/* =========================================================
   M&M ΤΕΧΝΙΚΑ ΕΡΓΑ — Κεντρικό stylesheet
   👉 Τα χρώματα του brand είναι στις μεταβλητές παρακάτω.
      Το χρυσό πάρθηκε από το λογότυπο: μπρονζέ στις άκρες,
      ανοιχτό «σαμπανί» στο κέντρο.
   ========================================================= */
:root {
  --bg: #0b0b0c;
  --bg-2: #121214;
  --bg-3: #1a1a1d;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f2efe8;
  --muted: #9a968d;
  --gold: #c8b378;
  --gold-rgb: 200, 179, 120; /* το ίδιο με το --gold, για διάφανες αποχρώσεις: rgba(var(--gold-rgb), .5) */
  --gold-2: #efe7a3;
  --gold-grad: linear-gradient(120deg, #8a6a3f 0%, #b59e68 22%, #efe8a4 48%, #d6ca8c 60%, #a88e5a 82%, #8a683a 100%);
  --font: "Commissioner", system-ui, sans-serif;
  --serif: "Noto Serif Display", Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 4px;
  --pad: clamp(1.25rem, 4vw, 4rem);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.loading { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--gold); color: #000; }

/* Λεπτό «grain» για premium αίσθηση */
body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 9990; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { width: min(1320px, 100%); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: clamp(5rem, 12vw, 10rem) 0; position: relative; }
.eyebrow { font-size: .75rem; letter-spacing: .3em; text-transform: uppercase; color: var(--gold); font-weight: 500; margin-bottom: 1.5rem; }
.h2 { font-size: clamp(2.2rem, 5vw, 4.2rem); line-height: 1.05; font-weight: 300; letter-spacing: -.02em; margin-bottom: 2rem; }
.h2--xl { font-size: clamp(3rem, 8vw, 7rem); }
.h2 i, .hero__title i { font-family: var(--serif); font-weight: 300; }
.gold { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.section__head { margin-bottom: 4rem; max-width: 760px; }
.section__head--row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 10000; background: var(--bg);
  display: grid; place-items: center; align-content: center; gap: 1.5rem;
  transition: clip-path 1.1s var(--ease);
  clip-path: inset(0 0 0 0);
}
.preloader.done { clip-path: inset(0 0 100% 0); }
.preloader__logo { width: clamp(140px, 26vw, 210px); height: auto; animation: logoIn 1.2s var(--ease) both; }
@keyframes logoIn { from { opacity: 0; transform: translateY(12px) scale(.96); } to { opacity: 1; transform: none; } }
.preloader__bar { width: 220px; height: 1px; background: var(--line); overflow: hidden; }
.preloader__bar span { display: block; height: 100%; width: 0; background: var(--gold-grad); transition: width .2s linear; }
.preloader__pct { font-size: .75rem; letter-spacing: .3em; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- Cursor ---------- */
.cursor, .cursor-dot { position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999; border-radius: 50%; transform: translate(-50%, -50%); }
.cursor { width: 38px; height: 38px; border: 1px solid rgba(var(--gold-rgb), .6); transition: width .35s var(--ease), height .35s var(--ease), background .35s; }
.cursor-dot { width: 5px; height: 5px; background: var(--gold); }
.cursor.hover { width: 72px; height: 72px; background: rgba(var(--gold-rgb), .1); }
.cursor.view::after { content: "VIEW"; position: absolute; inset: 0; display: grid; place-items: center; font-size: .6rem; letter-spacing: .2em; color: var(--gold); }
@media (hover: none) { .cursor, .cursor-dot { display: none; } }

.scroll-progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; background: var(--gold-grad); z-index: 1001; }

/* ---------- Header ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem var(--pad);
  transition: padding .5s var(--ease), background .5s, backdrop-filter .5s, transform .5s var(--ease);
}
.header.scrolled { padding: .9rem var(--pad); background: rgba(11, 11, 12, .72); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.header.hide { transform: translateY(-100%); }
.brand { display: flex; align-items: center; gap: .75rem; }
.brand img { width: auto; transition: height .5s var(--ease); }
.brand__emblem { height: 48px; }
.brand__word { height: 20px; }
.header.scrolled .brand__emblem { height: 40px; }
.header.scrolled .brand__word { height: 17px; }
.brand--footer .brand__emblem { height: 40px; }
.brand--footer .brand__word { height: 17px; }
.brand__text { font-size: .62rem; letter-spacing: .35em; color: var(--muted); border-left: 1px solid var(--line); padding-left: .9rem; }
.nav { display: flex; gap: 2.2rem; align-items: center; font-size: .85rem; }
.nav a { position: relative; display: inline-block; }
.nav a:not(.nav__cta)::after { content: ""; position: absolute; left: 0; bottom: -4px; height: 1px; width: 100%; background: var(--gold); transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease); }
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { border: 1px solid var(--gold); padding: .6rem 1.3rem; border-radius: 100px; color: var(--gold); transition: background .3s, color .3s; }
.nav__cta:hover { background: var(--gold); color: #000; }
.burger { display: none; width: 34px; height: 20px; position: relative; z-index: 1002; }
.burger span { position: absolute; left: 0; width: 100%; height: 1px; background: var(--text); transition: transform .4s var(--ease), top .4s var(--ease); }
.burger span:first-child { top: 4px; } .burger span:last-child { top: 15px; }
.burger.open span:first-child { top: 10px; transform: rotate(45deg); }
.burger.open span:last-child { top: 10px; transform: rotate(-45deg); }

