/* =========================================================
   AKTION — style.css
   Μοντέρνο, ήρεμο, συμμετρικό: μέτρια μεγέθη γραμμάτων,
   εικόνα πάνω — κείμενο κάτω, ίσες στήλες, ελάχιστη κίνηση.
   Όλα τα χρώματα/γραμματοσειρές στο :root.
   ========================================================= */

:root {
    --ink: #14181c;
    --ink-2: #1d2328;
    --ink-3: #2a3238;
    --paper: #f5f4f0;
    --paper-2: #ebe9e3;
    --white: #ffffff;
    --steel: #5c6770;
    --steel-light: #9aa4ad;
    --line: rgba(20, 24, 28, .12);
    --line-light: rgba(255, 255, 255, .14);
    --accent: #9fc428;          /* πράσινο του λογοτύπου */
    --accent-dark: #8bad1d;
    --accent-ink: #5a7410;      /* σκούρο πράσινο για κείμενο σε ανοιχτό φόντο */
    --hl: var(--accent-ink);
    --ok: #2f7a4b;
    --err: #b3261e;

    --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;

    --wrap: 1240px;
    --gut: clamp(16px, 4vw, 40px);
    --hdr: 74px;
    --r: 10px;                  /* στρογγύλεμα γωνιών */
    --shadow: 0 1px 2px rgba(20,24,28,.04), 0 8px 24px rgba(20,24,28,.06);
    --ease: cubic-bezier(.2, .7, .2, 1);
    --truss: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.055' stroke-width='1'%3E%3Cpath d='M0 .5H120M0 60.5H120M.5 0V120M60.5 0V120'/%3E%3Cpath d='M0 0L60 60L120 0M0 120L60 60L120 120'/%3E%3C/g%3E%3Cg fill='%23ffffff' fill-opacity='.09'%3E%3Ccircle cx='60.5' cy='60.5' r='1.6'/%3E%3Ccircle cx='.5' cy='.5' r='1.6'/%3E%3C/g%3E%3C/svg%3E");
    --glow: radial-gradient(ellipse 60% 80% at 100% 0%, rgba(159,196,40,.16), transparent 70%), radial-gradient(ellipse 50% 70% at 0% 100%, rgba(159,196,40,.07), transparent 70%);
}

/* σε σκούρο φόντο η έμφαση γίνεται φωτεινό πράσινο */
.sec--ink, .hero, .ftr, .mega, .sheet, .contact__info, .phead, .nav.is-open, .lb { --hl: var(--accent); }

/* ---------- Βάση ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0 0 .55em; line-height: 1.2; letter-spacing: -.015em; font-weight: 700; }
h1 { font-size: clamp(30px, 3.4vw, 46px); }
h2 { font-size: clamp(24px, 2.3vw, 32px); }
h3 { font-size: 18px; letter-spacing: -.005em; }
p { margin: 0 0 1em; }
.i { flex: none; vertical-align: middle; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .04em; font-weight: 500; }
.kick { color: var(--hl); margin-bottom: 12px; }
.center { text-align: center; }
.lead { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.6; font-weight: 500; color: var(--ink); }
/* πλήρης στοίχιση στα κείμενα περιεχομένου */
.split__text p, .svc__main > p {
    text-align: justify; text-justify: inter-word; hyphens: auto; -webkit-hyphens: auto;
}
.skip { position: absolute; left: -999px; top: 8px; z-index: 999; background: var(--ink); color: #fff; padding: 10px 16px; }
.skip:focus { left: 8px; }

/* ---------- Κουμπιά ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 22px; font-weight: 600; font-size: 15px;
    border: 1.5px solid transparent; border-radius: 999px;
    transition: background .2s, color .2s, border-color .2s;
    white-space: nowrap;
}
.btn--accent { background: var(--accent); color: var(--ink); }
.btn--accent:hover { background: var(--accent-dark); }
.btn--light { background: var(--ink); color: #fff; }
.btn--light:hover { background: var(--ink-3); }
.btn--line-light { border-color: rgba(255,255,255,.35); color: #fff; }
.btn--line-light:hover { border-color: #fff; }
.btn--sm { padding: 10px 18px; font-size: 14px; }
.btn--lg { padding: 15px 28px; }
.btn--block { width: 100%; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; color: var(--ink); }
.link-arrow .i { transition: transform .2s; }
.link-arrow:hover { color: var(--accent-ink); }
.link-arrow:hover .i { transform: translateX(3px); }

