/* ============================================================
   TOKENS — refined charcoal + premium network blue
============================================================ */
:root{
  --void: #0a0a0b;
  --panel: #17151a;
  --panel-2: #1d1a20;
  --wire: #2b2830;
  --accent: #4fa8e0;
  --accent-light: #82c4ec;
  --accent-rgb: 79,168,224;
  --text: #f1eee7;
  --fog: #a8a095;
  --faint: #6f6860;

  --font-display: 'Vazirmatn', sans-serif;

  --sp-1: 0.4rem;
  --sp-2: 0.8rem;
  --sp-3: 1.2rem;
  --sp-4: 1.8rem;
  --sp-5: 2.6rem;
  --sp-6: 4rem;
  --sp-7: 6rem;
  --sp-8: 9rem;

  --radius: 14px;
  --radius-sm: 8px;
  --container: 1180px;
  --ease: cubic-bezier(.22,.85,.32,1);
}

/* ============================================================
   RESET / BASE
============================================================ */
*,*::before,*::after{ box-sizing: border-box; }
*{ margin: 0; }
html{
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}
body{
  background: var(--void);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul,ol{ list-style: none; padding: 0; }
svg{ width: 1em; height: 1em; }
button{ font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

body{
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: center top;
}

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link{
  position: fixed;
  right: -999px;
  top: 0;
  background: var(--accent);
  color: var(--void);
  font-weight: 700;
  padding: .8rem 1.4rem;
  z-index: 999;
  border-radius: 0 0 0 8px;
}
.skip-link:focus{ right: 0; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-4);
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.reveal{
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

::selection{ background: var(--accent); color: var(--void); }
html{ scrollbar-color: var(--wire) var(--void); scrollbar-width: thin; }
::-webkit-scrollbar{ width: 10px; height: 10px; }
::-webkit-scrollbar-track{ background: var(--void); }
::-webkit-scrollbar-thumb{ background: var(--wire); border-radius: 999px; border: 2px solid var(--void); }
::-webkit-scrollbar-thumb:hover{ background: var(--accent); }

/* ============================================================
   TYPE
============================================================ */
h1,h2,h3{ font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }

.eyebrow{
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-bottom: var(--sp-2);
}
.eyebrow-num{
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .04em;
}
.eyebrow-label{
  font-size: .82rem;
  font-weight: 500;
  color: var(--fog);
  letter-spacing: .02em;
  position: relative;
  padding-inline-start: .9rem;
}
.eyebrow-label::before{
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 13px;
  background: var(--wire);
}

.section-title{
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  margin-bottom: var(--sp-2);
}
.section-lead{
  color: var(--fog);
  max-width: 56ch;
  font-size: 1.05rem;
  margin-bottom: var(--sp-5);
}

/* ============================================================
   BUTTONS
============================================================ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: .98rem;
  transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s;
  border: 1px solid transparent;
}
.btn svg{ width: 18px; height: 18px; }
.btn-primary{
  background: var(--accent);
  color: var(--void);
}
.btn-primary:hover{
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -14px rgba(0,0,0,.55);
}
.btn-ghost{
  border-color: var(--wire);
  color: var(--text);
  background: rgba(255,255,255,.02);
}
.btn-ghost:hover{
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ============================================================
   HEADER
============================================================ */
.site-header{
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(10,10,11,.74);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background .3s;
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.brand{
  display: flex;
  align-items: center;
  gap: .7rem;
  font-weight: 700;
}
.brand-mark{
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--panel-2);
  border: 1px solid var(--accent);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .02em;
}
.brand-name{ font-size: 1rem; }

.main-nav{
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}
.nav-link{
  font-size: .93rem;
  color: var(--fog);
  position: relative;
  padding: .3rem 0;
  transition: color .2s;
}
.nav-link:not(.nav-cta)::after{
  content: '';
  position: absolute;
  right: 0; left: 0; bottom: -2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s var(--ease);
}
.nav-link:not(.nav-cta):hover{ color: var(--text); }
.nav-link:not(.nav-cta):hover::after{ transform: scaleX(1); }

