/*
Theme Name: ATND Modern
Theme URI: https://www.atnd.de
Author: Claude Code
Author URI: https://claude.ai
Description: A modern WordPress theme inspired by atnd.de — clean, responsive, with smooth animations and a fresh visual identity.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: atnd-modern
Tags: one-column, custom-menu, custom-logo, translation-ready, blog
*/

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
  --color-primary: #1a56db;
  --color-primary-dark: #0f3a8e;
  --color-primary-light: #3b82f6;
  --color-accent: #06b6d4;
  --color-gradient-start: #0f172a;
  --color-gradient-mid: #1e3a5f;
  --color-gradient-end: #1a56db;

  --color-bg: #f8fafc;
  --color-bg-alt: #ffffff;
  --color-bg-section: #f1f5f9;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #ffffff;

  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-xl: 32px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s ease, transform 0.2s ease;
}

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

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

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-text);
}

p {
  margin-bottom: var(--spacing-sm);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ============================================
   NAVIGATION
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.navbar-brand .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  list-style: none;
}

.navbar-menu a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.938rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all 0.25s ease;
}

.navbar-menu a:hover {
  color: var(--color-primary);
  background: rgba(26, 86, 219, 0.06);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--color-gradient-start) 0%, var(--color-gradient-mid) 40%, var(--color-gradient-end) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 400px 600px at 80% 30%, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xl) var(--spacing-md);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 16px;
  border-radius: var(--border-radius-xl);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--spacing-md);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.5); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -1.5px;
  line-height: 1.1;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #60a5fa, #06b6d4, #22c55e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .slogan {
  font-size: clamp(1.1rem, 2.5vw, 1.375rem);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  color: white;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
  color: white;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: white;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
  color: white;
  transform: translateY(-2px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ============================================
   SECTIONS (About, Services, Contact)
   ============================================ */
.section {
  padding: var(--spacing-2xl) 0;
}

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--color-primary);
  background: rgba(26, 86, 219, 0.08);
  padding: 4px 14px;
  border-radius: var(--border-radius-xl);
  margin-bottom: var(--spacing-sm);
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* ============================================
   ABOUT / INFO CARDS
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.info-card {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.35s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(26, 86, 219, 0.1);
}

.info-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.icon-blue {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: var(--color-primary);
}

.icon-cyan {
  background: linear-gradient(135deg, #cffafe, #a7f3d0);
  color: #059669;
}

.icon-purple {
  background: linear-gradient(135deg, #ede9fe, #ddd6fe);
  color: #7c3aed;
}

.info-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.info-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ============================================
   ABOUT TEXT BLOCK
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-text h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.stat-card {
  background: linear-gradient(135deg, rgba(26, 86, 219, 0.04), rgba(6, 182, 212, 0.04));
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-sm);
  text-align: center;
  border: 1px solid rgba(26, 86, 219, 0.08);
}

.stat-card .number {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   REMOTE SUPPORT SECTION
   ============================================ */
.remote-support {
  background: linear-gradient(160deg, var(--color-gradient-start), var(--color-gradient-mid));
  color: white;
  position: relative;
  overflow: hidden;
}

.remote-support::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 500px 400px at 90% 50%, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
}

.remote-support .container {
  position: relative;
  z-index: 2;
}

.remote-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.remote-content h2 {
  color: white;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-sm);
}

.remote-content p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
}

.remote-steps {
  list-style: none;
  margin: var(--spacing-md) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.remote-steps li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
}

.step-number {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.remote-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.remote-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  backdrop-filter: blur(8px);
  max-width: 380px;
}

.remote-card-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-sm);
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(26, 86, 219, 0.2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.remote-card h3 {
  color: white;
  margin-bottom: var(--spacing-xs);
}

.remote-card p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--border-radius-md);
  background: linear-gradient(135deg, rgba(26, 86, 219, 0.06), rgba(6, 182, 212, 0.06));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-item h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.contact-item p, .contact-item a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.contact-form {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.contact-form h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1.3rem;
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all 0.25s ease;
  background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
  background: white;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26, 86, 219, 0.3);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-gradient-start);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-brand .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links h4 {
  color: white;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--spacing-sm);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: all 0.25s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer-bottom p {
  font-size: 0.85rem;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.4);
}

.footer-legal {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ============================================
   ANIMATIONS (Scroll reveal)
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.stagger-children .reveal:nth-child(1) { transition-delay: 0.05s; }
.stagger-children .reveal:nth-child(2) { transition-delay: 0.15s; }
.stagger-children .reveal:nth-child(3) { transition-delay: 0.25s; }
.stagger-children .reveal:nth-child(4) { transition-delay: 0.35s; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
  .about-content,
  .remote-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .hero h1 {
    font-size: clamp(2rem, 7vw, 3rem);
  }
}

@media (max-width: 768px) {
  .navbar-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: stretch;
    padding: 80px 24px 24px;
    gap: 4px;
    box-shadow: var(--shadow-xl);
    transition: right 0.35s ease;
  }

  .navbar-menu.open {
    right: 0;
  }

  .navbar-menu a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--border-radius-sm);
  }

  .navbar-toggle {
    display: flex;
    z-index: 1001;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   MOBILE OVERLAY
   ============================================ */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
}

.nav-overlay.active {
  display: block;
}

/* ============================================
   WORDPRESS COMPATIBILITY
   ============================================ */
.wp-block-separator {
  border-color: rgba(0, 0, 0, 0.08);
}

.entry-content p {
  margin-bottom: var(--spacing-sm);
}

.alignfull {
  width: 100vw;
  max-width: 100%;
  margin-left: calc(-50vw + 50%);
}

/* Page title area */
.page-header {
  display: none; /* Not needed for front-page layout */
}