/* =========================================================
   Generacer — fahle.gmbh
   Stylesheet · v1
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --color-bg:        #031402;
  --color-surface:   #0a1f08;
  --color-surface-2: #0f2a0c;
  --color-line:      rgba(199, 243, 196, 0.10);
  --color-line-soft: rgba(199, 243, 196, 0.06);

  --color-text:      #ecf0f1;
  --color-text-mute: #9bb59a;
  --color-mint:      #c7f3c4;
  --color-green:     #14500f;
  --color-green-2:   #366932;
  --color-bright:    #5bb954;

  --font-sans: "Montserrat", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --maxw:        1280px;
  --maxw-narrow: 760px;
  --gutter:      clamp(1.25rem, 4vw, 2.5rem);

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;

  --shadow-soft: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  --shadow-glow: 0 0 0 1px rgba(91,185,84,.35), 0 12px 40px rgba(91,185,84,.25);

  --t-fast: 160ms cubic-bezier(.2,.8,.2,1);
  --t:      280ms cubic-bezier(.2,.8,.2,1);
  --t-slow: 520ms cubic-bezier(.2,.8,.2,1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: clamp(1rem, .95rem + .15vw, 1.0625rem);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
a { color: var(--color-mint); text-decoration: none; transition: color var(--t-fast); }
a:hover, a:focus-visible { color: var(--color-bright); }
button { font: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.08;
  margin: 0 0 .5em;
}
h1 { font-weight: 900; }
p { margin: 0 0 1em; }

::selection { background: var(--color-bright); color: var(--color-bg); }

:focus-visible {
  outline: 2px solid var(--color-bright);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container.narrow { max-width: var(--maxw-narrow); }

.eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-bright);
  margin: 0 0 1.25rem;
}

.lead {
  font-size: clamp(1.05rem, 1rem + .3vw, 1.25rem);
  color: var(--color-text);
  max-width: 60ch;
}
.lead.narrow { margin-inline: auto; }

.section-title {
  font-size: clamp(1.85rem, 1.4rem + 2vw, 3.25rem);
}

.section { padding-block: clamp(4rem, 8vw, 7rem); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--color-bright);
  color: var(--color-bg);
  padding: .6em 1em;
  border-radius: var(--radius-sm);
  z-index: 100;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  padding-block: 1rem;
  transition: background-color var(--t), backdrop-filter var(--t), border-color var(--t);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(3, 20, 2, .82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--color-line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--color-text);
  font-weight: 800;
}
.brand-mark {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-bright);
  box-shadow: 0 0 0 4px rgba(91,185,84,.18);
}
.brand-name {
  letter-spacing: .18em;
  font-weight: 800;
  font-size: 1rem;
}

.primary-nav {
  display: flex;
  align-items: center;
}
.nav-list {
  list-style: none;
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  margin: 0; padding: 0;
}
.nav-list a {
  color: var(--color-text);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .02em;
  padding: .35em .25em;
  position: relative;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: .25em; right: .25em; bottom: .15em;
  height: 2px;
  background: var(--color-bright);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.nav-list a:hover::after,
.nav-list a:focus-visible::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
}
.nav-toggle-bar {
  position: absolute;
  left: 11px; right: 11px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--t), opacity var(--t-fast), top var(--t);
}
.nav-toggle-bar:nth-child(1) { top: 14px; }
.nav-toggle-bar:nth-child(2) { top: 21px; }
.nav-toggle-bar:nth-child(3) { top: 28px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: .95em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: .02em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), background-color var(--t), color var(--t), box-shadow var(--t), border-color var(--t);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-bright);
  color: var(--color-bg);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: #6dcc66;
  color: var(--color-bg);
  transform: translateY(-1px);
}
.btn-ghost {
  background: rgba(199,243,196,.05);
  color: var(--color-text);
  border-color: var(--color-line);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: rgba(199,243,196,.1);
  color: var(--color-text);
  border-color: var(--color-bright);
}
.btn-outline {
  background: transparent;
  color: var(--color-mint);
  border-color: var(--color-bright);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: var(--color-bright);
  color: var(--color-bg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  display: grid;
  align-items: center;
  isolation: isolate;
  padding-block: 6rem 4rem;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 60%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 50% 100%, rgba(3,20,2,.92) 0%, rgba(3,20,2,.6) 45%, rgba(3,20,2,.85) 100%),
    linear-gradient(180deg, rgba(3,20,2,.55) 0%, rgba(3,20,2,.05) 35%, rgba(3,20,2,.85) 100%);
}

.hero-content {
  max-width: 880px;
}
.hero-eyebrow {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--color-mint);
  opacity: .85;
  margin: 0 0 1.5rem;
}
.hero-title {
  font-size: clamp(2.6rem, 1.5rem + 5.5vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
  text-wrap: balance;
}
.hero-title-accent {
  background: linear-gradient(95deg, var(--color-bright), var(--color-mint));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.1rem, 1rem + .5vw, 1.4rem);
  max-width: 38ch;
  color: rgba(236,240,241,.92);
  margin: 0 0 2.25rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  width: 28px; height: 44px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  display: grid; place-items: center;
  opacity: .6;
  transition: opacity var(--t);
}
.hero-scroll:hover { opacity: 1; }
.hero-scroll span {
  width: 4px; height: 8px;
  background: var(--color-mint);
  border-radius: 2px;
  animation: scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot {
  0%   { transform: translateY(-6px); opacity: 0; }
  50%  { opacity: 1; }
  100% { transform: translateY(8px); opacity: 0; }
}