.nav-cta{
  color: var(--void);
  background: var(--accent);
  padding: .55rem 1.2rem;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 600;
}
.nav-cta:hover{ background: var(--accent-light); }

.nav-toggle{
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text);
}
.nav-toggle svg{ width: 22px; height: 22px; }
.nav-toggle .icon-close{ display: none; }
.nav-toggle[aria-expanded="true"] .icon-menu{ display: none; }
.nav-toggle[aria-expanded="true"] .icon-close{ display: block; }

/* ============================================================
   HERO
============================================================ */
.hero{
  position: relative;
  padding: calc(74px + var(--sp-7)) 0 var(--sp-6);
  min-height: 92vh;
  display: flex;
  align-items: center;
  --mx: 50%;
  --my: 50%;
}
.hero::before{
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(560px circle at var(--mx) var(--my), rgba(var(--accent-rgb),.06), transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s;
}
.hero.spotlight-on::before{ opacity: 1; }

.hero-inner{
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--sp-6);
  align-items: center;
  width: 100%;
}

.hero-name{
  font-size: clamp(3.2rem, 7vw, 5.6rem);
  font-weight: 300;
  letter-spacing: .003em;
  color: var(--text);
  margin-bottom: var(--sp-3);
}
.hero-role{
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--fog);
  margin-bottom: var(--sp-3);
  font-weight: 500;
}
.role-sep{ color: var(--accent); padding: 0 .3rem; }
.hero-bio{
  color: var(--fog);
  max-width: 46ch;
  margin-bottom: var(--sp-4);
  font-size: 1.02rem;
}
.hero-cta{
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}

.social-row{ display: flex; gap: .7rem; }
.social-link{
  width: 42px; height: 42px;
  border: 1px solid var(--wire);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--fog);
  transition: all .25s var(--ease);
}
.social-link svg{ width: 18px; height: 18px; }
.social-link:hover{
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
  background: rgba(var(--accent-rgb),.08);
}

/* --- topology medallion --- */
.hero-visual{ position: relative; }
.topo{ position: relative; width: 100%; max-width: 440px; margin: 0 auto; }
.topo-svg{ width: 100%; height: auto; overflow: visible; }

.wire{
  fill: none;
  stroke: var(--wire);
  stroke-width: 1.5;
  stroke-linecap: round;
  opacity: .9;
  transition: stroke .3s, opacity .3s;
}
.signal-path{
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 3 9;
  opacity: .85;
  filter: drop-shadow(0 0 4px rgba(var(--accent-rgb),.65));
  animation: flow 2.8s linear infinite;
}
.sp2{ animation-delay: -.9s; }
.sp3{ animation-delay: -1.8s; }
@keyframes flow{ to{ stroke-dashoffset: -120; } }

.via{ fill: var(--panel); stroke: var(--wire); stroke-width: 1.5; }

.node-glow{
  fill: rgba(var(--accent-rgb),.18);
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 3.2s ease-in-out infinite;
}
.node-2 .node-glow{ animation-delay: -1.1s; }
.node-3 .node-glow{ animation-delay: -2.1s; }
@keyframes breathe{
  0%,100%{ opacity: .45; transform: scale(1); }
  50%{ opacity: 1; transform: scale(1.18); }
}

.node-ring{ fill: var(--panel); stroke: var(--accent); stroke-width: 1.3; transition: stroke-width .25s; }
.node-dot{ fill: var(--accent); transform-box: fill-box; transform-origin: center; transition: transform .25s var(--ease); }
.node{ cursor: pointer; }
.node:hover .node-ring{ stroke-width: 2.1; }
.node:hover .node-dot{ transform: scale(1.3); }
.topo-svg:has(.node-1:hover) .w1,
.topo-svg:has(.node-2:hover) .w2,
.topo-svg:has(.node-3:hover) .w3{ stroke: var(--accent); opacity: 1; }

