/* ═══════════════════════════════════════════════════════════
   VOLTPIERIAS.GR — Central Stylesheet
   Auto light/dark via prefers-color-scheme.
   All tokens, components and layout rules live here.
   Templates contain zero inline styles.
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=Outfit:wght@300;400;500;600&display=swap');

/* ─────────────────────────────────────────────────────────
   DARK THEME (default)
   ───────────────────────────────────────────────────────── */
:root {
  --bg:           #0b0f18;
  --surface:      #131929;
  --surface2:     #1a2235;
  --border:       #243048;
  --border-hover: #344460;
  --accent:       #f5c400;
  --accent-hover: #ffd740;
  --accent-dim:   rgba(245, 196, 0, 0.09);
  --accent-bdr:   rgba(245, 196, 0, 0.25);
  --text:         #eef1f8;
  --muted:        #8d9bb5;
  --nav-bg:       rgba(11, 15, 24, 0.95);

  --font-head: 'Syne', sans-serif;
  --font-body: 'Outfit', sans-serif;

  --section-px: 4.5rem;
  --section-py: 6rem;
  --nav-h:      64px;
  --radius:     3px;
  --ease:       .22s ease;
}

/* ─────────────────────────────────────────────────────────
   LIGHT THEME
   ───────────────────────────────────────────────────────── */
@media (prefers-color-scheme: light) {
  :root {
    --bg:           #f4f6fb;
    --surface:      #ffffff;
    --surface2:     #eaeff8;
    --border:       #d5dce8;
    --border-hover: #b0bdd0;
    --accent:       #c49800;
    --accent-hover: #a87e00;
    --accent-dim:   rgba(196, 152, 0, 0.08);
    --accent-bdr:   rgba(196, 152, 0, 0.25);
    --text:         #0f1823;
    --muted:        #5a6880;
    --nav-bg:       rgba(244, 246, 251, 0.95);
  }
}

/* ─────────────────────────────────────────────────────────
   RESET
   ───────────────────────────────────────────────────────── */
*, *::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-body);
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}

/* Grain — dark only */
@media (prefers-color-scheme: dark) {
  body::before {
    content: '';
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    opacity: 0.025;
  }
}

/* Headings — allow long Greek words to wrap/hyphenate */
h1, h2, h3, .section-title, .card-title, .step-title {
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
}

/* ─────────────────────────────────────────────────────────
   NAVIGATION
   ───────────────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--section-px);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.04em;
  line-height: 1;
  flex-shrink: 0;
}
.logo .volt    { color: var(--accent); font-size: 1.7rem; }
.logo .pierias { color: var(--text);   font-size: 1rem; font-weight: 700; opacity: 0.75; }

.nav-links {
  display: flex; align-items: center;
  gap: 2.2rem; list-style: none;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.09em; text-transform: uppercase;
  text-decoration: none;
  transition: color var(--ease);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--ease);
}
.nav-links a:hover          { color: var(--text); }
.nav-links a:hover::after   { transform: scaleX(1); }
.nav-links a.active         { color: var(--accent); }
.nav-links a.active::after  { transform: scaleX(1); }

.nav-right {
  display: flex; align-items: center; gap: 0.85rem;
}

.nav-lang {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: .3rem .8rem; border-radius: var(--radius);
  text-decoration: none;
  transition: border-color var(--ease), color var(--ease);
}
.nav-lang:hover { border-color: var(--accent); color: var(--accent); }

.nav-cta {
  background: var(--accent); color: #000;
  font-family: var(--font-body);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: .5rem 1.3rem; border-radius: var(--radius);
  text-decoration: none;
  transition: background var(--ease), transform .15s;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }

.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 38px; height: 38px;
  background: none; border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer; padding: 8px;
  transition: border-color var(--ease);
}
.nav-hamburger:hover { border-color: var(--accent); }
.nav-hamburger span {
  display: block; width: 18px; height: 1.5px;
  background: var(--text); border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─────────────────────────────────────────────────────────
   MOBILE DRAWER
   ───────────────────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(24px);
  z-index: 99;
  flex-direction: column;
  padding: 2rem 1.75rem 2.5rem;
  border-top: 1px solid var(--border);
  opacity: 0; transform: translateY(-6px); pointer-events: none;
  transition: transform .22s ease, opacity .22s ease;
}
.mobile-menu.open {
  display: flex;
  opacity: 1; transform: translateY(0); pointer-events: all;
}
.mobile-menu a {
  display: block;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text); text-decoration: none;
  font-family: var(--font-head); font-size: 1.5rem; font-weight: 700;
  letter-spacing: -0.01em;
  transition: color var(--ease);
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--accent); }
.mobile-menu-bottom {
  margin-top: auto;
  display: flex; flex-direction: column; gap: .75rem; padding-top: 2rem;
}
.mobile-lang-btn {
  display: block; text-align: center;
  border: 1px solid var(--border); color: var(--muted);
  padding: .85rem; border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase;
  transition: border-color var(--ease), color var(--ease);
}
.mobile-lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.mobile-cta-btn {
  display: block; text-align: center;
  background: var(--accent); color: #000;
  padding: 1rem; border-radius: var(--radius);
  font-family: var(--font-body); font-weight: 700; font-size: 1rem;
  letter-spacing: 0.04em; text-decoration: none;
}
.mobile-cta-btn:hover { background: var(--accent-hover); }

/* ─────────────────────────────────────────────────────────
   PAGE WRAPPER
   ───────────────────────────────────────────────────────── */
.page-wrap { padding-top: var(--nav-h); }

/* ─────────────────────────────────────────────────────────
   HERO — shared across interior pages
   ───────────────────────────────────────────────────────── */
.hero {
  min-height: 46vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 5rem var(--section-px) 4rem;
  position: relative; overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 55%; height: 100%; pointer-events: none;
  background:
    linear-gradient(90deg, transparent 49px, var(--border) 49px, var(--border) 50px, transparent 50px),
    linear-gradient(0deg,  transparent 49px, var(--border) 49px, var(--border) 50px, transparent 50px);
  background-size: 100px 100px;
  mask-image: linear-gradient(to left, rgba(0,0,0,.12) 0%, transparent 80%);
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 1.4rem;
  opacity: 0; animation: fadeUp .6s .2s forwards;
}
.hero-eyebrow::before { content: ''; width: 24px; height: 2px; background: var(--accent); }

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 4.8rem);
  font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
  max-width: 680px;
  opacity: 0; animation: fadeUp .7s .35s forwards;
}
.hero h1 em { color: var(--accent); font-style: normal; }

.hero-sub {
  margin-top: 1.4rem; max-width: 520px;
  color: var(--muted); font-size: 1rem; font-weight: 300; line-height: 1.8;
  opacity: 0; animation: fadeUp .7s .5s forwards;
}

/* ─────────────────────────────────────────────────────────
   LANDING PAGE
   ───────────────────────────────────────────────────────── */
.landing-hero {
  min-height: calc(100vh - var(--nav-h));
  display: flex; flex-direction: column;
  justify-content: center; align-items: flex-start;
  padding: 4rem var(--section-px);
  position: relative; overflow: hidden;
}
.landing-hero::after {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 60%; height: 100%; pointer-events: none;
  background:
    linear-gradient(90deg, transparent 49px, var(--border) 49px, var(--border) 50px, transparent 50px),
    linear-gradient(0deg,  transparent 49px, var(--border) 49px, var(--border) 50px, transparent 50px);
  background-size: 100px 100px;
  mask-image: linear-gradient(to left, rgba(0,0,0,.1) 0%, transparent 65%);
}

.landing-eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 1.6rem;
  opacity: 0; animation: fadeUp .5s .1s forwards;
}
.landing-eyebrow::before { content: ''; width: 22px; height: 2px; background: var(--accent); }

.landing-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 6.5vw, 6rem);
  font-weight: 800; line-height: 0.97; letter-spacing: -0.04em;
  max-width: 780px;
  opacity: 0; animation: fadeUp .7s .2s forwards;
}
.landing-hero h1 em { color: var(--accent); font-style: normal; }

