:root { --blue: var(--accent); --blue-soft: var(--accent-bright); --muted: var(--ink-2); --paper: var(--bg); --white: var(--bg-card); }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, Arial, sans-serif; }
a { color: inherit; }
.teacher-header { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 72px; padding: 0 clamp(20px, 4vw, 64px); border-bottom: 1px solid #24304a; background: var(--ink); color: var(--white); }
.teacher-brand { font-size: 18px; font-weight: 750; letter-spacing: -.05em; text-decoration: none; }
.teacher-header nav { display: flex; gap: 28px; color: #b7c0d0; font-size: 11px; }
.teacher-header nav a { text-decoration: none; }
.teacher-header__cta { justify-self: end; padding: 11px 14px; border: 1px solid #3e4b66; background: var(--blue); font-size: 10px; text-decoration: none; }
.teacher-hero { display: grid; grid-template-columns: minmax(300px, .58fr) minmax(0, 1.42fr); min-height: 620px; background: var(--bg-blue); color: var(--white); }
.teacher-hero figure { position: relative; align-self: center; width: min(100%, 460px); height: min(540px, calc(100vh - 150px)); min-height: 480px; margin: 40px 0 40px clamp(24px, 4vw, 64px); overflow: hidden; background: #dce3f2; border: 1px solid #24304a; }
.teacher-hero figure::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 58%, rgba(7,20,46,.78)); content: ""; }
.teacher-hero figure img { width: 100%; height: 100%; object-fit: cover; object-position: var(--portrait-position, center 18%); transform: scale(var(--portrait-scale, 1)); transform-origin: var(--portrait-origin, center top); filter: grayscale(.08); }
.teacher-hero figure .image-fallback { display: grid; width: 100%; height: 100%; place-items: center; background: var(--paper); color: var(--blue); font-size: clamp(64px, 10vw, 150px); font-weight: 700; letter-spacing: -.06em; }
.teacher-hero figcaption { position: absolute; z-index: 1; right: 28px; bottom: 28px; left: 28px; color: #eef3ff; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.teacher-hero__copy { display: flex; min-width: 0; padding: clamp(46px, 6vw, 92px); flex-direction: column; justify-content: center; }
.teacher-back-link { position: absolute; top: 108px; align-self: flex-start; color: #aeb8ca; font-size: 11px; text-decoration: none; }
.teacher-kicker { margin: 0 0 22px; color: var(--blue-soft); font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: .09em; }
.teacher-hero h1 { max-width: 900px; margin: 0; color: var(--white); font-size: clamp(44px, 5vw, 72px); font-weight: 600; letter-spacing: -.06em; line-height: .96; }
.teacher-role { margin: 20px 0 0; color: #eef3ff; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.teacher-intro { max-width: 830px; margin: 38px 0 0; color: #d7dfed; font-size: clamp(18px, 1.8vw, 27px); line-height: 1.48; }
.teacher-hero__experience { display: grid; max-width: 920px; margin: 30px 0 0; padding: 0; list-style: none; border-top: 1px solid #3e4b66; }
.teacher-hero__experience li { padding: 14px 0; border-bottom: 1px solid #3e4b66; color: #d7dfed; font-size: 14px; line-height: 1.45; }
.teacher-personal-link { display: inline-flex; width: fit-content; min-height: 44px; margin-top: 24px; padding: 0 16px; align-items: center; border: 1px solid #53617e; background: var(--white); color: var(--ink); font-size: 12px; font-weight: 650; text-decoration: none; }
.teacher-personal-link:hover { border-color: var(--white); background: var(--blue); color: var(--white); }
.teacher-profile { display: grid; grid-template-columns: 1fr; gap: 80px; padding: clamp(60px, 9vw, 130px) clamp(24px, 6vw, 96px); border-bottom: 1px solid var(--line); }
.teacher-profile--muted { background: #eef1f5; }
.teacher-profile header span, .teacher-program > span, .teacher-related header > span { color: var(--blue); font-size: 12px; letter-spacing: .04em; }
.teacher-profile h2, .teacher-related h2 { max-width: 700px; margin: 16px 0 0; font-size: clamp(40px, 4.2vw, 56px); font-weight: 600; letter-spacing: -.055em; line-height: 1.02; }
.teacher-profile__items { border-top: 1px solid var(--ink); }
.teacher-profile__items article { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.teacher-profile__items span { color: var(--blue); font-family: "Courier New", monospace; font-size: 12px; }
.teacher-profile__items p { max-width: 680px; margin: 0; font-size: clamp(20px, 2.2vw, 31px); letter-spacing: -.025em; line-height: 1.25; }
.teacher-program { display: grid; grid-template-columns: 1fr; gap: 48px; padding: clamp(60px, 9vw, 130px) clamp(24px, 6vw, 96px); background: var(--bg-blue); color: var(--white); }
.teacher-program h2 { max-width: 1200px; margin: 0; font-size: clamp(42px, 6vw, 86px); font-weight: 510; letter-spacing: -.06em; line-height: .97; }
.teacher-program p { max-width: 720px; margin: 38px 0 0; color: #aeb8ca; font-size: 17px; line-height: 1.6; }
