/* ============================================================
   Petros Exarchakos, MD: Internal Medicine & Oncology
   Design tokens: Mediterranean clinical.
   Ink (botanical near-black) · Paper (cool chalk) · Sea (Aegean teal)
   Olive (muted moss) · Sun (used sparingly, warm ochre)
   ============================================================ */

:root {
  --ink: #14211d;
  --ink-soft: #3c4a43;
  --paper: #f3f4ef;
  --paper-alt: #ebede4;
  --paper-deep: #e2e4d9;
  --white: #ffffff;
  --sea: #2f6f62;
  --sea-dark: #1f4e44;
  --sea-tint: #e4ede9;
  --olive: #8a9a5b;
  --sun: #d98e3f;
  --line: #d6d8cc;
  --line-strong: #b9bcae;
  --error: #b5453c;

  --font-display: "Alegreya", "Times New Roman", serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --container: 1240px;
  --gutter: clamp(24px, 5vw, 64px);
  --section-pad: clamp(64px, 10vw, 128px);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 200ms;
  --dur-med: 500ms;
  --dur-slow: 900ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
html { overflow-x: clip; }
body { overflow-x: hidden; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure { margin: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }

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

/* ---------- Language toggle mechanism ---------- */
html[data-lang="en"] [lang="el"] { display: none !important; }
html[data-lang="el"] [lang="en"] { display: none !important; }

/* ---------- Anchor offset (sticky nav) ---------- */
section[id], main[id] { scroll-margin-top: 88px; }

/* ---------- Layout helpers ---------- */
.wrap {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section-pad); }
.section--alt { background: var(--paper-alt); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sea-dark);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--sun);
}
.section-head {
  max-width: 640px;
  margin-bottom: clamp(40px, 6vw, 72px);
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
  line-height: 1.15;
  margin-top: 0.6em;
  color: var(--ink);
}

/* ---------- Scroll motion ---------- */
/* GSAP/ScrollTrigger (js/main.js) owns all reveal/scrub/pin animation. Nothing here
   hides content by default: if the vendor scripts fail to load, or the visitor prefers
   reduced motion, every element below renders in its final, fully-visible state. */

/* ---------- Pulse divider (signature element) ---------- */
.pulse-divider {
  width: 100%;
  height: 48px;
  display: block;
  overflow: visible;
}
.pulse-divider path {
  fill: none;
  stroke: var(--sea);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.pulse-divider circle { fill: var(--sun); opacity: 1; }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(243, 244, 239, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px -18px rgba(20, 33, 29, 0.35);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
}
.nav__mark {
  display: flex;
  align-items: baseline;
  gap: 0.5em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}
.nav__mark span.tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--sea);
  text-transform: uppercase;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
  font-size: 0.92rem;
}
.nav__links a {
  position: relative;
  padding-block: 4px;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--sea);
  transition: right var(--dur-fast) var(--ease);
}
.nav__links a:hover::after { right: 0; }
.nav__right { display: flex; align-items: center; gap: 14px; }

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 3px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.lang-toggle button {
  padding: 5px 11px;
  border-radius: 999px;
  color: var(--ink-soft);
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease, transform var(--dur-fast) var(--ease);
}
.lang-toggle button:active { transform: scale(0.92); }
.lang-toggle button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) ease;
}
.btn--primary {
  background: var(--sea);
  color: var(--white);
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.btn--primary:hover { background: var(--sea-dark); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0) scale(0.98); }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__burger span { width: 20px; height: 1.5px; background: var(--ink); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding-block: clamp(56px, 9vw, 108px) clamp(40px, 6vw, 64px);
  position: relative;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
.hero__eyebrow {
  position: relative;
  margin-bottom: 22px;
  padding: 6px 14px;
}
.hero__eyebrow::before {
  width: 10px; height: 10px;
  top: -1px; left: -1px;
  position: absolute;
  background: none;
  border-top: 1.5px solid var(--sun);
  border-left: 1.5px solid var(--sun);
}
.hero__eyebrow::after {
  content: "";
  position: absolute;
  bottom: -1px; right: -1px;
  width: 10px; height: 10px;
  border-bottom: 1.5px solid var(--sun);
  border-right: 1.5px solid var(--sun);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.hero h1 em {
  font-style: italic;
  color: var(--sea-dark);
}
.hero__sub {
  margin-top: 24px;
  max-width: 46ch;
  font-size: 1.08rem;
  color: var(--ink-soft);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.hero__trust li {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero__trust li::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--olive);
  flex: none;
}

