@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:ital,wght@0,700;0,800;1,700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #08152a;
  --navy-mid:   #0f2347;
  --navy-light: #1a3a6b;
  --gold:       #f0a500;
  --gold-lt:    #fbbf24;
  --white:      #ffffff;
  --off-white:  #f7f9ff;
  --text:       #0d1f3c;
  --muted:      #64748b;
  --border:     #e2e8f0;
  --r-sm: 8px;
  --r:    16px;
  --r-lg: 24px;
  --sh:    0 8px 32px rgba(8,21,42,.12);
  --sh-lg: 0 24px 64px rgba(8,21,42,.20);
  --sh-gold: 0 8px 32px rgba(240,165,0,.28);
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--off-white); color: var(--text); line-height: 1.6; overflow-x: hidden; }

/* ── NAV ── */
nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: 70px;
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,21,42,.65);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .3s;
}
nav.scrolled { background: rgba(8,21,42,.96); }

.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 2px solid rgba(240,165,0,.4); }
.logo-text { font-size: 1.1rem; font-weight: 700; color: #fff; letter-spacing: -.2px; }
.logo-text span { color: var(--gold); }

.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-links a { text-decoration: none; color: rgba(255,255,255,.68); font-size: .9rem; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-cta {
  background: var(--gold) !important;
  color: var(--navy) !important;
  padding: 9px 20px !important;
  border-radius: var(--r-sm) !important;
  font-weight: 700 !important;
  transition: all .2s !important;
}
.nav-cta:hover { background: var(--gold-lt) !important; transform: translateY(-1px); box-shadow: var(--sh-gold) !important; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 5% 80px;
  background: var(--navy);
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  animation: drift 10s ease-in-out infinite;
}
.orb-1 { width: 560px; height: 560px; background: radial-gradient(circle, #1a4a8a, transparent 70%); top: -140px; right: -120px; opacity: .4; animation-delay: 0s; }
.orb-2 { width: 440px; height: 440px; background: radial-gradient(circle, rgba(240,165,0,.25), transparent 70%); bottom: -100px; left: -80px; opacity: .5; animation-delay: -5s; }
.orb-3 { width: 320px; height: 320px; background: radial-gradient(circle, #0d3a70, transparent 70%); top: 45%; left: 18%; opacity: .3; animation-delay: -3s; }
@keyframes drift {
  0%,100% { transform: translate(0,0); }
  33%      { transform: translate(28px,-18px); }
  66%      { transform: translate(-18px,14px); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

/* floating cards */
.hf {
  position: absolute;
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.13);
  backdrop-filter: blur(14px);
  border-radius: 14px;
  padding: 14px 20px;
  text-align: center;
  pointer-events: none;
  min-width: 100px;
}
.hf .n { display: block; font-size: 1.55rem; font-weight: 800; color: var(--gold); line-height: 1; }
.hf .l { display: block; font-size: .68rem; color: rgba(255,255,255,.5); font-weight: 600; margin-top: 4px; letter-spacing: .8px; text-transform: uppercase; }
.hf.a1 { top: 22%; left: 5%;  animation: fa 7s ease-in-out infinite; }
.hf.a2 { top: 28%; right: 6%; animation: fb 9s ease-in-out infinite; }
.hf.a3 { bottom: 20%; left: 7%; animation: fc 8s ease-in-out infinite; }
.hf.a4 { bottom: 24%; right: 5%; animation: fa 11s ease-in-out infinite reverse; }
@keyframes fa { 0%,100%{transform:translateY(0) rotate(-3deg)} 50%{transform:translateY(-20px) rotate(-3deg)} }
@keyframes fb { 0%,100%{transform:translateY(0) rotate(2deg)}  50%{transform:translateY(-24px) rotate(2deg)} }
@keyframes fc { 0%,100%{transform:translateY(0) rotate(-1deg)} 50%{transform:translateY(-16px) rotate(-1deg)} }

.hero-content { position: relative; z-index: 10; max-width: 800px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240,165,0,.1);
  border: 1px solid rgba(240,165,0,.32);
  color: var(--gold-lt);
  padding: 7px 18px;
  border-radius: 100px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 6.5vw, 5.2rem);
  font-weight: 800;
  line-height: 1.08;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: -1.5px;
}
.hero h1 span { color: var(--gold); }

