/* ==========================================================================
   LAYOUT SHELL STYLESHEET (CSS Grid Architecture)
   Portfolio: Aylin Aslı Altınkılıç
   Framework: Antigravity Modular HTML/CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. GLOBAL SITE LAYOUT SHELL (CSS Grid)
   -------------------------------------------------------------------------- */
.site-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  background-color: var(--color-bg-base);
  overflow-x: clip;
}

/* Cyber Blueprint Grid Background Overlay */
.site-layout::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-negative);
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 30%, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 100%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 100%);
}

/* Ambient Cyber Glow Accents */
.site-layout::after {
  content: "";
  position: fixed;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  pointer-events: none;
  z-index: var(--z-negative);
  background: radial-gradient(circle, var(--color-accent-purple-glow) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   2. SITE HEADER (Grid-Driven Sticky Landmark)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  background-color: rgba(9, 9, 11, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: border-color var(--transition-snappy), box-shadow var(--transition-snappy);
}

.site-header:hover {
  border-bottom-color: rgba(167, 139, 250, 0.3);
}

.site-header__container {
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  padding-block: var(--space-sm);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-md);
}

/* Tactical Brand Identification */
.brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
  text-decoration: none;
}

.brand__name-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.brand__title {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-bold);
  letter-spacing: var(--letter-spacing-mono);
  color: var(--color-text-primary);
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-snappy);
}

.brand__bracket {
  color: var(--color-accent-pink);
  margin-inline: 0.15em;
  font-weight: var(--weight-bold);
}

.brand:hover .brand__title {
  color: var(--color-accent-pink);
}

.brand__role {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  color: var(--color-text-muted);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.brand__role .brand__bracket {
  color: var(--color-accent-purple);
  margin-inline: 0.15em;
  font-weight: var(--weight-bold);
}

/* System Status Dot */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  color: var(--color-status-online);
  background-color: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  user-select: none;
}

.status-badge__dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-status-online);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-status-glow);
  animation: pulse-dot 2.2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}

/* Navigation styles scoped to css/components/nav.css */

/* Header Action Buttons Slot */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* --------------------------------------------------------------------------
   3. MAIN CONTENT SHELL (CSS Grid Layout)
   -------------------------------------------------------------------------- */
.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  padding-block: var(--space-xl) var(--space-3xl);
  display: grid;
  row-gap: var(--space-3xl);
}

/* Section Common Container */
.section {
  display: grid;
  row-gap: var(--space-lg);
  position: relative;
}

/* Section Header Structure */
.section-header {
  display: grid;
  row-gap: var(--space-2xs);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: var(--space-sm);
  position: relative;
}

.section-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-pink), var(--color-accent-purple));
}

.section-header__tag {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-accent-purple);
  letter-spacing: var(--letter-spacing-mono);
  text-transform: uppercase;
}

.section-header__title {
  font-size: var(--font-size-2xl);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

.section-header__title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  width: 100%;
}

.section-header__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  max-width: 68ch;
}

.section-header__desc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
}

.section-header__desc-row .section-header__desc {
  margin: 0;
  flex: 1 1 auto;
}

.section-header__desc-row .btn--download {
  flex-shrink: 0;
  margin-left: auto;
}

@media (max-width: 640px) {
  .section-header__desc-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .section-header__desc-row .btn--download {
    margin-left: 0;
  }
}

/* --------------------------------------------------------------------------
   4. HERO COMPONENT LAYOUT (CSS Grid)
   -------------------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  align-items: center;
  gap: var(--space-xl);
  padding-block: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hero__status-line {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-accent-pink);
  letter-spacing: var(--letter-spacing-mono);
}

.hero__headline {
  font-size: var(--font-size-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

/* Word-by-word staggered entrance */
.hero__word {
  display: inline-block;
  opacity: 0;
  transform: translateY(18px);
  filter: blur(8px);
  animation: heroWordFadeInOut 0.75s cubic-bezier(0.42, 0, 0.58, 1) both;
  animation-delay: calc(var(--word-index, 0) * 0.085s + 0.12s);
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
}

