/* iservicex portal — tech-forward static theme */

:root {
  --bg-deep: #060a12;
  --bg-surface: #0c1220;
  --bg-card: rgba(14, 22, 40, 0.72);
  --border: rgba(0, 212, 255, 0.12);
  --border-hover: rgba(0, 212, 255, 0.35);
  --text: #e8edf5;
  --text-muted: #8b9cb8;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --accent-glow: rgba(0, 212, 255, 0.4);
  --purple: #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.35);
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 72px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-deep);
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Background canvas */
#grid-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.scanline {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  opacity: 0.4;
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--bg-deep);
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(6, 10, 18, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(6, 10, 18, 0.92);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: block;
}

.logo-text {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
  color: var(--accent);
}

.nav-cta {
  padding: 0.5rem 1.1rem !important;
  border: 1px solid var(--border-hover) !important;
  border-radius: 8px;
  color: var(--accent) !important;
  background: var(--accent-dim);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

/* Hero */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  margin: 0 0 2rem;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent), #00a8cc);
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--border-hover);
}

.btn-ghost:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin: 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--border);
}

.stat {
  margin: 0;
}

.stat dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.stat dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.hero-glow {
  position: absolute;
  top: 20%;
  right: -10%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse, var(--purple-glow) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(60px);
}

/* Sections */
.section {
  position: relative;
  z-index: 2;
  padding: 6rem 0;
}

.section-dark {
  background: linear-gradient(180deg, transparent, rgba(12, 18, 32, 0.6) 20%, rgba(12, 18, 32, 0.6) 80%, transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.section-desc {
  color: var(--text-muted);
  max-width: 42rem;
  margin: 0 auto;
  font-size: 1.05rem;
  text-wrap: pretty;
}

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-hover);
}

.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 10px;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.6rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Architecture diagram */
.arch-diagram {
  max-width: 720px;
  margin: 0 auto 2rem;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.arch-layer {
  text-align: center;
}

.arch-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.arch-node {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.arch-node:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 20px var(--accent-dim);
}

.arch-node-primary {
  border-color: var(--border-hover);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(139, 92, 246, 0.08));
}

.arch-node-highlight {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-dim);
}

.arch-node-optional {
  opacity: 0.7;
  border-style: dashed;
}

.arch-node-sm {
  font-size: 0.8rem;
  padding: 0.5rem 0.9rem;
}

.arch-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.arch-connector {
  display: flex;
  justify-content: center;
  padding: 0.6rem 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

.arch-connector span {
  padding: 0.15rem 0.5rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.arch-principles {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 600px;
  margin-inline: auto;
}

.arch-principles li {
  position: relative;
  padding: 0.6rem 0 0.6rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.arch-principles li:last-child { border-bottom: none; }

.arch-principles li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.arch-principles code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

/* Tech stack */
.stack-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.stack-item {
  padding: 0.6rem 1.1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color var(--transition), transform var(--transition);
}

.stack-item:hover {
  border-color: var(--border-hover);
  transform: scale(1.03);
}

.stack-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text);
}

/* Deploy cards */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.deploy-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.deploy-card:hover {
  border-color: var(--border-hover);
}

.deploy-card h3 {
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
}

.deploy-card p {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.deploy-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  padding: 0.3rem 0.6rem;
  background: var(--accent-dim);
  border-radius: 6px;
}

/* CTA */
.cta-section {
  padding-bottom: 8rem;
}

.cta-box {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(139, 92, 246, 0.06));
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 60%);
  opacity: 0.15;
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  margin: 0 0 1rem;
  position: relative;
}

.cta-box > p:not(.cta-note) {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2rem;
  position: relative;
}

.cta-actions {
  position: relative;
}

.cta-box .cta-note {
  margin: 2.5rem auto 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  position: relative;
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 2;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: rgba(6, 10, 18, 0.9);
}

.footer-inner {
  text-align: center;
}

.footer-line {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.footer-sep {
  opacity: 0.5;
}

.footer-line a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-line a:hover,
.footer-line a:focus-visible {
  color: var(--accent);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .feature-grid,
  .deploy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    background: rgba(6, 10, 18, 0.98);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu li { width: 100%; }

  .nav-menu a {
    display: block;
    padding: 0.85rem 1.5rem;
  }

  .feature-grid,
  .deploy-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
}