/* ============================================================
   ZH Mathia Zimmerei & Holzbau — Stylesheet
   Corporate Design: Dunkelgrün #1a5c1a / Weiß / Warm-Grau
   ============================================================ */

:root {
  --green-dark:   #1a5c1a;
  --green-mid:    #237523;
  --green-light:  #2e8b2e;
  --green-pale:   #e8f3e8;
  --accent:       #d4870a;
  --accent-hover: #b8730a;
  --white:        #ffffff;
  --gray-light:   #f5f5f2;
  --gray-mid:     #e8e8e4;
  --gray-text:    #555550;
  --dark:         #1a1a18;
  --font-sans:    'Segoe UI', system-ui, -apple-system, sans-serif;
  --shadow-sm:    0 2px 8px rgba(0,0,0,.08);
  --shadow-md:    0 4px 20px rgba(0,0,0,.12);
  --shadow-lg:    0 8px 40px rgba(0,0,0,.16);
  --radius:       6px;
  --radius-lg:    12px;
  --max-width:    1160px;
  --transition:   .25s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--dark);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- Typography ---- */
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); font-weight: 600; }
p  { font-size: 1rem; }

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: .6rem;
}

.section-title { color: var(--dark); margin-bottom: 1rem; }
.section-intro  { color: var(--gray-text); font-size: 1.05rem; max-width: 620px; }

/* ---- Layout helpers ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section { padding-block: 5rem; }
.section--gray { background: var(--gray-light); }
.section--green { background: var(--green-dark); color: var(--white); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--green-dark);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 1rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--white);
  flex-shrink: 0;
}

.logo__img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  padding: 3px;
  object-fit: contain;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo__name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
}

.logo__sub {
  font-size: .72rem;
  color: rgba(255,255,255,.75);
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* Nav */
.main-nav { display: flex; align-items: center; gap: .25rem; }

.main-nav a {
  color: rgba(255,255,255,.88);
  font-size: .9rem;
  font-weight: 500;
  padding: .45rem .8rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  background: rgba(255,255,255,.15);
  color: var(--white);
}

.nav-cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  font-weight: 700 !important;
  padding: .5rem 1.1rem !important;
  border-radius: var(--radius) !important;
}

.nav-cta:hover { background: var(--accent-hover) !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
  border-radius: var(--radius);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--green-dark);
  padding: 1rem 1.25rem 1.5rem;
  border-top: 1px solid rgba(255,255,255,.15);
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  color: rgba(255,255,255,.9);
  font-size: 1rem;
  font-weight: 500;
  padding: .75rem .5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: color var(--transition);
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--white); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--green-dark) 0%, #0e3a0e 100%);
  overflow: hidden;
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      rgba(255,255,255,.02) 0,
      rgba(255,255,255,.02) 1px,
      transparent 1px,
      transparent 50%
    );
  background-size: 32px 32px;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  opacity: .55;
}

.hero__video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,40,10,.75) 0%, rgba(10,40,10,.55) 100%);
  z-index: 1;
}

.hero__content { position: relative; z-index: 2; }

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding-block: 5rem;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.92);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .4rem .9rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255,255,255,.2);
}

.hero__badge::before {
  content: '✦';
  color: var(--accent);
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.25rem;
}

.hero h1 span { color: var(--accent); }

.hero__sub {
  color: rgba(255,255,255,.82);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.5);
}

.btn--outline:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--white);
}

.btn--green {
  background: var(--green-dark);
  color: var(--white);
  border-color: var(--green-dark);
}

.btn--green:hover {
  background: var(--green-mid);
  border-color: var(--green-mid);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  background: var(--green-pale);
  border-bottom: 1px solid var(--gray-mid);
  padding-block: 1.25rem;
}

.trust-bar__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--green-dark);
}

.trust-item__icon {
  font-size: 1.3rem;
}

/* ============================================================
   ÜBER UNS
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.about__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: var(--green-dark);
  color: var(--white);
  padding: .75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: .9rem;
  box-shadow: var(--shadow-md);
}

.about__text .section-title { margin-bottom: 1.25rem; }

.about__text p {
  color: var(--gray-text);
  margin-bottom: 1rem;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
  background: var(--green-pale);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--gray-mid);
}

.stat__number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--green-dark);
  line-height: 1;
  margin-bottom: .25rem;
}

.stat__label {
  font-size: .8rem;
  color: var(--gray-text);
  font-weight: 600;
}

/* ============================================================
   LEISTUNGEN
   ============================================================ */
.services__header {
  text-align: center;
  margin-bottom: 3rem;
}

.services__header .section-intro { margin-inline: auto; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--green-dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-pale);
}

.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  color: var(--green-dark);
  margin-bottom: .6rem;
}

.service-card p {
  color: var(--gray-text);
  font-size: .95rem;
}

/* ============================================================
   REFERENZEN / GALERIE
   ============================================================ */
.gallery__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.gallery-item:hover img { transform: scale(1.06); }

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,40,10,.7) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.gallery-item:hover .gallery-item__overlay { opacity: 1; }

.gallery-item__label {
  color: var(--white);
  font-size: .85rem;
  font-weight: 600;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.lightbox.open { display: flex; }

.lightbox__inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__inner img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  object-fit: contain;
}

.lightbox__close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,.15);
  color: var(--white);
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.4rem;
  cursor: pointer;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__close:hover { background: rgba(255,255,255,.3); }

