/* ============================================================================
   EDELGRAVUR.CH — Stylesheet
   ----------------------------------------------------------------------------
   Structure of this file:
     1. Design tokens (colours, fonts, spacing) — change the look here first
     2. Base / reset
     3. Layout helpers (.container, .section, buttons, headings)
     4. Header + navigation + language switcher
     5. Hero
     6. Content sections (intro, pillars, craft, steps, where, contact)
     7. Footer
     8. Responsive / mobile rules (at the bottom)
   The site is mobile-first: base styles target phones, and the media queries
   near the end scale things up for tablets and desktops.
   ============================================================================ */

/* 1. DESIGN TOKENS ---------------------------------------------------------- */
:root {
  /* Colour palette — warm, elegant, "boutique Swiss". Change these to re-skin. */
  --bg:        #f6f2ec;   /* warm ivory page background            */
  --bg-alt:    #efe8dd;   /* slightly darker band background       */
  --bg-dark:   #201d19;   /* charcoal (footer, hero fallback)      */
  --ink:       #211e19;   /* main text colour                      */
  --muted:     #6f685d;   /* secondary / supporting text           */
  --gold:      #b0894e;   /* accent (buttons, wordmark, eyebrows)  */
  --gold-dark: #957336;   /* accent hover                          */
  --line:      rgba(33, 30, 25, 0.14); /* hairline borders         */
  --white:     #ffffff;

  /* Typography — refined serif for headings, clean sans for body.
     If you removed the Google Fonts <link> in index.html, these fall back to
     good-looking system fonts automatically. */
  --font-head: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Jost", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* Layout */
  --maxw: 1160px;         /* max content width          */
  --gutter: clamp(1.25rem, 5vw, 3rem); /* side padding  */
}

/* 2. BASE / RESET ----------------------------------------------------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.0625rem;      /* ~17px */
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

/* Headings use the serif display face. */
h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: 0.01em;
}
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: 1.4rem; }

/* 3. LAYOUT HELPERS --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container.narrow { max-width: 780px; }  /* for centered text blocks */
.center { text-align: center; }

/* Vertical rhythm for every section. */
.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section-alt { background: var(--bg-alt); }

.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }

/* Small uppercase label above a heading (e.g. "The Service"). */
.eyebrow, .overline {
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-bottom: 1rem;
}

/* "lead" paragraphs are the larger supporting text under a heading. */
.lead { font-size: 1.15rem; color: var(--muted); margin-top: 1.4rem; }
h2 + .lead { margin-top: 1.4rem; }

/* Buttons ------------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.95rem 1.9rem;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.25s, color 0.25s, border-color 0.25s;
}
.btn-gold  { background: var(--gold); color: var(--white); }
.btn-gold:hover  { background: var(--gold-dark); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-small { padding: 0.6rem 1.1rem; font-size: 0.72rem; }

/* 4. HEADER / NAV ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 242, 236, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 72px;
}

/* Text wordmark logo. */
.wordmark {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  white-space: nowrap;
}
.wordmark-accent { color: var(--gold); }

/* Desktop navigation links. */
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  margin-left: auto;
}
.main-nav > a {
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  transition: color 0.2s;
}
.main-nav > a:hover { color: var(--gold); }
/* The button-style nav link ("Request a Visit"): gold background, white text. */
.nav-cta {
  background: var(--gold);
  color: var(--white) !important;
  border-color: var(--gold);
}
.nav-cta:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

/* Language switcher. */
.lang-switch { display: flex; gap: 0.15rem; }
.lang-switch button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 0.3rem 0.4rem;
  transition: color 0.2s;
}
.lang-switch button:hover { color: var(--ink); }
.lang-switch button.is-active { color: var(--gold); font-weight: 500; }

/* Hamburger toggle — hidden on desktop, shown on mobile. */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  display: block; height: 2px; width: 24px;
  background: var(--ink);
  transition: transform 0.3s, opacity 0.3s;
}

