/**
 * Tech Sutro — Base Styles, Layout & Shared Components
 * Bold-tech glass foundation: aurora canvas, frosted surfaces,
 * gradient accents and soft glow. Loaded right after variables.css.
 */

@import 'variables.css';


/* ==================================================================
   GLOBAL RESET
   ================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}


/* ==================================================================
   DOCUMENT
   ================================================================== */

html {
  font-size: 16px;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  scroll-behavior: smooth;

  background-color: var(--bg-page);
  color: var(--text-primary);
}

/*
 * Aurora canvas — three soft colour fields layered over the base
 * page colour give the "bold tech" ambience in both themes.
 */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base-size);
  line-height: var(--leading-base);

  color: var(--text-primary);

  background-color: var(--bg-page);
  background-image:
    radial-gradient(58% 42% at 10% 4%, var(--aurora-1) 0%, transparent 60%),
    radial-gradient(52% 42% at 92% 8%, var(--aurora-2) 0%, transparent 62%),
    radial-gradient(70% 60% at 50% 112%, var(--aurora-3) 0%, transparent 66%);

  background-repeat: no-repeat;
  background-attachment: fixed;

  overflow-x: hidden;

  min-height: 100vh;

  display: flex;
  flex-direction: column;

  position: relative;
}


/* ==================================================================
   GLOBAL TECHNOLOGY VECTOR BACKGROUND
   ================================================================== */

.page-tech-vectors {
  position: fixed;
  inset: 0;

  width: 100vw;
  height: 100vh;

  z-index: 2;

  pointer-events: none;

  overflow: hidden;

  opacity: 0.9;

  mask-image: radial-gradient(
    120% 100% at 50% 0%,
    #000 0%,
    rgba(0, 0, 0, 0.55) 55%,
    transparent 100%
  );
  -webkit-mask-image: radial-gradient(
    120% 100% at 50% 0%,
    #000 0%,
    rgba(0, 0, 0, 0.55) 55%,
    transparent 100%
  );
}

.tech-vector-grid {
  position: absolute;

  inset: 0;

  width: 100%;
  height: 100%;

  display: block;

  overflow: visible;

  animation: gridDrift 12s linear infinite;
}

.page-tech-vectors svg,
.page-tech-vectors svg * {
  transform-box: fill-box;
}


/* ==================================================================
   VECTOR GLOWS
   ================================================================== */

.tech-vector-glow {
  transform-box: fill-box;
  transform-origin: center;

  animation: techGlowFloat 6s ease-in-out infinite;

  will-change: transform;
}

.tech-vector-glow-2 {
  animation-delay: -3s;
}

@keyframes techGlowFloat {

  0% {
    transform: translateY(0) scale(1);
  }

  50% {
    transform: translateY(-35px) scale(1.15);
  }

  100% {
    transform: translateY(0) scale(1);
  }

}


/* ==================================================================
   CIRCUIT PATHS
   ================================================================== */

.circuit-path {
  stroke-dasharray: 10 15;
  stroke-dashoffset: 0;

  animation: circuitFlow 2.4s linear infinite;

  will-change: stroke-dashoffset;
}

.circuit-path-2 {
  animation-delay: -0.6s;
}

.circuit-path-3 {
  animation-delay: -1.2s;
}

.circuit-path-4 {
  animation-delay: -1.8s;
}

@keyframes circuitFlow {

  from {
    stroke-dashoffset: 0;
  }

  to {
    stroke-dashoffset: -200;
  }

}


/* ==================================================================
   PULSING DATA DOTS
   ================================================================== */

.tech-data-dot {
  fill: var(--accent-primary);

  transform-box: fill-box;
  transform-origin: center;

  animation: dataPulse 1.8s ease-in-out infinite;

  filter: drop-shadow(0 0 10px var(--accent-primary));
}

.dot-2 {
  animation-delay: -0.3s;
}

.dot-3 {
  animation-delay: -0.6s;
}

.dot-4 {
  animation-delay: -0.9s;
}

.dot-5 {
  animation-delay: -1.2s;
}

.dot-6 {
  animation-delay: -1.5s;
}

@keyframes dataPulse {

  0% {
    opacity: 0.25;
    transform: scale(0.5);
  }

  50% {
    opacity: 1;
    transform: scale(2);
  }

  100% {
    opacity: 0.25;
    transform: scale(0.5);
  }

}


/* ==================================================================
   ORBIT
   ================================================================== */

