgba(127,127,127,.18);border-radius:20px;padding:clamp(22px,4vw,48px);box-shadow:0 10px 30px rgba(0,0,0,.06)}.course-article h2{margin-top:30px}.course-article h2:first-child{margin-top:0}.course-article p,.course-article li{font-size:1.03rem;line-height:1.8}.course-article li{margin:.45rem 0}.course-card .detail{display:block}.course-card{cursor:default}.course-card .view{display:inline-block;margin-top:8px}.image-credit{font-size:.75rem;margin-top:4px}
.complete-profile{margin-top:22px}.complete-profile h2{margin-top:28px;margin-bottom:10px}.complete-profile p,.complete-profile li{line-height:1.75}.profile-badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.profile-badge{display:inline-block;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:7px 11px;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;background:rgba(255,255,255,.04)}.knowledge-path{padding:16px;border-left:3px solid currentColor;background:rgba(127,127,127,.08)}.quick-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-top:14px}.quick-facts div{padding:14px;border:1px solid rgba(127,127,127,.2);border-radius:12px}.quick-facts b{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;opacity:.7;margin-bottom:5px}.quick-facts span{display:block;line-height:1.45}.source-link{font-weight:700}.complete-profile ol,.complete-profile ul{padding-left:22px}

/* PHASE 4 */
.secondary{margin-left:10px}.knowledge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.encyclopedia{margin-top:28px}.profile-section{padding:26px 0;border-top:1px solid rgba(0,0,0,.1)}.profile-section h2{margin:6px 0 10px}.profile-section ul{padding-left:22px}.profile-section li{margin:7px 0}.path-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.path-row span{padding:10px 14px;border:1px solid rgba(0,0,0,.12);border-radius:999px;background:#fff}.steps{display:grid;gap:8px;margin:18px 0}.steps>div{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid rgba(0,0,0,.08);border-radius:12px}.steps b{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#111;color:#fff}.compare-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:25px 0}.compare-controls select{padding:13px;border-radius:10px;border:1px solid #bbb;background:#fff}.compare-box{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare-col{padding:25px;border:1px solid rgba(0,0,0,.12);border-radius:18px;background:#fff}.compare-col h2{margin-top:0}.knowledge-card details{margin-top:14px}.knowledge-card summary{cursor:pointer;font-weight:700}.warning{padding:10px;border-left:4px solid #999}.image-credit{font-size:11px;opacity:.7;margin-top:4px}.portrait img{width:100%;height:100%;object-fit:cover}.initials{display:grid;place-items:center;width:100%;height:100%;font-size:42px;font-weight:800}.mini-results{display:grid;gap:10px;margin-bottom:30px}.result{display:flex;justify-content:space-between;gap:15px;padding:16px;border:1px solid rgba(0,0,0,.12);border-radius:12px;text-decoration:none}.result span{opacity:.75}.knowledge-grid .knowledge-card{height:100%}
@media(max-width:760px){.knowledge-grid,.compare-box,.compare-controls{grid-template-columns:1fr}.secondary{margin-left:0;margin-top:10px}.path-row{align-items:flex-start}.result{flex-direction:column}}
/* Phase 4.5 deep encyclopedia */