/* ---------- Sections ---------- */
.section-pitch { background: var(--color-bg); }
.section-pitch .lead { margin-bottom: 4rem; }

.feature-grid {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.feature {
  background: linear-gradient(180deg, rgba(199,243,196,.04), rgba(199,243,196,.01));
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: transform var(--t), border-color var(--t), background-color var(--t);
}
.feature:hover {
  transform: translateY(-2px);
  border-color: rgba(91,185,84,.4);
}
.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(91,185,84,.12);
  color: var(--color-bright);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.feature h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 .35em;
  letter-spacing: 0;
}
.feature p {
  font-size: .95rem;
  color: var(--color-text-mute);
  margin: 0;
}

/* Detail */
.section-detail {
  background:
    radial-gradient(80% 100% at 100% 0%, rgba(20,80,15,.4), transparent 70%),
    var(--color-surface);
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
.detail-text p { color: rgba(236,240,241,.88); }
.detail-text .disclaimer {
  font-size: .85rem;
  color: var(--color-text-mute);
  font-style: italic;
  margin-top: 1.5rem;
}
.detail-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
}
.detail-figure img { width: 100%; }

/* Options */
.section-options {
  background: var(--color-bg);
}
.section-options .lead { margin-bottom: 3rem; }
.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.option-card {
  background: linear-gradient(180deg, rgba(91,185,84,.07), rgba(91,185,84,.02));
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--t), border-color var(--t);
}
.option-card:hover {
  transform: translateY(-3px);
  border-color: rgba(91,185,84,.45);
}
.option-card h3 {
  font-size: 1.6rem;
  margin: 0;
}
.option-card p {
  color: rgba(236,240,241,.85);
  margin: 0;
  flex-grow: 1;
}
.option-card .btn { align-self: flex-start; margin-top: .5rem; }

/* ---------- Contact form ---------- */
.section-contact {
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(20,80,15,.45), transparent 60%),
    var(--color-surface-2);
}

.contact-form {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.field-label {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-mint);
}
.field-label .optional {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  color: var(--color-text-mute);
  margin-left: .25em;
}
.field input,
.field select,
.field textarea {
  font: inherit;
  color: var(--color-text);
  background: rgba(3,20,2,.55);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: .85em 1em;
  transition: border-color var(--t-fast), background-color var(--t-fast), box-shadow var(--t-fast);
}
.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: rgba(199,243,196,.2);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-bright);
  box-shadow: 0 0 0 3px rgba(91,185,84,.2);
  background: rgba(3,20,2,.75);
}
.field textarea { resize: vertical; min-height: 6rem; }
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%23c7f3c4' stroke-width='1.5' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 12px 8px;
  padding-right: 2.5rem;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.consent {
  font-size: .85rem;
  color: var(--color-text-mute);
  margin: .25rem 0 0;
  line-height: 1.5;
}

.form-submit { justify-self: start; margin-top: .5rem; }
.form-status {
  font-size: .95rem;
  margin: 0;
  min-height: 1.4em;
}
.form-status.is-success { color: var(--color-bright); }
.form-status.is-error   { color: #fd9080; }

/* ---------- Footer ---------- */
.site-footer {
  background: #020c01;
  border-top: 1px solid var(--color-line-soft);
  padding-block: 4rem 1.5rem;
  color: var(--color-text-mute);
  font-size: .9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.4fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand {
  font-size: 1.1rem;
  letter-spacing: .18em;
  color: var(--color-text);
  margin: 0 0 .75rem;
}
.footer-meta { color: var(--color-text-mute); margin: 0; line-height: 1.65; }
.footer-meta a { color: var(--color-text); }
.footer-title {
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-bright);
  font-weight: 700;
  margin: 0 0 .85rem;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.footer-links a { color: var(--color-text); }

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { margin: 0; }

/* ---------- Legal pages ---------- */
.legal-page { padding-top: 4rem; }
.legal-section {
  background: var(--color-bg);
  padding-block: clamp(3rem, 6vw, 5rem);
}
.legal-section + .legal-section { border-top: 1px solid var(--color-line-soft); }
.legal-section h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 2rem 0 .5rem;
  color: var(--color-mint);
}
.legal-section h3:first-of-type { margin-top: 1.75rem; }
.legal-section p {
  color: rgba(236,240,241,.85);
  max-width: 68ch;
  font-size: .98rem;
}
.legal-section .lead { margin-bottom: 2rem; }

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(.2,.8,.2,1);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-figure { order: -1; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav-list {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    gap: 0;
    padding: 1rem var(--gutter) 2rem;
    background: rgba(3, 20, 2, .96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-line-soft);
    transform: translateY(-110%);
    transition: transform var(--t);
  }
  .nav-list.is-open { transform: none; }
  .nav-list li { border-bottom: 1px solid var(--color-line-soft); }
  .nav-list li:last-child { border-bottom: 0; }
  .nav-list a {
    display: block;
    padding: 1rem .25em;
    font-size: 1.05rem;
  }
  .nav-list a::after { display: none; }
  .hero { min-height: 92svh; padding-block: 7rem 4rem; }
  .hero-actions .btn { flex: 1 1 auto; }
}