.tech-orbit-system {
  transform-box: fill-box;
  transform-origin: center;
}

.orbit-rotation {
  transform-box: fill-box;
  transform-origin: center;

  animation: orbitRotate 8s linear infinite;

  will-change: transform;
}

@keyframes orbitRotate {

  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }

}


/* ==================================================================
   ORBIT CORE
   ================================================================== */

.orbit-core {
  transform-box: fill-box;
  transform-origin: center;

  animation: corePulse 1.8s ease-in-out infinite;

  will-change: transform, opacity;
}

@keyframes corePulse {

  0% {
    opacity: 0.3;
    transform: scale(0.5);
  }

  50% {
    opacity: 1;
    transform: scale(1.5);
  }

  100% {
    opacity: 0.3;
    transform: scale(0.5);
  }

}


/* ==================================================================
   FLOATING NODES
   ================================================================== */

.tech-floating-nodes circle {
  fill: var(--accent-secondary);

  transform-box: fill-box;
  transform-origin: center;

  animation: floatingNode 3.4s ease-in-out infinite;

  filter: drop-shadow(0 0 8px var(--accent-secondary));
}

.tech-floating-nodes circle:nth-child(2) {
  animation-delay: -0.5s;
}

.tech-floating-nodes circle:nth-child(3) {
  animation-delay: -1s;
}

.tech-floating-nodes circle:nth-child(4) {
  animation-delay: -1.5s;
}

.tech-floating-nodes circle:nth-child(5) {
  animation-delay: -2s;
}

.tech-floating-nodes circle:nth-child(6) {
  animation-delay: -2.5s;
}

@keyframes floatingNode {

  0% {
    opacity: 0.2;
    transform: translateY(0) scale(0.7);
  }

  50% {
    opacity: 1;
    transform: translateY(-25px) scale(1.4);
  }

  100% {
    opacity: 0.2;
    transform: translateY(0) scale(0.7);
  }

}


/* ==================================================================
   GRID MOVEMENT
   ================================================================== */

@keyframes gridDrift {

  0% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(-15px, -10px);
  }

  100% {
    transform: translate(0, 0);
  }

}


/* ==================================================================
   KEEP CONTENT ABOVE VECTORS
   ================================================================== */

.site-header {
  position: relative;
  z-index: 1000;
}

.site-main {
  position: relative;
  z-index: 1;
}

.site-footer {
  position: relative;
  z-index: 1;
}


/* ==================================================================
   TYPOGRAPHY
   ================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

h1 {
  font-size: var(--text-5xl);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  color: var(--link-color);
  text-decoration: none;

  transition: color var(--transition-fast);
}

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

strong,
b {
  color: var(--text-primary);
  font-weight: 600;
}

small {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

::selection {
  background: var(--accent-primary);
  color: #fff;
}


/* ==================================================================
   LAYOUT — CONTAINERS & SECTIONS
   ================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);

  margin-inline: auto;

  padding-inline: clamp(1rem, 3vw, 2rem);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  position: relative;
  padding-block: clamp(3.5rem, 7vw, 7rem);
}

.section-tight {
  position: relative;
  padding-block: clamp(2rem, 4vw, 4rem);
}

/* Shared section heading block (used by many pages). */
.section-header {
  margin-bottom: var(--space-10);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  max-width: 720px;
  margin-inline: auto;
}

.section-header.text-center,
.section-header.text-center h2 {
  text-align: center;
}

/* Eyebrow / kicker label used across pages. */
.eyebrow,
.service-category-label,
.about-section-label,
.package-category,
.product-category,
.service-category {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;

  color: var(--accent-primary);

  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}


/* ==================================================================
   GRID UTILITIES
   ================================================================== */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 1024px) {

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 768px) {

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

}


/* ==================================================================
   BUTTONS
   ================================================================== */

.btn {
  --btn-pad-y: 0.75rem;
  --btn-pad-x: 1.35rem;

  position: relative;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  gap: 0.55rem;

  padding: var(--btn-pad-y) var(--btn-pad-x);

  border-radius: var(--radius-full);

