/* ==========================================================================
   ALVACOLOR // OS UI (SINGLE-SCREEN HERO // ZERO SCROLL & ADAPTIVE LOGO)
   ========================================================================== */

/* Top OS Header */
.os-header {
  position: relative;
  width: 100%;
  max-width: 100vw;
  height: var(--header-h);
  padding: 10px 0;
  background: var(--header-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  box-sizing: border-box;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.os-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  box-sizing: border-box;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Brand Logo Vector Adaptability */
.brand-svg-img, .brand-logo-svg {
  height: 38px;
  width: auto;
  max-width: 210px;
  display: block;
  overflow: visible;
}

@media (min-width: 768px) {
  .brand-svg-img, .brand-logo-svg {
    height: 44px;
    max-width: 250px;
  }
}

/* Theme Adaptability for ALVA text */
.brand-logo-svg .logo-alva-txt {
  fill: #ffffff !important;
  transition: fill 0.25s ease;
}

[data-theme="light"] .brand-logo-svg .logo-alva-txt {
  fill: #000000 !important;
}

/* Status Pill */
.system-status-pill {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 5px 16px;
  background: var(--chip-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

@media (min-width: 980px) {
  .system-status-pill {
    display: flex;
  }
}

.status-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-slate);
}

.status-item strong {
  color: var(--text-white);
  font-weight: 700;
}

.status-item .orange-text {
  color: var(--alva-orange);
  font-weight: 700;
}

.status-divider {
  width: 1px;
  height: 12px;
  background: var(--border-subtle);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-terminal-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(0, 122, 255, 0.08);
  border: 1px solid rgba(0, 122, 255, 0.25);
  color: var(--alva-blue);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-terminal-trigger:hover {
  background: rgba(0, 122, 255, 0.2);
  border-color: var(--alva-blue);
  box-shadow: var(--glow-blue);
}

.nav-cta-btn {
  padding: 7px 14px !important;
  font-size: 0.78rem !important;
  min-height: auto !important;
  width: auto !important;
}

/* ==========================================================================
   SINGLE-SCREEN HERO
   ========================================================================= */
.hero-screen-wrap {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100vw;
  position: relative;
  overflow: hidden;
  padding: 10px 0;
  box-sizing: border-box;
}

.hero-section-single {
  width: 100%;
  text-align: center;
  box-sizing: border-box;
}

.hero-main-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 5.8vw, 3.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.8px;
  margin-bottom: 10px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-white);
  word-break: break-word;
}

.hero-sub-title {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.8vw, 1.8rem);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
  padding: 0 4px;
  word-break: break-word;
}

.hero-description {
  font-size: clamp(0.88rem, 1.6vw, 1.12rem);
  color: var(--text-slate);
  max-width: 680px;
  margin: 0 auto 22px;
  line-height: 1.5;
  padding: 0 8px;
  font-weight: 500;
  word-break: break-word;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 22px;
  width: 100%;
}

@media (min-width: 480px) {
  .hero-cta-group {
    flex-direction: row;
    gap: 16px;
    margin-bottom: 26px;
  }
}

/* Wrapper para posicionar la nube flotante */
.hero-cta-btn-wrap {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

/* Nube Flotante Persuasiva (Speech Bubble / Cloud) */
.game-teaser-cloud {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px) scale(0.96);
  width: 270px;
  padding: 10px 14px;
  background: rgba(13, 17, 28, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 133, 0, 0.55);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 133, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 50;
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.28s;
  box-sizing: border-box;
}

/* Flechita / Cola de la Nube (Speech Bubble Pointer) */
.game-teaser-cloud::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 7px 7px 0 7px;
  border-style: solid;
  border-color: rgba(255, 133, 0, 0.75) transparent transparent transparent;
}

.cloud-content {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  text-align: left;
}

.cloud-emoji {
  font-size: 1.4rem;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(255, 133, 0, 0.5));
  animation: floatEmoji 2s ease-in-out infinite alternate;
  flex-shrink: 0;
}

@keyframes floatEmoji {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-4px) rotate(-8deg); }
}

.cloud-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.75rem;
  line-height: 1.35;
  color: #e2e8f0;
}

.cloud-highlight {
  color: var(--alva-orange);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.2px;
}

/* Light Theme Adaptability para la Nube */
[data-theme="light"] .game-teaser-cloud {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(255, 133, 0, 0.7);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15), 0 4px 18px rgba(255, 133, 0, 0.2);
}

[data-theme="light"] .game-teaser-cloud::after {
  border-color: rgba(255, 133, 0, 0.85) transparent transparent transparent;
}

[data-theme="light"] .cloud-text {
  color: #000000;
  font-weight: 500;
}

/* Hover & Focus State */
.hero-cta-btn-wrap:hover .game-teaser-cloud,
.hero-cta-btn-wrap:focus-within .game-teaser-cloud {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

.btn-play-cta {
  background: var(--grad-orange) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 22px rgba(255, 133, 0, 0.45) !important;
  font-weight: 800 !important;
}

.hero-features-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
}

@media (min-width: 768px) {
  .hero-features-chips {
    gap: 8px;
  }
}

.chip-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--chip-bg);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-slate);
  transition: var(--transition);
}

@media (min-width: 768px) {
  .chip-tag {
    padding: 7px 15px;
    font-size: 0.78rem;
  }
}

.chip-tag:hover {
  background: rgba(255, 133, 0, 0.1);
  border-color: var(--alva-orange);
  color: var(--text-white);
}

/* Single Screen Footer */
.single-screen-footer {
  flex-shrink: 0;
  padding: 12px 0;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-slate);
  text-align: center;
  box-sizing: border-box;
}

.single-screen-footer .footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Terminal Drawer */
#terminal-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 380px;
  max-height: 85vh;
  background: rgba(5, 8, 18, 0.98);
  border-top: 2px solid var(--alva-orange);
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.85);
  border-radius: 16px 16px 0 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(20px);
  transform: translateY(105%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

@media (min-width: 600px) {
  #terminal-drawer {
    bottom: 24px;
    right: 24px;
    left: auto;
    width: 480px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 133, 0, 0.4);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.85), var(--glow-orange);
    transform: translateY(120%);
  }
}

#terminal-drawer.open {
  transform: translateY(0);
}

.term-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-slate);
}

.term-dots {
  display: flex;
  gap: 6px;
}

.term-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.term-body {
  flex-grow: 1;
  padding: 14px 16px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  color: #ffedd5;
}

.term-input-row {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.6);
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
}

.term-prompt {
  color: var(--alva-orange);
  margin-right: 8px;
  font-weight: 700;
}

.term-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
}