.landing-tagline {
  margin-top: 1.8rem; max-width: 460px;
  color: var(--muted); font-size: 1.05rem; font-weight: 300; line-height: 1.8;
  opacity: 0; animation: fadeUp .7s .35s forwards;
}

.landing-phone {
  display: inline-flex; align-items: center; gap: .7rem;
  margin-top: 2.8rem;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -0.02em;
  color: var(--accent); text-decoration: none;
  opacity: 0; animation: fadeUp .7s .5s forwards;
  transition: color var(--ease);
}
.landing-phone:hover { color: var(--accent-hover); }
.landing-phone svg { width: clamp(1.3rem, 3vw, 2.2rem); height: clamp(1.3rem, 3vw, 2.2rem); stroke: currentColor; flex-shrink: 0; }

.landing-ctas {
  display: flex; gap: 1rem; flex-wrap: wrap;
  margin-top: 2.2rem;
  opacity: 0; animation: fadeUp .7s .65s forwards;
}

.btn-primary {
  background: var(--accent); color: #000;
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: .85rem 1.9rem; border-radius: var(--radius);
  text-decoration: none;
  transition: background var(--ease), transform .15s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }

.btn-secondary {
  background: transparent; color: var(--text);
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: .85rem 1.9rem; border-radius: var(--radius);
  border: 1px solid var(--border); text-decoration: none;
  transition: border-color var(--ease), color var(--ease), transform .15s;
  white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.landing-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 1.8rem var(--section-px);
  display: flex; align-items: center; gap: 2.5rem; flex-wrap: wrap;
}
.landing-strip-item {
  display: flex; align-items: center; gap: .65rem;
  font-size: 0.85rem; color: var(--muted);
}
.landing-strip-item svg { width: 16px; height: 16px; stroke: var(--accent); flex-shrink: 0; }
.landing-strip-item a   { color: var(--muted); text-decoration: none; transition: color var(--ease); }
.landing-strip-item a:hover { color: var(--accent); }

/* ─────────────────────────────────────────────────────────
   SECTIONS — shared
   ───────────────────────────────────────────────────────── */
section {
  padding: var(--section-py) var(--section-px);
  position: relative;
}

.section-label {
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: .7rem;
  display: flex; align-items: center; gap: .55rem;
}
.section-label::after {
  content: ''; max-width: 36px; flex: 1;
  height: 1px; background: var(--accent); opacity: .4;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.02em;
  line-height: 1.1; margin-bottom: 1rem;
}

/* ─────────────────────────────────────────────────────────
   INTRO STRIP
   ───────────────────────────────────────────────────────── */
.intro-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3.5rem var(--section-px);
  display: flex; align-items: center; gap: 4rem; flex-wrap: wrap;
}
.intro-strip p {
  flex: 1; min-width: 260px;
  font-size: 1rem; color: var(--muted); font-weight: 300; line-height: 1.9;
}
.intro-strip p strong { color: var(--text); font-weight: 500; }
.stat-row  { display: flex; gap: 2.5rem; flex-wrap: wrap; }
.stat      { text-align: center; }
.stat-num  {
  font-family: var(--font-head);
  font-size: 2.6rem; font-weight: 800;
  color: var(--accent); line-height: 1; letter-spacing: -0.02em;
}
.stat-desc { font-size: 0.74rem; color: var(--muted); margin-top: .3rem; letter-spacing: 0.06em; text-transform: uppercase; }

/* ─────────────────────────────────────────────────────────
   SERVICES GRID
   ───────────────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px; margin-top: 3rem;
  border: 1px solid var(--border); background: var(--border);
}

.service-card {
  background: var(--surface);
  padding: 2.6rem 2.2rem;
  position: relative; overflow: hidden;
  transition: background var(--ease);
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 2px; height: 0; background: var(--accent);
  transition: height .35s cubic-bezier(.4,0,.2,1);
}
.service-card:hover         { background: var(--surface2); }
.service-card:hover::before { height: 100%; }

.card-icon {
  width: 48px; height: 48px; margin-bottom: 1.6rem;
  background: var(--accent-dim); border: 1px solid var(--accent-bdr);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--ease), border-color var(--ease);
}
.service-card:hover .card-icon { background: rgba(245,196,0,0.14); border-color: rgba(245,196,0,0.45); }
.card-icon svg { width: 22px; height: 22px; stroke: var(--accent); }