  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;

  text-align: center;
  white-space: nowrap;
  text-decoration: none;

  cursor: pointer;
  user-select: none;

  border: 1px solid var(--btn-border);

  background: var(--btn-bg);
  color: var(--btn-text);

  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);

  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn:hover {
  background: var(--btn-bg-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

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

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}


/* Primary — gradient fill + glow. */
.btn-primary {
  border-color: transparent;

  background-image: var(--accent-gradient);
  background-size: 160% 160%;
  background-position: 0% 50%;

  color: var(--btn-primary-text);

  box-shadow:
    var(--shadow-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);

  transition:
    transform var(--transition-fast),
    background-position var(--transition-slow),
    box-shadow var(--transition-fast);
}

.btn-primary:hover {
  background-position: 100% 50%;

  box-shadow:
    0 24px 56px -12px var(--accent-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}


/* Ghost — frosted glass outline. */
.btn-ghost {
  background: var(--glass-bg-soft);
  border-color: var(--btn-border);
  color: var(--text-primary);
}

.btn-ghost:hover {
  color: var(--accent-primary);
  border-color: color-mix(in oklab, var(--accent-primary), transparent 45%);
  background: var(--glass-bg);
}


/* Large size. */
.btn-lg {
  --btn-pad-y: 0.95rem;
  --btn-pad-x: 1.75rem;

  font-size: var(--text-md);
  border-radius: var(--radius-full);
}


/* ==================================================================
   CARDS — frosted glass base with a gradient hover ring
   ================================================================== */

.card {
  position: relative;

  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);

  padding: var(--space-6);

  box-shadow: var(--card-shadow);

  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);

  overflow: hidden;

  transition:
    transform var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* Gradient hairline ring that reveals on hover. */
.card::before {
  content: '';

  position: absolute;
  inset: 0;

  border-radius: inherit;

  padding: 1px;

  background: var(--accent-gradient);

  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
          mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;

  opacity: 0;

  pointer-events: none;

  transition: opacity var(--transition-base);
}

.card:hover {
  background: var(--card-bg-hover);
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

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


/* ==================================================================
   IMAGES & MEDIA
   ================================================================== */

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

img {
  border-radius: var(--radius-md);
}


/* ==================================================================
   FORMS
   ================================================================== */

label {
  display: block;

  font-size: var(--text-sm);
  font-weight: 600;

  margin-bottom: 0.4rem;

  color: var(--text-secondary);
}

input[type='text'],
input[type='email'],
input[type='tel'],
input[type='url'],
input[type='password'],
textarea,
select {
  width: 100%;

  padding: 0.75rem 1rem;

  border-radius: var(--radius-md);

  border: 1px solid var(--input-border);

  background: var(--input-bg);
  color: var(--input-text);

  font-family: inherit;
  font-size: var(--text-sm);

  outline: none;

  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

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

input:focus,
textarea:focus,
select:focus {
  border-color: var(--input-focus-border);
  box-shadow: 0 0 0 3px var(--ring-accent);
}

textarea {
  resize: vertical;
  min-height: 120px;
}


/* ==================================================================
   TEXT & SPACING UTILITIES
   ================================================================== */

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

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

.text-secondary {
  color: var(--text-secondary);
}

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

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }

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

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


/* ==================================================================
   ACCESSIBILITY
   ================================================================== */

:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only,
.visually-hidden {
  position: absolute;

  width: 1px;
  height: 1px;

  padding: 0;
  margin: -1px;

  overflow: hidden;

  clip: rect(0, 0, 0, 0);

  white-space: nowrap;

  border: 0;
}


/* ==================================================================
   THEME TRANSITION
   ================================================================== */

body,
body * {
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}


/* ==================================================================
   REDUCED MOTION
   ================================================================== */

@media (prefers-reduced-motion: reduce) {

  .tech-vector-glow,
  .circuit-path,
  .tech-data-dot,
  .tech-orbit-system,
  .orbit-rotation,
  .orbit-core,
  .tech-floating-nodes circle,
  .tech-vector-grid {
    animation: none !important;
  }

}