.hero__art { position: relative; }
.hero__blob {
  position: absolute;
  inset: -6% -10% -6% 6%;
  background: var(--sea-tint);
  border-radius: 42% 58% 65% 35% / 45% 45% 55% 55%;
  z-index: 0;
}
.hero__frame {
  position: relative;
  z-index: 1;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--ink);
}
.hero__chip {
  position: absolute;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--white);
  padding: 7px 14px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 8px 20px -8px rgba(20, 33, 29, 0.4);
}
.hero__chip--top {
  top: 10%;
  left: -8%;
  background: var(--sea);
  transform: rotate(-6deg);
}
.hero__chip--bottom {
  bottom: 14%;
  right: -8%;
  background: var(--sun);
  transform: rotate(5deg);
}
.hero__frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.02);
}
.hero__frame::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,33,29,0) 55%, rgba(20,33,29,0.55) 100%);
}
.hero__trace {
  position: absolute;
  left: -18px; right: -18px; bottom: -1px;
  height: 90px;
  z-index: 2;
  pointer-events: none;
}
.hero__trace path {
  fill: none;
  stroke: var(--sun);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.2s var(--ease) 0.6s forwards;
}
.hero__trace circle {
  fill: var(--sun);
  opacity: 0;
  animation: blip 600ms ease 2.1s forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes blip { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .hero__trace path { animation: none; stroke-dashoffset: 0; }
  .hero__trace circle { animation: none; opacity: 1; }
}
.hero__caption {
  position: absolute;
  left: 20px; bottom: 18px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  z-index: 3;
}

/* Hero load-in: handled by a GSAP timeline (js/main.js) via gsap.from(), so elements
   stay at their natural, fully-visible state here if the vendor scripts don't load. */
.hero h1 .word { overflow: hidden; display: inline-block; }
.hero h1 .word-inner { display: inline-block; }

/* ============================================================
   About
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
.about__frame {
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--paper-deep);
}
.monitoring-strip {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12%;
}
.monitoring-strip svg { width: 100%; height: 100%; }
.monitoring-strip line {
  stroke: var(--line-strong);
  stroke-width: 1.5;
  stroke-linecap: round;
}
.monitoring-strip__pulse {
  fill: none;
  stroke: var(--sea);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.monitoring-strip__blip { fill: var(--sun); }
.about p + p { margin-top: 1.1em; }
.about__body { font-size: 1.03rem; color: var(--ink-soft); max-width: 58ch; }
.credentials {
  margin-top: 40px;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.credentials li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink);
  line-height: 1.5;
}
.credentials li::before {
  content: "";
  width: 8px; height: 8px;
  margin-top: 5px;
  border: 1.4px solid var(--sea);
  border-radius: 50%;
}

/* ============================================================
   Care areas
   ============================================================ */
.cards {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 32px 28px;
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease;
  grid-column: span 6;
}
.card:hover { background: var(--white); }
.card--featured {
  grid-column: span 6;
  grid-row: span 2;
  padding: 44px 40px;
  background: var(--sea-tint);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.card--featured:hover { background: var(--sea-tint); }
.card--featured h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
.card:nth-of-type(n+2) { grid-column: span 3; }
/* Spotlight border: JS (pointermove) sets --mx/--my; touch/no-hover devices never populate them. */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: radial-gradient(180px circle at var(--mx, 50%) var(--my, 50%), var(--sun), transparent 65%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur-fast) ease;
  pointer-events: none;
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sea);
  background: var(--sea-tint);
  border-radius: 12px;
  margin-bottom: 20px;
}
.card--featured .card__icon { background: var(--white); }
.card__icon svg { width: 24px; height: 24px; }
.card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.18rem;
  color: var(--ink);
}
.card p {
  margin-top: 10px;
  font-size: 0.94rem;
  color: var(--ink-soft);
}

