/* ============================================================
   SIEBERT Consulting – Stylesheet
   CI-Farben aus Corporate Design:
   Hauptfarben:
     Warm Grey:   #cbc4bc
     Sky Blue:    #0077af
     Light Blue Grey: #cdd1d1
   Nebenfarben:
     Traffic Black: #000000
     Sand Grey:   #d4cfbd
     Gentle Blue: #7f97ae
     Smoothie Green: #909630
   ============================================================ */

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

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

body {
  font-family: Arial, Tahoma, Verdana, Helvetica, sans-serif;
  color: #000000;
  background: #ffffff;
  line-height: 1.65;
}

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

a { color: #0077af; text-decoration: none; }
a:hover { text-decoration: underline; }

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* TYPOGRAPHY */
h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; color: #ffffff; margin-bottom: 1rem; }
h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; color: #0077af; margin-bottom: 1.25rem; }
h3 { font-size: 1.2rem; font-weight: 700; color: #000000; margin-bottom: 0.75rem; }
p  { margin-bottom: 1rem; }
ul { padding-left: 1.25rem; margin-bottom: 1rem; }
ul li { margin-bottom: 0.4rem; }

.lead { font-size: 1.1rem; font-weight: 600; color: #000000; }

/* BUTTONS */
.btn-primary {
  display: inline-block;
  background: #0077af;
  color: #ffffff;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}
.btn-primary:hover { background: #005f8e; text-decoration: none; color: #fff; }

.btn-white {
  display: inline-block;
  background: #ffffff;
  color: #0077af;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid #ffffff;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn-white:hover { background: #cdd1d1; color: #000; text-decoration: none; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 3px solid #0077af;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo-img { height: 48px; width: auto; }
.logo-text { font-size: 1.2rem; font-weight: 700; color: #000000; letter-spacing: 0.03em; }
.logo-accent { color: #0077af; }

.main-nav { display: flex; gap: 2rem; }
.main-nav a { font-weight: 600; color: #000000; font-size: 0.95rem; transition: color 0.2s; }
.main-nav a:hover { color: #0077af; text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: #0077af;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: #ffffff;
  border-top: 1px solid #cdd1d1;
  padding: 0.5rem 2rem 1rem;
}
.mobile-nav a { padding: 0.5rem 0; font-weight: 600; color: #000; border-bottom: 1px solid #cdd1d1; }
.mobile-nav.open { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, #000000 0%, #0077af 100%);
  color: #ffffff;
  padding: 5rem 0 4rem;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-text { flex: 1 1 55%; }
.hero-image { flex: 1 1 45%; }
.hero-image img {
  border-radius: 8px;
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border: 4px solid rgba(255,255,255,0.2);
}

.hero-label {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #cdd1d1;
  margin-bottom: 0.5rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: #cbc4bc;
  margin-bottom: 2rem;
}

.hero-note {
  font-size: 0.85rem;
  color: #cdd1d1;
  margin-top: 0.75rem;
  margin-bottom: 0;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: 5rem 0; }
.section-light { background: #ffffff; }
.section-grey  { background: #f5f4f2; }
.section-blue  { background: #0077af; color: #ffffff; }
.section-blue h2 { color: #ffffff; }

.section-intro {
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 780px;
}

/* SECTION GRID (Über mich) */
.section-grid {
  display: flex;
  gap: 3rem;
  align-items: center;
}
.section-grid.reverse { flex-direction: row-reverse; }
.section-image { flex: 1 1 25%; }
.section-image img {
  border-radius: 8px;
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  box-shadow: 0 4px 20px rgba(0,119,175,0.15);
}
.section-text { flex: 1 1 58%; }

/* CARD GRID */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: #ffffff;
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
  border-top: 4px solid #0077af;
  display: flex;
  flex-direction: column;
}

.card-icon { margin-bottom: 1rem; }
.card-icon img { height: 100%; width: 100px; }

.card-sub { font-weight: 700; margin-top: 0.5rem; margin-bottom: 0.5rem; }

.card-result {
  margin-top: auto;
  padding-top: 1rem;
  font-weight: 700;
  color: #0077af;
  border-top: 1px solid #cdd1d1;
}

/* TERMIN */
.termin-inner {
  display: flex;
  gap: 3rem;
  align-items: center;
}
.termin-text { flex: 1 1 55%; }
.termin-text h2 { color: #ffffff; }
.termin-text p  { color: #e8f4fb; }
.termin-text .lead { color: #ffffff; }
.termin-image { flex: 1 1 40%; }
.termin-image img {
  border-radius: 8px;
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border: 4px solid rgba(255,255,255,0.25);
}

.termin-slogan {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 1.25rem;
  margin-bottom: 0;
}

/* KONTAKT */
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.kontakt-info p { margin-bottom: 1rem; }

.map-img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid #cdd1d1;
  margin-bottom: 0.5rem;
}
.map-caption { font-size: 0.85rem; color: #7f97ae; }

/* FORM */
.kontakt-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-weight: 600; font-size: 0.9rem; }

.form-row input[type="text"],
.form-row input[type="email"],
.form-row textarea {
  padding: 0.65rem 0.9rem;
  border: 1.5px solid #cdd1d1;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  background: #fafafa;
  color: #000;
  transition: border-color 0.2s;
}
.form-row input:focus,
.form-row textarea:focus {
  border-color: #0077af;
  outline: none;
  background: #fff;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  padding: 0.5rem 0;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 400;
  font-size: 0.95rem;
  cursor: pointer;
}
.checkbox-label input { width: 1rem; height: 1rem; accent-color: #0077af; }

.dsgvo { font-size: 0.85rem; color: #555; font-weight: 400; margin-top: 0.25rem; }

/* FOOTER */
.site-footer {
  background: #000000;
  color: #cbc4bc;
  padding: 1.5rem 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: #7f97ae; font-size: 0.9rem; }
.footer-links a:hover { color: #cdd1d1; }

/* ============================================================
   RESPONSIVE – Tablet (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { flex-direction: column; text-align: center; }
  .hero-image { max-width: 480px; margin: 0 auto; }
  .section-grid, .section-grid.reverse { flex-direction: column; }
  .section-image { max-width: 560px; margin: 0 auto; }
  .termin-inner { flex-direction: column; text-align: center; }
  .termin-image { max-width: 480px; margin: 0 auto; }
  .kontakt-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   RESPONSIVE – Mobile (max 720px)
   ============================================================ */
@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .section { padding: 3rem 0; }
  .card-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.3rem; }
}

/* ============================================================
   KONFERENZMONITOR / LARGE SCREEN (min 1600px)
   ============================================================ */
@media (min-width: 1600px) {
  .container { max-width: 1400px; }
  body { font-size: 18px; }
  .hero { padding: 7rem 0 6rem; }
  .section { padding: 7rem 0; }
}