.deep-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:18px 0}.deep-card{padding:18px;border:1px solid rgba(127,127,127,.2);border-radius:16px;background:rgba(127,127,127,.05)}.deep-card h3{margin:0 0 8px}.source-list a{display:block;margin:7px 0}.timeline-note{border-left:3px solid currentColor;padding-left:14px}.profile-section ul{line-height:1.75}.profile-section{margin-top:24px}.profile-section h2{margin-bottom:8px}.profile-section p{line-height:1.75}
.hero.compact{padding:64px 0 48px}.timeline{max-width:900px;margin:auto;display:grid;gap:16px}.timeline-item{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:start;padding:22px;border:1px solid var(--line,#ddd);border-radius:18px;background:var(--card,#fff)}.timeline-item b{font-size:1.2rem}.timeline-item span{line-height:1.65}.quiz-grid{display:grid;gap:20px;max-width:900px;margin:auto}.quiz-card{padding:24px;border:1px solid var(--line,#ddd);border-radius:18px;background:var(--card,#fff)}.quiz-options{display:grid;gap:10px;margin-top:16px}.quiz-options button{text-align:left;padding:13px 15px;border:1px solid var(--line,#ddd);border-radius:12px;background:transparent;cursor:pointer}.quiz-options button:disabled{cursor:default;opacity:.75}.quiz-feedback{min-height:24px;margin-bottom:0;font-weight:600}.quiz-feedback.correct{color:#16803c}.quiz-feedback.wrong{color:#b42318}.path-row.big{padding:30px;flex-wrap:wrap;justify-content:center;border:1px solid var(--line,#ddd);border-radius:20px;background:var(--card,#fff)}.path-row.big span{padding:10px 14px;border-radius:999px;background:rgba(127,127,127,.1)}@media(max-width:700px){.timeline-item{grid-template-columns:1fr;gap:8px}.links{max-height:70vh;overflow:auto}}

/* PHASE 6 interactive learning */
.sim-controls{display:grid;gap:14px;margin:18px 0}.sim-controls label{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;font-weight:700}.sim-controls input{grid-column:1/-1;width:100%}.sim-result,.tutor-answer{padding:18px;border:1px solid var(--line,#ddd);border-radius:14px;background:rgba(127,127,127,.07);line-height:1.7}.tutor-buttons{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.tutor-buttons button{padding:11px 14px;border:1px solid var(--line,#ddd);border-radius:999px;background:transparent;cursor:pointer}.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.stat-card{padding:22px;border:1px solid var(--line,#ddd);border-radius:18px;background:var(--card,#fff)}.stat-card b{display:block;font-size:2rem;margin-bottom:6px}.stat-card span{opacity:.75}.formula{font-size:1.3rem;font-weight:800;padding:12px 0}.sim-card output{font-variant-numeric:tabular-nums}@media(max-width:800px){.dashboard-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.dashboard-grid{grid-template-columns:1fr}}

/* PHASE 6 COLOR SYSTEM — UNIVERSE COSMIC TECH */
:root{
  --dark:#07111F;
  --ink:#E8F0F7;
  --muted:#9FB0BF;
  --line:#263A4D;
  --green:#35E0A1;
  --blue:#4AA8FF;
  --cyan:#37D6E6;
  --purple:#8B7CFF;
  --card:#0D1B2A;
  --surface:#0A1725;
  --surface-2:#112438;
  --white:#F7FBFF;
}
body{background:var(--dark);color:var(--ink)}
header{background:rgba(5,13,24,.96);border-bottom:1px solid #1E344A;backdrop-filter:blur(12px)}
.logo{color:var(--white)}
.logo b{background:linear-gradient(135deg,var(--cyan),var(--blue),var(--purple));color:#06111D}
.logo span{color:var(--cyan)}
.links a{color:#AFC0CF}.links a:hover{color:#fff}
.menu{color:#fff}
.hero,.pagehero{background:radial-gradient(circle at 80% 20%,rgba(55,214,230,.10),transparent 28%),radial-gradient(circle at 20% 80%,rgba(139,124,255,.10),transparent 30%),var(--dark)}
.eyebrow{color:var(--cyan)}
.hero h1 em{color:var(--cyan)}
.hero p,.pagehero p{color:#B7C7D5}
