/* ==========================================================================
   OVRLD — OVERLOAD | TRAINING LAB
   Marketing site mockup. Monochrome + silver. No build step.
   ========================================================================== */

:root {
  /* Palette (mirrors the app's Colors.ts dark theme) */
  --black: #0d0d0d;
  --bg: #111111;
  --bg-2: #161616;
  --charcoal: #1c1c1c;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --grey: #6b7280;
  --muted: #9ca3af;
  --white: #f5f5f5;

  /* Silver: the only accent. Metallic gradient reused across the site. */
  --silver-1: #f6f6f6;
  --silver-2: #cfcfcf;
  --silver-3: #8f8f8f;
  --silver-4: #e8e8e8;
  --silver-grad: linear-gradient(180deg, var(--silver-1) 0%, var(--silver-2) 42%, var(--silver-3) 56%, var(--silver-4) 78%, var(--silver-2) 100%);
  --silver-grad-h: linear-gradient(100deg, #ffffff 0%, #c4c4c4 30%, #8f8f8f 52%, #e8e8e8 74%, #b8b8b8 100%);

  --font-display: "Jost", "Century Gothic", "Futura", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --nav-h: 72px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Type helpers -------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.1;
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.9em;
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--silver-grad-h);
  display: inline-block;
}

.silver-text {
  background: var(--silver-grad-h);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* ---------- Layout -------------------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

section { position: relative; }

.section-pad { padding-block: clamp(72px, 12vw, 150px); }

.section-head { max-width: 640px; margin-bottom: clamp(36px, 6vw, 64px); }
.section-head h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  margin-top: 18px;
  letter-spacing: 0.08em;
}
.section-head p { color: var(--muted); margin-top: 18px; }

.hairline { height: 1px; background: var(--border); border: 0; margin: 0; }

/* ---------- Buttons ------------------------------------------------------- */

.btn {
  --pad-y: 15px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  padding: var(--pad-y) 30px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  position: relative;
  transition: color .4s var(--ease), border-color .4s var(--ease), background .4s var(--ease), transform .3s var(--ease);
}
.btn:hover { border-color: var(--silver-2); transform: translateY(-2px); }

.btn--silver {
  border: none;
  color: #141414;
  background: var(--silver-grad);
  background-size: 100% 200%;
  background-position: 0 0;
  transition: background-position .5s var(--ease), transform .3s var(--ease), box-shadow .4s var(--ease);
  box-shadow: 0 8px 30px rgba(0,0,0,.45);
  font-weight: 500;
}
.btn--silver:hover { background-position: 0 100%; transform: translateY(-2px); }

.btn__arrow { transition: transform .3s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- Watermark ----------------------------------------------------- */

.watermark {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.watermark img {
  position: absolute;
  width: min(140%, 1500px);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.04;
  filter: grayscale(1) brightness(2.4);
}

/* ---------- Navigation ---------------------------------------------------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  z-index: 100;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(13,13,13,.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__brand img { height: 26px; width: auto; filter: brightness(1.15); }
.nav__links { display: flex; align-items: center; gap: 36px; }
.nav__links a {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  padding-block: 6px;
  transition: color .3s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--silver-grad-h);
  transition: width .35s var(--ease);
}
.nav__links a:hover { color: var(--white); }
.nav__links a:hover::after { width: 100%; }

.nav__cta { border-color: var(--border-strong); }

.nav__end {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.lang {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-strong);
  overflow: hidden;
}
.lang__btn {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 0;
  padding: 8px 11px;
  cursor: pointer;
  transition: color .3s var(--ease), background .3s var(--ease);
}
.lang__btn:hover { color: var(--white); }
.lang__btn.is-active {
  color: #141414;
  background: var(--silver-grad);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle span {
  width: 26px; height: 1.5px;
  background: var(--white);
  transition: transform .35s var(--ease), opacity .3s var(--ease);
}
body.menu-open .nav__toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
body.menu-open .nav__toggle span:nth-child(2) { opacity: 0; }
body.menu-open .nav__toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------------------------------------------------------- */

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(120% 90% at 50% -10%, #1a1a1a 0%, var(--black) 55%),
    var(--black);
  padding-top: var(--nav-h);
  text-align: center;
  overflow: hidden;
}
.hero__inner { position: relative; z-index: 2; width: 100%; }
.hero__logo {
  width: min(78vw, 640px);
  margin: 0 auto 8px;
  filter: drop-shadow(0 20px 60px rgba(0,0,0,.6));
}
.hero__tag {
  font-family: var(--font-display);
  font-size: clamp(0.7rem, 2.2vw, 1rem);
  letter-spacing: 0.62em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 4px 0 34px;
  padding-left: 0.62em;
}
.hero__pitch {
  max-width: 720px;
  margin: 0 auto 40px;
  font-size: clamp(1.05rem, 2.5vw, 1.45rem);
  color: #cfcfcf;
  font-weight: 300;
  line-height: 1.55;
}
.hero__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  left: 50%; bottom: 30px;
  transform: translateX(-50%);
  z-index: 2;
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--grey);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 46px;
  background: linear-gradient(var(--silver-2), transparent);
  animation: scrollpulse 2.2s var(--ease) infinite;
}
@keyframes scrollpulse { 0%,100% { opacity:.3; transform:scaleY(.6);} 50%{opacity:1;transform:scaleY(1);} transform-origin: top; }

/* ---------- About --------------------------------------------------------- */

.about { background: var(--bg); }
.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.value {
  background: var(--charcoal);
  padding: 38px 30px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  transition: background .4s var(--ease), transform .4s var(--ease);
}
.value:hover { background: #202020; }
.value__num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  margin-bottom: auto;
}
.value h3 { font-size: 1.15rem; letter-spacing: 0.1em; margin: 26px 0 12px; }
.value p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* ---------- Coach --------------------------------------------------------- */