/* 5. HERO ------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  /* The charcoal colour shows if the photo is missing; the photo covers it. */
  background: var(--bg-dark) center / cover no-repeat;
  background-image: url("../assets/hero-knives-mountain.jpg");
  color: var(--white);
}
/* Dark gradient so the white text stays readable over any photo. */
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(20,17,14,0.35), rgba(20,17,14,0.65));
}
.hero-content { position: relative; max-width: 760px; }
.hero .overline { color: #e8d3a6; } /* warm gold on dark */
.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  margin-bottom: 1.4rem;
}
.hero-subline {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  max-width: 620px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

/* 6. CONTENT SECTIONS ------------------------------------------------------- */

/* Two pillars ------------------------------------------------ */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;   /* one column on mobile */
  gap: 1.75rem;
}
.pillar-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: clamp(2rem, 4vw, 3rem);
  overflow: hidden;
}
.pillar-num {
  font-family: var(--font-head);
  font-size: 3.5rem;
  color: var(--gold);
  opacity: 0.25;
  line-height: 1;
}
.pillar-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0.75rem 0 0.5rem;
}
.pillar-card h3 { margin-bottom: 0.9rem; font-size: 1.6rem; }
.pillar-card p  { color: var(--muted); }
.pillar-tags {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  font-weight: 400;
}

/* Craftsmanship (text + two photos) -------------------------- */
.craft-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
.craft-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.craft-images img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 3px;
  background: var(--bg-alt); /* placeholder tint before photo loads */
}
/* If a photo file is missing, onerror adds this class so it disappears tidily. */
.craft-images .img-missing { display: none; }

/* How it works (4 steps) ------------------------------------- */
.steps-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  counter-reset: step;
}
.step { padding-top: 1rem; border-top: 2px solid var(--gold); }
.step-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 0.6rem;
}
.step h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.step p  { color: var(--muted); font-size: 0.98rem; }

/* Where we work + Contact both use centered narrow text (styled by helpers). */
.section-where { background: var(--bg-alt); }

/* Contact details block ------------------------------------- */
.contact-details {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem;
  margin-top: 3rem;
}
.contact-item { display: flex; flex-direction: column; gap: 0.35rem; }
.contact-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}
.contact-value {
  font-family: var(--font-head);
  font-size: 1.35rem;
  color: var(--ink);
  transition: color 0.2s;
}
a.contact-value:hover { color: var(--gold); }

/* 7. FOOTER ----------------------------------------------------------------- */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.85);
  padding-block: 3.5rem;
}
.footer-wordmark { color: var(--white); font-size: 1.5rem; }
.footer-tagline {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.footer-contact { margin-top: 1.2rem; font-size: 0.95rem; }
.footer-contact a { color: rgba(255,255,255,0.85); }
.footer-contact a:hover { color: var(--gold); }
.footer-rights {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
}

/* 8. RESPONSIVE ------------------------------------------------------------- */

/* TABLET and up: two-column pillars & craft, four-column steps. */
@media (min-width: 720px) {
  .pillars-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid   { grid-template-columns: repeat(4, 1fr); }
  .craft-grid   { grid-template-columns: 1.05fr 0.95fr; }
}

/* DESKTOP: give the craft text a little more presence. */
@media (min-width: 960px) {
  .craft-grid { gap: 4rem; }
}

/* MOBILE navigation: collapse links into a dropdown panel behind the ☰ button.
   Below 900px the inline nav is hidden and toggled open by JavaScript. */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .main-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.25rem;
    /* Hidden by default; the ".open" class (added in JS) reveals it. */
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav > a {
    width: 100%;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .nav-cta { margin-top: 0.9rem; text-align: center; }

  /* Keep the language switch visible next to the wordmark on mobile. */
  .header-inner { flex-wrap: wrap; }
}

/* Respect users who prefer reduced motion. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}