.hero-sub { font-size: 1.1rem; color: rgba(255,255,255,.62); max-width: 530px; margin: 0 auto 32px; line-height: 1.75; }

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hs { display: flex; flex-direction: column; align-items: center; }
.hs strong { font-size: 1.55rem; font-weight: 900; color: var(--gold); line-height: 1; }
.hs span { font-size: .7rem; color: rgba(255,255,255,.45); font-weight: 500; letter-spacing: .8px; text-transform: uppercase; margin-top: 3px; }
.hs-sep { width: 1px; height: 36px; background: rgba(255,255,255,.12); }

.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all .25s;
  letter-spacing: .2px;
}
.btn-primary { background: linear-gradient(135deg, var(--gold), #d09200); color: var(--navy); box-shadow: 0 4px 20px rgba(240,165,0,.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--gold-lt), var(--gold)); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(240,165,0,.4); }
.btn-outline { background: rgba(255,255,255,.07); color: #fff; border: 1.5px solid rgba(255,255,255,.24); backdrop-filter: blur(8px); }
.btn-outline:hover { background: rgba(255,255,255,.13); border-color: rgba(255,255,255,.5); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1rem; border-radius: 12px; }

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2.2s ease-in-out infinite;
}
.scroll-hint .chevron {
  width: 22px; height: 22px;
  border-right: 2px solid rgba(255,255,255,.28);
  border-bottom: 2px solid rgba(255,255,255,.28);
  transform: rotate(45deg);
}
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(10px)} }

/* ── TUTORS ── */
.tutors-section { background: var(--white); padding: 96px 5%; }

.tutors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 28px;
  max-width: 860px;
  margin: 0 auto;
}

.tutor-card {
  background: var(--navy);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-lg);
  transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s;
}
.tutor-card:hover { transform: translateY(-8px); box-shadow: 0 40px 80px rgba(8,21,42,.28); }

.tutor-accent { height: 3px; background: linear-gradient(90deg, var(--gold), var(--gold-lt), var(--gold)); }

.tutor-body { padding: 32px; }

.tutor-top { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }

.tutor-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), #b07200);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; font-weight: 800;
  color: var(--navy);
  font-family: 'Playfair Display', serif;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(240,165,0,.22), 0 4px 16px rgba(240,165,0,.2);
}

.tutor-name { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.tutor-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: rgba(240,165,0,.13);
  border: 1px solid rgba(240,165,0,.28);
  color: var(--gold-lt);
  font-size: .77rem; font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
}

.ru-badge {
  display: inline-flex;
  align-items: center;
  background: #cc0033;
  color: #fff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .8px;
  padding: 2px 7px;
  border-radius: 5px;
  vertical-align: middle;
  position: relative;
  top: -1px;
  font-family: 'Inter', sans-serif;
}

.nyu-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #57068c;
  color: #fff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .8px;
  padding: 2px 7px;
  border-radius: 5px;
  vertical-align: middle;
  position: relative;
  top: -1px;
  font-family: 'Inter', sans-serif;
}

.tutor-bio { font-size: .88rem; color: rgba(255,255,255,.57); line-height: 1.78; margin-bottom: 22px; }

.tutor-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tutor-tag {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.65);
  font-size: .74rem; font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
}

/* ── RESULTS ── */
.results-section {
  background: var(--navy);
  padding: 96px 5%;
  position: relative;
  overflow: hidden;
}

.results-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.results-big {
  font-family: 'Playfair Display', serif;
  font-size: clamp(5.5rem, 13vw, 10rem);
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -4px;
  margin: 20px 0 10px;
}
.results-caption { font-size: 1rem; font-weight: 600; color: rgba(255,255,255,.82); margin-bottom: 6px; }
.results-note { font-size: .8rem; color: rgba(255,255,255,.35); }