/* ---------- Header ---------- */
.hdr {
    position: sticky; top: 0; z-index: 100;
    background: rgba(245, 244, 240, .9);
    backdrop-filter: saturate(1.4) blur(12px);
    -webkit-backdrop-filter: saturate(1.4) blur(12px);
    border-bottom: 1px solid var(--line);
    transition: box-shadow .3s;
}
.hdr.is-scrolled { box-shadow: 0 6px 24px rgba(20,24,28,.06); }
.hdr__in { height: var(--hdr); display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand img { height: 54px; width: auto; }
.brand__text { font-weight: 800; font-size: 24px; letter-spacing: .06em; }
.brand--light img { filter: brightness(0) invert(1); opacity: .95; }
.brand--light .brand__text { color: #fff; }

.nav { margin-left: auto; }
.nav__list { list-style: none; margin: 0; padding: 0; display: flex; gap: 2px; }
.nav__list > li > a { display: block; padding: 8px 14px; font-weight: 600; font-size: 15px; border-radius: 999px; transition: background .2s; }
.nav__list > li > a:hover { background: rgba(20,24,28,.05); }
.nav__list > li > a[aria-current] { background: var(--ink); color: #fff; }
.nav__mobile-foot { display: none; }

.nav__has-mega { position: relative; }
.mega { position: absolute; top: 100%; left: 50%; transform: translateX(-50%); width: 520px; padding-top: 12px; opacity: 0; visibility: hidden; transition: opacity .2s; }
.mega__in { background: var(--ink); color: #fff; padding: 8px; border-radius: var(--r); display: grid; grid-template-columns: 1fr 1fr; gap: 2px; box-shadow: 0 24px 48px rgba(0,0,0,.2); }
.mega__item { display: flex; gap: 12px; align-items: baseline; padding: 12px 14px; font-weight: 500; font-size: 14.5px; line-height: 1.35; border-radius: 6px; transition: background .2s; }
.mega__item .mono { color: var(--hl); }
.mega__item:hover { background: var(--ink-3); }
.nav__has-mega:hover .mega, .nav__has-mega:focus-within .mega { opacity: 1; visibility: visible; }

.hdr__act { display: flex; align-items: center; gap: 16px; }
.hdr__tel { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; }
.hdr__tel .i { color: var(--accent-ink); }
.burger { display: none; width: 44px; height: 44px; position: relative; }
.burger span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink); transition: .3s var(--ease); }
.burger span:first-child { top: 17px; }
.burger span:last-child { top: 25px; }
.burger[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero: slider σε όλο το πλάτος ---------- */
.hero { position: relative; color: #fff; background: var(--ink); min-height: clamp(560px, calc(100svh - var(--hdr)), 860px); display: flex; overflow: hidden; }
.hero__slides { position: absolute; inset: 0; }
.hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s ease; }
.hero__slide.is-on { opacity: 1; }
.hero__slide img, .hero__slide .ph { width: 100%; height: 100%; object-fit: cover; }
.hero__slide.is-on img { animation: heroZoom calc(var(--dur, 6000ms) + 1500ms) linear both; }
@keyframes heroZoom { from { transform: scale(1.03); } to { transform: scale(1); } }
.hero__shade { position: absolute; inset: 0; pointer-events: none;
    background:
        linear-gradient(90deg, rgba(14,17,20,.88) 0%, rgba(14,17,20,.62) 42%, rgba(14,17,20,.15) 75%, rgba(14,17,20,.05) 100%),
        linear-gradient(0deg, rgba(14,17,20,.75) 0%, rgba(14,17,20,0) 32%); }
.hero__in { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: center; padding-top: 72px; padding-bottom: 0; }
.hero__text { max-width: 600px; margin-block: auto; }
.hero h1 { font-size: clamp(32px, 3.6vw, 52px); line-height: 1.12; margin-bottom: 18px; text-shadow: 0 2px 24px rgba(0,0,0,.25); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero__lead { font-size: 17px; color: #d6dbdf; max-width: 34em; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }

.hero__bar { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-top: 56px; padding: 22px 0 28px; border-top: 1px solid rgba(255,255,255,.18); }
.hero__facts { display: flex; gap: 40px; margin: 0; }
.hero__facts dt { color: #b9c0c6; margin-bottom: 2px; }
.hero__facts dd { margin: 0; font-size: 18px; font-weight: 700; }
.hero__ctrl { display: flex; align-items: center; gap: 14px; }
.hero__label { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14.5px; color: #fff; margin-right: 6px; }
.hero__label .i { color: var(--accent); }
.hero__label:hover { color: var(--accent); }
.hero__dots { display: flex; gap: 6px; }
.hero__dots button { width: 34px; height: 20px; display: grid; align-items: center; }
.hero__dots i { display: block; height: 3px; border-radius: 3px; background: rgba(255,255,255,.3); overflow: hidden; position: relative; }
.hero__dots i::after { content: ""; position: absolute; inset: 0; background: var(--accent); transform: scaleX(0); transform-origin: left; }
.hero__dots .is-on i::after { animation: dotFill var(--dur, 6000ms) linear forwards; }
@keyframes dotFill { to { transform: scaleX(1); } }
.hero__arrow { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.3); transition: .2s; }
.hero__arrow:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* ---------- Μπάρα υλικών (στατική) ---------- */
.materials-bar { background: var(--accent); color: var(--ink); }
.materials-bar__in { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px 0; padding-block: 15px; }
.materials-bar span { font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; }
.materials-bar span + span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .4; margin: 0 22px; }

/* ---------- Γραφικό φόντου στα σκούρα μπλοκ: μεταλλικός δικτυωτός φορέας + πράσινη λάμψη ---------- */
.sec--ink, .phead, .contact__info, .ftr, .card--cta, .sheet {
    background-color: var(--ink);
    background-image: var(--glow), var(--truss);
    background-size: auto, 120px 120px;
}

/* ---------- Ενότητες ---------- */
.sec { padding: clamp(64px, 7vw, 100px) 0; }
.sec--ink { color: #fff; }
.sec--paper2 { background: var(--paper-2); }
.sec__head { margin-bottom: 40px; max-width: 720px; }
.sec__head--row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; max-width: none; }
.sec__head h2 { margin: 0; }

/* Εικόνα + κείμενο σε ίσες στήλες, κεντραρισμένα κάθετα */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.split__media { border-radius: var(--r); overflow: hidden; aspect-ratio: 4 / 3; background: var(--paper-2); }
.split__media img, .split__media .ph { width: 100%; height: 100%; object-fit: cover; }
.split__text > p:not(.lead):not(.kick) { color: var(--steel); }

/* ---------- Κάρτες υπηρεσιών: εικόνα πάνω, κείμενο κάτω, 4×2 ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { display: flex; flex-direction: column; background: var(--white); border-radius: var(--r); overflow: hidden; box-shadow: var(--shadow); transition: box-shadow .25s; }
.card:hover { box-shadow: 0 2px 4px rgba(20,24,28,.05), 0 16px 36px rgba(20,24,28,.10); }
.card__media { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-2); }
.card__media img, .card__media .ph { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.card:hover .card__media img { transform: scale(1.03); }
.card__body { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px 20px; flex: 1; }
.card__n { color: var(--hl); }
.card__t { font-weight: 700; font-size: 17px; line-height: 1.3; letter-spacing: -.005em; }
.card__d { color: var(--steel); font-size: 14.5px; line-height: 1.6; }
.card__more { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; color: var(--accent-ink); }
.card--cta { color: #fff; --hl: var(--accent); justify-content: center; }
.card--cta .card__body { justify-content: center; padding: 28px; }
.card--cta .card__t { font-size: 20px; }
.card--cta .card__d { color: #c3c9ce; }
.card--cta .card__more { color: var(--accent); margin-top: 8px; }

/* ---------- Έργα: συμμετρικό πλέγμα 4 στηλών ---------- */
.works { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px 20px; }
.work { margin: 0; }
.work.is-hidden { display: none; }
.work > a { display: block; position: relative; overflow: hidden; aspect-ratio: 4 / 3; border-radius: var(--r); background: var(--paper-2); }
.work img, .work .ph { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.work > a:hover img { transform: scale(1.03); }
.work__zoom { position: absolute; right: 12px; bottom: 12px; width: 38px; height: 38px; display: grid; place-items: center; background: var(--accent); color: var(--ink); border-radius: 50%; opacity: 0; transition: opacity .2s; }
.work > a:hover .work__zoom { opacity: 1; }
.work figcaption { padding-top: 12px; display: grid; gap: 2px; }
.work figcaption .mono { color: var(--hl); }
.work figcaption strong { font-size: 15.5px; font-weight: 600; }
.work__loc { color: var(--steel); font-size: 14px; display: inline-flex; align-items: center; gap: 5px; }