.teacher-program a { display: inline-flex; gap: 80px; min-height: 48px; margin-top: 34px; padding: 15px 18px; align-items: center; background: var(--white); color: var(--ink); font-size: 12px; font-weight: 650; text-decoration: none; }
.teacher-program a span { color: var(--blue); }
.teacher-related { padding: clamp(60px, 9vw, 120px) clamp(24px, 6vw, 96px); }
.teacher-related header { display: grid; grid-template-columns: 1fr; gap: 32px; margin-bottom: 42px; }
.teacher-related h2 { margin-top: 0; }
.teacher-related > div { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.teacher-related a { position: relative; display: flex; min-width: 0; padding-bottom: 18px; overflow: hidden; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); text-decoration: none; }
.teacher-related img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; object-position: var(--portrait-position, center 18%); transform: scale(var(--portrait-scale, 1)); transform-origin: var(--portrait-origin, center top); }
.teacher-related .image-fallback { display: grid; width: 100%; aspect-ratio: 1; place-items: center; background: var(--paper); color: var(--blue); font-size: 42px; font-weight: 700; letter-spacing: -.05em; }
.teacher-related small { display: block; height: 2.7em; margin: 14px 14px 0; overflow: hidden; color: var(--blue); font-size: 12px; line-height: 1.35; }
.teacher-related strong { display: block; height: 2.16em; margin: 8px 14px 0; padding-right: 24px; overflow: hidden; font-size: 18px; font-weight: 600; letter-spacing: -.04em; line-height: 1.08; }
.teacher-related a > span { position: absolute; right: 14px; bottom: 18px; color: var(--blue); font-size: 14px; }
.teacher-not-found { min-height: 100vh; padding: 12vw; background: var(--ink); color: white; }
.teacher-not-found span { color: var(--blue-soft); }
.teacher-not-found h1 { max-width: 800px; font-size: 72px; letter-spacing: -.06em; }

/* Per-source framing keeps eyes and head size consistent without distorting photos. */
.portrait--mikhail-larkin { --portrait-position: center 8%; }
.portrait--melitina-feigina { --portrait-position: center 12%; }
.portrait--dmitry-tverdokhlebov { --portrait-position: center 12%; }
.portrait--pavel-rozov { --portrait-position: center 12%; }
.portrait--sergey-kobelev { --portrait-position: center 18%; }
.portrait--anna-nikitchenko { --portrait-position: center 10%; }
.portrait--mikhail-puzyrev { --portrait-position: center 12%; background: #d9d9d9; }
.portrait--sergey-lipchansky { --portrait-position: center 22%; }
.portrait--olga-bolina { --portrait-position: center 12%; }
.portrait--nikita-glukhov { --portrait-position: center 12%; }
.portrait--maxim { --portrait-position: center 14%; }
.portrait--nikita-bruskov { --portrait-position: center 15%; }
.portrait--konstantin-chuikov { --portrait-position: center 13%; }
.portrait--sergey-ris { --portrait-position: center 12%; }
.portrait--stanislav-kireev { --portrait-position: center 10%; }
.portrait--viktor-holostyakov { --portrait-position: 46% 14%; }
.portrait--nikolay-senin { --portrait-position: center 10%; }
.portrait--ilya-golubev { --portrait-position: center 16%; }
.portrait--pavel-mishchenko { --portrait-position: center 18%; background: #efe9dd; }
.portrait--roman-buzko { --portrait-position: center 12%; }
.portrait--bayram-annakov { --portrait-position: center 12%; }
.portrait--denis-malikhov { --portrait-position: center; background: #070b1c; }

@media (max-width: 900px) {
  .teacher-header { grid-template-columns: 1fr auto; }
  .teacher-header nav { display: none; }
  .teacher-hero { grid-template-columns: 1fr; }
  .teacher-hero figure { width: min(calc(100% - 96px), 460px); height: 480px; min-height: 0; margin: 0 auto 56px; order: 2; }
  .teacher-hero__copy { min-height: 660px; order: 1; }
  .teacher-back-link { position: static; margin-bottom: auto; }
  .teacher-profile, .teacher-program { grid-template-columns: 1fr; gap: 42px; }
  .teacher-related header { grid-template-columns: 1fr; gap: 18px; }
  .teacher-related > div { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .teacher-header { min-height: 62px; }
  .teacher-header__cta { font-size: 8px; }
  .teacher-hero { min-height: auto; }
  .teacher-hero__copy { min-height: 580px; }
  .teacher-hero h1 { font-size: 44px; overflow-wrap: anywhere; }
  .teacher-intro { font-size: 18px; }
  .teacher-hero figure { width: calc(100% - 40px); height: 360px; min-height: 0; margin-bottom: 40px; }
  .teacher-related header > * { min-width: 0; }
  .teacher-related h2 { font-size: 40px; overflow-wrap: anywhere; }
  .teacher-related > div { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .teacher-related small { margin-right: 8px; margin-left: 8px; font-size: 12px; }
  .teacher-related strong { font-size: 17px; }
}