.btn{background:linear-gradient(135deg,var(--green),var(--cyan));color:#04121B;box-shadow:0 8px 24px rgba(55,224,161,.16)}
.section{background:var(--dark)}
.toolbar input,.toolbar select,.search-large input{background:var(--surface);color:var(--ink);border-color:var(--line)}
.toolbar input::placeholder,.search-large input::placeholder{color:#718697}
.card,.knowledge-card,.detail-panel,.course-article,.timeline-item,.quiz-card,.stat-card,.compare-col,.deep-card,.callout,.author-box{background:var(--card);border-color:var(--line);color:var(--ink)}
.card:hover{box-shadow:0 18px 45px rgba(0,0,0,.28)}
.card .portrait,.portrait{background:linear-gradient(135deg,#102D3B,#172B4A)}
.initials{color:#7DEFE1}
.body p,.knowledge-card p,.muted,.mini-meta,.result span{color:var(--muted)}
.pill,.view,.knowledge-card summary,.card .image-credit a,.profile .image-credit a{color:var(--cyan)}
.facts,.fact{background:var(--surface-2);color:var(--ink)}
.fact{border:1px solid var(--line)}
.related a,.path-row span,.steps>div,.compare-controls select,.quiz-options button,.tutor-buttons button{background:var(--surface);color:var(--ink);border-color:var(--line)}
.related a:hover,.quiz-options button:hover,.tutor-buttons button:hover{border-color:var(--cyan);background:#102B3D}
.dark{background:#050D18;color:var(--white)}
.dark p{color:#AFC0CF}
footer{background:#030914;color:#8FA2B2;border-top:1px solid #172B3E}
.feature-strip a{border-color:#234158;background:#0B1B2A}.feature-strip b{color:#fff}.feature-strip span{color:#AFC0CF}
.callout{box-shadow:0 10px 35px rgba(0,0,0,.16)}
.empty{border-color:#365064;color:var(--muted);background:var(--surface)}
.result{background:var(--surface);border-color:var(--line);color:var(--ink)}
.author-avatar{background:linear-gradient(135deg,var(--cyan),var(--blue),var(--purple));color:#06111D}
.detail-panel{box-shadow:0 12px 35px rgba(0,0,0,.20)}
.formula{background:#0C2534;color:#7DEFE1;border:1px solid #23485A}
.warning{color:#FFD37A!important;background:#332A12!important;border-color:#8B6B24!important}
.complete-profile h2,.profile-section h2{color:#F4FAFF}
.profile-badge{border-color:#29465D;background:#102234;color:#BFE7F0}
.knowledge-path{background:#0D2230}
.quick-facts div{background:var(--surface);border-color:var(--line)}
.quick-facts b{color:#9FB0BF}.quick-facts span{color:#E8F0F7}
.source-link{color:var(--cyan)}
.deep-card{background:#0C1B2A}
.timeline-item b{color:#7DEFE1}
.quiz-feedback.correct{color:#46E39A}.quiz-feedback.wrong{color:#FF7B88}
.path-row.big{background:var(--card);border-color:var(--line)}
.path-row.big span{background:#12283A}
.sim-result,.tutor-answer{background:#0C1B2A;border-color:var(--line)}
.sim-controls input{accent-color:var(--cyan)}
.stat-card b{color:#7DEFE1}
.profile .portrait{box-shadow:0 18px 45px rgba(0,0,0,.25)}
.course-nav a{color:var(--cyan)}
@media(max-width:800px){.links{background:#06101C;border-bottom:1px solid var(--line)}}

/* ULTIMATE PLATFORM LAYER */