/* ---------- Μέθοδος ---------- */
.method { background: var(--paper-2); }
.method__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.method__list li { background: var(--white); border-radius: var(--r); padding: 24px; box-shadow: var(--shadow); }
.method__n { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--ink); font-size: 13px; margin-bottom: 16px; }
.method__list h3 { font-size: 17px; }
.method__list p { color: var(--steel); font-size: 14.5px; margin: 0; }

/* ---------- Συνεργάτες ---------- */
.partners { padding: 56px 0; }
.partners__list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.partners__list li { background: var(--white); border-radius: var(--r); display: grid; place-items: center; padding: 14px; aspect-ratio: 16 / 9; }
.partners__list img { max-height: 52px; width: auto; filter: grayscale(1); opacity: .7; transition: .3s; }
.partners__list li:hover img { filter: none; opacity: 1; }
.partners__list .ph { background: none; font-size: 12px; }

/* ---------- CTA ---------- */
.cta { background: var(--accent); color: var(--ink); padding: clamp(48px, 6vw, 72px) 0; }
.cta__in { display: grid; grid-template-columns: 1fr auto; gap: 16px 40px; align-items: center; }
.cta__kick { color: rgba(20,24,28,.65); margin: 0; grid-column: 1 / -1; }
.cta__title { font-size: clamp(24px, 2.6vw, 34px); margin: 0; }
.cta__title br { display: none; }
.cta__row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }
.cta__big { display: inline-flex; align-items: center; gap: 8px; font-size: clamp(20px, 2vw, 26px); font-weight: 700; }
.cta__big .i { width: 22px; height: 22px; }

/* ---------- Footer ---------- */
.ftr { color: #c3c9ce; padding: 64px 0 0; font-size: 14.5px; }
.ftr__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.ftr__brand p { margin: 18px 0; max-width: 34ch; }
.ftr h4 { color: var(--hl); margin-bottom: 16px; font-weight: 500; }
.ftr ul { list-style: none; margin: 0; padding: 0; }
.ftr li { margin-bottom: 8px; }
.ftr a:hover { color: #fff; }
.ftr__contact li { display: flex; gap: 10px; align-items: flex-start; }
.ftr__contact .i { margin-top: 4px; color: var(--hl); }
.ftr__social { display: flex; gap: 8px; }
.ftr__social a { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line-light); border-radius: 50%; transition: .2s; }
.ftr__social a:hover { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.ftr__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-block: 20px; border-top: 1px solid var(--line-light); font-size: 13px; color: var(--steel-light); }
.ftr__top { display: inline-flex; align-items: center; gap: 6px; }
.fab { display: none; }

/* ---------- Κεφαλίδα εσωτερικών ---------- */
.phead { color: #fff; padding: 56px 0 52px; position: relative; overflow: hidden; }
.phead--img { min-height: 400px; display: flex; align-items: flex-end; }
.phead__bg { position: absolute; inset: 0; }
.phead__bg img, .phead__bg .ph { width: 100%; height: 100%; object-fit: cover; }
.phead__bg::after { content: ""; position: absolute; inset: 0; background: var(--truss), linear-gradient(90deg, rgba(14,17,20,.85) 0%, rgba(14,17,20,.55) 55%, rgba(14,17,20,.25) 100%), linear-gradient(0deg, rgba(14,17,20,.6) 0%, rgba(14,17,20,0) 50%); background-size: 120px 120px, auto, auto; }
.phead__in { position: relative; z-index: 1; }
.phead h1 { max-width: 22em; font-size: clamp(28px, 3vw, 42px); }
.phead__txt { max-width: 44em; font-size: 17px; color: #d0d5d9; margin: 0; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--steel-light); margin-bottom: 24px; }
.crumbs a:hover { color: #fff; }
.phead__kick { color: var(--hl); margin-bottom: 8px; }