@media (max-width: 960px) {
  .burger { display: block; }
  .brand__text { display: none; }
  .nav {
    position: fixed; inset: 0; background: var(--bg); flex-direction: column; justify-content: center; gap: 2rem;
    font-size: 1.8rem; clip-path: circle(0 at calc(100% - 3rem) 2.5rem); transition: clip-path .8s var(--ease);
  }
  .nav.open { clip-path: circle(150% at calc(100% - 3rem) 2.5rem); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .8rem; padding: 1.05rem 1.9rem; border-radius: 100px;
  font-size: .85rem; font-weight: 500; letter-spacing: .04em; position: relative; overflow: hidden; isolation: isolate;
  transition: transform .3s var(--ease);
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; transition: transform .4s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--gold { background: var(--gold-grad); color: #0b0b0c; background-size: 200% 100%; transition: background-position .8s var(--ease); }
.btn--gold:hover { background-position: 100% 0; }
.btn--ghost { border: 1px solid rgba(255, 255, 255, .25); }
.btn--ghost::before { content: ""; position: absolute; inset: 0; background: var(--text); transform: translateY(101%); transition: transform .5s var(--ease); z-index: -1; }
.btn--ghost:hover { color: #000; }
.btn--ghost:hover::before { transform: translateY(0); }
.btn--full { width: 100%; justify-content: center; }

/* ---------- Hero ---------- */
.hero { min-height: 100vh; min-height: 100svh; position: relative; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; overflow: hidden; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero__content { position: relative; z-index: 2; padding: 8rem var(--pad) 6rem; grid-column: 1; grid-row: 1; }
.hero__title { font-size: clamp(3rem, 7.5vw, 7.2rem); line-height: .98; font-weight: 300; letter-spacing: -.035em; margin-bottom: 2rem; }
.hero__title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero__title .line > span { display: inline-block; transform: translateY(110%); transition: transform 1.3s var(--ease); }
.loaded .hero__title .line > span { transform: translateY(0); }
.loaded .hero__title .line:nth-child(2) > span { transition-delay: .1s; }
.loaded .hero__title .line:nth-child(3) > span { transition-delay: .2s; }
.loaded .hero__title .line:nth-child(4) > span { transition-delay: .3s; }
.hero__lead { max-width: 520px; color: var(--muted); font-size: 1.05rem; margin-bottom: 2.5rem; }
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__media { grid-column: 2; grid-row: 1; position: relative; height: 100%; min-height: 100vh; z-index: 1; overflow: hidden; clip-path: inset(0 0 0 100%); transition: clip-path 1.6s var(--ease) .2s; }
.loaded .hero__media { clip-path: inset(0 0 0 0); }
.hero__media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.15); transition: transform 2.4s var(--ease) .2s; }
.loaded .hero__media img { transform: scale(1.02); }
.hero__media::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, var(--bg) 0%, transparent 35%), linear-gradient(0deg, rgba(11,11,12,.6), transparent 40%); }
.hero__media-tag { position: absolute; z-index: 2; bottom: 2rem; right: 2rem; font-size: .68rem; letter-spacing: .25em; display: flex; align-items: center; gap: .6rem; background: rgba(0,0,0,.45); backdrop-filter: blur(10px); padding: .6rem 1rem; border: 1px solid var(--line); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 0 var(--gold); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(var(--gold-rgb), 0); } 100% { box-shadow: 0 0 0 0 rgba(var(--gold-rgb), 0); } }
.hero__coords { position: absolute; left: var(--pad); bottom: 2rem; z-index: 2; font-size: .68rem; letter-spacing: .25em; color: var(--muted); font-variant-numeric: tabular-nums; }
.hero__scroll { position: absolute; left: 50%; bottom: 1.5rem; z-index: 3; display: flex; flex-direction: column; align-items: center; gap: .6rem; font-size: .6rem; letter-spacing: .35em; color: var(--muted); }
.hero__scroll i { width: 1px; height: 46px; background: var(--line); position: relative; overflow: hidden; }
.hero__scroll i::after { content: ""; position: absolute; top: -50%; left: 0; width: 100%; height: 50%; background: var(--gold); animation: drip 2s var(--ease) infinite; }
@keyframes drip { to { top: 100%; } }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .hero__media { grid-column: 1; position: absolute; inset: 0; min-height: 0; }
  .hero__media::before { background: linear-gradient(0deg, var(--bg) 10%, rgba(11,11,12,.55) 60%, rgba(11,11,12,.3)); }
  .hero__content { padding-top: 10rem; }
  .hero__lead { color: #cfcac0; }
  .hero__scroll, .hero__media-tag { display: none; }
}

