@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  color-scheme: light dark;
  --font-main: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Executive Editorial Palette */
  --bg-dark: #0e1015;
  --bg-dark-surface: #141720;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-dark-hover: rgba(99, 102, 241, 0.35);

  --bg-light: #ffffff;
  --bg-light-subtle: #f8f9fa;
  --border-light: rgba(15, 23, 42, 0.08);
  --border-light-hover: rgba(79, 70, 229, 0.3);

  --accent-purple: #4f46e5;
  --accent-purple-hover: #4338ca;
  --accent-purple-subtle: rgba(79, 70, 229, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base resets & typography */
html {
  font-family: var(--font-main);
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background-color: var(--bg-dark);
  color: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

/* Section Tag Typography (Clean, No Numbers) */
.section-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: inline-block;
}

/* Pill Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background-color: var(--accent-purple);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--accent-purple-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.05);
  color: #f8fafc !important;
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid var(--border-dark);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn-light-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background-color: transparent;
  color: #0f172a !important;
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-light-ghost:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple) !important;
  background-color: var(--accent-purple-subtle);
  transform: translateY(-1px);
}

/* Language Toggle Pill */
.lang-toggle-container {
  display: inline-flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #94a3b8;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background-color: #ffffff;
  color: #0f172a;
}

/* Nav Link Hover & Active */
.nav-pill-link {
  font-size: 13px;
  font-weight: 500;
  color: #94a3b8;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-pill-link:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-pill-link.active {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
  font-weight: 600;
}

/* Editorial Cards */
.editorial-card-light {
  background-color: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.editorial-card-light:hover {
  border-color: var(--border-light-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

/* Scroll reveal classes */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* Case Study Modal */
#case-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(14, 16, 21, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) 16px calc(env(safe-area-inset-bottom, 0px) + 20px) 16px;
  justify-content: center;
}

#case-modal.open {
  display: flex;
  align-items: flex-start;
  animation: modalFadeIn 0.2s ease-out forwards;
}

@media (min-width: 640px) {
  #case-modal {
    padding: 36px 20px;
  }
  #case-modal.open {
    align-items: center;
  }
}

.modal-content-box {
  background: #ffffff;
  color: #0f172a;
  border-radius: 20px;
  max-width: 680px;
  width: 100%;
  position: relative;
  margin: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: modalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal-close-wrapper {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
  margin-top: -6px;
  margin-right: -6px;
  margin-bottom: -36px;
}

@media (min-width: 640px) {
  .modal-close-wrapper {
    margin-top: -12px;
    margin-right: -12px;
    margin-bottom: -32px;
  }
}

#modal-close-btn {
  pointer-events: auto;
  width: 40px;
  height: 40px;
  border-radius: 9999px;
  background-color: rgba(241, 245, 249, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(203, 213, 225, 0.85);
  box-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.12), 0 2px 6px -1px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.15s ease;
}

#modal-close-btn:hover {
  background-color: #e2e8f0;
  color: #0f172a;
}

#modal-close-btn:active {
  background-color: #cbd5e1;
  transform: scale(0.94);
}

@media (min-width: 640px) {
  #modal-close-btn {
    width: 36px;
    height: 36px;
  }
}


/* Back to Top */
#back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 80;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: #0e1015;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all var(--transition-fast);
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#back-to-top:hover {
  background-color: var(--accent-purple);
  transform: translateY(-2px);
  border-color: transparent;
}

/* Form Inputs */
.editorial-input {
  width: 100%;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 8px 12px;
  color: #f8fafc;
  font-size: 13px;
  font-family: inherit;
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.editorial-input:focus {
  outline: none;
  background-color: rgba(255, 255, 255, 0.07);
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.25);
}

.editorial-input::placeholder {
  color: #64748b;
}

/* Mobile Nav Drawer */
#mobile-nav {
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}

#mobile-nav.open {
  max-height: 400px;
  opacity: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: #0e1015;
}
::-webkit-scrollbar-thumb {
  background: #232733;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #4f46e5;
}