/* ---------- Η εταιρεία ---------- */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.timeline li { background: var(--white); border-radius: var(--r); padding: 26px; box-shadow: var(--shadow); }
.timeline__y { display: block; font-size: 28px; font-weight: 700; color: var(--accent-ink); margin-bottom: 10px; line-height: 1; }
.timeline h3 { font-size: 17px; }
.timeline p { color: var(--steel); font-size: 14.5px; margin: 0; }

.principles__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.principles blockquote { margin: 0; border: 1px solid var(--line-light); border-radius: var(--r); padding: 28px; }
.principles blockquote .mono { color: var(--hl); }
.principles blockquote p { font-size: clamp(18px, 1.6vw, 22px); line-height: 1.45; font-weight: 600; margin: 10px 0 0; }

.materials { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.materials li { background: var(--white); border-radius: var(--r); padding: 22px 18px; font-size: 16px; font-weight: 600; display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow); text-align: center; }
.materials li .mono { color: var(--hl); }

/* ---------- Chips ---------- */
.chips { list-style: none; margin: 0 0 20px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 13px; font-weight: 600; padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; }
.chips--stack { flex-direction: column; gap: 0; margin: 0; }
.chips--stack li { border: 0; border-radius: 0; border-bottom: 1px solid var(--line-light); padding: 10px 0; display: flex; gap: 10px; align-items: center; font-size: 14.5px; }
.chips--stack .i { color: var(--hl); }

/* ---------- Σελίδα υπηρεσίας ---------- */
.svc { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: clamp(30px, 5vw, 64px); align-items: start; }
.svc__main > p:not(.lead) { color: var(--steel); }
.svc__h { font-size: clamp(22px, 2vw, 26px); margin-top: 48px; margin-bottom: 20px; }
.specs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.specs li { display: flex; gap: 12px; align-items: baseline; padding: 14px 16px; background: var(--white); border-radius: 8px; font-weight: 500; font-size: 15px; box-shadow: var(--shadow); }
.specs .mono { color: var(--hl); }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gallery__item { display: block; overflow: hidden; aspect-ratio: 4 / 3; border-radius: var(--r); background: var(--paper-2); }
.gallery__item img, .gallery__item .ph { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.gallery__item:hover img { transform: scale(1.03); }

.svc__side { position: sticky; top: calc(var(--hdr) + 24px); }
.sheet { color: #fff; padding: 26px; border-radius: var(--r); }
.sheet__kick { color: var(--hl); margin-bottom: 6px; }
.sheet hr { border: 0; border-top: 1px solid var(--line-light); margin: 20px 0; }
.sheet__q { font-size: 17px; font-weight: 600; line-height: 1.4; }
.sheet__tel { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 12px; padding: 11px; font-weight: 600; border: 1px solid var(--line-light); border-radius: 999px; }
.sheet__tel:hover { border-color: #fff; }
.sheet__hours { text-align: center; color: var(--steel-light); margin: 12px 0 0; }

.pn { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.pn__item { padding: 32px var(--gut); display: flex; flex-direction: column; gap: 6px; transition: background .2s; }
.pn__item + .pn__item { border-left: 1px solid var(--line); }
.pn__item--next { text-align: right; align-items: flex-end; }
.pn__item .mono { color: var(--steel); display: inline-flex; align-items: center; gap: 8px; }
.pn__item strong { font-size: clamp(17px, 1.6vw, 21px); font-weight: 600; line-height: 1.3; }
.pn__item:hover { background: var(--paper-2); }

/* ---------- Φίλτρα έργων ---------- */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 36px; }
.filters__b { padding: 8px 18px; border: 1px solid var(--line); border-radius: 999px; font-weight: 600; font-size: 14.5px; transition: .2s; }
.filters__b sup { color: var(--hl); font-size: 11px; margin-left: 2px; }
.filters__b:hover { border-color: var(--ink); }
.filters__b.is-on { background: var(--ink); color: #fff; border-color: var(--ink); --hl: var(--accent); }