.steps { display: flex; flex-direction: column; gap: 4px; }
.step {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 18px;
  border-radius: 14px;
  transition: background .2s;
}
.step:hover { background: rgba(255,255,255,.04); }
.step-n {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(240,165,0,.1);
  border: 1px solid rgba(240,165,0,.28);
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 700; color: var(--gold);
  flex-shrink: 0;
}
.step h4 { font-size: .93rem; font-weight: 600; color: #fff; margin-bottom: 4px; }
.step p  { font-size: .83rem; color: rgba(255,255,255,.47); line-height: 1.6; }

/* ── CTA ── */
.cta-section {
  background: linear-gradient(135deg, #08152a 0%, #1a3a6b 100%);
  text-align: center;
  padding: 100px 5%;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(240,165,0,.07), transparent 60%);
  pointer-events: none;
}
.cta-section h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -.5px;
  position: relative;
}
.cta-section p { font-size: 1.05rem; color: rgba(255,255,255,.62); max-width: 480px; margin: 0 auto 36px; line-height: 1.75; position: relative; }

/* ── FOOTER ── */
footer { background: #040d1a; padding: 48px 5% 32px; }
.footer-inner { max-width: 1000px; margin: 0 auto; }
.footer-top {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.footer-brand img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; }
.footer-brand span { font-size: .98rem; font-weight: 700; color: #fff; }
.footer-brand em { color: var(--gold); font-style: normal; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,.4); text-decoration: none; font-size: .84rem; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-copy { font-size: .78rem; color: rgba(255,255,255,.2); text-align: center; }

/* ── SECTION SHARED ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .73rem; font-weight: 700; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.eyebrow::before { content: ''; width: 18px; height: 2px; background: var(--gold); border-radius: 2px; }
.eyebrow.center { justify-content: center; }
.eyebrow.center::before { display: none; }

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -.5px;
  margin-bottom: 14px;
}
.section-title .g { color: var(--gold); }
.section-title.light { color: #fff; }
.section-sub { font-size: 1rem; color: var(--muted); line-height: 1.75; max-width: 520px; }
.section-sub.light { color: rgba(255,255,255,.57); }
.sh { margin-bottom: 60px; }
.sh.center { text-align: center; }
.sh.center .section-sub { margin-left: auto; margin-right: auto; }

/* ── ABOUT ── */
.about-hero {
  background: var(--navy);
  padding: 140px 5% 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  color: #fff; margin: 14px 0;
  font-weight: 800; letter-spacing: -.5px;
}
.about-hero p { color: rgba(255,255,255,.62); max-width: 560px; margin: 0 auto; font-size: 1.05rem; line-height: 1.75; }

.about-story { background: var(--white); padding: 96px 5%; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; max-width: 1000px; margin: 0 auto; }

.about-text h2 { font-family: 'Playfair Display', serif; font-size: 2rem; color: var(--navy); margin-bottom: 20px; font-weight: 800; }
.about-text h2 .g { color: var(--gold); }
.about-text p { color: var(--muted); line-height: 1.82; margin-bottom: 16px; font-size: .96rem; }

.pillars { display: flex; flex-direction: column; gap: 14px; }
.pillar { display: flex; gap: 14px; background: var(--off-white); border: 1px solid var(--border); border-radius: 14px; padding: 18px; transition: transform .2s, box-shadow .2s; }
.pillar:hover { transform: translateX(4px); box-shadow: var(--sh); }
.pillar-icon { width: 40px; height: 40px; border-radius: 10px; background: linear-gradient(135deg, var(--navy), var(--navy-light)); display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.pillar h4 { font-size: .9rem; font-weight: 700; color: var(--navy); margin-bottom: 3px; }
.pillar p  { font-size: .82rem; color: var(--muted); line-height: 1.55; }

.about-values { background: var(--off-white); padding: 96px 5%; }
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; max-width: 1000px; margin: 0 auto; }
.value-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r); padding: 30px 24px; transition: transform .25s, box-shadow .25s; }
.value-card:hover { transform: translateY(-4px); box-shadow: var(--sh); }
.value-icon { width: 50px; height: 50px; background: var(--navy); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 16px; }
.value-card h3 { font-size: .98rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.value-card p  { font-size: .83rem; color: var(--muted); line-height: 1.65; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
.reveal.on { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hf { display: none; }
  .results-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .tutors-grid { grid-template-columns: 1fr; }
}