/* ============================================================
   ARBEITSWEISE
   ============================================================ */
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.process-step {
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -1rem;
  top: 2.5rem;
  font-size: 1.4rem;
  color: rgba(255,255,255,.4);
}

.process-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(255,255,255,.3);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
}

.process-step h3 {
  color: var(--white);
  margin-bottom: .5rem;
}

.process-step p {
  color: rgba(255,255,255,.75);
  font-size: .9rem;
}

/* ============================================================
   KONTAKT
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}

.contact__info h2 { margin-bottom: 1rem; }

.contact__info p {
  color: var(--gray-text);
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact-detail__icon {
  width: 42px;
  height: 42px;
  background: var(--green-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 1px solid var(--gray-mid);
}

.contact-detail__label {
  font-size: .8rem;
  color: var(--gray-text);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .15rem;
}

.contact-detail__value {
  font-weight: 600;
  color: var(--dark);
}

.contact-detail__value a:hover { color: var(--green-dark); }

/* Form */
.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-mid);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: .4rem;
}

.form-group label .req { color: var(--accent); }

.form-group input,
.form-group select,
.form-group textarea {
  padding: .7rem .9rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: .95rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-mid);
  box-shadow: 0 0 0 3px rgba(35,117,35,.12);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  margin-bottom: 1.5rem;
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: .15rem;
  accent-color: var(--green-dark);
  flex-shrink: 0;
  cursor: pointer;
}

.form-checkbox label {
  font-size: .85rem;
  color: var(--gray-text);
  line-height: 1.5;
  cursor: pointer;
}

.form-checkbox a { color: var(--green-dark); text-decoration: underline; }

/* Honeypot */
.hp-field { display: none !important; }

/* Feedback messages */
.form-msg {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 600;
  margin-top: 1rem;
  align-items: center;
  gap: .6rem;
}

.form-msg.success {
  display: flex;
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
}

.form-msg.error {
  display: flex;
  background: #fce4ec;
  color: #c62828;
  border: 1px solid #f48fb1;
}

.btn-submit {
  width: 100%;
  justify-content: center;
  padding: .9rem;
  font-size: 1rem;
}

.btn-submit:disabled {
  opacity: .65;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #0e3a0e;
  color: rgba(255,255,255,.8);
  padding-block: 3rem 2rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer__brand .logo { margin-bottom: 1rem; }

.footer__brand p {
  font-size: .9rem;
  color: rgba(255,255,255,.65);
  max-width: 280px;
}

.footer__col h4 {
  color: var(--white);
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 1rem;
}

.footer__col ul li { margin-bottom: .5rem; }

.footer__col ul a {
  color: rgba(255,255,255,.65);
  font-size: .9rem;
  transition: color var(--transition);
}

.footer__col ul a:hover { color: var(--white); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}

.footer__legal a {
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}

.footer__legal a:hover { color: var(--white); }
.footer__legal span { margin-inline: .5rem; }

/* ============================================================
   INNER PAGE (Impressum / Datenschutz)
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--green-dark), #0e3a0e);
  color: var(--white);
  padding-block: 4rem;
  text-align: center;
}

.page-hero h1 { color: var(--white); font-size: clamp(1.8rem, 4vw, 2.5rem); }
.page-hero p { color: rgba(255,255,255,.75); margin-top: .5rem; }

.legal-content {
  max-width: 800px;
  margin-inline: auto;
  padding-block: 4rem;
}

.legal-content h2 {
  font-size: 1.25rem;
  color: var(--green-dark);
  margin-top: 2.5rem;
  margin-bottom: .6rem;
  padding-bottom: .4rem;
  border-bottom: 2px solid var(--green-pale);
}

.legal-content h2:first-child { margin-top: 0; }

.legal-content p,
.legal-content ul {
  color: var(--gray-text);
  font-size: .95rem;
  margin-bottom: .75rem;
}

.legal-content ul { padding-left: 1.25rem; list-style: disc; }
.legal-content ul li { margin-bottom: .3rem; }

.legal-content a { color: var(--green-dark); text-decoration: underline; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--green-dark);
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 2.5rem;
  transition: gap var(--transition);
}

.back-link:hover { gap: .65rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about__grid       { gap: 2.5rem; }
  .process__grid     { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(2)::after { display: none; }
  .gallery__grid     { grid-template-columns: repeat(2, 1fr); }
  .footer__grid      { grid-template-columns: 1fr 1fr; }
  .footer__brand     { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .section { padding-block: 3.5rem; }

  /* Header */
  .main-nav { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  .hero { min-height: 480px; }
  .hero__content { padding-block: 3.5rem; }

  /* About */
  .about__grid { grid-template-columns: 1fr; }
  .about__img-wrap { order: -1; }
  .about__stats { grid-template-columns: repeat(3, 1fr); }

  /* Contact */
  .contact__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row      { grid-template-columns: 1fr; }

  /* Gallery */
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }

  /* Process */
  .process__grid { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__brand { grid-column: auto; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.9rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .gallery__grid  { grid-template-columns: 1fr; }
  .process__grid  { grid-template-columns: 1fr; }
  .process-step::after { display: none !important; }
  .about__stats   { grid-template-columns: 1fr 1fr; }
  .contact-form   { padding: 1.5rem; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .trust-bar__inner { gap: 1.25rem; }
}