/* ============================================================
   IRONCORE HUB — Custom Stylesheet
   Tailwind CDN handles utilities; this file adds design tokens
   and custom component/animation classes.
   ============================================================ */

/* ---- Design Tokens (HSL channel values) ---- */
:root {
  --background: 220 33% 99%;
  --foreground: 224 35% 12%;
  --card: 0 0% 100%;
  --primary: 221 83% 53%;
  --primary-foreground: 0 0% 100%;
  --secondary: 220 22% 96%;
  --muted: 220 22% 96%;
  --muted-foreground: 223 10% 40%;
  --accent: 192 94% 44%;
  --border: 220 14% 91%;
  --input: 220 16% 86%;
  --ring: 221 83% 53%;
  --radius: 0.9rem;
}

/* ---- Base ---- */
html {
  scroll-behavior: smooth;
  font-family: 'DM Sans', ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
}

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

section[id],
#contact-form,
#main-content {
  scroll-margin-top: 80px;
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: 0;
  z-index: 1100;
  transform: translateY(-160%);
  border-radius: 0.75rem;
  border: 1px solid hsl(var(--primary));
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  padding: 0.6rem 0.95rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 14px 45px -18px hsl(var(--primary) / 0.28);
  transition: transform 160ms ease;
}
.skip-link:focus {
  transform: translateY(0.65rem);
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}
#main-content:focus { outline: none; }

/* ---- GMN Custom Classes ---- */
.gmn-display {
  font-family: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  letter-spacing: -0.04em;
}

.gmn-noise {
  background-image:
    radial-gradient(circle at 10% 10%, hsl(var(--primary) / 0.12), transparent 45%),
    radial-gradient(circle at 90% 25%, hsl(var(--accent) / 0.15), transparent 40%),
    radial-gradient(circle at 35% 90%, hsl(258 89% 65% / 0.12), transparent 42%),
    linear-gradient(to bottom, hsl(var(--background)), hsl(220 33% 97%));
}

.gmn-grid {
  background-image:
    linear-gradient(to right, hsl(var(--border)) 1px, transparent 1px),
    linear-gradient(to bottom, hsl(var(--border)) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(circle at 45% 20%, black 0%, transparent 65%);
  mask-image: radial-gradient(circle at 45% 20%, black 0%, transparent 65%);
  opacity: 0.45;
}

.gmn-glow {
  box-shadow:
    0 0 0 1px hsl(var(--border) / 0.7),
    0 10px 60px -30px hsl(var(--primary) / 0.65),
    0 18px 80px -40px hsl(var(--accent) / 0.45);
}

.gmn-hero-blob {
  position: absolute;
  top: -140px;
  right: -120px;
  width: 520px;
  height: 520px;
  border-radius: 9999px;
  background:
    radial-gradient(circle at 30% 30%, hsl(var(--accent) / 0.38), transparent 60%),
    radial-gradient(circle at 60% 55%, hsl(var(--primary) / 0.38), transparent 55%),
    radial-gradient(circle at 40% 70%, hsl(258 89% 65% / 0.30), transparent 55%);
  filter: blur(16px);
  opacity: 0.9;
  transform: translateZ(0);
  pointer-events: none;
}

@media (max-width: 768px) {
  .gmn-hero-blob {
    width: 320px;
    height: 320px;
    top: -90px;
    right: -90px;
  }
}

.gmn-fade-in {
  animation: gmnFadeIn 700ms ease-out both;
}
.gmn-fade-in-delay {
  animation: gmnFadeIn 700ms ease-out 100ms both;
}

@keyframes gmnFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  font-family: inherit;
  outline: none;
}
.btn:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; pointer-events: none; }

.btn-default {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}
.btn-default:hover { background: hsl(221 83% 47%); }

.btn-secondary {
  background: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}
.btn-secondary:hover { background: hsl(220 22% 92%); }

