/* =============================================================================
   gemas.css — SINERGÍA Gemas Section + Modal
   ============================================================================= */

/* ── Section shell ────────────────────────────────────────────────────────── */
.gemas {
  background: var(--color-surface);
  padding: var(--section-pad) var(--container-pad);
  position: relative;
  overflow: hidden;
}

/* Subtle grid texture */
.gemas::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-surface-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-surface-2) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.15;
  pointer-events: none;
}

/* ── Cards grid ───────────────────────────────────────────────────────────── */
.gemas__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-8);
  position: relative;
  z-index: 1;
}

/* ── Individual gem card ──────────────────────────────────────────────────── */
.gem-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--sp-4);
  border-top: 4px solid var(--gem-color, var(--color-gold));
  cursor: pointer;
  transition:
    transform var(--dur-normal) var(--ease-spring),
    box-shadow var(--dur-normal) var(--ease-spring),
    border-top-color var(--dur-normal) var(--ease-in-out);
  position: relative;
  overflow: hidden;
  text-align: left;
  /* Reset button styles if used as <button> */
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border-left: none;
  border-right: none;
  border-bottom: none;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

/* Color glow wash behind the card */
.gem-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top right,
    var(--gem-color, var(--color-gold)) 0%,
    transparent 60%
  );
  opacity: 0.05;
  transition: opacity var(--dur-slow) var(--ease-smooth);
  pointer-events: none;
}

.gem-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  border-top-color: var(--gem-color, var(--color-gold));
}

.gem-card:hover::before {
  opacity: 0.12;
}

/* Focus state for keyboard navigation */
.gem-card:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
}

/* ── Number badge ─────────────────────────────────────────────────────────── */
.gem-card__number-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gem-color, var(--color-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-3);
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.gem-card__number {
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-lg);
  line-height: 1;
}

/* ── Icon ─────────────────────────────────────────────────────────────────── */
.gem-card__icon {
  font-size: 1.5rem;
  margin-bottom: var(--sp-2);
  display: block;
  line-height: 1;
}

/* ── Gem name ─────────────────────────────────────────────────────────────── */
.gem-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-text);
  margin-bottom: var(--sp-1);
  margin-top: 0;
  line-height: 1.2;
}

/* ── Philosophy tagline ───────────────────────────────────────────────────── */
.gem-card__philosophy {
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-style: italic;
  margin-bottom: var(--sp-3);
  line-height: 1.4;
}

/* ── Problem indicator ────────────────────────────────────────────────────── */
.gem-card__problem {
  color: var(--color-danger);
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  margin-bottom: var(--sp-1);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-1);
  line-height: 1.4;
}

.gem-card__problem::before {
  content: "⚠";
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* ── Solution indicator ───────────────────────────────────────────────────── */
.gem-card__solution {
  color: var(--color-success);
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-1);
  line-height: 1.4;
}

.gem-card__solution::before {
  content: "✓";
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}

/* ─────────────────────────────────────────────────────────────────────────── */
/*  GEM MODAL                                                                   */
/* ─────────────────────────────────────────────────────────────────────────── */

.gem-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  box-sizing: border-box;
}

/* Hide with [hidden] attribute */
.gem-modal[hidden] {
  display: none !important;
}

/* ── Backdrop ─────────────────────────────────────────────────────────────── */
.gem-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  cursor: pointer;
}

/* ── Panel ────────────────────────────────────────────────────────────────── */
.gem-modal__panel {
  position: relative;
  z-index: 1;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  max-width: 600px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  border: 1px solid var(--gem-color, var(--color-gold));
  box-shadow: var(--shadow-lg), 0 0 60px rgba(0, 0, 0, 0.6);
  /* Scrollbar styling */
  scrollbar-width: thin;
  scrollbar-color: var(--color-surface-2) transparent;
  /* Entrance animation */
  animation: modal-enter var(--dur-normal) var(--ease-spring);
}

@keyframes modal-enter {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(16px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.gem-modal__panel::-webkit-scrollbar {
  width: 6px;
}

.gem-modal__panel::-webkit-scrollbar-track {
  background: transparent;
}

.gem-modal__panel::-webkit-scrollbar-thumb {
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
}

/* ── Close button ─────────────────────────────────────────────────────────── */
.gem-modal__close {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  background: var(--color-surface-2);
  border: none;
  color: var(--color-text);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--dur-fast) var(--ease-in-out),
    color var(--dur-fast) var(--ease-in-out);
  z-index: 2;
  flex-shrink: 0;
  font-family: inherit;
  line-height: 1;
}

.gem-modal__close:hover {
  background: var(--color-gold);
  color: var(--color-bg);
}

.gem-modal__close:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* ── Prev / Next navigation ───────────────────────────────────────────────── */
.gem-modal__nav {
  position: absolute;
  top: 50%;
  background: var(--color-surface-2);
  border: none;
  color: var(--color-text);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 1.2rem;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--dur-fast) var(--ease-in-out),
    transform var(--dur-fast) var(--ease-spring);
  z-index: 2;
  font-family: inherit;
  line-height: 1;
}

.gem-modal__nav:hover {
  background: var(--color-gold);
  color: var(--color-bg);
}

.gem-modal__nav:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

.gem-modal__prev {
  left: -20px;
}

.gem-modal__next {
  right: -20px;
}

/* ── Modal body text ──────────────────────────────────────────────────────── */
.gem-modal__body {
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.7;
}

.gem-modal__body h3,
.gem-modal__body h4 {
  color: var(--color-text);
  font-family: var(--font-display);
  margin-top: var(--sp-4);
  margin-bottom: var(--sp-2);
}

.gem-modal__body p {
  margin-top: 0;
  margin-bottom: var(--sp-3);
}

.gem-modal__body strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Responsive — tablet (2 cols) ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .gemas__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Responsive — mobile (1 col) ─────────────────────────────────────────── */
@media (max-width: 600px) {
  .gemas__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-3);
  }

  /* On mobile move nav buttons to top/bottom instead of sides */
  .gem-modal__prev,
  .gem-modal__next {
    display: none;
  }

  /* Mobile top/bottom nav alternative */
  .gem-modal__panel {
    padding: var(--sp-5);
    max-height: 90vh;
    width: 95%;
  }
}