/* ---------- Επικοινωνία: 50 / 50 ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; }
.contact__info {
    color: #fff;
    padding: 56px clamp(24px, 4vw, 64px) 48px max(var(--gut), calc((100vw - var(--wrap)) / 2 + var(--gut)));
    display: flex; flex-direction: column;
}
.contact__info h1 { font-size: clamp(30px, 3.2vw, 44px); }
.contact__info h1 br { display: none; }
.contact__lead { color: #c3c9ce; font-size: 17px; max-width: 28em; }
.contact__phone { display: inline-block; font-size: clamp(22px, 2.2vw, 30px); font-weight: 700; color: var(--hl); margin: 12px 0 32px; }
.contact__phone:hover { color: #fff; }
.contact__dl { margin: auto 0 0; border-top: 1px solid var(--line-light); }
.contact__dl > div { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line-light); font-size: 15px; }
.contact__dl dt { color: var(--steel-light); padding-top: 3px; }
.contact__dl dd { margin: 0; }
.contact__dl a:hover { color: var(--hl); }
.contact__form { padding: 56px max(var(--gut), calc((100vw - var(--wrap)) / 2 + var(--gut))) 56px clamp(24px, 4vw, 64px); }

.fgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.f { display: block; margin-bottom: 18px; }
.f--full { grid-column: 1 / -1; }
.f span { display: block; font-size: 13.5px; font-weight: 600; color: var(--steel); margin-bottom: 6px; }
.f input, .f select, .f textarea {
    width: 100%; font: inherit; font-size: 15.5px; color: var(--ink); background: var(--white);
    border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; transition: border-color .2s, box-shadow .2s;
    -webkit-appearance: none; appearance: none;
}
.f select { background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2314181c' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center; padding-right: 38px; }
.f textarea { resize: vertical; min-height: 120px; }
.f input:focus, .f select:focus, .f textarea:focus { outline: none; border-color: var(--accent-dark); box-shadow: 0 0 0 3px rgba(159,196,40,.25); }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--steel); margin-bottom: 24px; cursor: pointer; }
.consent input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--accent-dark); flex: none; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 16px 20px; margin-bottom: 24px; border-radius: 8px; border-left: 4px solid; font-size: 15px; }
.notice--ok { background: #e8f1e1; border-color: var(--ok); display: flex; gap: 14px; align-items: flex-start; }
.notice--ok .i { color: var(--ok); }
.notice--ok p { margin: 4px 0 0; }
.notice--err { background: #f8e7e5; border-color: var(--err); }
.notice--err ul { margin: 8px 0 0; padding-left: 18px; }
.map iframe { display: block; width: 100%; height: 380px; border: 0; filter: grayscale(1); }

/* ---------- 404 ---------- */
.nf { text-align: center; }
.nf__code { font-size: clamp(80px, 12vw, 140px); line-height: 1; color: var(--accent-ink); }

/* ---------- Placeholder ---------- */
.ph { display: grid; place-items: center; color: var(--steel); font-family: var(--mono); font-size: 12px; text-align: center; padding: 16px; background: var(--paper-2); }

/* ---------- Lightbox ---------- */
.lb { position: fixed; inset: 0; z-index: 300; background: rgba(12, 14, 16, .94); display: grid; place-items: center; padding: 60px 70px; }
.lb[hidden] { display: none; }
.lb__fig { margin: 0; max-width: 100%; max-height: 100%; display: flex; flex-direction: column; align-items: center; }
.lb__fig img { max-width: 100%; max-height: calc(100vh - 140px); object-fit: contain; border-radius: 6px; }
.lb__fig figcaption { color: #c3c9ce; font-size: 14px; margin-top: 12px; }
.lb__btn { position: absolute; color: #fff; width: 50px; height: 50px; display: grid; place-items: center; }
.lb__btn:hover { color: var(--accent); }
.lb__close { top: 10px; right: 10px; }
.lb__prev { left: 8px; top: 50%; transform: translateY(-50%); }
.lb__next { right: 8px; top: 50%; transform: translateY(-50%); }