.card-num {
  position: absolute; top: 1.8rem; right: 1.8rem;
  font-family: var(--font-head); font-size: 3.5rem; font-weight: 800;
  color: rgba(255,255,255,0.04); line-height: 1;
  pointer-events: none; user-select: none;
}
@media (prefers-color-scheme: light) {
  .card-num { color: rgba(0,0,0,0.04); }
}

.card-title {
  font-family: var(--font-head); font-size: 1.2rem;
  font-weight: 700; letter-spacing: -0.01em; margin-bottom: .8rem;
}
.card-desc { font-size: 0.9rem; color: var(--muted); line-height: 1.8; font-weight: 300; }

/* ─────────────────────────────────────────────────────────
   PROCESS STEPS
   ───────────────────────────────────────────────────────── */
.process-section { background: var(--surface); border-top: 1px solid var(--border); }

.steps { display: flex; gap: 0; flex-wrap: wrap; margin-top: 3rem; }
.step  { flex: 1; min-width: 200px; padding: 2rem 2.5rem 2rem 0; position: relative; }
.step:not(:last-child)::after {
  content: '→'; position: absolute; right: 0; top: 2.3rem;
  color: var(--accent); font-size: 1.1rem; opacity: .4;
}
.step-num   { font-family: var(--font-head); font-size: 1.8rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: .6rem; }
.step-title { font-weight: 600; font-size: 1rem; margin-bottom: .4rem; }
.step-desc  { font-size: 0.86rem; color: var(--muted); font-weight: 300; line-height: 1.75; }

/* ─────────────────────────────────────────────────────────
   CONTACT PAGE
   ───────────────────────────────────────────────────────── */
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: start;
}
.contact-info h2 { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; margin-bottom: .5rem; }
.contact-info > p { color: var(--muted); font-weight: 300; margin-bottom: 2rem; }

.contact-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.contact-list li { display: flex; align-items: center; gap: .9rem; font-size: 0.95rem; }
.contact-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  background: var(--accent-dim); border: 1px solid var(--accent-bdr);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.contact-icon svg { width: 15px; height: 15px; stroke: var(--accent); }
.contact-list a { color: var(--text); text-decoration: none; transition: color var(--ease); }
.contact-list a:hover { color: var(--accent); }

.map-embed { margin-top: 1.8rem; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); line-height: 0; }
.map-embed iframe { width: 100%; height: 240px; border: 0; filter: invert(90%) hue-rotate(180deg); }
@media (prefers-color-scheme: light) {
  .map-embed iframe { filter: none; }
}

/* ─────────────────────────────────────────────────────────
   CONTACT FORM
   ───────────────────────────────────────────────────────── */
.contact-form  { display: flex; flex-direction: column; gap: 1rem; }
.form-row      { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group    { display: flex; flex-direction: column; gap: .35rem; }
.form-group label {
  font-size: 0.74rem; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--muted);
}
.form-group input,
.form-group textarea {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-body);
  font-size: 0.95rem; padding: .8rem 1rem;
  border-radius: var(--radius); outline: none; resize: none;
  transition: border-color var(--ease);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }

.btn-submit {
  margin-top: .5rem; align-self: flex-start;
  background: var(--accent); color: #000; border: none;
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: .9rem 2.2rem; border-radius: var(--radius); cursor: pointer;
  transition: background var(--ease), transform .15s;
}
.btn-submit:hover { background: var(--accent-hover); transform: translateY(-2px); }

