/* ========================================================================
   Variables
   ======================================================================== */
:root {
  /* Colors */
  --color-background: #0f1216; /* deep steel/navy blend */
  --color-surface: #171b21;
  --color-surface-alt: #1f252d;
  --color-text: #f5f7fa;
  --color-text-muted: #a5afbf;

  --color-primary: #1656b8; /* industrial navy-blue */
  --color-primary-soft: rgba(22, 86, 184, 0.12);
  --color-primary-strong: #0f3c80;

  --color-accent: #ff7a2f; /* warm industrial orange */
  --color-accent-soft: rgba(255, 122, 47, 0.16);

  --color-success: #27ae60;
  --color-warning: #f2c94c;
  --color-danger: #e53935;

  --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, "Noto Sans", sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --font-heading: "Inter", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

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

  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-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-7: 28px;
  --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 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.18);
  --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.35);
  --shadow-soft-elevated: 0 18px 45px rgba(0, 0, 0, 0.45);

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

  /* Layout */
  --container-max-width: 1200px;
  --container-padding-x: 20px;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0s;
    --transition-base: 0s;
    --transition-slow: 0s;
  }

  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

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

body {
  margin: 0;
}

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;
}

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

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

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

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

textarea {
  resize: vertical;
}

/* Improve text rendering */
body,
input,
button,
textarea,
select {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================================================
   Base Styles
   ======================================================================== */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-background);
}

main {
  display: block;
}

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

h1 {
  font-size: clamp(2.2rem, 3vw, 2.8rem);
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.2rem);
}

h3 {
  font-size: clamp(1.4rem, 2vw, 1.7rem);
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.1rem;
}

h6 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  }

p + p {
  margin-top: var(--space-3);
}

strong {
  font-weight: 600;
  color: var(--gray-50);
}

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

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

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

hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin: var(--space-6) 0;
}

/* ========================================================================
   Accessibility & Focus
   ======================================================================== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Screen-reader only */
.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;
}

/* ========================================================================
   Utilities
   ======================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

.section {
  padding-block: var(--space-12);
}

.section--tight {
  padding-block: var(--space-8);
}

.section--contrast {
  background-color: 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-2 {
  gap: var(--space-2);
}

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

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

/* Grid utilities */
.grid {
  display: grid;
}

.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: minmax(0, 1fr);
  }
}

/* Alignment & text */
.text-center {
  text-align: center;
}

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

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

/* Spacing utilities (margin / padding) */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.py-6 {
  padding-block: var(--space-6);
}

.py-8 {
  padding-block: var(--space-8);
}

.p-4 {
  padding: var(--space-4);
}

.p-6 {
  padding: var(--space-6);
}

/* Width helpers */
.w-full {
  width: 100%;
}


/* ========================================================================
   Components
   ======================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: var(--text-sm);
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

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

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-strong), var(--color-primary));
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn--secondary {
  background-color: var(--color-surface-alt);
  border-color: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
}

.btn--secondary:hover {
  background-color: #262e38;
  border-color: rgba(255, 255, 255, 0.12);
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), #ff974f);
  color: #050608!important;
  box-shadow: 0 10px 30px rgba(255, 122, 47, 0.35);
}

.btn--accent:hover {
  background: linear-gradient(135deg, #ff974f, var(--color-accent));
}

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

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

/* Inputs & form controls */
.input,
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: var(--color-surface-alt);
  color: var(--color-text);
  font-size: var(--text-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(--color-text-muted);
}

.input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent-soft), var(--shadow-sm);
}

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

label {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--gray-100);
}

.form-helper {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

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

/* Cards (e.g., service tiles, testimonials) */
.card {
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.04) 0, rgba(23, 27, 33, 1) 42%, rgba(7, 9, 13, 1) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft-elevated);
  color: var(--color-text);
}

.card--subtle {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

/* Hero / highlight band helpers */
.hero {
  padding-block: var(--space-16);
}

.hero__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

/* Badge for status (e.g. availability, SLA) */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.badge--success {
  color: #b8f4ce;
  border-color: rgba(39, 174, 96, 0.5);
  background: linear-gradient(135deg, rgba(39, 174, 96, 0.18), rgba(8, 23, 15, 0.95));
}

.badge--warning {
  color: #ffefb3;
  border-color: rgba(242, 201, 76, 0.5);
  background: linear-gradient(135deg, rgba(242, 201, 76, 0.2), rgba(23, 21, 7, 0.95));
}

/* Testimonial text styling */
.testimonial-quote {
  font-style: italic;
  color: var(--gray-100);
}

.testimonial-meta {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* CTA band */
.cta-band {
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: linear-gradient(135deg, rgba(22, 86, 184, 0.9), rgba(12, 22, 40, 0.98));
  color: #ffffff;
  box-shadow: 0 18px 55px rgba(8, 17, 34, 0.9);
}

/* Tables (for pricing / capacity specs) */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table thead {
  background-color: #141923;
}

.table th,
.table td {
  padding: 0.75rem 1rem;
  text-align: left;
}

.table th {
  font-weight: 500;
  color: var(--gray-100);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.table tbody tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.04);
}