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--line); padding: 1.6rem 0; overflow: hidden; background: var(--bg-2); }
.marquee__track { display: flex; gap: 2.5rem; width: max-content; animation: marquee 40s linear infinite; font-size: clamp(1.1rem, 2.4vw, 1.8rem); font-weight: 200; letter-spacing: .08em; white-space: nowrap; }
.marquee__track b { color: var(--gold); font-weight: 400; font-size: .6em; align-self: center; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- About & stats ---------- */
.about__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(3rem, 6vw, 7rem); align-items: center; }
.about__text p:not(.eyebrow) { color: var(--muted); margin-bottom: 1.2rem; max-width: 560px; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat { background: var(--bg); padding: 2.5rem 2rem; transition: background .4s; transform-style: preserve-3d; }
.stat:hover { background: var(--bg-2); }
.stat__num { font-size: clamp(2.6rem, 5vw, 4rem); font-weight: 200; line-height: 1; margin-bottom: .8rem; letter-spacing: -.03em; }
.stat__num span { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.stat__label { font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 860px) { .about__grid { grid-template-columns: 1fr; } }

/* ---------- Services ---------- */
.services { background: var(--bg-2); }
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service {
  position: relative; padding: 2.6rem 2.2rem; border: 1px solid var(--line); background: var(--bg); overflow: hidden;
  transition: border-color .4s, transform .2s; transform-style: preserve-3d;
}
.service::before { content: ""; position: absolute; inset: 0; background: radial-gradient(500px circle at var(--mx, 50%) var(--my, 50%), rgba(var(--gold-rgb), .13), transparent 40%); opacity: 0; transition: opacity .4s; }
.service:hover { border-color: rgba(var(--gold-rgb), .4); }
.service:hover::before { opacity: 1; }
.service__icon svg { width: 46px; height: 46px; fill: none; stroke: var(--gold); stroke-width: 1.2; margin-bottom: 2rem; }
.service__no { position: absolute; top: 2rem; right: 2rem; font-size: .75rem; color: var(--muted); letter-spacing: .2em; }
.service h3 { font-size: 1.35rem; font-weight: 500; margin-bottom: .8rem; letter-spacing: -.01em; }
.service p { color: var(--muted); font-size: .95rem; }
@media (max-width: 1000px) { .services__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .services__grid { grid-template-columns: 1fr; } }

/* ---------- Projects ---------- */
.filters { display: flex; gap: .4rem; flex-wrap: wrap; border: 1px solid var(--line); padding: .35rem; border-radius: 100px; }
.filters button { padding: .55rem 1.2rem; border-radius: 100px; font-size: .8rem; color: var(--muted); transition: background .3s, color .3s; }
.filters button.active, .filters button:hover { background: var(--text); color: #000; }
.projects__grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 340px; gap: 1.2rem; grid-auto-flow: dense; }
.project { position: relative; overflow: hidden; cursor: none; background: var(--bg-3); transition: opacity .5s, transform .5s var(--ease); }
.project--tall { grid-row: span 2; }
.project--wide { grid-column: span 2; }
.project img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter .6s; filter: saturate(.85) brightness(.85); }
.project:hover img { transform: scale(1.07); filter: saturate(1.05) brightness(1); }
.project figcaption { position: absolute; inset: auto 0 0 0; padding: 1.6rem; background: linear-gradient(0deg, rgba(0,0,0,.85), transparent); transform: translateY(14px); transition: transform .6s var(--ease); }
.project:hover figcaption { transform: translateY(0); }
.project figcaption span { font-size: .68rem; letter-spacing: .25em; color: var(--gold); text-transform: uppercase; }
.project figcaption h3 { font-size: 1.2rem; font-weight: 500; }
.project.is-hidden { display: none; }
@media (max-width: 1000px) { .projects__grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 280px; } }
@media (max-width: 600px) { .projects__grid { grid-template-columns: 1fr; } .project--tall { grid-row: span 1; } .project--wide { grid-column: span 1; } }
@media (hover: none) { .project { cursor: pointer; } }

