/* ========================================================================
   Variables
   ======================================================================== */

:root {
  /* Colors */
  --color-bg: #0b1020; /* deep navy background for a secure, corporate feel */
  --color-surface: #12182a;
  --color-surface-alt: #161d33;
  --color-text: #f7fafc;
  --color-text-muted: #a0aec0;
  --color-border: #2d3748;

  --color-primary: #1a73e8; /* modern corporate blue */
  --color-primary-soft: rgba(26, 115, 232, 0.1);
  --color-primary-strong: #1050a6;

  --color-success: #22c55e;
  --color-success-soft: rgba(34, 197, 94, 0.1);
  --color-warning: #fbbf24;
  --color-warning-soft: rgba(251, 191, 36, 0.1);
  --color-danger: #ef4444;
  --color-danger-soft: rgba(239, 68, 68, 0.1);

  --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, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Merriweather", Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", 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-md: 1.0625rem;/* 17px - slightly larger base for readability */
  --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 */
  --font-size-5xl: 3rem;    /* 48px */

  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 18px 45px rgba(0, 0, 0, 0.4);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 180ms ease-out;
  --transition-slow: 260ms ease-out;
}

/* ========================================================================
   Reset / Normalize
   ======================================================================== */

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

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

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
  margin: 0;
}

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

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

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

/* Remove default focus outline; we reintroduce an accessible style later */
:focus {
  outline: none;
}

/* ========================================================================
   Base Styles
   ======================================================================== */

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-bg);
  color: var(--color-text);
}

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(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-4xl));
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* Links */

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base),
    opacity var(--transition-base),
    text-decoration-color var(--transition-base);
}

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

a:active {
  opacity: 0.8;
}

/* Lists */

ul,
ol {
  margin-left: var(--space-5);
  margin-bottom: var(--space-4);
}

/* ========================================================================
   Accessibility & Motion
   ======================================================================== */

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

@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;
  }
}

/* Screen-reader-only utility */

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

/* ========================================================================
   Layout Utilities
   ======================================================================== */

.container {
  width: 100%;
  max-width: 1120px; /* suitable for corporate multi-page layout */
  margin-inline: auto;
  padding-inline: var(--space-4);
}

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

.section {
  padding-block: var(--space-10);
}

.section--alt {
  background: radial-gradient(circle at top left, rgba(26, 115, 232, 0.12), transparent 55%),
    var(--color-surface);
}

/* Flex utilities */

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

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

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

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

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

/* Grid utilities */

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Simple spacing utilities for quick layout tweaks */

.mt-0 { margin-top: 0 !important; }
.mt-xs { margin-top: var(--space-2) !important; }
.mt-sm { margin-top: var(--space-3) !important; }
.mt-md { margin-top: var(--space-4) !important; }
.mt-lg { margin-top: var(--space-6) !important; }
.mt-xl { margin-top: var(--space-10) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-xs { margin-bottom: var(--space-2) !important; }
.mb-sm { margin-bottom: var(--space-3) !important; }
.mb-md { margin-bottom: var(--space-4) !important; }
.mb-lg { margin-bottom: var(--space-6) !important; }
.mb-xl { margin-bottom: var(--space-10) !important; }

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

/* ========================================================================
   Components
   ======================================================================== */

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-weight: 500;
  font-size: var(--font-size-sm);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #ffffff !important;
  box-shadow: var(--shadow-md);
}

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

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary-soft);
}

.btn-muted {
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-muted:hover {
  border-color: var(--color-primary);
}

.btn--icon-only {
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

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

/* Form controls */

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition: border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

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

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft), 0 0 0 1px var(--color-primary);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-100);
}

.field-hint {
  font-size: var(--font-size-xs);
  color: var(--gray-400);
  margin-top: var(--space-1);
}

.field-error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

.input--error,
.textarea--error,
.select--error {
  border-color: var(--color-danger);
}

/* Card */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.02);
}

.card--subtle {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.02), transparent);
  border-color: var(--color-border);
}

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

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-1);
}

.card-meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-400);
}

.card-body {
  font-size: var(--font-size-sm);
}

/* Tag / Pill for highlighting reliability, 24/7, etc. */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

.pill--success {
  background-color: var(--color-success-soft);
  color: var(--color-success);
}

/* Hero-style headline text */

.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* Simple badges for status indicators (e.g., Licensed, SIA Approved) */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  background-color: var(--color-surface-alt);
  color: var(--gray-200);
  border: 1px solid var(--color-border);
}

.badge--success {
  border-color: var(--color-success);
  color: var(--color-success);
}

.badge--outline {
  background-color: transparent;
}

/* ========================================================================
   Helpers for Security / Corporate Feel
   ======================================================================== */

/* Section headers used across pages like Services, Process, Case Studies */

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

.section-eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gray-400);
  margin-bottom: var(--space-1);
}

.section-description {
  max-width: 44rem;
  color: var(--color-text-muted);
}

/* Timeline / process steps; used for step-by-step service process */

.process-list {
  position: relative;
  padding-left: 1.75rem;
}

.process-list::before {
  content: "";
  position: absolute;
  top: 0.35rem;
  left: 0.5rem;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  opacity: 0.6;
}

.process-step {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: var(--space-4);
}

.process-step::before {
  content: "";
  position: absolute;
  left: -0.125rem;
  top: 0.2rem;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
}

.process-step-title {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.process-step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Testimonial text style */

.testimonial-quote {
  font-style: italic;
  font-size: var(--font-size-md);
  color: var(--gray-100);
}

.testimonial-meta {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--gray-400);
}

/* Contact panel emphasis */

.contact-panel {
  background: radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 55%),
    var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.contact-panel-heading {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.contact-details {
  font-size: var(--font-size-sm);
  color: var(--gray-200);
}

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

.contact-details a:hover {
  text-decoration: underline;
}

/* Footer basics for a clean corporate footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  background-color: #050814;
  padding-block: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--gray-400);
}

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

.site-footer small {
  font-size: var(--font-size-xs);
}