:root{--cosmic-0:#030712;--cosmic-1:#071525;--cosmic-2:#0b1f35;--cyan:#32d9ff;--violet:#8b5cf6;--electric:#4ea1ff;--font-scale:1;--card:#0d1b2d;--surface:#f7fbff}body{font-size:calc(16px * var(--font-scale));background:var(--surface)}.universe-tools{background:#020914;color:#c9d8e8;border-bottom:1px solid #17324d;font-size:.78rem}.tools-inner{display:flex;gap:14px;align-items:center;min-height:38px}.tools-inner a{color:#b9d8f4}.tools-inner button{background:#10263b;color:#fff;border:1px solid #26445e;border-radius:7px;padding:3px 8px;cursor:pointer}.hero,.pagehero,.dark{background:radial-gradient(circle at 85% 15%,#122f59 0,#071525 38%,#030712 100%)}.btn{background:linear-gradient(135deg,var(--cyan),var(--electric));color:#03101d;box-shadow:0 8px 25px #32d9ff20}.secondary{background:linear-gradient(135deg,#8b5cf6,#4ea1ff);color:#fff}.card,.knowledge-card,.detail-panel,.compare-col,.course-article{background:#fff}.knowledge-card:hover{transform:translateY(-3px);box-shadow:0 18px 40px #0a19301a}.is-saved{background:#e8f7ff!important}.plan-item{display:grid;grid-template-columns:1.2fr 2fr 1fr auto;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:12px;margin:8px 0;background:#fff}.plan-item button{border:0;background:#eef3f7;border-radius:8px;padding:7px;cursor:pointer}.stats-board{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat-card{padding:22px;border-radius:16px;background:linear-gradient(135deg,#08172a,#102944);color:#fff;border:1px solid #1b3b5b}.stat-card b{display:block;font-size:2rem;color:var(--cyan)}.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}.tag-cloud button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:8px 12px}.article-cover{min-height:220px;border-radius:20px;background:radial-gradient(circle at 70% 30%,#1d4ed8,#081525 55%,#020712);display:grid;place-items:center;color:#fff;font:700 2.4rem 'Space Grotesk';text-align:center;padding:25px}.accessibility-panel{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px;border:1px solid var(--line);border-radius:12px}.accessibility-panel button{padding:8px 12px;border-radius:8px;border:1px solid var(--line);background:#fff}@media(max-width:700px){.tools-inner{overflow:auto;white-space:nowrap}.plan-item{grid-template-columns:1fr}.stats-board{grid-template-columns:1fr 1fr}}

/* PROFESSIONAL ACADEMIC BLUE — FINAL COLOR UPDATE */
:root{
  --dark:#123B7A;
  --ink:#0F172A;
  --muted:#64748B;
  --line:#E2E8F0;
  --green:#0EA5A4;
  --blue:#2563EB;
  --cyan:#06B6D4;
  --purple:#4F46E5;
  --card:#FFFFFF;
  --surface:#F8FAFC;
  --surface-2:#EFF6FF;
  --white:#FFFFFF;
  --cosmic-0:#0B1F44;
  --cosmic-1:#123B7A;
  --cosmic-2:#1D4ED8;
  --electric:#2563EB;
}
body{background:#F8FAFC;color:#0F172A}
header{background:#123B7A;border-bottom:1px solid #315C99}
.logo{color:#fff}.logo b{background:linear-gradient(135deg,#06B6D4,#2563EB);color:#fff}.logo span{color:#67E8F9}
.links a{color:#DCEBFF}.links a:hover{color:#fff}
.hero,.pagehero,.dark{background:linear-gradient(135deg,#0B1F44 0%,#123B7A 55%,#1D4ED8 100%)}
.hero,.pagehero{color:#fff}.eyebrow{color:#67E8F9}.hero h1 em{color:#67E8F9}.hero p,.pagehero p,.dark p{color:#D7E7FA}
.btn{background:linear-gradient(135deg,#2563EB,#06B6D4);color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.22)}
.section{background:#F8FAFC}
.toolbar input,.toolbar select,.search-large input{background:#fff;color:#0F172A;border-color:#CBD5E1}
.card,.knowledge-card,.detail-panel,.course-article,.timeline-item,.quiz-card,.compare-col,.deep-card,.callout,.author-box{background:#fff;color:#0F172A;border-color:#E2E8F0}
.card:hover,.knowledge-card:hover{box-shadow:0 16px 36px rgba(15,23,42,.10)}
.card .portrait,.portrait{background:linear-gradient(135deg,#DBEAFE,#CFFAFE)}
.initials{color:#1D4ED8}.body p,.knowledge-card p,.muted,.mini-meta,.result span{color:#64748B}
.pill,.view,.knowledge-card summary,.card .image-credit a,.profile .image-credit a,.source-link{color:#2563EB}