.center-glow{
  fill: rgba(var(--accent-rgb),.14);
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 4s ease-in-out infinite;
}
.center-outer{ fill: none; stroke: var(--accent); stroke-width: 1.3; }
.center-inner{ fill: var(--panel-2); stroke: var(--wire); stroke-width: 1; }
.center-text{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 25px;
  letter-spacing: .5px;
  fill: var(--accent);
  direction: ltr;
}

.node-label{
  position: absolute;
  transform: translate(-50%, 24px);
  font-size: .78rem;
  font-weight: 500;
  color: var(--fog);
  background: var(--void);
  padding: .2rem .65rem;
  border: 1px solid var(--wire);
  border-radius: 999px;
  white-space: nowrap;
}

.scroll-cue{
  position: absolute;
  bottom: var(--sp-3);
  left: 50%;
  transform: translateX(-50%);
  color: var(--faint);
  animation: bob 2.2s ease-in-out infinite;
}
.scroll-cue svg{ width: 22px; height: 22px; }
@keyframes bob{
  0%,100%{ transform: translate(-50%, 0); }
  50%{ transform: translate(-50%, 8px); }
}

/* ============================================================
   SECTIONS (shared)
============================================================ */
.section{ padding: var(--sp-7) 0; position: relative; overflow: hidden; }
.section > .wrap{ position: relative; z-index: 1; }
.section-alt{ background: linear-gradient(180deg, transparent, rgba(255,255,255,.015) 12%, rgba(255,255,255,.015) 88%, transparent); }

.section-ghost-num{
  position: absolute;
  top: -.06em;
  inset-inline-end: -.03em;
  font-size: clamp(9rem, 20vw, 17rem);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(var(--accent-rgb), .09);
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

/* ============================================================
   ABOUT
============================================================ */
.about-grid{
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--sp-6);
  align-items: start;
}
.about-photo{ position: relative; }
.about-photo img{
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--wire);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.about-photo::after{
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(var(--accent-rgb),.25);
  border-radius: var(--radius);
  pointer-events: none;
}
.about-body p{
  color: var(--fog);
  margin-bottom: var(--sp-3);
  max-width: 62ch;
  font-size: 1.02rem;
}

.facts-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}
.fact{
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--wire);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.015);
}
.fact svg{ width: 19px; height: 19px; color: var(--accent); flex-shrink: 0; }
.fact div{ display: flex; flex-direction: column; gap: .15rem; }
.fact-label{ font-size: .78rem; color: var(--faint); }
.fact-value{ font-size: .93rem; font-weight: 500; }

/* ============================================================
   FIELDWORK PHOTO
============================================================ */
.fieldwork-section{ padding: var(--sp-6) 0; }
.fieldwork-grid{
  display: grid;
  grid-template-columns: minmax(260px, 380px) 1fr;
  gap: var(--sp-6);
  align-items: center;
}
.fieldwork-media{ position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--wire); }
.fieldwork-media::after{
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(var(--accent-rgb),.25);
  border-radius: var(--radius);
  pointer-events: none;
}
.fieldwork-media img{
  width: 100%;
  height: auto;
  aspect-ratio: 912 / 1070;
  object-fit: cover;
  filter: saturate(.94) contrast(1.03);
}
.fieldwork-tag{
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .04em;
  margin-bottom: var(--sp-2);
}
.fieldwork-caption p{
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.85;
  color: var(--text);
  font-weight: 300;
  max-width: 34ch;
}

