/* ============================================
   Monolithe PRO - Dark Mode Stylesheet
   ============================================ */

/* -------------------------
   CSS Variables (Dark Mode Design Tokens)
   ------------------------- */
:root {
  /* Dark Mode Colors */
  --color-primary-dark: #ffffff;
  --color-secondary-dark: #d4d4d4;
  --color-muted-dark: #a3a3a3;
  --color-border-dark: #404040;
  --color-border-light-dark: #2a2a2a;
  --color-background-dark: #0a0a0a;
  --color-background-subtle-dark: #171717;
  --color-background-card-dark: #1a1a1a;
  --color-text-dark: #fafafa;
  --color-text-light-dark: #d4d4d4;
  --color-text-muted-dark: #a3a3a3;
  --color-accent-dark: #3b82f6;
  
  /* Keep same typography and spacing from main */
  --font-main: "Playfair Display", serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  --max-width-sm: 40rem;
  --max-width-md: 48rem;
  --max-width-lg: 64rem;
  --max-width-xl: 80rem;
  
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;
}

/* -------------------------
   Reset & Base Styles
   ------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-optical-sizing: auto;
  font-weight: var(--font-weight-normal);
  color: var(--color-text-dark);
  background-color: var(--color-background-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Dark background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  z-index: -1;
}

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

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* -------------------------
   Layout Containers
   ------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width-lg);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-6);
  padding-right: var(--spacing-6);
}

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

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

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

/* -------------------------
   Version Toggle Button
   ------------------------- */
.version-toggle {
  background-color: var(--color-background-card-dark);
  border: 1px solid var(--color-border-dark);
  padding: var(--spacing-3) var(--spacing-6);
  color: var(--color-primary-dark);
  transition: all var(--transition-normal);
  font-weight: var(--font-weight-medium);
}

.version-toggle:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-background-dark);
  border-color: var(--color-primary-dark);
}

/* -------------------------
   Header & Navigation
   ------------------------- */
.header {
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-dark);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-6);
  padding-bottom: var(--spacing-6);
}

.header-sticky {
  position: sticky;
  top: 0;
  z-index: 50;
}

.logo {
  display: flex;
  align-items: flex-end;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-light);
  letter-spacing: -0.025em;
  color: var(--color-primary-dark);
  gap: 2px;
}

.logo img {
  height: 40px;
  padding-bottom: 0;
  filter: invert(1) brightness(1.2);
}

.logo-badge {
  display: inline-block;
  background-color: var(--color-accent-dark);
  color: white;
  font-size: var(--text-xs);
  padding: 2px 8px;
  margin-left: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

@media (min-width: 1024px) {
  .nav {
    gap: var(--spacing-8);
  }
}

.nav-link {
  font-size: var(--text-sm);
  color: var(--color-secondary-dark);
  transition: color var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-primary-dark);
}

.nav-link-active {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-medium);
}

/* -------------------------
   Typography
   ------------------------- */
.heading-hero {
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-light);
  letter-spacing: -0.025em;
  color: var(--color-primary-dark);
  line-height: 1.1;
}

@media (min-width: 768px) {
  .heading-hero {
    font-size: var(--text-6xl);
  }
}

.heading-section {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-light);
  color: var(--color-primary-dark);
}

.heading-card {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-light);
  color: var(--color-primary-dark);
}

.heading-subsection {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-normal);
  color: var(--color-primary-dark);
}

.heading-small {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-normal);
  color: var(--color-primary-dark);
}

.text-large {
  font-size: var(--text-xl);
  color: var(--color-text-dark);
  font-weight: var(--font-weight-light);
}

.text-body {
  font-size: var(--text-base);
  color: var(--color-text-light-dark);
  line-height: 1.7;
  margin-bottom: var(--spacing-6);
}

.text-small {
  font-size: var(--text-sm);
  color: var(--color-text-light-dark);
}

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

.text-center {
  text-align: center;
}

.text-aligned-both-sides {
  text-align: justify;
  text-align-last: left;
}

/* -------------------------
   Buttons
   ------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
  transition: all var(--transition-normal);
}

.btn-primary {
  background-color: var(--color-primary-dark);
  color: var(--color-background-dark);
  padding: var(--spacing-4) var(--spacing-8);
}

.btn-primary:hover {
  background-color: var(--color-secondary-dark);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-lg {
  font-size: var(--text-lg);
  padding: var(--spacing-5) var(--spacing-10);
}

.btn-full {
  width: 100%;
}

.btn-text {
  color: var(--color-primary-dark);
  padding: var(--spacing-2);
  background-color: transparent;
  border: 1px solid var(--color-border-dark);
}

.btn-text:hover {
  background-color: var(--color-background-subtle-dark);
  border-color: var(--color-primary-dark);
}

/* -------------------------
   Cards & Containers
   ------------------------- */
.card {
  background-color: var(--color-background-card-dark);
  border: 1px solid var(--color-border-dark);
}

