/* ========================================================================
   Variables
   ======================================================================== */
:root {
  /* Color Palette - Tech / Modern */
  --color-bg: #05070b;
  --color-surface: #0e1118;
  --color-surface-elevated: #151924;

  --color-text: #f7f9ff;
  --color-text-muted: #a4acbb;

  --color-primary: #39d2ff;
  --color-primary-soft: rgba(57, 210, 255, 0.1);

  --color-success: #4ade80;
  --color-warning: #facc15;
  --color-danger: #fb7185;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */

  --line-height-tight: 1.1;
  --line-height-snug: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing Scale (px) */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  /* Shadows - subtle, modern */
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 14px 45px rgba(0, 0, 0, 0.35);
  --shadow-glow-primary: 0 0 0 1px rgba(57, 210, 255, 0.5), 0 0 35px rgba(57, 210, 255, 0.35);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 180ms ease-out;
  --transition-slow: 250ms ease-out;

  /* Layout */
  --container-max-width: 1120px;
}

/* ========================================================================
   Reset / Normalize
   ======================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

h1, h2, h3, h4, h5, h6,
p, figure, blockquote,
dl, dd {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

button, input, textarea, select {
  margin: 0;
  font: inherit;
  color: inherit;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

textarea {
  resize: vertical;
}

button {
  border: none;
  background: none;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ========================================================================
   Base Styles
   ======================================================================== */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: radial-gradient(circle at top left, #10203a 0, #05070b 45%, #020308 100%);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--gray-50);
}

h1 {
  font-size: clamp(2.25rem, 1.8rem + 1.5vw, 3rem);
  letter-spacing: 0.02em;
}

h2 {
  font-size: clamp(1.75rem, 1.5rem + 0.8vw, 2.25rem);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-top: var(--space-3);
  margin-bottom: 0;
  color: var(--color-text-muted);
}

strong, b {
  font-weight: 600;
}

code, pre {
  font-family: var(--font-mono);
}

a {
  position: relative;
  cursor: pointer;
  transition: color var(--transition-base), opacity var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

/* Subtle underline for interactive/tech feel */
a.link-underline {
  text-decoration: none;
}

a.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(57, 210, 255, 0.7), transparent);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

a.link-underline:hover::after,
a.link-underline:focus-visible::after {
  transform: scaleX(1);
}

/* Lists */
ul {
  list-style: none;
}

ul.list-disc {
  list-style: disc;
  padding-left: 1.25rem;
}

/* ========================================================================
   Accessibility & Focus
   ======================================================================== */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================================================
   Layout Utilities
   ======================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section--dense {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.text-center { text-align: center; }
.text-right { text-align: right; }

.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: rgba(57, 210, 255, 0.08);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ========================================================================
   Components
   ======================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-fast);
  background: linear-gradient(135deg, #1a2433, #10151f);
  color: var(--color-text);
}

.btn-primary {
  background: radial-gradient(circle at top left, #53e0ff 0, #1b9ed1 40%, #04668f 80%);
  border-color: rgba(57, 210, 255, 0.9);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-primary);
}

.btn-outline {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: rgba(15, 23, 42, 0.7);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn-icon {
  padding-inline: 0.9rem;
}

/* Inputs / Forms */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: var(--font-size-sm);
  color: var(--gray-100);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(15, 23, 42, 0.85);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              background var(--transition-base);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-500);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(57, 210, 255, 0.4);
  background: rgba(15, 23, 42, 0.98);
}

input:disabled,
textarea:disabled,
select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Cards - for services, capabilities, contact info */
.card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at top left, rgba(57, 210, 255, 0.12), transparent 55%),
              linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.8));
  border: 1px solid rgba(148, 163, 184, 0.28);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(57, 210, 255, 0.14), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card-header {
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.card-meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* Hero-specific utilities (for homepage intro) */
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 2px 10px 2px 4px;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(57, 210, 255, 0.5);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero-kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px rgba(57, 210, 255, 0.9);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

/* Simple grid highlight for 3D-print / tech panels */
.panel-tech {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.75));
  border: 1px solid rgba(148, 163, 184, 0.25);
  overflow: hidden;
}

.panel-tech::after {
  content: "";
  position: absolute;
  inset: -1px;
  background-image: linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.5;
  pointer-events: none;
}

/* Contact / info block styling */
.contact-info {
  display: grid;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
}

.contact-info dt {
  font-weight: 600;
  color: var(--gray-100);
}

.contact-info dd {
  margin: 0;
  color: var(--color-text-muted);
}

/* Status badges for production capabilities */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-pill--success {
  background: rgba(34, 197, 94, 0.09);
  color: var(--color-success);
}

.status-pill--warning {
  background: rgba(234, 179, 8, 0.09);
  color: var(--color-warning);
}

.status-pill--danger {
  background: rgba(248, 113, 113, 0.09);
  color: var(--color-danger);
}

/* Footer */
.footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer a {
  color: var(--color-primary);
}

.footer a:hover {
  opacity: 0.8;
}