/* ============================================================
   Athalis Solutions — Stylesheet
   Theme: Dark & Tech · Accent: Cyan → Blue
   ============================================================ */

:root {
  /* Palette */
  --bg:            #070b16;
  --bg-alt:        #0b1120;
  --surface:       #0f172a;
  --surface-2:     #131c33;
  --border:        rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.28);

  --text:          #e8edf7;
  --text-muted:    #93a1b8;

  --accent:        #22d3ee;
  --accent-2:      #3b82f6;
  --accent-3:      #6366f1;
  --accent-soft:   rgba(34, 211, 238, 0.12);

  --grad: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 100%);

  /* Type & layout */
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1140px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 60px -20px rgba(2, 6, 23, 0.75);
  --shadow-glow: 0 0 0 1px rgba(34, 211, 238, 0.25), 0 20px 60px -18px rgba(34, 211, 238, 0.35);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }

a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: #7deefb; }

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}
.container-narrow { max-width: 780px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #04121a;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #04121a;
  box-shadow: 0 10px 30px -10px rgba(34, 211, 238, 0.6);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -10px rgba(34, 211, 238, 0.75);
  color: #04121a;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 22, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  background: rgba(7, 11, 22, 0.9);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }
.brand-mark {
  color: var(--accent);
  font-size: 1.35rem;
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.6));
}
.brand-accent { color: var(--text-muted); font-weight: 600; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list a {
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.96rem;
  font-weight: 500;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-list a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav-cta {
  background: var(--accent-soft);
  color: var(--accent) !important;
  border: 1px solid rgba(34, 211, 238, 0.3);
}
.nav-cta:hover { background: rgba(34, 211, 238, 0.2) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin-inline: auto;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.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 {
  position: relative;
  padding: clamp(72px, 12vw, 150px) 0 clamp(60px, 9vw, 110px);
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 700px;
  max-width: 130%;
  background: radial-gradient(closest-side, rgba(34, 211, 238, 0.22), rgba(59, 130, 246, 0.12) 45%, transparent 72%);
  filter: blur(20px);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 78%);
  pointer-events: none;
}
.hero-inner { position: relative; text-align: center; max-width: 820px; margin-inline: auto; }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  margin-bottom: 22px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-badges {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.hero-badges li { color: var(--text-muted); }

/* ---------- Trust strip ---------- */
.trust {
  border-block: 1px solid var(--border);
  background: var(--bg-alt);
}
.trust-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-block: 40px;
  text-align: center;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 10vw, 120px) 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-lead { color: var(--text-muted); font-size: 1.08rem; }

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.5rem;
  margin-bottom: 18px;
  border: 1px solid rgba(34, 211, 238, 0.25);
}
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-muted); margin: 0; font-size: 0.98rem; }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.step-num {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--text-muted); margin: 0; font-size: 0.96rem; }

/* ---------- Split (Vorteile) ---------- */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.split-text .section-lead { margin-bottom: 24px; }
.check-list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding-left: 34px;
  color: var(--text);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid rgba(34, 211, 238, 0.3);
}

/* Split visual mockup */
.split-visual { display: grid; place-items: center; }
.glass-panel {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(180deg, rgba(19, 28, 51, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  box-shadow: var(--shadow-glow);
  overflow: hidden;
  transform: rotate(-1.5deg);
}
.panel-bar {
  display: flex;
  gap: 7px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.panel-bar span { width: 11px; height: 11px; border-radius: 50%; background: #33415a; }
.panel-bar span:first-child { background: #f87171; }
.panel-bar span:nth-child(2) { background: #fbbf24; }
.panel-bar span:nth-child(3) { background: #34d399; }
.panel-body { padding: 24px; display: grid; gap: 14px; }
.skeleton {
  height: 14px;
  border-radius: 7px;
  background: linear-gradient(90deg, rgba(148,163,184,0.14), rgba(148,163,184,0.06));
}
.skeleton-lg { height: 26px; width: 78%; background: var(--grad); opacity: 0.85; }
.skeleton-md { width: 92%; }
.skeleton-sm { width: 60%; }
.panel-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 6px; }
.skeleton-box {
  height: 62px;
  border-radius: 12px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border);
}
.panel-cta {
  margin-top: 8px;
  align-self: start;
  justify-self: start;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(34, 211, 238, 0.3);
}

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 14px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 22px;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.faq-item[open] { border-color: var(--border-strong); background: var(--surface-2); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 400;
  transition: transform 0.25s var(--ease);
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--text-muted); margin: 0 0 18px; }

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: clamp(28px, 5vw, 52px);
}
.contact-intro .section-lead { margin-bottom: 28px; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-ico {
  flex: none;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(34, 211, 238, 0.25);
}
.contact-label { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }

/* Form */
.contact-form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.field input,
.field textarea {
  width: 100%;
  padding: 13px 15px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder { color: #5c6b85; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}
.field-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.field-check input { margin-top: 3px; accent-color: var(--accent); width: 16px; height: 16px; flex: none; }
.form-note { margin: 4px 0 0; font-size: 0.92rem; min-height: 1.2em; }
.form-note.ok { color: #34d399; }
.form-note.err { color: #f87171; }

/* ---------- CTA banner ---------- */
.cta-banner {
  padding: clamp(56px, 8vw, 96px) 0;
  background:
    radial-gradient(closest-side at 50% 0%, rgba(34, 211, 238, 0.16), transparent 70%),
    var(--bg-alt);
  border-top: 1px solid var(--border);
}
.cta-inner { text-align: center; max-width: 640px; margin-inline: auto; }
.cta-inner h2 { margin-bottom: 10px; }
.cta-inner p { color: var(--text-muted); margin-bottom: 28px; font-size: 1.1rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg); border-top: 1px solid var(--border); padding-top: 56px; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 36px;
}
.footer-brand { max-width: 340px; }
.footer-brand p { color: var(--text-muted); margin-top: 12px; font-size: 0.95rem; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
.footer-nav a { color: var(--text-muted); font-size: 0.95rem; }
.footer-nav a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 0 32px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}
.footer-bottom p { margin: 0; }

/* ---------- Legal pages ---------- */
.legal { padding: clamp(56px, 9vw, 110px) 0; }
.legal h1 { font-size: clamp(2rem, 5vw, 2.8rem); margin-bottom: 24px; }
.legal h2 { font-size: 1.4rem; margin-top: 40px; }
.legal p, .legal li { color: var(--text-muted); }
.legal a { word-break: break-word; }
.legal .placeholder {
  background: rgba(251, 191, 36, 0.1);
  border: 1px dashed rgba(251, 191, 36, 0.5);
  color: #fbbf24;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.92em;
}
.back-link { display: inline-block; margin-bottom: 32px; font-weight: 600; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split-visual { order: -1; }
  .contact { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 720px) {
  .nav { position: fixed; inset: 72px 0 auto 0; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(11, 17, 32, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 22px;
    transform: translateY(-140%);
    transition: transform 0.35s var(--ease);
  }
  .nav-list.open { transform: translateY(0); }
  .nav-list a { padding: 12px 14px; font-size: 1.05rem; }
  .nav-cta { text-align: center; }
  .nav-toggle { display: flex; }

  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; }
}

/* ============================================================
   Moderne Effekte — performant (nur transform/opacity/paint,
   keine Libraries, GPU-beschleunigt)
   ============================================================ */

/* Scroll-Fortschrittsbalken */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 200;
  will-change: transform;
  pointer-events: none;
}

/* Sanft wandernde Verlaufs-Texte */
.grad-text,
.stat-num,
.step-num {
  background-size: 220% auto;
  animation: gradShift 8s ease infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 100% center; }
}

/* Rotierendes „Erstellungs"-Icon (Karte Website-Erstellung) */
.card-icon svg {
  transform-origin: 50% 50%;
  animation: spin 3.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Schwebendes Hero-Leuchten */
.hero-glow {
  animation: floatGlow 14s ease-in-out infinite;
  will-change: transform, opacity;
}
@keyframes floatGlow {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50%      { transform: translateX(-50%) translateY(24px); opacity: 0.82; }
}

/* Gestaffelte Einblendungen (Hero, Cards, Steps) */
.hero-inner .reveal:nth-child(1) { transition-delay: 0.02s; }
.hero-inner .reveal:nth-child(2) { transition-delay: 0.10s; }
.hero-inner .reveal:nth-child(3) { transition-delay: 0.18s; }
.hero-inner .reveal:nth-child(4) { transition-delay: 0.26s; }
.hero-inner .reveal:nth-child(5) { transition-delay: 0.34s; }
.cards .card:nth-child(2) { transition-delay: 0.07s; }
.cards .card:nth-child(3) { transition-delay: 0.14s; }
.cards .card:nth-child(5) { transition-delay: 0.07s; }
.cards .card:nth-child(6) { transition-delay: 0.14s; }
.steps .step:nth-child(2) { transition-delay: 0.08s; }
.steps .step:nth-child(3) { transition-delay: 0.16s; }
.steps .step:nth-child(4) { transition-delay: 0.24s; }

/* Glanz-Sweep über den Primär-Button beim Hover */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.38), transparent);
  transform: translateX(-180%) skewX(-20deg);
  transition: transform 0.7s var(--ease);
  pointer-events: none;
}
.btn-primary:hover::after { transform: translateX(320%) skewX(-20deg); }

/* ---------- Reduced motion: alle Bewegung deaktivieren ---------- */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card { transition: none; }
  .grad-text, .stat-num, .step-num,
  .card-icon svg, .hero-glow { animation: none !important; }
  .hero-inner .reveal, .cards .card, .steps .step { transition-delay: 0s !important; }
  .btn-primary::after { display: none; }
  .scroll-progress { display: none; }
}