/* ════════════════════════════════════════════════════════════
   GMS Holding Srl — Stylesheet
   ════════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --navy:   #182643;
  --gold:   #C9AB7F;
  --bg:     #F7F5F0;
  --text:   #111827;
  --muted:  #6B7280;
  --card:   #FFFFFF;
  --border: rgba(24, 38, 67, 0.12);

  --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
          'Helvetica Neue', Arial, 'Noto Sans', sans-serif,
          'Apple Color Emoji', 'Segoe UI Emoji';
  --header-h: 64px;
}

/* ── Reset / Base ──────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-h);
}

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

a {
  color: var(--navy);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover,
a:focus-visible {
  color: var(--gold);
}

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Header ────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.site-header.header-hidden {
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
}

.logo img {
  height: 36px;
  width: auto;
}

/* Navigation */
.nav-menu {
  display: flex;
  align-items: center;
  margin-left: auto;
}
.nav-menu ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
}

.nav-menu a {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav-menu a:hover,
.nav-menu a:focus-visible {
  border-bottom-color: var(--gold);
  color: var(--navy);
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  position: relative;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
  position: absolute;
  left: 5px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger {
  top: 50%;
  transform: translateY(-50%);
}
.hamburger::before {
  content: '';
  top: -7px;
}
.hamburger::after {
  content: '';
  top: 7px;
}

/* Active hamburger */
.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ── Language switch ───────────────────────────────────────── */
.lang-switch {
  margin-left: 1.75rem;
}
.lang-select {
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s ease;
}
.lang-select:hover,
.lang-select:focus-visible {
  border-color: var(--gold);
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  background: var(--navy) url('/assets/img/gms-holding-hero-desktop.jpg') center/cover no-repeat;
  color: #fff;
  padding: 5rem 0 4rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  max-width: 640px;
  margin: 0 auto 1rem;
  opacity: 0.92;
  line-height: 1.6;
}
.hero-microcopy {
  font-size: 0.95rem;
  color: var(--gold);
  margin-bottom: 2rem;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  text-align: center;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: #b89a6e;
  color: var(--navy);
}

/* ── Sections ──────────────────────────────────────────────── */
.section {
  padding: 4.5rem 0;
}
.section-alt {
  background: var(--card);
}
.section h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  color: var(--navy);
  margin-bottom: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.section-subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}
.section p + p {
  margin-top: 1rem;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
}
.card-logo {
  height: 25px;
  width: auto;
  margin-bottom: 1rem;
}
.card h3 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

/* ── Centered section titles ───────────────────────────────── */
.section-vm h2,
.section-alt#gruppo h2 {
  text-align: center;
}

/* ── Vision & Mission ──────────────────────────────────────── */
.section-vm {
  background: #EDE9E1;
}
.vm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}
.vm-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2.25rem 2rem;
}
.vm-box h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 1rem;
  font-weight: 600;
}
.vm-box p + p {
  margin-top: 0.75rem;
}

/* ── Invest grid ───────────────────────────────────────────── */
.invest-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.invest-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2.25rem 2rem;
}
.invest-card h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 1rem;
  font-weight: 600;
}
.invest-card p + p {
  margin-top: 0.75rem;
}

/* ── Invest synergy ────────────────────────────────────────── */
.invest-synergy {
  margin-top: 2.5rem;
}
.invest-synergy h3 {
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

/* ── Disclaimer ────────────────────────────────────────────── */
.disclaimer {
  margin-top: 3rem;
  padding: 1.5rem 2rem;
  background: var(--card);
  border-left: 4px solid var(--gold);
  border-radius: 4px;
}
.disclaimer h3 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.disclaimer p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Contact grid ──────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  margin-top: 2rem;
  align-items: start;
}
.contact-info p {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
.contact-info a {
  color: var(--navy);
  border-bottom: 1px solid var(--border);
}
.contact-info a:hover {
  border-bottom-color: var(--gold);
}

/* ── Form ──────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--navy);
}
.form-group label span {
  color: var(--gold);
}
.form-group label small {
  font-weight: 400;
  color: var(--muted);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font);
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 171, 127, 0.15);
}

.form-group input[type="file"] {
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--muted);
}

/* Honeypot */
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

/* Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.5;
}
.alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}
.alert-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 2rem 0;
  font-size: 0.85rem;
  line-height: 1.6;
}
.site-footer p + p {
  margin-top: 0.25rem;
}

/* ── Focus visible ─────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
  }
  .nav-menu.open {
    display: block;
  }
  .nav-menu ul {
    flex-direction: column;
    gap: 0;
    text-align: center;
  }
  .nav-menu li a {
    display: block;
    padding: 0.75rem 1.25rem;
    border-bottom: none;
  }
  .lang-switch {
    margin-left: auto;
  }
  .nav-toggle {
    margin-left: 0.75rem;
  }

  .vm-grid,
  .invest-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero {
    padding: 3.5rem 0 3rem;
    background-image: url('/assets/img/gms-holding-hero-mobile.jpg');
  }

  .section {
    padding: 3rem 0;
  }
}