/* Utilities & Layout Helpers */

:root {
  /* Modern Black & Gold Luxury Theme */
  --bg: #000000;
  --bg-elevate: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --text: #FFFFFF;
  --text-secondary: #E5E5E5;
  --muted: #B8B8B8;
  --gold: #FFD700;
  --gold-dark: #D4AF37;
  --gold-light: #FFE87C;
  --gold-gradient: linear-gradient(135deg, #FFD700 0%, #FFA500 50%, #FFD700 100%);
  --ring: rgba(255, 215, 0, 0.3);
  --radius: 16px;
  --border: rgba(255, 215, 0, 0.2);
  --border-gold: rgba(255, 215, 0, 0.4);
  --shadow: 0 10px 30px rgba(0,0,0,0.5);
  --shadow-gold: 0 10px 30px rgba(255, 215, 0, 0.3);
  --accent: var(--gold);
  --accent-light: var(--gold-light);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  width: 100%;
  overflow-x: hidden;
}

body.bg {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.7;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Unified Site Container - Single Source of Truth */
.container,
.site-container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px;
  box-sizing: border-box;
}

/* Responsive padding */
@media (max-width: 960px) {
  .container,
  .site-container {
    padding-inline: 24px;
  }
}

@media (max-width: 768px) {
  .container,
  .site-container {
    padding-inline: 16px;
  }
}

/* Standardized Section Spacing */
.section {
  position: relative;
  padding-block: 96px;
}

@media (max-width: 768px) {
  .section {
    padding-block: 64px;
  }
}

@media (max-width: 480px) {
  .section {
    padding-block: 40px;
  }
}

.section-title {
  font-size: 28px;
  margin: 0 0 24px 0;
}

.section-subtitle {
  font-size: 18px;
  margin: 8px 0 8px 0;
}

.lead {
  font-size: 18px;
}

.muted { color: var(--muted); }
.small { font-size: 12px; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
}
.mini-grid img { aspect-ratio: 3/4; object-fit: cover; object-position: center; border-radius: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-elevate);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
  box-shadow: var(--shadow);
}

.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn:focus-visible { outline: 2px solid var(--muted); outline-offset: 2px; }

.btn-primary { 
  background: var(--gold-gradient);
  color: #000000;
  border: 1px solid var(--gold);
  box-shadow: var(--shadow-gold);
  font-weight: 600;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #FFE87C 0%, #FFD700 50%, #FFE87C 100%);
  box-shadow: 0 14px 40px rgba(255, 215, 0, 0.4);
  transform: translateY(-2px);
}
.btn-ghost { background: transparent; }
/* WhatsApp button - make it smaller */
.nav-right .btn-wa,
.site-header .btn-wa,
.btn.btn-wa { 
  background: var(--bg-elevate);
  padding: 6px 12px !important;
  font-size: 14px !important;
  gap: 6px !important;
  min-height: auto !important;
  height: auto !important;
}
.nav-right .btn-wa svg,
.site-header .btn-wa svg,
.btn.btn-wa svg {
  width: 16px !important;
  height: 16px !important;
  flex-shrink: 0;
}
.nav-right .btn-wa img,
.site-header .btn-wa img,
.btn.btn-wa img {
  width: 18px !important;
  height: 18px !important;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

/* Mobile styles for WhatsApp button */
@media (max-width: 960px) {
  .nav-right .btn-wa,
  .site-header .btn-wa {
    padding: 5px 10px !important;
    font-size: 13px !important;
    gap: 5px !important;
  }
  .nav-right .btn-wa svg,
  .site-header .btn-wa svg {
    width: 14px !important;
    height: 14px !important;
  }
  /* WhatsApp PNG images - keep larger size on mobile for better visibility */
  .nav-right .btn-wa img,
  .site-header .btn-wa img {
    width: 22px !important;
    height: 22px !important;
  }
  /* Hide text on very small screens, show only icon */
  @media (max-width: 480px) {
    .nav-right .btn-wa span {
      display: none;
    }
  }
}
.btn-block { width: 100%; }

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 14px 40px rgba(255, 215, 0, 0.2);
  border-color: var(--border-gold);
}

.card-link { color: var(--text); text-decoration: underline; }

/* Flipable Solution Cards */
.solution-card-flip {
  perspective: 1000px;
  height: 280px;
}
.solution-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}
.solution-card-flip:hover .solution-card-inner {
  transform: rotateY(180deg);
}
.solution-card-front,
.solution-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow);
  transition: border-color 0.3s ease;
}
.solution-card-back {
  transform: rotateY(180deg);
}
.solution-card-flip:hover .solution-card-front,
.solution-card-flip:hover .solution-card-back {
  border-color: var(--border-gold);
}
.solution-icon-large {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.solution-icon-large img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}
.solution-card-front h3 {
  margin: 0;
  font-size: 28px;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}
.solution-card-back p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.solution-card-back .hero-ctas {
  width: 100%;
  display: flex;
  justify-content: center;
}

@media (max-width: 960px) {
  .solution-card-flip {
    height: 260px;
  }
  .solution-card-front,
  .solution-card-back {
    padding: 24px 20px;
  }
  .solution-icon-large {
    width: 70px;
    height: 70px;
    margin-bottom: 16px;
  }
  .solution-icon-large img {
    width: 56px;
    height: 56px;
  }
  .solution-card-front h3 {
    font-size: 24px;
  }
}

.icon-circle {
  width: 40px; height: 40px; border-radius: 999px; display: grid; place-items: center;
  background: var(--bg-secondary); 
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}
.card:hover .icon-circle {
  border-color: var(--border-gold);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg-elevate);
  border: 1px solid var(--border);
  margin-inline-end: 8px;
}

.divider { color: var(--muted); }

/* Responsive */
@media (max-width: 960px) {
  .cards-grid, .projects-grid { grid-template-columns: 1fr 1fr; }
  .mini-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 640px) {
  .cards-grid, .projects-grid, .mini-grid { grid-template-columns: 1fr; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* Skip link */
.skip-link {
  position: absolute; left: 8px; top: -40px; background: var(--bg-elevate); color: var(--text);
  padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border);
}
.skip-link:focus { top: 8px; }