/* htaldark - Custom Styles */

/* ===============================================
   ROOT VARIABLES
   =============================================== */
:root {
  --color-brand-primary: #0ea5e9;
  --color-brand-secondary: #8b5cf6;
  --color-brand-accent: #ec4899;
  --color-bg-primary: #030712;
  --color-bg-secondary: #0f172a;
  --color-bg-tertiary: #1e293b;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: rgba(255, 255, 255, 0.08);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.3);
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.22, 1, 0.36, 1);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
  cursor: pointer;
}

/* ===============================================
   TYPOGRAPHY ENHANCEMENTS
   =============================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.lead {
  font-size: 1.25rem;
  line-height: 1.8;
}

/* ===============================================
   BUTTONS
   =============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand-primary) 0%, #0284c7 100%);
  color: white;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(14, 165, 233, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), 0 0 50px rgba(14, 165, 233, 0.35);
}

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

.btn-secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-tertiary);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Button sizes */
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-xl { padding: 1.25rem 2.5rem; font-size: 1.125rem; }

/* ===============================================
   CARDS
   =============================================== */
.card {
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.03) 0%, 
    rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: all var(--transition-bounce);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: var(--shadow-xl), 0 0 60px rgba(14, 165, 233, 0.1);
}

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

.card-glass {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ===============================================
   FORM ELEMENTS
   =============================================== */
.input,
.textarea,
.select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

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

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

.label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ===============================================
   BADGES & TAGS
   =============================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-brand-primary);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

.badge-purple {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-brand-secondary);
  border-color: rgba(139, 92, 246, 0.2);
}

.badge-pink {
  background: rgba(236, 72, 153, 0.1);
  color: var(--color-brand-accent);
  border-color: rgba(236, 72, 153, 0.2);
}

.badge-green {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.2);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* ===============================================
   NAVIGATION
   =============================================== */
.nav-link {
  position: relative;
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brand-primary), var(--color-brand-secondary));
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

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

/* ===============================================
   SECTIONS
   =============================================== */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-lg {
  padding: 8rem 0;
}

.section-header {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
}

.container {
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* ===============================================
   DIVIDERS & DECORATIONS
   =============================================== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--color-border) 50%, 
    transparent 100%);
}

.divider-vertical {
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, 
    transparent 0%, 
    var(--color-border) 50%, 
    transparent 100%);
}

.accent-bar {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-brand-primary), var(--color-brand-secondary));
  border-radius: 2px;
}

.accent-dot {
  width: 8px;
  height: 8px;
  background: var(--color-brand-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-brand-primary);
}

/* ===============================================
   UTILITY CLASSES
   =============================================== */
/* Spacing */
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }

/* Text utilities */
.text-gradient {
  background: linear-gradient(135deg, 
    var(--color-brand-primary) 0%, 
    var(--color-brand-secondary) 50%, 
    var(--color-brand-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.text-balance {
  text-wrap: balance;
}

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

/* ===============================================
   ANIMATIONS
   =============================================== */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse-slow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-fade-up {
  animation: fade-up 0.6s ease-out forwards;
}

.animate-fade-in {
  animation: fade-in 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scale-in 0.4s ease-out forwards;
}

.animate-slide-right {
  animation: slide-in-right 0.5s ease-out forwards;
}

/* Animation delays */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* ===============================================
   ICON STYLES
   =============================================== */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-lg);
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-brand-primary);
  transition: all var(--transition-normal);
}

.icon-box:hover {
  background: rgba(14, 165, 233, 0.2);
  transform: scale(1.05);
}

.icon-box-purple {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-brand-secondary);
}

.icon-box-purple:hover {
  background: rgba(139, 92, 246, 0.2);
}

.icon-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-brand-primary);
}

/* ===============================================
   HERO SECTION SPECIFIC
   =============================================== */
.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.7;
  max-width: 600px;
}

/* ===============================================
   FOOTER
   =============================================== */
.footer {
  background: linear-gradient(180deg, var(--color-bg-primary) 0%, #020617 100%);
  border-top: 1px solid var(--color-border);
  padding: 5rem 0 2rem;
}

.footer-link {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-brand-primary);
}

/* ===============================================
   MEDIA QUERIES
   =============================================== */
@media (max-width: 640px) {
  .section {
    padding: 4rem 0;
  }
  
  .section-lg {
    padding: 5rem 0;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .btn {
    padding: 0.75rem 1.25rem;
  }
  
  .btn-lg {
    padding: 0.875rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===============================================
   DARK MODE OPTIMIZATIONS
   =============================================== */
@media (prefers-color-scheme: dark) {
  /* Already optimized for dark mode as default */
}

/* ===============================================
   PRINT STYLES
   =============================================== */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .no-print,
  nav,
  footer {
    display: none !important;
  }
  
  .card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}