.facts,.fact{background:#EFF6FF;color:#0F172A}.fact{border-color:#DBEAFE}
.related a,.path-row span,.steps>div,.compare-controls select,.quiz-options button,.tutor-buttons button{background:#fff;color:#0F172A;border-color:#CBD5E1}
.related a:hover,.quiz-options button:hover,.tutor-buttons button:hover{border-color:#2563EB;background:#EFF6FF}
footer{background:#0B1F44;color:#B8CBE4;border-top:1px solid #315C99}
.feature-strip a{border-color:#315C99;background:#123B7A}.feature-strip span{color:#D7E7FA}
.empty{border-color:#CBD5E1;color:#64748B;background:#fff}
.result{background:#fff;border-color:#E2E8F0;color:#0F172A}
.author-avatar{background:linear-gradient(135deg,#2563EB,#06B6D4);color:#fff}
.detail-panel{box-shadow:0 10px 28px rgba(15,23,42,.06)}
.formula{background:#EFF6FF;color:#123B7A;border-color:#BFDBFE}
.warning{color:#92400E!important;background:#FFFBEB!important;border-color:#F59E0B!important}
.complete-profile h2,.profile-section h2{color:#123B7A}
.profile-badge{border-color:#BFDBFE;background:#EFF6FF;color:#1E40AF}
.knowledge-path{background:#EFF6FF}
.quick-facts div{background:#fff;border-color:#E2E8F0}.quick-facts b{color:#64748B}.quick-facts span{color:#0F172A}
.deep-card{background:#fff}.timeline-item b{color:#123B7A}
.path-row.big{background:#fff;border-color:#E2E8F0}.path-row.big span{background:#EFF6FF}
.sim-result,.tutor-answer{background:#EFF6FF;border-color:#BFDBFE}
.sim-controls input{accent-color:#2563EB}.stat-card b{color:#06B6D4}
.profile .portrait{box-shadow:0 14px 35px rgba(15,23,42,.10)}.course-nav a{color:#2563EB}
.universe-tools{background:#0B1F44;color:#D7E7FA;border-bottom-color:#315C99}.tools-inner a{color:#D7E7FA}.tools-inner button{background:#123B7A;color:#fff;border-color:#315C99}
.secondary{background:linear-gradient(135deg,#4F46E5,#2563EB);color:#fff}
.is-saved{background:#E0F2FE!important}
.plan-item{background:#fff;border-color:#E2E8F0}.plan-item button{background:#F1F5F9}
.tag-cloud button,.accessibility-panel button{background:#fff;border-color:#CBD5E1;color:#0F172A}
.article-cover{background:linear-gradient(135deg,#123B7A,#2563EB);color:#fff}
@media(max-width:800px){.links{background:#123B7A;border-bottom:1px solid #315C99}}

/* UNIVERSE Professional Blue — no white UI surfaces except text */
:root{--dark:#071525;--ink:#F8FAFC;--muted:#A9B8C8;--line:#24405D;--green:#19D3AE;--blue:#3B82F6;--cyan:#22D3EE;--purple:#7C5CFC;--card:#0D2035;--surface:#09192B;--surface-2:#102A43;--white:#F8FAFC}
html,body{background:#071525!important;color:#F8FAFC!important}
body{background-image:radial-gradient(circle at 15% 0%,rgba(37,99,235,.14),transparent 32%),radial-gradient(circle at 85% 10%,rgba(6,182,212,.10),transparent 28%)!important}
main,.container,.section,.page,.content,.panel,.card,.box,.feature,.person-card,.course-card,.tool-card,.sim-card,.article-card,.profile-card,.result,.item,.timeline-item,.quiz-card,.challenge-card,.research-card,.author-card,.stat-card,form,fieldset,table{background-color:#0D2035!important;color:#F8FAFC!important;border-color:#24405D!important}
input,textarea,select,button{background-color:#102A43!important;color:#F8FAFC!important;border-color:#315575!important}
input::placeholder,textarea::placeholder{color:#8EA3B8!important}
.card:hover,.person-card:hover,.course-card:hover,.feature:hover,.tool-card:hover,.sim-card:hover{background-color:#12304D!important}
nav,.navbar,.mobile-nav,.menu{background-color:#071525!important}
