/* ============================================
   AKASH UNIVERSE — Component Styles
   ============================================ */

/* ── Custom Cursor ── */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-cursor);
  pointer-events: none;
  mix-blend-mode: difference;
}

.cursor__dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-blue);
  border-radius: 50%;
  position: absolute;
  top: -4px;
  left: -4px;
  transition: transform 0.1s var(--ease-out-quart), opacity 0.3s;
}

.cursor__ring {
  width: 40px;
  height: 40px;
  border: 1.5px solid rgba(0, 229, 255, 0.5);
  border-radius: 50%;
  position: absolute;
  top: -20px;
  left: -20px;
  transition: width 0.4s var(--ease-out-expo), height 0.4s var(--ease-out-expo), top 0.4s var(--ease-out-expo), left 0.4s var(--ease-out-expo), border-color 0.4s, opacity 0.3s;
}

.cursor__glow {
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  position: absolute;
  top: -40px;
  left: -40px;
  transition: width 0.6s var(--ease-out-expo), height 0.6s var(--ease-out-expo), top 0.6s var(--ease-out-expo), left 0.6s var(--ease-out-expo);
}

.cursor.is-hovering .cursor__ring {
  width: 64px;
  height: 64px;
  top: -32px;
  left: -32px;
  border-color: var(--color-accent-blue);
}

.cursor.is-hovering .cursor__dot {
  transform: scale(0.5);
}

.cursor.is-clicking .cursor__ring {
  width: 30px;
  height: 30px;
  top: -15px;
  left: -15px;
}

@media (hover: none) and (pointer: coarse) {
  .cursor { display: none; }
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  padding: var(--space-lg) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: transform 0.6s var(--ease-out-expo), background 0.4s;
}

.nav.is-scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: var(--glass-border);
}

.nav.is-hidden {
  transform: translateY(-100%);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-blue);
  border-radius: 50%;
  box-shadow: var(--color-glow-blue);
  animation: pulse-glow 2s ease-in-out infinite;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--duration-normal) var(--ease-out-quart);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-gradient-1);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.nav__link:hover {
  color: var(--color-text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: border-color var(--duration-normal), background var(--duration-normal);
}

.nav__toggle-btn:hover {
  border-color: var(--color-border-hover);
  background: rgba(0, 229, 255, 0.05);
}

.nav__toggle-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--color-text-secondary);
  stroke-width: 1.5;
  transition: stroke var(--duration-normal);
}

.nav__toggle-btn:hover svg {
  stroke: var(--color-text-primary);
}

/* Hamburger */
.nav__hamburger {
  width: 44px;
  height: 44px;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  z-index: calc(var(--z-nav) + 10);
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: transform 0.4s var(--ease-out-expo), opacity 0.3s;
  transform-origin: center;
}

.nav__hamburger.is-active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-nav);
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s var(--ease-out-expo), visibility 0.6s;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-secondary);
  transition: color 0.3s;
  transform: translateY(30px);
  opacity: 0;
}

.mobile-menu.is-open .mobile-menu__link {
  transform: translateY(0);
  opacity: 1;
  transition: transform 0.8s var(--ease-out-expo), opacity 0.8s var(--ease-out-expo), color 0.3s;
}

.mobile-menu__link:hover {
  color: var(--color-accent-blue);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
}

/* ── Loading Screen ── */
.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 1s var(--ease-out-expo), visibility 1s;
}

.loader.is-complete {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__content {
  text-align: center;
}

.loader__text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wider);
  color: var(--color-accent-blue);
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
  min-height: 1.5em;
}

.loader__progress {
  width: 200px;
  height: 1px;
  background: var(--color-border);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.loader__progress-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: var(--color-accent-gradient-1);
  transition: width 0.4s var(--ease-out-quart);
}

.loader__percent {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-md);
  letter-spacing: var(--tracking-wider);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out-expo), box-shadow var(--duration-normal);
}

.btn--primary {
  background: var(--color-accent-gradient-1);
  color: #000;
  font-weight: 600;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--color-glow-blue);
}

.btn--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--color-accent-blue);
  background: rgba(0, 229, 255, 0.05);
  box-shadow: var(--color-glow-blue);
}

.btn__arrow {
  transition: transform 0.3s var(--ease-out-expo);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* ── Glass Card ── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  transition: border-color var(--duration-normal), transform var(--duration-normal) var(--ease-out-expo), box-shadow var(--duration-slow);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.3), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.glass-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.glass-card:hover::before {
  opacity: 1;
}

/* ── Section Label ── */
.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent-blue);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.section-label::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--color-accent-blue);
}

/* ── Section Heading ── */
.section-heading {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-lg);
}

/* ── Grid System ── */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

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

/* ── Progress Indicator (reading) ── */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-accent-gradient-1);
  z-index: calc(var(--z-nav) + 1);
  transition: width 0.1s linear;
}

/* ── Tag / Badge ── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.tag:hover {
  border-color: var(--color-accent-blue);
  color: var(--color-accent-blue);
  background: rgba(0, 229, 255, 0.05);
}

.tag.is-active {
  border-color: var(--color-accent-blue);
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-accent-blue);
}

/* ── Form Fields ── */
.form-field {
  position: relative;
  margin-bottom: var(--space-xl);
}

.form-field__input,
.form-field__textarea,
.form-field__select {
  width: 100%;
  padding: var(--space-lg) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-field__input:focus,
.form-field__textarea:focus,
.form-field__select:focus {
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
  outline: none;
}

.form-field__label {
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  transition: transform 0.3s var(--ease-out-expo), font-size 0.3s, color 0.3s;
  pointer-events: none;
}

.form-field__input:focus ~ .form-field__label,
.form-field__input:not(:placeholder-shown) ~ .form-field__label,
.form-field__textarea:focus ~ .form-field__label,
.form-field__textarea:not(:placeholder-shown) ~ .form-field__label {
  transform: translateY(-28px) translateX(-4px);
  font-size: 0.65rem;
  color: var(--color-accent-blue);
}

.form-field__textarea {
  min-height: 120px;
  resize: vertical;
}

.form-field__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%238b92a8' stroke-width='1.5'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-lg) center;
}