/* ---------- Ήπια εμφάνιση (μόνο fade) ---------- */
.js .reveal { opacity: 0; transition: opacity .6s ease; }
.js .reveal.is-in { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
    .hero__slide.is-on img { animation: none; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .js .reveal { opacity: 1; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1180px) {
    .hide-md { display: none; }
    .nav__list > li > a { padding: 8px 10px; }
    .cards, .works { grid-template-columns: repeat(2, 1fr); }
    .materials { grid-template-columns: repeat(3, 1fr); }
    .partners__list { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
    :root { --hdr: 64px; }
    .burger { display: block; }
    .hdr__tel span { display: none; }
    .hdr__tel { width: 42px; height: 42px; justify-content: center; border: 1px solid var(--line); border-radius: 50%; }
    .brand img { height: 44px; }
    .nav {
        position: fixed; inset: var(--hdr) 0 0 0; background: var(--ink); color: #fff;
        padding: 24px var(--gut); overflow-y: auto; display: flex; flex-direction: column; justify-content: space-between;
        opacity: 0; visibility: hidden; transition: opacity .25s;
    }
    .nav.is-open { opacity: 1; visibility: visible; }
    body.nav-open { overflow: hidden; }
    .nav__list { flex-direction: column; gap: 0; }
    .nav__list > li { border-bottom: 1px solid var(--line-light); }
    .nav__list > li > a { font-size: 20px; font-weight: 600; padding: 14px 0; border-radius: 0; }
    .nav__list > li > a:hover, .nav__list > li > a[aria-current] { background: none; color: var(--accent); }
    .mega { position: static; transform: none; width: auto; opacity: 1; visibility: visible; padding: 0 0 12px; }
    .mega__in { background: none; box-shadow: none; padding: 0; grid-template-columns: 1fr; }
    .mega__item { padding: 7px 0; color: #c3c9ce; font-size: 14.5px; }
    .nav__mobile-foot { display: grid; gap: 12px; padding-top: 24px; font-weight: 600; }
    .nav__mobile-foot a { display: flex; gap: 10px; align-items: center; }
    .nav__mobile-foot .i { color: var(--accent); }

    .hero { min-height: 600px; }
    .hero__shade { background: linear-gradient(0deg, rgba(14,17,20,.92) 0%, rgba(14,17,20,.6) 55%, rgba(14,17,20,.3) 100%); }
    .hero__in { padding-top: 48px; }
    .hero__bar { flex-direction: column; align-items: flex-start; margin-top: 36px; }

    .split { grid-template-columns: 1fr; }
    .method__list { grid-template-columns: 1fr 1fr; }
    .timeline { grid-template-columns: 1fr; }
    .principles__grid { grid-template-columns: 1fr; }
    .svc { grid-template-columns: 1fr; }
    .svc__side { position: static; }
    .contact { grid-template-columns: 1fr; }
    .contact__info, .contact__form { padding: 40px var(--gut); }
    .contact__dl { margin-top: 10px; }
    .cta__in { grid-template-columns: 1fr; }
    .ftr__grid { grid-template-columns: 1fr 1fr; }
    .ftr__brand { grid-column: 1 / -1; }

    .fab {
        display: grid; place-items: center; position: fixed; right: 16px; bottom: 16px; z-index: 90;
        width: 54px; height: 54px; border-radius: 50%; background: var(--accent); color: var(--ink);
        box-shadow: 0 8px 24px rgba(20,24,28,.25);
    }
}

@media (max-width: 640px) {
    .hdr__act .btn { display: none; }
    .sec__head--row { flex-direction: column; align-items: flex-start; }
    .hero__facts { gap: 22px; }
    .hero__facts dd { font-size: 15px; }
    .hero__label { display: none; }
    .hero__ctrl { width: 100%; justify-content: space-between; }
    .materials-bar__in { justify-content: center; gap: 4px 18px; padding-block: 12px; }
    .materials-bar span { font-size: 14px; }
    .materials-bar span + span::before { display: none; }
    .cards, .works { grid-template-columns: 1fr; }
    .method__list { grid-template-columns: 1fr; }
    .materials { grid-template-columns: repeat(2, 1fr); }
    .partners__list { grid-template-columns: repeat(2, 1fr); }
    .specs { grid-template-columns: 1fr; }
    .gallery { grid-template-columns: 1fr; }
    .fgrid { grid-template-columns: 1fr; }
    .contact__dl > div { grid-template-columns: 1fr; gap: 2px; }
    .pn { grid-template-columns: 1fr; }
    .pn__item + .pn__item { border-left: 0; border-top: 1px solid var(--line); }
    .ftr__grid { grid-template-columns: 1fr; }
    .lb { padding: 50px 10px; }
    .lb__prev, .lb__next { top: auto; bottom: 6px; transform: none; }
}