footer{background:#050F1C!important;color:#F8FAFC!important}
a{color:#55B7FF}
.hero{background:linear-gradient(135deg,#071525 0%,#0B2540 55%,#102E4C 100%)!important}
.badge,.tag,.pill{background:#12385B!important;color:#7DD3FC!important;border-color:#2C628E!important}
.btn,.button,button[type=submit]{background:linear-gradient(135deg,#2563EB,#06B6D4)!important;color:#fff!important;border-color:transparent!important}
hr{border-color:#24405D!important}
@media(max-width:800px){.links.open{display:flex!important;flex-direction:column;position:absolute;left:0;right:0;top:100%;z-index:1000;padding:12px 18px;max-height:75vh;overflow:auto;background:#071525!important}.nav{position:relative}}

.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:35px;padding:10px 0 25px}.footer-grid strong{display:block;color:#fff;font-family:"Space Grotesk";margin-bottom:10px}.footer-grid p{color:#9FB3C8;max-width:360px;margin:0}.footer-grid a{display:block;color:#B8CBE4;margin:5px 0;font-size:.9rem}.footer-grid a:hover{color:#55B7FF}.footer-bottom{border-top:1px solid #24405D;padding-top:18px;color:#8FA2B2;font-size:.82rem}@media(max-width:700px){.footer-grid{grid-template-columns:1fr;gap:20px}}
.content-article{max-width:850px;margin:auto}.content-article h2{margin-top:35px}.content-article p,.content-article li{color:#C5D2DF}.content-article .lead{font-size:1.12rem;color:#E4EDF6}.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.article-card{padding:24px;border:1px solid #24405D;border-radius:16px;background:#0D2035}.article-card h3{margin:8px 0}.article-card p{color:#A9B8C8}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-box{padding:22px;border:1px solid #24405D;border-radius:16px;background:#0D2035}.info-box h3{margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid .full{grid-column:1/-1}.contact-form label{display:block;font-weight:700;margin-bottom:6px}.contact-form input,.contact-form textarea{width:100%;padding:12px;border-radius:10px;border:1px solid #315575}.contact-form textarea{min-height:160px;resize:vertical}.legal h2{margin-top:32px}.notice{padding:16px;border:1px solid #315575;border-radius:12px;background:#102A43;color:#D7E7FA}@media(max-width:700px){.article-list,.info-grid,.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}}

/* UNIVERSE branded navigation, logo and engineering question bank */
.logo{display:flex!important;align-items:center;gap:9px!important}.logo-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#22D3EE,#2563EB);color:#fff;font-weight:900;font-size:1.1rem;box-shadow:0 0 18px rgba(37,99,235,.35)}.logo-name{color:#fff;font-weight:800;letter-spacing:.2px}.logo-name small{display:block;font-size:.55rem;letter-spacing:1.8px;color:#8EDCFF;text-transform:uppercase;line-height:1}.links{align-items:center}.menu-extra{display:none}.quiz-bank-head{display:flex;justify-content:space-between;gap:22px;align-items:end;margin:10px auto 26px;max-width:1100px}.quiz-bank-head h2{margin:0 0 6px}.quiz-bank-head p{margin:0;max-width:700px;color:var(--muted)}.quiz-controls{display:flex;gap:10px;align-items:center}.quiz-controls select{padding:12px;border:1px solid var(--line);border-radius:10px;background:#0D2035;color:#fff}.quiz-controls .btn{margin-top:0;border:0;cursor:pointer}.quiz-bank-head + .muted{max-width:900px;margin-left:auto;margin-right:auto}@media(min-width:801px){.menu{display:block!important}.links{display:flex}.menu-extra{display:none}.menu:hover + .links,.menu:focus + .links{ } .links.open{display:flex!important;flex-wrap:wrap}.links .menu-extra{position:absolute;right:4%;top:68px;background:#071525;border:1px solid #24405D;border-radius:14px;padding:14px;display:none;grid-template-columns:repeat(3,minmax(150px,1fr));gap:8px;max-width:700px;box-shadow:0 20px 50px rgba(0,0,0,.35)}.links.open .menu-extra{display:grid}.menu-extra a{padding:7px 9px;border-radius:8px}.menu-extra a:hover{background:#102A43}}@media(max-width:800px){.links{padding:16px}.links>a{display:block}.menu-extra{display:grid;gap:4px;padding-top:8px;border-top:1px solid #24405D;margin-top:8px}.quiz-bank-head{flex-direction:column;align-items:stretch}.quiz-controls{flex-direction:column;align-items:stretch}.quiz-controls .btn{width:100%}}

/* Creator photo integration */
.author-photo{object-fit:cover;object-position:center top;display:block;border:2px solid #315575;box-shadow:0 10px 28px rgba(0,0,0,.28);background:#102A43;}
@media(max-width:600px){.author-photo{width:80px;height:80px;}}

/* Dedicated menu page: compact, responsive navigation */
.menu-page-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1100px;margin:auto}.menu-page-card{border:1px solid #24405D;border-radius:16px;padding:22px;background:#0D2035}.menu-page-card h2{margin:4px 0 14px;color:#fff;font:700 1.25rem 'Space Grotesk'}.menu-page-card a{display:block;color:#B8CBE4;padding:8px 10px;border-radius:8px;margin:2px 0}.menu-page-card a:hover{background:#102A43;color:#fff}.menu-page-card .eyebrow{margin:0}.menu{display:inline-grid!important;place-items:center;text-decoration:none;cursor:pointer}.hero .btn{margin-right:8px}.hero .btn.secondary{margin-left:0}
@media(max-width:900px){.menu-page-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.menu-page-grid{grid-template-columns:1fr}.hero{padding:52px 0 45px}.hero h1{font-size:clamp(2.35rem,12vw,3.4rem)}.hero .btn{display:block;width:100%;margin:12px 0 0;text-align:center}.menu-page-card{padding:18px}}

/* Directory details fallback: content is present in the HTML, so desktop browsers do not depend on JavaScript timing. */
.directory-card .detail{margin-top:12px;padding-top:10px;border-top:1px solid rgba(255,255,255,.08)}
.directory-card details summary{cursor:pointer;font-weight:700;color:#9ed0ff;margin:8px 0}
.directory-card .view{display:inline-block;margin-top:10px}
.directory-page .grid,.directory-page .knowledge-grid{align-items:stretch}
.directory-page .card,.directory-page .knowledge-card{height:100%}
@media(max-width:700px){.directory-card .body{padding:16px}.directory-card .detail{font-size:.94rem}}

/* Desktop directory visibility fix: keep directory content visible at every viewport width. */
.directory-page #grid, .directory-page #academyGrid { display:grid !important; visibility:visible !important; opacity:1 !important; }
.directory-page .directory-card { display:block !important; visibility:visible !important; opacity:1 !important; }
.directory-page .directory-card[hidden] { display:none !important; }
.directory-page .directory-card .body, .directory-page .directory-card .detail, .directory-page .directory-card h3, .directory-page .directory-card p, .directory-page .directory-card details, .directory-page .directory-card .view { visibility:visible !important; }
@media(min-width:801px){.directory-page #grid{grid-template-columns:repeat(3,minmax(0,1fr)) !important; gap:18px !important;} .directory-page #academyGrid{grid-template-columns:repeat(3,minmax(0,1fr)) !important; gap:18px !important;}}