/* ==========================================================================
   Zenithix - Limitless Digital Innovation
   Main Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;

  /* Zenith Brand Color Palette */
  --zenith-cyan: #00c6ff;
  --zenith-cyan-light: #4de1ff;
  --zenith-blue: #0072ff;
  --zenith-blue-deep: #0051ba;
  --zenith-navy: #0b1a3a;
  --zenith-dark: #050b18;
  --zenith-slate: #0f172a;

  /* Theme Defaults (Light Mode by default to match provided brand asset) */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f7ff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-color: rgba(226, 232, 240, 0.9);
  --border-glow: rgba(0, 198, 255, 0.35);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-glow: #0072ff;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 81, 186, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 40px -10px rgba(0, 114, 255, 0.12);
  --shadow-glow: 0 0 25px rgba(0, 198, 255, 0.25);

  --grid-pattern: radial-gradient(rgba(0, 114, 255, 0.08) 1.5px, transparent 1.5px);
}

/* Dark Mode Overrides */
[data-theme="dark"] {
  --bg-primary: #050b17;
  --bg-secondary: #091326;
  --bg-card: #0d1a33;
  --bg-card-hover: #122345;
  --bg-glass: rgba(9, 19, 38, 0.82);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 198, 255, 0.45);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-glow: #00c6ff;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.45);
  --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px rgba(0, 198, 255, 0.3);

  --grid-pattern: radial-gradient(rgba(0, 198, 255, 0.12) 1.5px, transparent 1.5px);
}

/* Base resets & typography */
html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
}

/* Background Grids & Ambient Lights */
.bg-tech-grid {
  background-image: var(--grid-pattern);
  background-size: 28px 28px;
}

.ambient-glow-1 {
  position: absolute;
  top: -150px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(0, 198, 255, 0.18) 0%, rgba(0, 114, 255, 0.08) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-2 {
  position: absolute;
  top: 40%;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 114, 255, 0.14) 0%, rgba(0, 198, 255, 0.06) 60%, transparent 75%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* Gradient Text */
.text-zenith-gradient {
  background: linear-gradient(135deg, #00c6ff 0%, #0072ff 60%, #00459e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .text-zenith-gradient {
  background: linear-gradient(135deg, #4de1ff 0%, #00a6ff 50%, #0072ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Brand Buttons */
.btn-primary {
  background: linear-gradient(135deg, #00c6ff 0%, #0072ff 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 18px rgba(0, 114, 255, 0.3);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(0, 198, 255, 0.45);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-weight: 600;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  border-color: var(--zenith-cyan);
  color: var(--zenith-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
}

.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-sm);
}

.glass-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.animate-float {
  animation: floatAnimation 5s ease-in-out infinite;
}

.animate-float-delayed {
  animation: floatAnimation 5s ease-in-out infinite 2.5s;
}

/* Pulse Glow */
@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

.animate-pulse-glow {
  animation: pulseGlow 4s ease-in-out infinite;
}

/* Interactive Calculator Styling */
.calc-card-active {
  border-color: #0072ff !important;
  background: rgba(0, 114, 255, 0.05) !important;
}

[data-theme="dark"] .calc-card-active {
  border-color: #00c6ff !important;
  background: rgba(0, 198, 255, 0.08) !important;
}

/* Navbar blur & sticky transition */
.nav-scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid var(--border-color);
}

/* Modal animation */
.modal-enter {
  opacity: 0;
  transform: scale(0.95);
}
.modal-enter-active {
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Custom modern scrollbar */
::-webkit-scrollbar {
  width: 9px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 6px;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #1e293b;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--zenith-blue);
}

/* Badge glow */
.badge-tech {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.825rem;
  font-weight: 600;
  background: rgba(0, 198, 255, 0.1);
  border: 1px solid rgba(0, 198, 255, 0.35);
  color: #0072ff;
}

[data-theme="dark"] .badge-tech {
  color: #00c6ff;
  background: rgba(0, 198, 255, 0.12);
  border-color: rgba(0, 198, 255, 0.4);
}

/* Section Title Highlight */
.section-subtitle {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--zenith-blue);
}

[data-theme="dark"] .section-subtitle {
  color: var(--zenith-cyan);
}