/* =========================================================================
   Die Ergoburg - Premium Stylesheet
   ========================================================================= */

/* --- Fonts & CSS Variables --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Inter:wght@300;400;500&display=swap');

:root {
  /* Colors - Premium Therapy Theme */
  --clr-primary: #798D80;     /* Calm Sage Green */
  --clr-primary-light: #A4B5A9;
  --clr-primary-dark: #4B5A50;
  --clr-accent: #C2A878;      /* Warm Earthy Gold/Beige */
  --clr-accent-light: #E1D6C3;
  --clr-bg-main: #FAFAFA;     /* Soft Off-White */
  --clr-bg-alt: #F2F1ED;      /* Softer earthy grey for alternating sections */
  
  --clr-text-main: #333333;
  --clr-text-muted: #666666;
  --clr-white: #FFFFFF;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout & Spacing */
  --max-width: 1200px;
  --header-height: 80px;
  --border-radius: 12px;
  --border-radius-lg: 24px;
  --spacing-section: 6rem;
  --spacing-section-mobile: 4rem;

  /* Shadows & Glassmorphism */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: 1px solid rgba(255, 255, 255, 0.3);

  /* Animations */
  --transition-fast: 0.2s ease-in-out;
  --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  font-family: var(--font-body);
  color: var(--clr-text-main);
  background-color: var(--clr-bg-main);
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  line-height: 1.6;
  font-size: 1.125rem;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--clr-primary-dark);
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; letter-spacing: -0.01em; margin-bottom: 2rem; position: relative; }
h3 { font-size: 1.75rem; }

.text-accent { color: var(--clr-accent); }
.text-center { text-align: center; }

/* Section Heading decorative line */
h2.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--clr-accent);
  margin-top: 1rem;
  border-radius: 2px;
}
h2.section-title.center::after {
  margin-left: auto;
  margin-right: auto;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 500;
  padding: 1rem 2rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover {
  background-color: var(--clr-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
  background-color: #A99364;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--clr-primary);
  color: var(--clr-white);
}

/* --- Header & Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-slow);
  background: transparent;
}

.header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  border-bottom: var(--glass-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-primary-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--clr-primary);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.05rem;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--clr-accent);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--clr-primary-dark);
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  background-color: var(--clr-bg-main);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50vw;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
  border-radius: 0 0 0 40px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  right: 0;
  width: 50vw;
  height: 100%;
  background: linear-gradient(to right, var(--clr-bg-main) 0%, rgba(250,250,250,0) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero-subtitle {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: 1rem;
  display: block;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--clr-text-muted);
  margin-bottom: 2.5rem;
}

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

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image-wrapper::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  background-color: var(--clr-accent-light);
  border-radius: var(--border-radius-lg);
  z-index: -1;
}

.about-content ul {
  margin-top: 1.5rem;
}

.about-content li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--clr-text-muted);
}

.about-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--clr-primary);
  font-weight: bold;
}

/* --- Services Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--clr-white);
  border-radius: var(--border-radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.03);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-primary-light);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--clr-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--clr-accent);
  margin-bottom: 1.5rem;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info {
  background-color: var(--clr-primary);
  color: var(--clr-white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-info h3 {
  color: var(--clr-white);
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-detail i {
  font-size: 1.5rem;
  color: var(--clr-accent-light);
  margin-top: 0.2rem;
}

.contact-form {
  background: var(--clr-white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 1px solid #E2E8F0;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 1rem;
  background-color: #F8FAFC;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(121, 141, 128, 0.2);
  background-color: var(--clr-white);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* --- Footer --- */
.footer {
  background-color: var(--clr-primary-dark);
  color: var(--clr-white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--clr-primary-light);
}

.footer-links a:hover {
  color: var(--clr-white);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: var(--clr-primary-light);
  font-size: 0.9rem;
}

/* --- Animations / Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
  h1 { font-size: 2.8rem; }
  .hero-bg, .hero-overlay { display: none; }
  .hero { align-items: center; justify-content: center; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-buttons { justify-content: center; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-image-wrapper { order: -1; max-width: 500px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--clr-white);
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
    box-shadow: var(--shadow-md);
    clip-path: circle(0% at 100% 0);
    transition: all 0.5s ease-out;
  }
  
  .nav-links.open {
    clip-path: circle(150% at 100% 0);
  }
  
  .mobile-menu-btn { display: block; }
  .section { padding: var(--spacing-section-mobile) 0; }
  
  .contact-info, .contact-form { padding: 2rem; }
}