/* ─────────────────────────────────────────────────────────
   PROJECTS PAGE
   ───────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem; margin-top: 3rem;
}
.project-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color var(--ease), transform .2s;
}
.project-card:hover { border-color: var(--accent-bdr); transform: translateY(-3px); }
.project-cover {
  width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block;
  background: var(--surface2);
}
.project-cover-placeholder {
  width: 100%; aspect-ratio: 16/9;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2); color: var(--border);
}
.project-cover-placeholder svg { width: 36px; height: 36px; }
.project-body   { padding: 1.5rem 1.6rem 1.6rem; }
.project-title  { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: .5rem; }
.project-desc   { font-size: 0.87rem; color: var(--muted); font-weight: 300; line-height: 1.75; }
.project-photos { display: flex; gap: .5rem; padding: 0 1.6rem 1.4rem; flex-wrap: wrap; }
.project-thumb  {
  width: 52px; height: 52px; object-fit: cover;
  border-radius: var(--radius); cursor: pointer;
  border: 1px solid var(--border);
  transition: border-color var(--ease), transform .15s;
}
.project-thumb:hover       { border-color: var(--accent); transform: scale(1.06); }
.project-thumb-more {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2); color: var(--muted);
  font-size: 0.76rem; cursor: pointer;
  border: 1px solid var(--border); border-radius: var(--radius);
}

.no-projects { text-align: center; padding: 5rem 2rem; color: var(--muted); }
.no-projects code { background: var(--surface2); padding: .15rem .5rem; border-radius: var(--radius); color: var(--accent); font-size: 0.9em; }

/* ─────────────────────────────────────────────────────────
   LIGHTBOX
   ───────────────────────────────────────────────────────── */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.93); backdrop-filter: blur(10px);
  align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img  { max-width: 90vw; max-height: 88vh; object-fit: contain; border-radius: var(--radius); }
.lightbox-close {
  position: absolute; top: 1.5rem; right: 2rem;
  font-size: 1.8rem; color: var(--muted); cursor: pointer;
  background: none; border: none; font-family: var(--font-body);
  transition: color var(--ease);
}
.lightbox-close:hover { color: var(--accent); }
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  color: var(--text); font-size: 1.4rem;
  padding: .75rem 1.1rem; cursor: pointer; border-radius: var(--radius);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}
.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }
.lightbox-prev:hover,
.lightbox-next:hover { background: var(--accent); color: #000; border-color: var(--accent); }

/* ─────────────────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 1.8rem var(--section-px);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
footer p         { font-size: 0.8rem; color: var(--muted); }
.footer-links    { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a  { color: var(--muted); text-decoration: none; font-size: 0.8rem; transition: color var(--ease); }
.footer-links a:hover { color: var(--accent); }

/* ─────────────────────────────────────────────────────────
   SCROLL REVEAL
   ───────────────────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─────────────────────────────────────────────────────────
   ANIMATIONS
   ───────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  :root { --section-px: 2.5rem; }
  .nav-links { gap: 1.8rem; }
}

@media (max-width: 700px) {
  :root {
    --section-px: 1.25rem;
    --section-py: 3.5rem;
    --nav-h: 58px;
  }

  /* Nav */
  .nav-links     { display: none; }
  .nav-cta       { display: none; }
  .nav-lang      { display: none; }
  .nav-hamburger { display: flex; }

  /* Landing */
  .landing-hero  { justify-content: flex-end; padding-bottom: 2.5rem; }
  .landing-ctas  { flex-direction: column; }
  .btn-primary,
  .btn-secondary { text-align: center; padding: 1rem; }
  .landing-strip { flex-direction: column; gap: 1rem; padding: 1.4rem var(--section-px); }

  /* Hero */
  .hero { min-height: 36vh; padding: 3rem var(--section-px) 2.5rem; }

  /* Intro strip */
  .intro-strip { flex-direction: column; gap: 2rem; padding: 2.5rem var(--section-px); }
  .stat-row    { justify-content: center; gap: 2rem; }

  /* Steps */
  .steps { flex-direction: column; gap: 1.2rem; }
  .step  { padding: 0; }
  .step:not(:last-child)::after { display: none; }

  /* Contact */
  .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row       { grid-template-columns: 1fr; }
  .map-embed iframe { height: 200px; }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr; gap: 1rem; }

  /* Lightbox */
  .lightbox-prev { left: .4rem; padding: .6rem .8rem; }
  .lightbox-next { right: .4rem; padding: .6rem .8rem; }

  /* Footer */
  footer { flex-direction: column; align-items: flex-start; gap: .8rem; }
}