.coach { background: var(--bg-2); }
.coach__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.coach__photo {
  aspect-ratio: 3 / 4;
  background: #161616;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.coach__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  display: block;
}
.photo-slot {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--grey);
  text-align: center;
  padding: 20px;
}
.photo-slot svg { display: block; margin: 0 auto 12px; opacity: .5; }

.coach__bio h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.coach__role {
  font-family: var(--font-display);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 14px 0 24px;
}
.coach__copy p { color: #c9c9c9; margin: 0 0 1em; }
.coach__copy p:last-child { margin-bottom: 0; }

.quote {
  margin: 32px 0 8px;
  padding: 22px 0 6px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  letter-spacing: 0.04em;
  line-height: 1.45;
  text-transform: none;
  margin: 0;
}

.stats { display: flex; gap: 40px; margin: 34px 0; flex-wrap: wrap; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 300;
  line-height: 1;
}
.stat__label {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
  margin-top: 8px;
}

.creds { margin-top: 30px; border-top: 1px solid var(--border); }
.creds li {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.creds .year {
  font-family: var(--font-display);
  letter-spacing: 0.16em;
  color: var(--muted);
  min-width: 72px;
  font-size: 0.85rem;
}
.creds .cred { color: var(--white); font-size: 0.98rem; }

.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.tag {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  padding: 8px 16px;
  border-radius: 100px;
}

/* ---------- Location ------------------------------------------------------ */

.location { background: var(--bg); }
.loc__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.loc__map, .loc__info { background: var(--charcoal); }
.loc__map {
  min-height: 380px;
  position: relative;
  overflow: hidden;
}
.loc__map iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(1) contrast(1.05) brightness(0.78);
}
.loc__info { padding: clamp(30px, 4vw, 48px); }
.loc__info h3 { font-size: 1.25rem; margin-bottom: 6px; letter-spacing: 0.1em; }
.loc__info .addr { color: var(--muted); margin: 0 0 12px; }
.loc__phone {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.95rem;
}
.loc__phone a { color: var(--white); margin-left: 8px; }
.loc__phone a:hover { color: var(--silver-2); }
.hours { border-top: 1px solid var(--border); margin-bottom: 30px; }
.hours li {
  display: flex; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  gap: 16px;
}
.hours .day { color: var(--muted); font-family: var(--font-display); letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.8rem; }
.hours .time { color: var(--white); text-align: right; line-height: 1.45; }
.hours .closed { color: var(--grey); }
.loc__actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- Gallery ------------------------------------------------------- */

.gallery { background: var(--bg-2); }
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 220px;
  gap: 14px;
}
.gtile {
  background: repeating-linear-gradient(-45deg, #191919 0 12px, #1d1d1d 12px 24px);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.gtile.tall { grid-row: span 2; }
.gtile.wide { grid-column: span 2; }
.gtile span {
  font-family: var(--font-display);
  font-size: 0.66rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--grey);
}

/* ---------- Footer / Contact --------------------------------------------- */

.footer {
  background: var(--black);
  position: relative;
  padding-top: clamp(72px, 10vw, 120px);
  overflow: hidden;
}
.footer__cta { text-align: center; position: relative; z-index: 2; margin-bottom: 80px; }
.footer__cta h2 { font-size: clamp(2rem, 6vw, 4rem); letter-spacing: 0.06em; }
.footer__cta p { color: var(--muted); max-width: 520px; margin: 20px auto 34px; }

.socials { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; margin-bottom: 70px; position: relative; z-index: 2; }
.social {
  width: 52px; height: 52px;
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  color: var(--muted);
  transition: color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease), background .35s var(--ease);
}
.social:hover { color: #141414; background: var(--silver-grad); border-color: transparent; transform: translateY(-4px); }
.social svg { width: 20px; height: 20px; }

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-block: 40px 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative; z-index: 2;
}
.footer__logo img { width: 120px; opacity: .95; }
.footer__meta { color: var(--grey); font-size: 0.8rem; letter-spacing: 0.04em; }
.footer__meta a:hover { color: var(--white); }
.footer__legal { display: flex; gap: 22px; font-family: var(--font-display); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--grey); }
.footer__legal a:hover { color: var(--white); }

/* ---------- Reveal animation --------------------------------------------- */

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- Responsive ---------------------------------------------------- */

@media (max-width: 900px) {
  .values { grid-template-columns: repeat(2, 1fr); }
  .coach__grid { grid-template-columns: 1fr; }
  .coach__photo { max-width: 420px; }
  .loc__grid { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: rgba(13,13,13,.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0 24px;
    transform: translateY(-120%);
    transition: transform .45s var(--ease);
  }
  body.menu-open .nav__links { transform: translateY(0); }
  .nav__links a { padding: 16px var(--gutter); width: 100%; font-size: 0.95rem; }
  .nav__links .nav__cta { margin: 12px var(--gutter) 0; justify-content: center; }
  .nav__toggle { display: flex; }
}

html[lang="el"] h1,
html[lang="el"] h2,
html[lang="el"] h3,
html[lang="el"] .eyebrow,
html[lang="el"] .btn,
html[lang="el"] .nav__links a,
html[lang="el"] .value h3,
html[lang="el"] .stat__label,
html[lang="el"] .tag,
html[lang="el"] .day,
html[lang="el"] .photo-slot,
html[lang="el"] .footer__legal {
  letter-spacing: 0.06em;
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .values { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: 1fr; grid-auto-rows: 200px; }
  .gtile.wide { grid-column: span 1; }
  .stats { gap: 26px; }
  .footer__bottom { flex-direction: column; text-align: center; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}