/**
 * Global Styles - 1.wien
 * Base styles and utility classes
 */

/* ============================================
   BASE STYLES
   ============================================ */
html {
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

/* ============================================
   ACCESSIBILITY UTILITIES
   ============================================ */
/* Screen reader only - visually hidden but available to assistive technology */
.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;
}

/* ============================================
   LOGO - DARK THEME ONLY
   ============================================ */
/* Always show dark logo, hide light logo */
.logo-light {
  display: none !important;
}

.logo-dark {
  display: block;
}

.footer-logo .logo-dark {
  display: block !important;
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.container-wide {
  max-width: var(--container-wide);
}

/* ============================================
   SECTIONS
   ============================================ */
section {
  position: relative;
  padding: var(--section-padding-y) 0;
  overflow: hidden;
}

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}

h1 {
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
}

h4 {
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
}

h5 {
  font-size: var(--text-xl);
  line-height: var(--leading-normal);
}

h6 {
  font-size: var(--text-lg);
  line-height: var(--leading-normal);
}

/* Fix for deprecated user-agent font-size adjustments in sectioning elements */
section h1, article h1, aside h1, nav h1 {
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.text-gradient {
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.4)) drop-shadow(0 0 35px rgba(124, 58, 237, 0.3));
}

.text-cyan {
  color: var(--color-cyan);
}

.text-purple {
  color: var(--color-purple);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-lg);
  transition: all var(--duration-base) var(--ease-in-out);
  cursor: pointer;
  border: none;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-lg), 0 0 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  background: var(--gradient-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow-cyan), 0 0 25px rgba(0, 212, 255, 0.6), 0 0 40px rgba(124, 58, 237, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--card-border);
  position: relative;
  z-index: 1;
}

.btn-outline::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-in-out);
  z-index: -1;
  border-radius: var(--radius-lg);
}

.btn-outline:hover::before {
  opacity: 0.15;
}

.btn-outline:hover {
  border-color: var(--color-cyan);
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--card-bg);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
}

.btn-ghost:hover {
  background: var(--card-hover-bg);
  transform: translateY(-2px);
  border-color: var(--color-cyan);
}

.btn-lg {
  padding: var(--space-5) var(--space-8);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--card-shadow);
  transition: all var(--duration-base) var(--ease-in-out);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-hover-shadow), 0 0 30px rgba(0, 212, 255, 0.2), 0 0 60px rgba(124, 58, 237, 0.15);
  border-color: var(--color-cyan);
}

/* ============================================
   LINKS
   ============================================ */
a {
  transition: color var(--duration-fast) var(--ease-in-out);
}

.link {
  color: var(--color-cyan);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--duration-fast) var(--ease-in-out);
}

.link:hover {
  color: var(--color-cyan-light);
  text-decoration-color: currentColor;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-4);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: max(16px, var(--text-base));
  transition: all var(--duration-base) var(--ease-in-out);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Fix dropdown options in dark mode */
.form-select {
  color-scheme: light dark;
}

.form-select option {
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: var(--space-3);
}

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

.form-error {
  border-color: var(--color-error);
}

.form-error-message {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

.form-success-message {
  color: var(--color-success);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--color-cyan);
  color: var(--color-cyan);
}

.badge-success {
  background: var(--color-success);
  color: var(--color-dark);
}

.badge-warning {
  background: var(--color-warning);
  color: var(--color-dark);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }

/* Display */
.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  animation: fadeIn var(--duration-base) var(--ease-out);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.slide-up {
  animation: slideUp var(--duration-slow) var(--ease-out);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 768px) {
  .show-mobile {
    display: none !important;
  }
}