/* ============================================================
   athomic.arts mediadesign – Hauptstylesheet
   ============================================================ */

:root {
  --gold:       #00c5e0;
  --gold-light: #33d4eb;
  --gold-dim:   rgba(0,197,224,.15);
  --dark:       #000000;
  --dark-2:     #2e2e2e;
  --dark-3:     #1a1a1a;
  --text:       #f5f5f5;
  --muted:      #888;
  --radius:     8px;
  --transition: .4s cubic-bezier(.25,.8,.25,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--dark);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

/* ── Navigation ───────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 2rem;
  transition: background var(--transition), box-shadow var(--transition);
}
nav.scrolled {
  background: rgba(14,14,14,.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.6);
}
.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold);
  text-decoration: none;
}
.nav-logo span { color: var(--text); font-weight: 300; }
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 420px;
  padding: 7rem 2rem 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 40%, #001a1f 0%, #000000 70%);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 60%,
    var(--dark) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 1.5rem;
}
.hero-tagline {
  font-size: .75rem;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp .8s .3s forwards;
}
.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 300;
  letter-spacing: .04em;
  line-height: 1.15;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp .8s .6s forwards;
}
.hero-title strong {
  display: block;
  font-weight: 700;
  color: var(--gold);
}
.hero-sub {
  font-size: clamp(.95rem, 2vw, 1.15rem);
  color: rgba(232,232,232,.7);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  font-style: italic;
  opacity: 0;
  animation: fadeUp .8s .9s forwards;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp .8s 1.2s forwards;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.8rem;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--gold);
  color: #0e0e0e;
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(201,168,76,.35);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(232,232,232,.3);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-gold-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
  width: 100%;
  justify-content: center;
  margin-top: 1.5rem;
  font-size: .8rem;
}
.btn-gold-outline:hover {
  background: var(--gold);
  color: #0e0e0e;
}

/* ── Sections ─────────────────────────────────────────────── */
section {
  padding: 7rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-size: .7rem;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .75rem;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-title strong { font-weight: 700; }
.section-divider {
  width: 50px;
  height: 2px;
  background: var(--gold);
  margin: 1.5rem 0 2.5rem;
}
.section-text {
  color: var(--muted);
  max-width: 600px;
  font-size: 1rem;
  line-height: 1.8;
}

/* ── About strip ──────────────────────────────────────────── */
#about {
  background: var(--dark-2);
  max-width: 100%;
  padding: 5rem 2rem;
}
.about-inner {
  max-width: 800px;
  margin: 0 auto;
}
.about-img-wrap {
  position: relative;
}
.about-img-wrap::before {
  content: '';
  position: absolute;
  inset: -10px -10px 10px 10px;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  opacity: .4;
}
.about-img-wrap img {
  width: 100%;
  border-radius: var(--radius);
  display: block;
  filter: grayscale(20%);
  transition: filter var(--transition);
}
.about-img-wrap img:hover { filter: grayscale(0); }
.about-text .section-text { max-width: 100%; }
.about-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
}
.stat { text-align: center; }
.stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  display: block;
}
.stat-label {
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Portfolio ────────────────────────────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.portfolio-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--dark-3);
  cursor: pointer;
  text-decoration: none;
  display: block;
}
.portfolio-card-img {
  position: absolute;
  inset: 0;
  background: center/cover no-repeat;
  transition: transform .6s cubic-bezier(.25,.8,.25,1);
}
.portfolio-card:hover .portfolio-card-img { transform: scale(1.06); }
.portfolio-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, rgba(0,0,0,.1) 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-card:hover .portfolio-card-overlay { opacity: 1; }
.portfolio-card-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.5rem;
  transform: translateY(8px);
  transition: transform var(--transition);
}
.portfolio-card:hover .portfolio-card-info { transform: translateY(0); }
.portfolio-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: .25rem;
}
.portfolio-card-meta {
  font-size: .75rem;
  color: var(--gold);
  letter-spacing: .1em;
  text-transform: uppercase;
}
/* Placeholder card */
.portfolio-card-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  border: 2px dashed rgba(201,168,76,.3);
  color: var(--muted);
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: border-color var(--transition), color var(--transition);
  text-decoration: none;
}
.portfolio-card-placeholder:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.portfolio-card-placeholder .plus {
  font-size: 2rem;
  color: rgba(201,168,76,.4);
}

/* ── Kundenbereich ────────────────────────────────────────── */
#kundenbereich {
  background: var(--dark-2);
  max-width: 100%;
  padding: 7rem 2rem;
}
.kb-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.kb-visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.kb-card {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition);
}
.kb-card:hover {
  border-color: var(--gold-dim);
  transform: translateX(6px);
}
.kb-card-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}
.kb-card-label {
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gold);
}
.kb-card-text {
  font-size: .9rem;
  color: var(--muted);
  margin-top: .2rem;
}
.kb-form {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 2.5rem;
}
.kb-form-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: .5rem;
}
.kb-form-sub {
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}
.kb-input-wrap { position: relative; }
.kb-input {
  width: 100%;
  background: var(--dark-2);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  color: var(--text);
  font-size: 1rem;
  letter-spacing: .05em;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.kb-input::placeholder { color: var(--muted); }
.kb-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,.15);
}
.kb-btn {
  width: 100%;
  margin-top: 1rem;
  padding: 1rem;
  background: var(--gold);
  color: #0e0e0e;
  border: none;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.kb-btn:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(201,168,76,.3);
}
.kb-error {
  margin-top: .75rem;
  font-size: .82rem;
  color: #e57373;
  display: none;
}
.kb-error.visible { display: block; }
.kb-hint {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--gold-dim);
  border-radius: var(--radius);
  border-left: 3px solid var(--gold);
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.6;
}
.kb-hint strong { color: var(--gold); }

/* ── Kontakt ──────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.contact-card {
  background: var(--dark-3);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: block;
}
.contact-card:hover {
  border-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,.4);
}
.contact-card-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.contact-card-type {
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .5rem;
}
.contact-card-value {
  font-size: .95rem;
  color: var(--text);
  word-break: break-all;
}
.contact-note {
  text-align: center;
  margin-top: 3rem;
  color: var(--muted);
  font-size: .9rem;
  font-style: italic;
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  background: #000000;
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 3rem 2rem;
  text-align: center;
}
.footer-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold);
  margin-bottom: .5rem;
}
.footer-logo span { color: var(--muted); font-weight: 300; }
.footer-tagline {
  font-size: .85rem;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 1.5rem;
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  list-style: none;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--gold); }
.footer-copy {
  font-size: .75rem;
  color: rgba(136,136,136,.5);
}

/* ── Animationen (Scroll-Reveal) ──────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
  from { opacity: 0; transform: translateY(24px); }
}
@keyframes fadeIn {
  to { opacity: 1; }
  from { opacity: 0; }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-inner,
  .kb-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-img-wrap { display: none; } /* Logo im Banner reicht auf Mobile */
}
@media (max-width: 640px) {
  nav { padding: .8rem 1.2rem; }
  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(14,14,14,.98);
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 99;
  }
  .nav-links.open a { padding: 1rem 0; font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 101; }
  section { padding: 4rem 1.25rem; }
  .about-stats { gap: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
}