/* ============================================================
   SKILLS
============================================================ */
.skills-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sp-4);
  align-items: stretch;
}
.skills-secondary{
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.skill-card-featured{ border-color: rgba(var(--accent-rgb),.28); }
.featured-badge{
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(var(--accent-rgb),.1);
  border: 1px solid rgba(var(--accent-rgb),.3);
  padding: .28rem .75rem;
  border-radius: 999px;
  margin-bottom: var(--sp-3);
}
.skill-card{
  background: var(--panel);
  border: 1px solid var(--wire);
  border-radius: var(--radius);
  padding: var(--sp-4);
  transition: opacity .7s var(--ease), transform .2s ease, border-color .25s;
  box-shadow: 0 24px 50px -38px rgba(0,0,0,.7);
}
.skill-card:hover{ border-color: var(--accent); }
.skill-card-title{
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--sp-3);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--wire);
}
.skill-list{ display: flex; flex-direction: column; gap: var(--sp-2); }
.skill-item{
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: .8rem;
}
.skill-name{ font-size: .92rem; }
.skill-meter{ display: flex; gap: 4px; }
.skill-meter i{
  width: 16px; height: 6px;
  border-radius: 2px;
  background: var(--wire);
  display: block;
}
.skill-item.is-charged .skill-meter i{ transition: background .4s var(--ease); }
.skill-item.is-charged[data-level="1"] .skill-meter i:nth-child(-n+1),
.skill-item.is-charged[data-level="2"] .skill-meter i:nth-child(-n+2),
.skill-item.is-charged[data-level="3"] .skill-meter i:nth-child(-n+3),
.skill-item.is-charged[data-level="4"] .skill-meter i:nth-child(-n+4){
  background: var(--accent);
}
.skill-tag{
  font-size: .74rem;
  font-weight: 600;
  color: var(--fog);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--wire);
  padding: .2rem .65rem;
  border-radius: 999px;
  min-width: 4.4em;
  text-align: center;
}
.skill-card-note{
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px dashed var(--wire);
  color: var(--faint);
  font-size: .84rem;
  line-height: 1.6;
}

/* ============================================================
   EXPERIENCE / TIMELINE
============================================================ */
.timeline{
  position: relative;
  padding-inline-end: var(--sp-4);
  max-width: 720px;
}
.timeline::before{
  content: '';
  position: absolute;
  inset-inline-end: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--wire);
}
.timeline-item{
  position: relative;
  padding-inline-end: var(--sp-5);
  padding-bottom: var(--sp-5);
}
.timeline-item:last-child{ padding-bottom: 0; }
.timeline-marker{
  position: absolute;
  inset-inline-end: 0;
  top: 6px;
  width: 17px; height: 17px;
  border-radius: 50%;
  background: var(--panel);
  border: 2px solid var(--wire);
}
.timeline-marker-active{
  border-color: var(--accent);
  box-shadow: 0 0 0 5px rgba(var(--accent-rgb),.12);
}
.timeline-marker-active::after{
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline-date{
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent);
  display: block;
  margin-bottom: .4rem;
}
.timeline-role{ font-size: 1.15rem; margin-bottom: .2rem; }
.timeline-org{ color: var(--fog); font-size: .95rem; }

/* ============================================================
   EDUCATION
============================================================ */
.edu-card{
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  background: var(--panel);
  border: 1px solid var(--wire);
  border-radius: var(--radius);
  padding: var(--sp-4);
  max-width: 720px;
  transition: opacity .7s var(--ease), border-color .25s;
  box-shadow: 0 24px 50px -38px rgba(0,0,0,.7);
}
.edu-card:hover{ border-color: var(--accent); }
.edu-icon{
  width: 58px; height: 58px;
  border-radius: var(--radius-sm);
  background: rgba(var(--accent-rgb),.1);
  border: 1px solid rgba(var(--accent-rgb),.3);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.edu-icon svg{ width: 27px; height: 27px; }
.edu-degree{ font-size: 1.1rem; margin-bottom: .25rem; }
.edu-school{ color: var(--fog); margin-bottom: .4rem; }
.edu-date{ font-size: .82rem; font-weight: 600; color: var(--faint); display: inline-block; }

/* ============================================================
   COURSES
============================================================ */
.courses-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}
.course-card{
  padding: var(--sp-3);
  border: 1px solid var(--wire);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.015);
  transition: opacity .7s var(--ease), border-color .25s, transform .25s var(--ease);
}
.course-card:hover{ border-color: var(--accent); transform: translateY(-3px); }
.course-date{
  font-size: .74rem;
  font-weight: 600;
  color: var(--accent);
  display: block;
  margin-bottom: .5rem;
}
.course-title{ font-size: .95rem; font-weight: 600; line-height: 1.55; }

