/*
 * Lumzea Core Layout & Layout Utilities
 */

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.25rem;
}

p {
  font-size: clamp(0.95rem, 1.5vw, 1.125rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 400;
  line-height: 1.7;
}

/* Gradient text utility */
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-purple-cyan {
  background: var(--gradient-purple-cyan);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(to right, var(--color-blue), var(--color-purple), var(--color-cyan));
  width: 0%;
  z-index: 1000;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Preloader styles */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #06060c;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(99, 102, 241, 0.1);
  border-radius: 50%;
  border-top-color: var(--color-indigo);
  animation: spin 1s ease-in-out infinite;
}

/* Animations */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
}

@keyframes pulse-slow {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(1.1); }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Glowing Background Blobs */
.glow-blob {
  position: absolute;
  width: clamp(250px, 40vw, 500px);
  height: clamp(250px, 40vw, 500px);
  background: radial-gradient(circle, rgba(var(--color-indigo-rgb), 0.12) 0%, rgba(var(--color-purple-rgb), 0.05) 50%, transparent 100%);
  filter: blur(80px);
  border-radius: var(--radius-full);
  z-index: -1;
  pointer-events: none;
  animation: pulse-slow 10s ease-in-out infinite;
}

/* Layout Helpers */
.grid {
  display: grid;
  gap: 2rem;
}
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Reveal on Scroll styling */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Section base */
section {
  padding: 8rem 0;
  position: relative;
  overflow: hidden;
}

@media (max-width: 768px) {
  section {
    padding: 5rem 0;
  }
}