/* ============================================================
   Approach (numbered, real sequence)
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.approach__spine {
  width: 100%;
  height: 24px;
  display: block;
  overflow: visible;
  margin-bottom: 28px;
}
.approach__spine path {
  fill: none;
  stroke: var(--sea);
  stroke-width: 1.4;
  stroke-linecap: round;
}
.step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--sun);
  letter-spacing: 0.06em;
}
.step h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin-top: 14px;
  color: var(--ink);
}
.step p {
  margin-top: 10px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.step {
  padding-top: 20px;
  border-top: 1.5px solid var(--line-strong);
  position: relative;
}
.step:nth-child(4) .step__num { color: var(--sea); }
.step:nth-child(4)::before {
  content: "";
  position: absolute;
  top: -1.5px; left: 0; right: 0; height: 1.5px;
  background: var(--sea);
}

/* ============================================================
   Contact
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 72px);
}
.contact__info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  font-size: 0.98rem;
  margin-top: 28px;
}
.contact__info dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sea-dark);
  padding-top: 3px;
}
.contact__info dd { margin: 0; color: var(--ink); }

.form { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.field input, .field textarea {
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 12px 14px;
  font-size: 0.96rem;
  transition: border-color var(--dur-fast) ease;
}
.field input:focus, .field textarea:focus { border-color: var(--sea); }
.field textarea { resize: vertical; min-height: 120px; }
.field.is-invalid input, .field.is-invalid textarea { border-color: var(--error); }
.field.is-invalid label { color: var(--error); }
.form__note {
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.form__status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sea-dark);
  min-height: 1.2em;
}
.form:has(.field.is-invalid) .form__status {
  color: var(--error);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding-block: 56px 32px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
}
.footer__mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}
.footer__tag {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #b9c2bc;
  max-width: 34ch;
}
.footer h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8fa39a;
  margin-bottom: 14px;
}
.footer ul { display: grid; gap: 10px; font-size: 0.92rem; }
.footer a:hover { color: var(--sun); }
.footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #8fa39a;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .nav__links, .nav__right .btn--primary { display: none; }
  .nav__burger { display: flex; }
  .nav__inner { gap: 12px; }
  .nav__mark { font-size: 1rem; gap: 0.35em; }
  .nav__mark .tag { display: none; }
  .nav__right { gap: 8px; }
  .lang-toggle { font-size: 0.68rem; }
  .lang-toggle button { padding: 4px 9px; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; }
  .hero__chip--top { left: 2%; }
  .hero__chip--bottom { right: 2%; }
  .about__grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .card, .card--featured, .card:nth-of-type(n+2) { grid-column: span 1; grid-row: auto; }
  .card--featured { grid-column: span 2; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .approach__spine { display: none; }
  .contact__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .cards { grid-template-columns: 1fr; }
  .card--featured { grid-column: span 1; }
  .steps { grid-template-columns: 1fr; }
  .hero__trust { gap: 8px 20px; }
  .footer__grid { grid-template-columns: 1fr; }
}

/* Mobile nav panel */
.nav__panel {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--paper);
  padding: 24px var(--gutter);
}
.nav__panel.is-open { display: block; }
.nav__panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav__panel ul {
  margin-top: 48px;
  display: grid;
  gap: 26px;
  font-family: var(--font-display);
  font-size: 1.6rem;
}
.nav__panel .btn { margin-top: 40px; width: 100%; justify-content: center; }