/* ============================================================
   CONTACT
============================================================ */
.contact-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
  max-width: 860px;
}
.contact-row{
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border: 1px solid var(--wire);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: opacity .7s var(--ease), border-color .25s, transform .25s var(--ease), background .25s;
}
.contact-row:last-child{ grid-column: 1 / -1; }
.contact-row:hover{
  border-color: var(--accent);
  transform: translateY(-3px);
  background: var(--panel-2);
}
.contact-icon{
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb),.1);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-icon svg{ width: 19px; height: 19px; }
.contact-text{ display: flex; flex-direction: column; gap: .2rem; overflow: hidden; }
.contact-label{ font-size: .78rem; color: var(--faint); }
.contact-value{ font-size: .95rem; font-weight: 500; text-align: left; }

/* ============================================================
   FOOTER
============================================================ */
.site-footer{ border-top: 1px solid var(--wire); padding: var(--sp-4) 0; }
.footer-inner{
  display: flex;
  justify-content: space-between;
  font-size: .85rem;
  color: var(--faint);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order: -1; }
  .topo{ max-width: 320px; margin-bottom: var(--sp-3); }
  .about-grid{ grid-template-columns: 1fr; }
  .about-photo{ max-width: 220px; }
  .fieldwork-grid{ grid-template-columns: 1fr; }
  .fieldwork-media{ max-width: 340px; margin: 0 auto; }
  .skills-grid{ grid-template-columns: 1fr; }
  .courses-grid{ grid-template-columns: repeat(2, 1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
  .contact-row:last-child{ grid-column: auto; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed;
    inset-inline: 0;
    top: 74px;
    background: rgba(10,10,11,.98);
    border-bottom: 1px solid var(--wire);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--sp-2) var(--sp-4) var(--sp-4);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all .25s var(--ease);
  }
  .main-nav.is-open{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link{ padding: .9rem 0; border-bottom: 1px solid rgba(255,255,255,.05); }
  .nav-cta{ margin-top: var(--sp-2); text-align: center; justify-content: center; }
  .nav-toggle{ display: flex; }

  .hero{ min-height: auto; padding-top: calc(74px + var(--sp-5)); }
  .facts-grid{ grid-template-columns: 1fr; }
  .courses-grid{ grid-template-columns: 1fr; }
  .section{ padding: var(--sp-6) 0; }
  .section-ghost-num{ font-size: 6rem; }
  .stats-grid{ grid-template-columns: repeat(3, 1fr); gap: var(--sp-1); }
}

@media (max-width: 480px){
  .hero-cta{ flex-direction: column; align-items: stretch; }
  .hero-cta .btn{ justify-content: center; }
}

/* ============================================================
   PREMIUM POLISH — grain, scroll progress, cursor ring
============================================================ */
.grain-overlay{
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.scroll-progress{
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: 2px;
  background: var(--accent);
  transform-origin: right center;
  transform: scaleX(0);
  z-index: 101;
  pointer-events: none;
}

.cursor-ring{
  position: fixed;
  top: 0; left: 0;
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  border: 1px solid rgba(var(--accent-rgb),.55);
  border-radius: 50%;
  pointer-events: none;
  z-index: 998;
  opacity: 0;
  transition: width .25s var(--ease), height .25s var(--ease), margin .25s var(--ease), background .25s, opacity .3s;
}
.cursor-ring.is-active{ opacity: 1; }
.cursor-ring.is-hover{ width: 56px; height: 56px; margin: -28px 0 0 -28px; background: rgba(var(--accent-rgb),.08); }

@media (max-width: 980px){
  .cursor-ring{ display: none; }
}

/* ============================================================
   STATS STRIP
============================================================ */
.stats-strip{ padding: var(--sp-4) 0 var(--sp-6); border-bottom: 1px solid var(--wire); }
.stats-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  text-align: center;
}
.stat-item{ display: flex; flex-direction: column; gap: .3rem; }
.stat-num{
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--accent);
  direction: ltr;
}
.stat-label{ color: var(--fog); font-size: .9rem; }

@media (max-width: 600px){
  .stats-grid{ gap: var(--sp-2); }
  .stat-label{ font-size: .78rem; }
}