/* ============================================================
   TOPPERS COMPUTER ACADEMY - ULTRA-CLEAN 3D DESIGN SYSTEM
   Bilaspur, Chhattisgarh | Director: Sunil Sir
   Optimized Typography, Optical Alignment & Modern 3D Aesthetics
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=Poppins:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,600&family=Mukta:wght@400;500;600;700;800&display=swap');

:root {
  --primary-dark: #060e1a;
  --primary-navy: #0b1f3a;
  --navy-card: #0f274a;
  --electric-blue: #2563eb;
  --electric-cyan: #06b6d4;
  --gold-3d: #f59e0b;
  --emerald-3d: #10b981;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --font-main: 'Plus Jakarta Sans', 'Poppins', system-ui, -apple-system, sans-serif;
  --font-hindi: 'Mukta', 'Poppins', system-ui, sans-serif;

  /* Refined Lighting & Shadows */
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 0 0 1px rgba(226, 232, 240, 0.8);
  --shadow-hover: 0 14px 30px -4px rgba(37, 99, 235, 0.12), 0 0 0 1px rgba(37, 99, 235, 0.3);
  --shadow-dark-card: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: #f8fafc;
  color: var(--slate-800);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  line-height: 1.35;
}

/* Devanagari Hindi Text & Headings */
.font-hindi,
h1.font-hindi,
h2.font-hindi,
h3.font-hindi,
h4.font-hindi,
p.font-hindi,
span.font-hindi {
  font-family: var(--font-hindi) !important;
  letter-spacing: 0px !important;
  line-height: 1.45 !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #0b1f3a;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #2563eb, #06b6d4);
  border-radius: 6px;
}

/* 3D CARDS & PERSPECTIVE */
.perspective-container {
  perspective: 1200px;
}

.card-3d {
  background: #ffffff;
  border-radius: 1.25rem;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
}

.card-3d:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(37, 99, 235, 0.3);
}

/* Glassmorphism */
.glass-3d {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.glass-3d-dark {
  background: linear-gradient(145deg, rgba(15, 39, 74, 0.9) 0%, rgba(6, 14, 26, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-dark-card);
}

/* Refined 3D Tactile Buttons */
.btn-3d-primary {
  background: linear-gradient(180deg, #3b82f6 0%, #1d4ed8 100%);
  color: #ffffff;
  border-radius: 0.875rem;
  padding: 0.85rem 1.6rem;
  font-weight: 700;
  box-shadow: 0 4px 0 #1e3a8a, 0 10px 20px rgba(30, 58, 138, 0.3);
  transition: all 0.15s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-3d-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #1e3a8a, 0 14px 24px rgba(30, 58, 138, 0.4);
  filter: brightness(1.06);
}

.btn-3d-primary:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #1e3a8a, 0 4px 8px rgba(30, 58, 138, 0.2);
}

.btn-3d-gold {
  background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
  color: #07111e;
  border-radius: 0.875rem;
  padding: 0.85rem 1.6rem;
  font-weight: 800;
  box-shadow: 0 4px 0 #b45309, 0 10px 20px rgba(245, 158, 11, 0.35);
  transition: all 0.15s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-3d-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #b45309, 0 14px 25px rgba(245, 158, 11, 0.45);
  filter: brightness(1.06);
}

.btn-3d-gold:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #b45309, 0 4px 8px rgba(245, 158, 11, 0.2);
}

.btn-3d-emerald {
  background: linear-gradient(180deg, #10b981 0%, #047857 100%);
  color: #ffffff;
  border-radius: 0.875rem;
  padding: 0.85rem 1.6rem;
  font-weight: 700;
  box-shadow: 0 4px 0 #065f46, 0 10px 20px rgba(16, 185, 129, 0.3);
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-3d-emerald:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #065f46, 0 14px 22px rgba(16, 185, 129, 0.4);
}

.btn-3d-emerald:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #065f46;
}

/* 3D Icon Boxes */
.icon-3d-box {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  color: #1d4ed8;
  box-shadow: 0 6px 14px -3px rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.9);
  transition: all 0.25s ease;
}

.card-3d:hover .icon-3d-box {
  transform: scale(1.08) rotate(3deg);
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 10px 20px -3px rgba(37, 99, 235, 0.4);
}

/* Dynamic Gradient Text (Clean & Sharp) */
.text-gradient-gold {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #38bdf8 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Ambient Mouse Spotlight */
.ambient-spotlight {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0) 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: opacity 0.3s ease;
}

/* Background Mesh */
.bg-mesh-dark {
  background-color: #060e1a;
  background-image: 
    radial-gradient(at 15% 15%, rgba(37, 99, 235, 0.25) 0px, transparent 50%),
    radial-gradient(at 85% 85%, rgba(245, 158, 11, 0.18) 0px, transparent 50%),
    radial-gradient(at 50% 50%, rgba(6, 182, 212, 0.12) 0px, transparent 60%);
}

/* Header Scrolled */
.header-scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8) !important;
}

/* Mobile Sticky Bar */
.mobile-sticky-bar-3d {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 45;
  background: rgba(11, 31, 58, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.65rem 0.85rem;
  box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.25);
}

/* Multi-Step Wizard Chips */
.step-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  border-radius: 0.75rem;
  background: #f1f5f9;
  color: #64748b;
  font-size: 0.75rem;
  font-weight: 700;
  transition: all 0.25s ease;
}

.step-item.active {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.step-item.completed {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
}

/* Modal Overlay */
.modal-overlay {
  background: rgba(6, 14, 26, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Animations */
@keyframes float3D {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.animate-float-3d {
  animation: float3D 4.5s ease-in-out infinite;
}

.animate-float-reverse {
  animation: float3D 5.5s ease-in-out 1s infinite reverse;
}

/* Clean Category Scroll Tabs */
.tabs-scroll-container {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
  -ms-overflow-style: none;
  justify-content: flex-start;
}

.tabs-scroll-container::-webkit-scrollbar {
  display: none;
}

@media (min-width: 1024px) {
  .tabs-scroll-container {
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* Strict Single-Page Print Stylesheet */
@media print {
  @page {
    size: A4 portrait;
    margin: 8mm 8mm 8mm 8mm;
  }

  html, body {
    width: 100% !important;
    height: auto !important;
    min-height: 0 !important;
    max-height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
    color: #000000 !important;
    overflow: hidden !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  /* Completely remove ALL website elements from print layout flow */
  body > *:not(#printable-admission-slip) {
    display: none !important;
  }

  header, footer, nav, section, main, .modal-overlay, #ambient-mouse-glow, .mobile-sticky-bar-3d, canvas, #hero-3d-canvas {
    display: none !important;
  }

  #printable-admission-slip {
    display: block !important;
    position: static !important;
    visibility: visible !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 auto !important;
    padding: 0 !important;
    page-break-after: avoid !important;
    page-break-before: avoid !important;
    page-break-inside: avoid !important;
    break-inside: avoid !important;
  }

  #printable-admission-slip * {
    visibility: visible !important;
  }
}