/* =========================================================
   ESA Entsorgungsservice ALBA — Stylesheet
   ========================================================= */

:root {
  --color-bg: #F5F4EF;
  --color-bg-alt: #EAE8DE;
  --color-ink: #20241F;
  --color-ink-soft: #4A4F47;
  --color-primary: #1E3A2B;
  --color-primary-light: #3E6E56;
  --color-accent: #C68A2E;
  --color-accent-dark: #A9721E;
  --color-border: #DBD8CB;
  --color-border-strong: #C6C2B2;
  --color-white: #FFFFFF;

  --font-head: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', Arial, sans-serif;

  --max-width: 1180px;
  --radius-sm: 4px;
  --transition: 180ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, dl { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-head); margin: 0; color: var(--color-primary); line-height: 1.15; }
p { margin: 0 0 1em; max-width: 64ch; }
button { font-family: inherit; cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-ghost:hover { background: var(--color-primary); color: var(--color-white); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 244, 239, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 14px rgba(32, 36, 31, 0.08); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}

.logo { display: flex; align-items: center; gap: 10px; color: var(--color-primary); }
.logo-mark { color: var(--color-primary); display: inline-flex; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-family: var(--font-head); font-size: 1.15rem; letter-spacing: 0.02em; }
.logo-text small { font-size: 0.68rem; color: var(--color-ink-soft); font-weight: 500; }

.main-nav { display: flex; gap: 32px; }
.main-nav a {
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--color-ink);
  position: relative;
  padding: 4px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transition: right var(--transition);
}
.main-nav a:hover::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: none;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { background: var(--color-bg); overflow: hidden; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  padding-top: 76px;
  padding-bottom: 64px;
}
.hero-copy h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  max-width: 14ch;
  opacity: 0;
  animation: rise 700ms ease forwards;
}
.hero-lede {
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
  opacity: 0;
  animation: rise 700ms ease 120ms forwards;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 12px;
  opacity: 0;
  animation: rise 700ms ease 220ms forwards;
}
.hero-visual {
  opacity: 0;
  animation: rise 800ms ease 200ms forwards;
}
.hero-svg { color: var(--color-primary); }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.stat-strip {
  background: var(--color-primary);
  color: var(--color-white);
}
.stat-strip-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.stat {
  padding: 26px 24px;
  border-left: 1px solid rgba(255,255,255,0.14);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat:first-child { border-left: none; }
.stat-num, .stat-num-text {
  font-family: var(--font-head);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-accent);
}
.stat-label { font-size: 0.88rem; color: rgba(255,255,255,0.82); }

/* ---------- Section head ---------- */
.section-head { margin-bottom: 40px; max-width: 60ch; }
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-bottom: 10px;
}
.section-head p { color: var(--color-ink-soft); margin-bottom: 0; }
.section-head-light h2 { color: var(--color-white); }
.section-head-light p { color: rgba(255,255,255,0.75); }

/* ---------- About ---------- */
.about { padding: 88px 0; }
.about-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.about-media { border: 1px solid var(--color-border); }
.fact-list { margin-top: 24px; border-top: 1px solid var(--color-border); }
.fact-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 0.96rem;
}
.fact-list li span {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 160px;
}
.fact-list a { color: var(--color-primary-light); font-weight: 600; }
.fact-list a:hover { text-decoration: underline; }

/* ---------- Services ---------- */
.services { padding: 88px 0; background: var(--color-bg-alt); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--color-border-strong);
  border-left: 1px solid var(--color-border-strong);
}
.service-item {
  padding: 32px 32px 32px 0;
  margin-left: 32px;
  border-right: 1px solid var(--color-border-strong);
  border-bottom: 1px solid var(--color-border-strong);
  transition: background var(--transition);
}
.service-item:hover { background: rgba(255,255,255,0.5); }
.service-icon { color: var(--color-primary-light); width: 40px; height: 40px; margin-bottom: 14px; }
.service-item h3 { font-size: 1.12rem; margin-bottom: 8px; }
.service-item p { color: var(--color-ink-soft); font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Why Us ---------- */
.why-us { padding: 88px 0; background: var(--color-primary); color: var(--color-white); }
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px 32px;
}
.benefit { display: flex; gap: 16px; align-items: flex-start; }
.benefit svg { width: 30px; height: 30px; flex-shrink: 0; color: var(--color-accent); margin-top: 2px; }
.benefit h3 { color: var(--color-white); font-size: 1.05rem; margin-bottom: 6px; }
.benefit p { color: rgba(255,255,255,0.75); font-size: 0.93rem; margin-bottom: 0; }

/* ---------- Contact ---------- */
.contact { padding: 88px 0; }
.contact-inner {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { margin-bottom: 18px; display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-weight: 600; font-size: 0.9rem; color: var(--color-primary); }
.form-field .optional { font-weight: 400; color: var(--color-ink-soft); }
.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 0.97rem;
  padding: 11px 13px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-ink);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(62, 110, 86, 0.15);
  outline: none;
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea { border-color: #B3402D; }
.field-error {
  font-size: 0.82rem;
  color: #B3402D;
  min-height: 1.1em;
}
.form-status { margin-top: 16px; font-weight: 600; font-size: 0.95rem; }
.form-status.success { color: var(--color-primary-light); }
.form-status.error { color: #B3402D; }

.contact-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 28px;
}
.contact-card h3 { font-size: 1.1rem; margin-bottom: 18px; }
.contact-card dl div {
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
}
.contact-card dl div:first-of-type { border-top: none; padding-top: 0; }
.contact-card dt { font-size: 0.78rem; color: var(--color-ink-soft); margin-bottom: 3px; }
.contact-card dd { margin: 0; font-weight: 600; }
.contact-card a { color: var(--color-primary-light); }
.contact-card a:hover { text-decoration: underline; }

.map-placeholder {
  margin-top: 20px;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.map-label {
  position: absolute;
  left: 14px;
  bottom: 12px;
  background: var(--color-white);
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--color-border);
}

/* ---------- Footer ---------- */
.site-footer { background: #14261C; color: rgba(255,255,255,0.85); padding-top: 64px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-brand .logo-text strong { color: var(--color-white); }
.footer-brand .logo-text small { color: rgba(255,255,255,0.6); }
.footer-brand p { color: rgba(255,255,255,0.65); font-size: 0.92rem; margin-top: 6px; }
.footer-col h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}
.footer-col a, .footer-col span { color: rgba(255,255,255,0.7); font-size: 0.92rem; }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom { padding: 22px 24px; }
.footer-bottom p { margin: 0; font-size: 0.85rem; color: rgba(255,255,255,0.55); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 40px; }
  .hero-visual { order: -1; max-width: 340px; margin: 0 auto; }
  .about-inner { grid-template-columns: 1fr; }
  .about-media { order: -1; max-width: 420px; margin: 0 auto; }
  .contact-inner { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav { position: fixed; top: 76px; left: 0; right: 0; background: var(--color-bg); flex-direction: column; gap: 0; border-bottom: 1px solid var(--color-border); max-height: 0; overflow: hidden; transition: max-height var(--transition); }
  .main-nav.open { max-height: 260px; }
  .main-nav a { padding: 14px 24px; border-bottom: 1px solid var(--color-border); }
  .header-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; }
  .stat-strip-inner { grid-template-columns: 1fr; }
  .stat { border-left: none; border-top: 1px solid rgba(255,255,255,0.14); }
  .stat:first-child { border-top: none; }
  .service-grid { grid-template-columns: 1fr; }
  .service-item { margin-left: 0; padding-left: 24px; padding-right: 24px; border-left: none; }
  .benefit-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}