/* ============================================
   Heibel-ITS – Microsoft 365 Landing Pages
   Gemeinsames Stylesheet
   ============================================ */

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

:root {
  --primary: #0078D4;
  --primary-dark: #005a9e;
  --primary-light: #e8f4fd;
  --accent: #FFB900;
  --accent-hover: #e6a700;
  --text: #2b2b2b;
  --text-light: #555;
  --text-muted: #777;
  --bg: #ffffff;
  --bg-alt: #f7f9fc;
  --bg-dark: #1a1a2e;
  --bg-footer: #111827;
  --border: #e0e0e0;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --transition: 0.3s ease;
  --max-width: 1140px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

ul, ol {
  list-style: none;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2rem;
}

.text-center {
  text-align: center;
}

/* --- Header / Navbar --- */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.logo-link img {
  height: 44px;
  width: auto;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header-phone {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary);
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--primary-dark);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-accent {
  background: var(--accent);
  color: var(--text);
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-white {
  background: #fff;
  color: var(--primary);
}

.btn-white:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.1rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
  color: #fff;
  padding: 3.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.hero .highlight {
  color: var(--accent);
}

.hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 1.5rem;
}

.hero-badges {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.microsoft-badge {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.9);
}

.microsoft-badge img {
  height: 22px;
  width: auto;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-height: 340px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Sections --- */
section {
  padding: 3.5rem 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* --- Pain Points --- */
.pain-points {
  background: var(--bg-alt);
}

.pain-list {
  max-width: 720px;
  margin: 0 auto;
}

.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.pain-item:last-child {
  border-bottom: none;
}

.pain-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: #fde8e8;
  color: #c0392b;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 2px;
}

.pain-item p {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
}

/* --- Solution Section --- */
.solution-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.solution-text p {
  font-size: 1.05rem;
}

.solution-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  max-height: 320px;
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* --- Steps / Process --- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
}

.step-content h3 {
  margin-bottom: 0.25rem;
}

.step-content p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* --- FAQ --- */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: var(--bg);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  font-family: var(--font);
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--bg-alt);
}

.faq-question::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.active .faq-question::after {
  content: "−";
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 1.25rem 1rem;
  font-size: 0.95rem;
  color: var(--text-light);
}

/* --- Trust / Why Us --- */
.trust-section {
  background: var(--bg-alt);
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.trust-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.trust-item h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.trust-item p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- Final CTA --- */
.final-cta {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
  color: #fff;
  padding: 3.5rem 0;
}

.final-cta h2 {
  color: #fff;
}

.final-cta p {
  color: rgba(255,255,255,0.85);
}

.cta-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.cta-direct {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cta-direct .cta-method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.cta-method-icon {
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
  flex-shrink: 0;
}

.cta-method-text a {
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem;
}

.cta-method-text a:hover {
  color: var(--accent);
}

.cta-method-text span {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

/* --- Contact Form --- */
.contact-form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.contact-form h3 {
  color: #fff;
  margin-bottom: 1rem;
  font-size: 1.15rem;
}

.form-group {
  margin-bottom: 0.85rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 0.3rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.4);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255,255,255,0.12);
}

.form-group textarea {
  min-height: 90px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.form-consent {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.form-consent a {
  color: rgba(255,255,255,0.75);
  text-decoration: underline;
}

.form-consent a:hover {
  color: #fff;
}

.form-success {
  display: none;
  background: #e8f5e9;
  color: #2e7d32;
  padding: 1rem;
  border-radius: var(--radius);
  text-align: center;
  font-weight: 600;
}

.form-success.visible {
  display: block;
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-footer);
  color: rgba(255,255,255,0.7);
  padding: 2rem 0 1rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.footer-col p,
.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  line-height: 1.8;
}

.footer-col a:hover {
  color: #fff;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

/* --- Hub Page Specific --- */
.hub-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.hub-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text);
  display: block;
}

.hub-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  color: var(--text);
}

.hub-card-img {
  height: 180px;
  overflow: hidden;
}

.hub-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hub-card-body {
  padding: 1.25rem;
}

.hub-card-body h3 {
  color: var(--primary);
  margin-bottom: 0.4rem;
}

.hub-card-body p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* --- Responsive: Tablet --- */
@media (min-width: 600px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hub-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .steps {
    gap: 2rem;
  }
}

/* --- Responsive: Desktop --- */
@media (min-width: 900px) {
  .hero {
    padding: 4.5rem 0 4rem;
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  section {
    padding: 4.5rem 0;
  }

  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .solution-content {
    grid-template-columns: 1fr 1fr;
  }

  .cta-contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .hub-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1100px) {
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }