/* ==========================================================================
   min.css: 3D UI Components (Cards, Buttons, Canvas & Depth Layers)
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #FFFFFF;
  padding: 8px 16px;
  z-index: 2000;
}

.section-header {
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
  text-align: center;
  transform-style: preserve-3d;
}

.badge {
  display: inline-block;
  padding: 0.4rem 1.25rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, rgba(30, 64, 175, 0.05) 100%);
  border: 1px solid rgba(37, 99, 235, 0.3);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
  transform: translateZ(10px);
}

/* 3D Interactive Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  white-space: nowrap;
  transform-style: preserve-3d;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  position: relative;
}

.btn-primary { 
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); 
  color: #FFFFFF; 
  box-shadow: 0 8px 20px -4px rgba(37, 99, 235, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:active {
  transform: translateY(2px) scale(0.98);
  box-shadow: 0 4px 10px -2px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  box-shadow: 0 6px 16px -4px rgba(15, 23, 42, 0.08), inset 0 1px 0 #FFFFFF;
}

/* 3D Floating Cards */
.card {
  background: linear-gradient(145deg, #FFFFFF 0%, #F8FAFC 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-3d-sm);
  transform-style: preserve-3d;
  transition: transform 0.15s cubic-bezier(0.2, 0, 0.2, 1), box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  will-change: transform;
}

/* Depth Layers inside Cards */
.card-layer-3d-icon {
  transform: translateZ(30px);
  transition: transform 0.3s ease;
}

.card-layer-3d-title {
  transform: translateZ(20px);
  transition: transform 0.3s ease;
}

.card-layer-3d-body {
  transform: translateZ(10px);
  transition: transform 0.3s ease;
}

/* Hero & Background Canvas */
.hero-wrapper {
  padding-top: calc(var(--header-height) + clamp(2rem, 5vw, 4rem));
  padding-bottom: clamp(3rem, 6vw, 6rem);
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 70% 30%, #EFF6FF 0%, #F4F7FB 70%);
  transform-style: preserve-3d;
}

#hero-3d-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

.hero-content-3d {
  position: relative;
  z-index: 1;
  transform-style: preserve-3d;
}

.hero-title { 
  font-size: clamp(2.25rem, 5vw, 3.5rem); 
  transform: translateZ(25px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  height: var(--header-height);
  background-color: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  z-index: 1000;
  display: flex;
  align-items: center;
  box-shadow: 0 4px 20px -5px rgba(15, 23, 42, 0.05);
}

.nav-container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-heading); font-weight: 800; font-size: 1.25rem; color: var(--text-main); }
.brand-logo-img { height: 42px; width: auto; object-fit: contain; filter: drop-shadow(0 4px 6px rgba(0,0,0,0.08)); }

.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-link { font-weight: 500; font-size: 0.9rem; color: var(--text-muted); position: relative; }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px; }

/* Dropdown 3D Menu */
.nav-dropdown { position: relative; display: inline-block; }
.nav-dropdown .dropdown-toggle { background: none; border: none; font: inherit; cursor: pointer; display: flex; align-items: center; padding: 0; height: 100%; }
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #FFFFFF;
  min-width: 190px;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.12);
  border: 1px solid var(--border-color);
  z-index: 100;
  border-radius: var(--radius-sm);
  top: 100%; 
  left: 0;
  padding: 0.5rem 0;
  transform-origin: top center;
  animation: dropdown3D 0.25s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.dropdown-content .dropdown-item { color: var(--text-main); padding: 10px 16px; display: block; font-size: 0.95rem; font-weight: 500; }

.nav-actions { display: flex; align-items: center; gap: 1rem; }
.mobile-toggle { display: none; background: none; border: none; color: var(--text-main); cursor: pointer; padding: 0.5rem; }

/* Footer */
.footer { background-color: #FFFFFF; border-top: 1px solid var(--border-color); padding: 5rem 0 2rem 0; margin-top: 4rem; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 3rem; margin-bottom: 4rem; }
.footer-brand p { color: var(--text-muted); margin-top: 1rem; max-width: 420px; font-size: 0.95rem; }
.footer-title { font-size: 1rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--text-main); text-transform: uppercase;}
.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; }
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  text-align: center;
}
.footer-bottom a { color: var(--text-muted); text-decoration: underline; }

/* Social Icons */
.social-links { display: flex; gap: 1rem; margin-top: 1.5rem; }
.social-icon-btn {
  width: 42px; height: 42px;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-main);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  transform-style: preserve-3d;
}

/* Print Handling */
@page { size: A4 landscape; margin: 0; }
@media print {
  html, body {
    width: 297mm !important;
    height: 210mm !important;
    background: #FFFFFF !important;
    color: #111827 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  body * { visibility: hidden; }
  #certificateArea, #certificateArea * { visibility: visible; }
  #certificateArea {
    position: fixed;
    left: 10mm; top: 10mm;
    width: 277mm !important;
    height: 190mm !important;
    box-sizing: border-box;
    color: #111827 !important;
    background: #FFFFFF !important;
    padding: 20mm;
    border: 8px solid #0284C7;
    border-radius: 12px;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    text-align: center;
  }
  .no-print { display: none !important; }
}