/**
 * ==============================================================================
 * ALKAYS.UZ - CORE LAYOUT & TYPOGRAPHY
 * File: assets/css/main.css
 * ==============================================================================
 */

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
  overflow-x: hidden;
}

.bg-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: var(--z-bg);
  background-image: 
    linear-gradient(to right, rgba(56, 189, 248, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(56, 189, 248, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
}

.bg-radial-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-bg);
  filter: blur(120px);
  opacity: 0.12;
}

.glow-top-right {
  top: -200px;
  right: -200px;
  background: var(--accent-cyan);
}

.glow-mid-left {
  top: 40%;
  left: -250px;
  background: var(--accent-deep-blue);
}

.glow-bottom-right {
  bottom: -200px;
  right: -100px;
  background: var(--accent-indigo);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: 960px;
}

.container-wide {
  max-width: 1400px;
}

.section {
  position: relative;
  padding-top: var(--section-spacing-y);
  padding-bottom: var(--section-spacing-y);
  z-index: var(--z-base);
}

.section-alt {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  margin-bottom: 3.75rem;
}

.section-header.text-left {
  text-align: left;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-tag::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}

.section-header.text-left .section-subtitle {
  margin-left: 0;
}

.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline;
}

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

.mono-text {
  font-family: var(--font-mono);
}

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

.text-cyan {
  color: var(--accent-cyan);
}

.text-blue {
  color: var(--accent-sky);
}

.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.flex {
  display: flex;
}

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

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

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

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darkest);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-darkest);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-sky);
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-card-hover);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card-hover);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transform: translateY(20px);
  opacity: 0;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
}

.toast-success .toast-icon {
  color: var(--accent-emerald);
}

.toast-error .toast-icon {
  color: var(--accent-rose);
}