.btn-ghost {
  background: transparent;
  color: hsl(var(--foreground));
}
.btn-ghost:hover { background: hsl(var(--muted)); }

.btn-outline {
  background: transparent;
  border-color: hsl(var(--border));
  color: hsl(var(--foreground));
}
.btn-outline:hover { background: hsl(var(--muted)); }

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: 0.9rem;
}
.btn-sm {
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  border-radius: 0.55rem;
}
.btn-icon {
  padding: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.6rem;
}

/* ---- Inputs ---- */
.form-input,
.form-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid hsl(var(--input));
  border-radius: 0.75rem;
  background: transparent;
  font-size: 0.875rem;
  color: hsl(var(--foreground));
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
  line-height: 1.5;
  display: block;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: hsl(var(--muted-foreground));
}
.form-input:focus,
.form-textarea:focus {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 3px hsl(var(--ring) / 0.15);
}
.form-input:disabled,
.form-textarea:disabled { opacity: 0.6; cursor: not-allowed; }
.form-textarea {
  resize: vertical;
  min-height: 140px;
}

/* ---- Separator ---- */
.separator {
  height: 1px;
  background: hsl(var(--border));
  border: none;
  width: 100%;
}

/* ---- Mobile Menu ---- */
#mobile-menu {
  display: none;
  overflow: hidden;
}
#mobile-menu.open {
  display: block;
  animation: menuOpen 0.25s ease;
}
@keyframes menuOpen {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Portfolio Slideshow ---- */
.portfolio-slide { display: none; }
.portfolio-slide.active {
  display: grid;
  animation: slideIn 0.55s ease-in-out;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ---- FAQ Accordion ---- */
.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}
.faq-answer.open { grid-template-rows: 1fr; }
.faq-answer-inner { overflow: hidden; }
.chevron-icon { transition: transform 0.2s ease; }
.faq-item.open .chevron-icon { transform: rotate(180deg); }

/* ---- Scroll Fade-In ---- */
.scroll-fade {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.scroll-fade.visible {
  opacity: 1;
  transform: translateY(0);
}
.scroll-fade.delay-1 { transition-delay: 0.1s; }
.scroll-fade.delay-2 { transition-delay: 0.2s; }
.scroll-fade.delay-3 { transition-delay: 0.3s; }
.scroll-fade.delay-4 { transition-delay: 0.4s; }
.scroll-fade.delay-5 { transition-delay: 0.5s; }

/* ---- Toast ---- */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}
.toast {
  min-width: 280px;
  max-width: 380px;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  box-shadow: 0 24px 70px -26px hsl(var(--primary) / 0.30);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  animation: toastIn 0.3s ease;
  pointer-events: all;
}
.toast.destructive { border-color: hsl(0 84% 56% / 0.5); }
.toast-title { font-size: 0.875rem; font-weight: 600; color: hsl(var(--foreground)); }
.toast.destructive .toast-title { color: hsl(0 84% 56%); }
.toast-desc { font-size: 0.8125rem; color: hsl(var(--muted-foreground)); line-height: 1.5; }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ---- Service card hover ---- */
.service-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 70px -26px hsl(var(--primary) / 0.25);
  background: hsl(var(--primary) / 0.05);
  border-color: hsl(var(--primary) / 0.3);
}
.service-card:hover .service-icon {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  transform: scale(1.1);
}
.service-icon {
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.service-card:hover .service-title { color: hsl(var(--primary)); }

/* ---- Portfolio dot ---- */
.portfolio-dot {
  height: 6px;
  border-radius: 9999px;
  transition: width 0.3s ease, background 0.3s ease;
  cursor: pointer;
  border: none;
}
.portfolio-dot.active {
  width: 2rem;
  background: hsl(var(--primary));
}
.portfolio-dot.inactive {
  width: 0.5rem;
  background: hsl(var(--primary) / 0.2);
}
.portfolio-dot.inactive:hover {
  background: hsl(var(--primary) / 0.4);
}