/* ========================================
   AI at Your Office — Shared Design System
   Chrome silver on black, premium aesthetic
   ======================================== */

:root {
  --bg: #000000;
  --bg-soft: #0a0a0a;
  --bg-elevated: #111111;
  --surface: rgba(20,20,20,0.7);
  --surface-hover: rgba(30,30,30,0.85);
  --border: rgba(180,180,180,0.12);
  --border-hover: rgba(220,220,220,0.4);
  --chrome-light: #f0f0f0;
  --chrome-mid: #b8b8b8;
  --chrome-dark: #6a6a6a;
  --text: #f5f5f5;
  --text-muted: #a8a8a8;
  --text-faint: #6b6b6b;
  --accent: #d4d4d4;
}

body {
  font-family: 'Assistant', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
}

/* Glass panel */
.glass {
  background: var(--surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
}

/* Chrome text gradient — for highlighted words */
.text-chrome {
  background: linear-gradient(135deg, #ffffff 0%, #d4d4d4 40%, #888888 70%, #d4d4d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Chrome accent line */
.chrome-line {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, #ffffff 30%, #888 70%, transparent 100%);
  border-radius: 1px;
}

/* Chrome button (primary) */
.btn-chrome {
  background: linear-gradient(135deg, #f5f5f5 0%, #c0c0c0 50%, #888888 100%);
  color: #0a0a0a;
  box-shadow: 0 4px 20px rgba(255,255,255,0.1), inset 0 1px 0 rgba(255,255,255,0.5);
  transition: all 0.3s ease;
}
.btn-chrome:hover {
  box-shadow: 0 8px 32px rgba(255,255,255,0.2), inset 0 1px 0 rgba(255,255,255,0.6);
  transform: translateY(-2px);
}

/* Outline button (secondary) */
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hover);
  transition: all 0.3s ease;
}
.btn-outline:hover {
  border-color: #ffffff;
  background: rgba(255,255,255,0.04);
}

/* Step circle (process steps) */
.step-number {
  background: linear-gradient(135deg, #f0f0f0, #888888 50%, #2a2a2a);
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 1rem;
  box-shadow: 0 4px 16px rgba(255,255,255,0.08), inset 0 1px 0 rgba(255,255,255,0.4);
}

/* Service card / feature card */
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.4s ease;
}
.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
}

/* Hero video styling (homepage only) */
.hero-video {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0.95) 100%),
    linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.95) 100%);
}

/* Selection */
::selection {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* FAQ details styling */
details.faq-card {
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color 0.3s ease;
}
details.faq-card[open] {
  border-color: var(--border-hover);
}
details.faq-card summary::-webkit-details-marker {
  display: none;
}