/* Ryan Arche Server — Layout System v2.0 */

/* ===== CONTAINER ===== */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ===== SECTION ===== */
.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
}

.section--tight {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.section--alt {
  background: var(--bg-secondary);
}

.section--dark {
  background: var(--bg-primary);
}

/* ===== SECTION HEADER ===== */
.section__header {
  text-align: left;
  margin-bottom: var(--space-4xl);
}

.section__header .text-eyebrow {
  display: block;
  margin-bottom: var(--space-md);
  color: var(--cyan);
  letter-spacing: var(--tracking-widest);
}

.section__header h2 {
  font-family: var(--font-display);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-lg);
}

.section__header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0;
  font-size: 1.125rem;
  line-height: var(--leading-relaxed);
}

/* Left-aligned section header variant */
.section__header--left {
  text-align: left;
}

.section__header--left p {
  margin-left: 0;
}

/* ===== TECH GRID BACKGROUND ===== */
.grid-bg {
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

/* ===== GRIDS ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.grid-2x3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ===== FLEX UTILITIES ===== */
.flex            { display: flex; }
.flex-col        { flex-direction: column; }
.flex-wrap       { flex-wrap: wrap; }
.items-center    { align-items: center; }
.items-start     { align-items: flex-start; }
.items-end       { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.gap-sm          { gap: var(--space-sm); }
.gap-md          { gap: var(--space-md); }
.gap-lg          { gap: var(--space-lg); }
.gap-xl          { gap: var(--space-xl); }
.gap-2xl         { gap: var(--space-2xl); }

/* ===== SECTION DIVIDER ===== */
.divider {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 0;
}

.divider--accent {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.3;
  border: none;
}

/* ===== HERO LAYOUT ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-4xl) var(--container-padding);
  padding-top: calc(80px + var(--space-4xl));
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.spline-hero-iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 140%;
  height: 140%;
  transform: translate(-50%, -50%);
  border: none;
  pointer-events: none;
}

@media (max-width: 768px) {
  .spline-hero-iframe {
    width: 200%;
    height: 200%;
    transform: translate(-50%, -50%);
    opacity: 0.6;
    pointer-events: none;
  }
}

.hero__bg canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__content {
  position: relative;
  z-index: 10;
  max-width: 860px;
  width: 100%;
  pointer-events: none;
}
.hero__content a,
.hero__content button,
.hero__content .btn {
  pointer-events: auto;
}

/* ===== STAT GRID ===== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
}

.stat-block {
  padding: var(--space-xl) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
}

/* ===== PRODUCT DETAIL SPLIT LAYOUT ===== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.product-detail--reverse {
  direction: rtl;
}

.product-detail--reverse > * {
  direction: ltr;
}

/* ===== SPLIT SECTION (generic 2-col) ===== */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

/* ===== SPEC TABLE LAYOUT ===== */
.spec-section {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ===== PARTNER LOGOS ROW ===== */
.partner-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: center;
}

/* ===== COMPARISON TABLE LAYOUT ===== */
.comparison-table {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.comparison-table__header {
  display: contents;
}

.comparison-table__row {
  display: contents;
}

.comparison-table__cell {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.comparison-table__cell--label {
  background: var(--bg-secondary);
  font-size: var(--text-small);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
}

.comparison-table__head {
  padding: var(--space-xl);
  text-align: center;
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  border-bottom: 2px solid var(--border);
}

.comparison-table__head--primary {
  background: linear-gradient(160deg, var(--accent-subtle), transparent);
  border-top: 2px solid var(--accent);
}

/* ===== SIDEBAR LAYOUT OFFSET — removed; sidebar hidden on desktop ===== */

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Tablet */
@media (max-width: 1024px) {
  .grid-3    { grid-template-columns: repeat(2, 1fr); }
  .grid-4    { grid-template-columns: repeat(2, 1fr); }
  .grid-2x3  { grid-template-columns: repeat(2, 1fr); }
  .split-section { grid-template-columns: 1fr; gap: var(--space-xl); }
  .product-detail {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .product-detail--reverse { direction: ltr; }
  /* Mobile: gallery/3D first, then text */
  .product-detail .product-detail__text { order: 2; }
  .product-detail .product-gallery { order: 1; }
  /* Comparison: 2x3 card grid on mobile */
  .comparison-scroll-wrap {
    overflow-x: hidden !important;
  }
  /* Hide the original table entirely */
  .comparison-cols {
    display: none !important;
  }
  .comparison-table__row:nth-child(even) .comparison-table__cell:nth-child(2)::before { content: "수냉"; }
  .comparison-table__row:nth-child(even) .comparison-table__cell:nth-child(3)::before { content: "공랭"; }
  .comparison-table__row:nth-child(even) .comparison-table__cell:nth-child(4)::before { content: "클라우드"; }
}

/* Mobile */
@media (max-width: 768px) {
  .grid-2   { grid-template-columns: 1fr; }
  .grid-3   { grid-template-columns: 1fr; }
  .grid-4   { grid-template-columns: repeat(2, 1fr); }
  .grid-2x3 { grid-template-columns: 1fr; }
  .hero {
    min-height: 100vh;
    min-height: 100dvh;
    padding-top: calc(64px + var(--space-xl));
    padding-bottom: var(--space-3xl);
  }
  .hero__content {
    max-width: 100%;
  }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .grid-4   { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
}