/* Cyber Pink ↔ Cool Purple spectrum for highlighted accent words */
.hero__word--accent {
  background-image: linear-gradient(
    135deg,
    #F472B6 0%,
    #C084FC 25%,
    #A78BFA 50%,
    #EC4899 75%,
    #F472B6 100%
  );
  background-size: 250% 250%;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation:
    heroWordFadeInOut 0.75s cubic-bezier(0.42, 0, 0.58, 1) both,
    movingGradient 6s ease-in-out infinite;
  animation-delay:
    calc(var(--word-index, 0) * 0.085s + 0.12s),
    0s;
  will-change: transform, opacity, filter, background-position;
}

.hero__headline-accent {
  display: inline;
}

/* Smooth ease-in / ease-out word entrance keyframes */
@keyframes heroWordFadeInOut {
  0% {
    opacity: 0;
    transform: translateY(18px);
    filter: blur(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* Liquid-smooth back-and-forth gradient glide */
@keyframes movingGradient {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Accessibility: Respect user motion preference */
@media (prefers-reduced-motion: reduce) {
  .hero__word {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    animation: none !important;
  }

  .hero__word--accent {
    animation: none !important;
    background-position: 0% 50%;
    will-change: auto;
  }
}

.hero__bio {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 58ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

/* Hero HUD Telemetry Card (Tactical Hardware Aesthetic) */
.hero-telemetry {
  background-color: var(--color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  padding: var(--space-lg);
  display: grid;
  row-gap: var(--space-md);
  position: relative;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.8);
}

.hero-telemetry::before {
  content: "SYS.TELEM // v2.6";
  position: absolute;
  top: -10px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  background-color: var(--color-bg-base);
  padding: 0 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-accent-purple);
  letter-spacing: var(--letter-spacing-mono);
}

.hero-telemetry__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: var(--space-xs);
}

.hero-telemetry__title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-wide);
  font-weight: var(--weight-bold);
}

.hero-telemetry__grid {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: var(--space-sm);
}

.telemetry-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-xs);
  align-items: baseline;
  font-size: var(--font-size-xs);
}

.telemetry-item__key {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.telemetry-item__val {
  font-family: var(--font-mono);
  color: var(--color-text-primary);
}

.telemetry-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.telemetry-tag {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  color: var(--color-accent-purple);
  background: var(--color-accent-purple-subtle);
  border: 1px solid rgba(167, 139, 250, 0.25);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   5. LAB & CAPABILITIES GRID (CSS Grid)
   -------------------------------------------------------------------------- */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--space-md);
}

.lab-card {
  background-color: var(--color-bg-surface);
  border: var(--border-cyber);
  border-radius: 4px;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: var(--transition-snappy);
}

.lab-card:hover {
  border-color: var(--color-accent-pink);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -4px rgba(244, 114, 182, 0.15);
}

.lab-card__tag {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  color: var(--color-accent-pink);
  letter-spacing: var(--letter-spacing-mono);
}

.lab-card__title {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
}

.lab-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

/* --------------------------------------------------------------------------
   6. SITE FOOTER (Grid Landmark)
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background-color: var(--color-bg-subtle);
  padding-block: var(--space-2xl) var(--space-xl);
  position: relative;
}

.site-footer__container {
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer__brand-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-mono);
}

.site-footer__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  max-width: 44ch;
}

.site-footer__meta {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.site-footer__nav-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-accent-purple);
  letter-spacing: var(--letter-spacing-mono);
  text-transform: uppercase;
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-footer__link {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  transition: color var(--transition-snappy);
}

.site-footer__link:hover {
  color: var(--color-accent-pink);
}

.site-footer__bottom {
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--font-size-2xs);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   7. FLUID RESPONSIVE BREAKPOINTS (Mobile-First CSS Grid)
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .site-footer__container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .site-footer__container {
    grid-template-columns: 1fr;
  }

  .telemetry-item {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}