:root {
  --bg-primary: #e0e5ec;
  --bg-dark: #0a0e17;
  --bg-surface: #e0e5ec;
  --bg-card: #e0e5ec;
  --border-color: rgba(0, 0, 0, 0.08);
  --accent-blue: #1E90FF;
  --accent-blue-dark: #1565C0;
  --accent-blue-light: #64B5F6;
  --accent-emerald: #10b981;
  --accent-pink: #ec4899;
  --text-main: #2d3748;
  --text-muted: #718096;
  --text-on-dark: #f1f5f9;
  --neu-shadow: 8px 8px 16px #b8bec7, -8px -8px 16px #ffffff;
  --neu-shadow-sm: 4px 4px 8px #b8bec7, -4px -4px 8px #ffffff;
  --neu-inset: inset 4px 4px 8px #b8bec7, inset -4px -4px 8px #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
}

main {
  overflow-x: hidden;
}

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

/* Hide scrollbars globally */
::-webkit-scrollbar { display: none; width: 0; height: 0; }
* { scrollbar-width: none; -ms-overflow-style: none; }

/* ===== NEUMORPHISM ===== */
.neu-card {
  background: var(--bg-surface);
  border-radius: 20px;
  box-shadow: var(--neu-shadow);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.neu-card:hover {
  box-shadow: 10px 10px 20px #b8bec7, -10px -10px 20px #ffffff;
  transform: translateY(-2px);
}
.neu-card-clickable {
  cursor: pointer;
}
.neu-card-clickable:active {
  box-shadow: var(--neu-inset);
  transform: translateY(0);
}

.neu-card-dark {
  background: var(--bg-dark);
  border-radius: 20px;
  box-shadow: 8px 8px 16px rgba(0, 0, 0, 0.4), -4px -4px 12px rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.neu-inset {
  box-shadow: var(--neu-inset);
  border-radius: 12px;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* ===== BUTTONS ===== */
.neu-btn {
  background: var(--bg-surface);
  border-radius: 12px;
  box-shadow: var(--neu-shadow-sm);
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: 12px 24px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
}
.neu-btn:active { box-shadow: var(--neu-inset); }

.neu-btn-primary {
  background: linear-gradient(135deg, #1E90FF 0%, #1565C0 100%);
  color: #ffffff;
  border-radius: 12px;
  box-shadow: 4px 4px 12px rgba(30, 144, 255, 0.3), -2px -2px 8px rgba(255, 255, 255, 0.1);
  border: none;
  padding: 12px 24px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
}
.neu-btn-primary:hover {
  box-shadow: 6px 6px 16px rgba(30, 144, 255, 0.4), -3px -3px 10px rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.neu-btn-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  border-radius: 12px;
  box-shadow: 4px 4px 8px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 24px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
}
.neu-btn-dark:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(30, 144, 255, 0.4);
}

/* ===== INPUTS ===== */
.neu-input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.2s ease;
  box-shadow: var(--neu-inset);
}
.neu-input:focus {
  border-color: var(--accent-blue);
  box-shadow: var(--neu-inset), 0 0 0 2px rgba(30, 144, 255, 0.2);
}

/* File input styled as neumorphism button */
.neu-file-input {
  position: relative;
  width: 100%;
}
.neu-file-input input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}
.neu-file-input-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  background: var(--bg-surface);
  border-radius: 12px;
  box-shadow: var(--neu-shadow-sm);
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.neu-file-input-label:hover {
  box-shadow: 6px 6px 12px #b8bec7, -6px -6px 12px #ffffff;
  border-color: rgba(30, 144, 255, 0.3);
}
.neu-file-input input[type="file"]:active + .neu-file-input-label {
  box-shadow: var(--neu-inset);
}
.neu-file-input-label svg { flex-shrink: 0; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-blue {
  background: rgba(30, 144, 255, 0.12);
  color: #1E90FF;
  border: 1px solid rgba(30, 144, 255, 0.25);
}
.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-pink {
  background: rgba(236, 72, 153, 0.12);
  color: #ec4899;
  border: 1px solid rgba(236, 72, 153, 0.25);
}

.gradient-text {
  background: linear-gradient(135deg, #1E90FF 0%, #1565C0 50%, #0d47a1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

.anim-fade-up {
  animation: fadeInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.anim-fade-in {
  animation: fadeIn 0.5s ease both;
}
.anim-slide-right {
  animation: slideInRight 0.5s ease both;
}
.anim-scale-in {
  animation: scaleIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

/* Stagger delays */
.delay-1 { animation-delay: 0.08s; }
.delay-2 { animation-delay: 0.16s; }
.delay-3 { animation-delay: 0.24s; }
.delay-4 { animation-delay: 0.32s; }
.delay-5 { animation-delay: 0.4s; }
.delay-6 { animation-delay: 0.48s; }

/* Expand / Collapse transitions */
.expand-enter {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.4s ease,
              padding 0.4s ease,
              margin 0.4s ease;
}
.expand-enter-active {
  max-height: 200px;
  opacity: 1;
}
.expand-collapse {
  max-height: 200px;
  opacity: 1;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.4s ease,
              padding 0.4s ease,
              margin 0.4s ease;
}
.expand-collapse.collapsing {
  max-height: 0;
  opacity: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .desktop-nav { display: none !important; }
  #mobile-hamburger-btn { display: flex !important; }
}
@media (min-width: 769px) {
  #mobile-hamburger-btn { display: none !important; }
}