/* ---------- Before / After ---------- */
.compare__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 4rem; align-items: center; }
.compare p:not(.eyebrow) { color: var(--muted); max-width: 440px; }
.ba { position: relative; aspect-ratio: 4 / 4.4; overflow: hidden; user-select: none; touch-action: pan-y; cursor: ew-resize; border: 1px solid var(--line); }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba__before { position: absolute; inset: 0; clip-path: inset(0 50% 0 0); }
.ba__before img { filter: grayscale(.4) contrast(1.05); }
.ba__handle { position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: var(--gold); transform: translateX(-50%); }
.ba__handle span { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 56px; height: 56px; border-radius: 50%; background: var(--gold); color: #000; display: grid; place-items: center; font-size: 1.3rem; box-shadow: 0 10px 40px rgba(0,0,0,.5); }
.ba__label { position: absolute; top: 1.2rem; font-size: .65rem; letter-spacing: .25em; background: rgba(0,0,0,.55); padding: .4rem .8rem; backdrop-filter: blur(6px); }
.ba__label--l { left: 1.2rem; } .ba__label--r { right: 1.2rem; color: var(--gold); }
@media (max-width: 860px) { .compare__grid { grid-template-columns: 1fr; } }

/* ---------- Process ---------- */
.process { background: var(--bg-2); }
.timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; padding-top: 3rem; }
.timeline__line { position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--line); }
.timeline__line span { display: block; height: 100%; width: 0; background: var(--gold-grad); }
.step b { display: block; font-size: 3.4rem; font-weight: 200; color: transparent; -webkit-text-stroke: 1px var(--gold); line-height: 1; margin-bottom: 1.4rem; }
.step h3 { font-size: 1.15rem; font-weight: 500; margin-bottom: .6rem; }
.step p { color: var(--muted); font-size: .92rem; }
@media (max-width: 900px) { .timeline { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .timeline { grid-template-columns: 1fr; } }

/* ---------- Fleet ---------- */
.fleet__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 6vw, 7rem); align-items: center; }
.fleet__media { overflow: hidden; aspect-ratio: 4/5; }
.fleet__media img { width: 100%; height: 120%; object-fit: cover; will-change: transform; }
.fleet__text > p:not(.eyebrow) { color: var(--muted); margin-bottom: 2rem; }
.fleet__list { list-style: none; border-top: 1px solid var(--line); }
.fleet__list li { display: flex; justify-content: space-between; gap: 1rem; padding: 1.3rem 0; border-bottom: 1px solid var(--line); transition: padding .4s var(--ease), color .3s; }
.fleet__list li:hover { padding-left: 1rem; color: var(--gold); }
.fleet__list em { font-style: normal; color: var(--muted); font-size: .85rem; text-align: right; }
@media (max-width: 860px) { .fleet__grid { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 5rem; align-items: end; }
.contact__info { display: grid; gap: 1.6rem; margin-top: 3rem; font-size: 1.15rem; }
.contact__info small { display: block; font-size: .68rem; letter-spacing: .25em; text-transform: uppercase; color: var(--gold); }
.form { display: grid; gap: 1.6rem; background: var(--bg-2); padding: clamp(1.8rem, 4vw, 3rem); border: 1px solid var(--line); }
.field { position: relative; }
.field input, .field textarea { width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--line); color: var(--text); padding: 1.3rem 0 .6rem; font: inherit; outline: none; resize: vertical; transition: border-color .3s; }
.field label { position: absolute; left: 0; top: 1.2rem; color: var(--muted); pointer-events: none; transition: all .3s var(--ease); font-size: .95rem; }
.field input:focus, .field textarea:focus { border-color: var(--gold); }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { top: 0; font-size: .7rem; letter-spacing: .15em; color: var(--gold); }
.form__status { font-size: .85rem; color: var(--gold); min-height: 1.2em; }
@media (max-width: 900px) { .contact__grid { grid-template-columns: 1fr; gap: 3rem; } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 2.5rem 0; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; font-size: .8rem; color: var(--muted); }
.footer__top { color: var(--gold); }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 9995; background: rgba(5,5,6,.95); backdrop-filter: blur(10px); display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .5s var(--ease); }
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 88vw; max-height: 82vh; object-fit: contain; transform: scale(.94); transition: transform .6s var(--ease); }
.lightbox.open img { transform: scale(1); }
.lightbox__close { position: absolute; top: 1.5rem; right: 2rem; font-size: 1.4rem; }
.lightbox__nav { position: absolute; top: 50%; transform: translateY(-50%); font-size: 3rem; font-weight: 200; padding: 1rem; color: var(--gold); }
.lightbox__prev { left: 1rem; } .lightbox__next { right: 1rem; }
.lightbox__cap { position: absolute; bottom: 2rem; left: 0; right: 0; text-align: center; letter-spacing: .1em; font-size: .9rem; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

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