/* ═══════════════════════════════════════════
   A1 WINDOWS — Custom Styles
   Tailwind CDN handles utility classes;
   this file covers gradients, animations,
   patterns, and component-specific styles.
   ═══════════════════════════════════════════ */

/* ─── Base ─── */
html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

/* ─── Navbar height utility ─── */
.h-18 {
  height: 4.5rem;
}

/* ─── Hero Gradient ─── */
.hero-gradient {
  background: linear-gradient(
    135deg,
    #0f172a 0%,
    #1e3a5f 35%,
    #1e40af 65%,
    #2563eb 100%
  );
}

/* ─── CTA Section Gradient ─── */
.cta-gradient {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(30, 64, 175, 0.2) 0%, transparent 50%);
}

/* ─── Grid pattern overlay ─── */
.hero-grid-pattern {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ─── Text gradient for hero emphasis ─── */
.text-gradient-light {
  background: linear-gradient(135deg, #93c5fd 0%, #bfdbfe 50%, #dbeafe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Brand gradient for "Windows" wordmark ─── */
.text-gradient-brand {
  background: linear-gradient(135deg, #2563eb 0%, #60a5fa 50%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Lighter variant for footer (dark background) */
.text-gradient-brand-light {
  background: linear-gradient(135deg, #60a5fa 0%, #93c5fd 50%, #dbeafe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Hamburger menu animation ─── */
.hamburger-line {
  display: block;
  position: absolute;
  width: 20px;
  height: 2px;
  background-color: #1e293b;
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-line-1 {
  transform: translateY(-6px);
}

.hamburger-line-2 {
  transform: translateY(0);
}

.hamburger-line-3 {
  transform: translateY(6px);
}

/* Active state */
.menu-open .hamburger-line-1 {
  transform: rotate(45deg);
}

.menu-open .hamburger-line-2 {
  opacity: 0;
  transform: scaleX(0);
}

.menu-open .hamburger-line-3 {
  transform: rotate(-45deg);
}

/* ─── Mobile Menu ─── */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
  max-height: 400px;
}

/* ─── Scroll-triggered reveal animations ─── */
.reveal-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-up:nth-child(2) { transition-delay: 0.08s; }
.reveal-up:nth-child(3) { transition-delay: 0.16s; }
.reveal-up:nth-child(4) { transition-delay: 0.24s; }

/* ─── Navbar shadow on scroll ─── */
.navbar-scrolled {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* ─── Service card image placeholder sizes ─── */
.h-18 {
  height: 4.5rem;
}

/* ─── Focus styles ─── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ─── Form input autofill styling ─── */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill {
  -webkit-box-shadow: 0 0 0px 1000px #f8fafc inset;
  -webkit-text-fill-color: #0f172a;
  transition: background-color 5000s ease-in-out 0s;
}

/* ─── Smooth hover for service cards ─── */
.service-card {
  will-change: transform, box-shadow;
}

/* ─── Selection color ─── */
::selection {
  background-color: #2563eb;
  color: white;
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  .reveal-up {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Custom scrollbar (webkit) ─── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}