:root {
  --accent: #6c5ce7;
  --radius: 22px;
  --blur: 22px;
  --trans: 0.25s ease;
}

/* Base */
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: #f5f5f7;
  color: #111;
  transition: var(--trans);
}

@media (prefers-color-scheme: dark) {
  body {
    background: #0d0d0d;
    color: #fafafa;
  }
}

/* Navbar */
.glass-nav {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  padding: 10px 26px;
  animation: fadeUp 0.5s ease;
}

@media (prefers-color-scheme: dark) {
  .glass-nav {
    background: rgba(20, 20, 20, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.15);
  }
}

/* Cards */
.liquid-card {
  backdrop-filter: blur(var(--blur)) saturate(180%) brightness(1.15);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%) brightness(1.15);
  background: rgba(255,255,255,0.28);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 8px 30px rgba(0,0,0,0.07);
  transition: var(--trans);
}

@media (prefers-color-scheme: dark) {
  .liquid-card {
    background: rgba(30,30,30,0.38);
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 8px 40px rgba(0,0,0,0.7);
  }
}

/* Buttons */
.liquid-btn {
  padding: 0.55rem 1.5rem;
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  background: rgba(255,255,255,0.28);
  border: 1px solid rgba(255,255,255,0.25);
  transition: var(--trans);
  font-weight: 500;
}

@media (prefers-color-scheme: dark) {
  .liquid-btn {
    background: rgba(30,30,30,0.38);
    border: 1px solid rgba(255,255,255,0.12);
  }
}

.liquid-btn:hover {
  transform: translateY(-3px) scale(1.02);
}

.primary-btn {
  background: var(--accent) !important;
  color: #fff;
  box-shadow: 0 6px 20px rgba(108,92,231,0.5);
}

/* Project card motion */
.project-card:hover {
  transform: translateY(-6px) scale(1.025);
}

/* Section titles */
.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  opacity: 0.9;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.7s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}