/* Professional Theme - Scientific Clarity, Engineering Discipline, Human Tone */
:root {
  /* Color Palette */
  --color-text-primary: #1a1a1a;        /* Near-black for headlines */
  --color-text-body: #2d2d2d;           /* Deep graphite for body text */
  --color-bg-primary: #f0f2f5;          /* Very light blue-gray */
  --color-bg-secondary: #e8ebef;        /* Soft blue-gray */
  --color-accent: #5b6c8d;               /* Muted indigo */
  --color-accent-micro: #d97706;         /* Warm amber (sparingly) */
  
  /* Legacy variable names for compatibility */
  --theme-text: var(--color-text-body);
  --theme-text-heading: var(--color-text-primary);
  --theme-background: var(--color-bg-primary);
  --theme-bg: var(--color-bg-primary);
  --theme-card-bg: #f8f9fa;               /* Slightly lighter blue-gray for cards */
  --theme-button-bg: #f8f9fa;
  --theme-input-bg: #f8f9fa;
  --theme-accent: var(--color-accent);
  --theme-text-on-primary: #ffffff;
  
  /* Borders and subtle elements */
  --theme-card-border: rgba(26, 26, 26, 0.08);
  
  /* Status colors (minimal, functional) */
  --theme-error: #dc2626;
  --theme-success: #16a34a;
  --theme-warning: var(--color-accent-micro);
  --theme-info: var(--color-accent);
  
  /* Typography */
  --theme-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --theme-font-logo: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Line heights */
  --line-height-body: 1.65;
  --line-height-heading: 1.2;
  
  /* Max content width for readability */
  --max-width-content: 65ch;
}

body {
  font-family: var(--theme-font-sans);
  background-color: var(--theme-background);
  color: var(--theme-text);
  line-height: var(--line-height-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--theme-text-heading);
  font-family: var(--theme-font-sans);
  line-height: var(--line-height-heading);
  letter-spacing: -0.01em;
  font-weight: 600;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Global link styles */
a:not(footer a):not(nav a) {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

a:not(footer a):not(nav a):hover {
  border-bottom-color: var(--color-accent);
}

/* Footer link styles */
footer a {
  color: var(--theme-text) !important;
  text-decoration: none;
  border-bottom: none;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--color-accent) !important;
  border-bottom: none;
}

/* Navigation link styles */
nav a {
  text-decoration: none;
  border-bottom: none;
  color: var(--theme-text);
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--color-accent);
}

/* Logo Styling */
.logo, .font-logo, .logo-text {
  font-family: var(--theme-font-logo);
  color: var(--theme-text-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.logo {
  font-size: 1.875rem;
  line-height: 2.25rem;
}

.logo-text {
  font-size: 1.5rem;
  line-height: 2rem;
}

.font-logo {
  font-size: 1.25rem;
  line-height: 1.75rem;
}

/* Section styling */
.section {
  background: var(--theme-card-bg);
  padding: 2rem;
  margin-bottom: 3rem;
}

/* Utility classes for backgrounds */
.bg-default {
  background-color: var(--theme-background) !important;
}

.bg-card {
  background-color: var(--theme-card-bg) !important;
}

.bg-button {
  background-color: var(--theme-button-bg) !important;
}

.bg-input {
  background-color: var(--theme-input-bg) !important;
}

/* Utility classes for text */
.text-default {
  color: var(--theme-text) !important;
}

.text-theme-accent {
  color: var(--color-accent) !important;
}

.text-error {
  color: var(--theme-error) !important;
}

.text-success {
  color: var(--theme-success) !important;
}

.text-warning {
  color: var(--theme-warning) !important;
}

.text-info {
  color: var(--theme-info) !important;
}

/* Border utilities */
.border-accent {
  border-color: var(--color-accent) !important;
}

.border-text {
  border-color: var(--theme-text) !important;
}

.card-border {
  border-color: var(--theme-card-border) !important;
}

/* Form elements */
input, textarea, select {
  background-color: var(--theme-input-bg);
  color: var(--theme-text);
  border: 1px solid var(--theme-card-border);
  border-radius: 4px;
  padding: 0.5rem;
  transition: border-color 0.2s ease;
  font-family: var(--theme-font-sans);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(91, 108, 141, 0.1);
}

/* Button styles - calm and professional */
.btn {
  background-color: var(--theme-button-bg);
  color: var(--theme-text);
  border: 1px solid var(--theme-card-border);
  border-radius: 4px;
  padding: 0.625rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  font-family: var(--theme-font-sans);
}

.btn:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-accent);
  color: var(--theme-text);
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--theme-text-on-primary);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: #4a5a75;
  border-color: #4a5a75;
  color: var(--theme-text-on-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--theme-text-on-primary);
  border-color: var(--color-accent);
}

/* Automatic section numbering for Terms of Service */
.prose {
  counter-reset: section-number;
}

.prose > section:not(.intro-section) {
  counter-increment: section-number;
}

.prose > section:not(.intro-section) > h2::before {
  content: counter(section-number, decimal-leading-zero) " ";
  font-weight: inherit;
}

/* Content width constraint for readability */
.max-w-content {
  max-width: var(--max-width-content);
}

/* Border utility for theme-card-border (used with Tailwind) */
.border-theme-card-border {
  border-color: var(--theme-card-border) !important;
}

.border-t-theme-card-border {
  border-top-color: var(--theme-card-border) !important;
}

/* Subscription Panel Styling */
.subscription-panel {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.subscription-panel:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Remove all decorative transitions */
* {
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

/* Hero Section Styling */
.hero-section {
  position: relative;
  /* Background image will be added here when available */
  /* Example: background-image: url('../assets/hero-landscape.jpg'); */
  /* background-size: cover; */
  /* background-position: center; */
  /* background-repeat: no-repeat; */
  
  /* Placeholder background - erkennbarer Hintergrund für Bildplatz */
  background: linear-gradient(135deg, #e8ebef 25%, #d1d5db 25%, #d1d5db 50%, #e8ebef 50%, #e8ebef 75%, #d1d5db 75%, #d1d5db);
  background-size: 40px 40px;
  border: 2px dashed var(--color-accent);
  border-radius: 8px;
  margin: 0 1rem;
}

/* Optional: Overlay for better text readability when background image is added */
.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Uncomment when background image is added */
  /* background: rgba(240, 242, 245, 0.85); */
  z-index: 0;
}

.hero-section > div {
  position: relative;
  z-index: 1;
}

/* Hero Title - ensures 2 lines on larger screens */
.hero-title {
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.1;
}