.card-padded {
  padding: var(--spacing-8);
}

.card-padded-lg {
  padding: var(--spacing-12);
}

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

.card-highlight {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
  border-color: var(--color-accent-dark);
}

/* -------------------------
   Forms & Inputs
   ------------------------- */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-secondary-dark);
  margin-bottom: var(--spacing-2);
}

.form-input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-base);
  border: 1px solid var(--color-border-dark);
  background-color: var(--color-background-subtle-dark);
  color: var(--color-text-dark);
  transition: border-color var(--transition-normal);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-dark);
}

.form-input-lg {
  padding: var(--spacing-4) var(--spacing-6);
  font-size: var(--text-lg);
}

.form-textarea {
  resize: vertical;
}

/* -------------------------
   Footer
   ------------------------- */
.footer {
  background-color: var(--color-background-dark);
  border-top: 1px solid var(--color-border-dark);
  margin-top: auto;
}

.footer-inner {
  padding-top: var(--spacing-8);
  padding-bottom: var(--spacing-4);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--spacing-4);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted-dark);
}

/* -------------------------
   Sections & Spacing
   ------------------------- */
.section {
  margin-bottom: var(--spacing-16);
}

.section-hero {
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-20);
}

.section-content {
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-16);
}

.space-y-2 > * + * { margin-top: var(--spacing-2); }
.space-y-3 > * + * { margin-top: var(--spacing-3); }
.space-y-4 > * + * { margin-top: var(--spacing-4); }
.space-y-6 > * + * { margin-top: var(--spacing-6); }
.space-y-8 > * + * { margin-top: var(--spacing-8); }
.space-y-12 > * + * { margin-top: var(--spacing-12); }

.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-16 { margin-bottom: var(--spacing-16); }
.mb-20 { margin-bottom: var(--spacing-20); }

.pt-8 { padding-top: var(--spacing-8); }
.pt-12 { padding-top: var(--spacing-12); }
.pb-8 { padding-bottom: var(--spacing-8); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }

/* -------------------------
   Grid Layouts
   ------------------------- */
.grid-2 {
  display: grid;
  gap: var(--spacing-6);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  gap: var(--spacing-6);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* -------------------------
   Utility Classes
   ------------------------- */
.hidden {
  display: none !important;
}

@media (max-width: 767px) {
  .hidden-mobile {
    display: none !important;
  }
}

.flex {
  display: flex;
}

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

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-8 { gap: var(--spacing-8); }

/* -------------------------
   Icons
   ------------------------- */
.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-lg {
  width: 24px;
  height: 24px;
}

/* -------------------------
   Animations
   ------------------------- */
@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fade-in var(--transition-slow) ease-out;
}

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

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

/* -------------------------
   Contact Page Styles
   ------------------------- */
.contact-info-item {
  margin-bottom: var(--spacing-6);
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-2);
}

.contact-link {
  color: var(--color-accent-dark);
  transition: opacity var(--transition-normal);
}

.contact-link:hover {
  opacity: 0.8;
}

.social-links {
  display: flex;
  gap: var(--spacing-4);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-background-subtle-dark);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border-dark);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-background-dark);
  border-color: var(--color-primary-dark);
}

/* -------------------------
   Team Cards
   ------------------------- */
.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.team-photo-wrapper {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-6);
  border: 3px solid var(--color-border-dark);
}

.team-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-social {
  display: flex;
  justify-content: center;
  margin-top: auto;
}

.team-linkedin {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: #0A66C2;
  color: var(--color-primary-dark);
  border-radius: 50%;
  transition: background-color var(--transition-normal);
}

.team-linkedin:hover {
  background-color: #004182;
}

/* -------------------------
   Feature Cards
   ------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--color-background-card-dark);
  border: 1px solid var(--color-border-dark);
  padding: var(--spacing-8);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-dark);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, rgba(59, 130, 246, 0.6) 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-4);
  font-size: var(--text-2xl);
}

.feature-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-normal);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-3);
}

.feature-description {
  font-size: var(--text-sm);
  color: var(--color-text-light-dark);
  line-height: 1.7;
}

/* -------------------------
   Stats Section
   ------------------------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-6);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  text-align: center;
  padding: var(--spacing-6);
  background-color: var(--color-background-card-dark);
  border: 1px solid var(--color-border-dark);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-light);
  color: var(--color-accent-dark);
  margin-bottom: var(--spacing-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted-dark);
}

/* -------------------------
   Checkbox & Links
   ------------------------- */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  cursor: pointer;
}

.checkbox-input {
  margin-top: 4px;
  cursor: pointer;
}

.checkbox-text {
  font-size: var(--text-sm);
  color: var(--color-text-light-dark);
}

.text-link {
  color: var(--color-accent-dark);
  text-decoration: underline;
  transition: opacity var(--transition-normal);
}

.text-link:hover {
  opacity: 0.8;
}

@media (max-width: 768px) {
  .contact-responsive {
    flex-direction: column;
  }
}