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

:root {
  /* Color Palette - UK corporate, professional */
  --color-background: #f5f6f7; /* light warm grey */
  --color-surface: #ffffff;
  --color-text: #1a2433; /* deep navy text */
  --color-text-muted: #6b7280;

  --color-primary: #007c91; /* corporate teal */
  --color-primary-soft: #e0f3f6;
  --color-primary-strong: #00546a;

  --color-accent: #ffb347; /* subtle amber */
  --color-accent-soft: #fff3df;

  --color-success: #1f9d55;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;

  --color-border-subtle: #e2e5eb;
  --color-border-strong: #c5cad4;
  --color-neutral-50: #f9fafb;
  --color-neutral-100: #f3f4f6;
  --color-neutral-200: #e5e7eb;
  --color-neutral-300: #d1d5db;
  --color-neutral-400: #9ca3af;
  --color-neutral-500: #6b7280;
  --color-neutral-600: #4b5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1f2933;
  --color-neutral-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;
  --font-mono: "SF Mono", "Menlo", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1.0625rem; /* 17px */
  --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-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* 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-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  /* Shadows - subtle, corporate */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.15);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease-out;
}

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

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

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

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

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

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;
  background: none;
  padding: 0;
  cursor: pointer;
}

textarea {
  resize: vertical;
}

/* Remove tap highlight on mobile for a more polished feel */

body {
  -webkit-tap-highlight-color: transparent;
}

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

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
  background-color: var(--color-background);
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

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

h1 {
  font-size: clamp(2.25rem, 3vw, 3rem);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.875rem, 2.4vw, 2.25rem);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(1.5rem, 2vw, 1.875rem);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

h5 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

h6 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

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

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

strong {
  font-weight: 600;
}

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

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

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

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

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

hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-6) 0;
}

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

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 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;
}

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

.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 1120px; /* suits UK service corporate layouts */
}

@media (min-width: 1200px) {
  .container-wide {
    max-width: 1320px;
  }
}

/* Flex helpers */

.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 {
  flex-direction: column;
}

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

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

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.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);
}

/* Grid helpers */

.grid {
  display: grid;
}

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

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Simple spacing utilities for rapid layout tweaks */

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

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

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

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

/* =====================================================================
   Form Elements
   ===================================================================== */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: 1.4;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-neutral-400);
}

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

input:disabled,
select:disabled,
textarea:disabled {
  background-color: var(--color-neutral-100);
  cursor: not-allowed;
  color: var(--color-neutral-500);
}

label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-weight: 500;
  color: var(--color-text);
}

.field-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.field-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* =====================================================================
   Buttons
   ===================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.625rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-strong);
  border-color: var(--color-primary-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

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

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

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

.btn-accent {
  background-color: var(--color-accent);
  color: #111827;
  border-color: var(--color-accent);
}

.btn[disabled],
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
}

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

/* =====================================================================
   Card Component
   ===================================================================== */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.04);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
}

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

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

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card-body {
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.card-meta {
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Variant for service-highlight cards */

.card-emphasis {
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-md);
}

/* =====================================================================
   Status & Helper Badges
   ===================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-success {
  background-color: rgba(31, 157, 85, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge-danger {
  background-color: rgba(220, 38, 38, 0.1);
  color: var(--color-danger);
}

/* =====================================================================
   Hero / Imagery Helpers
   ===================================================================== */

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

.hero--calm {
  background: radial-gradient(circle at top left, var(--color-primary-soft), transparent 55%),
              radial-gradient(circle at bottom right, var(--color-accent-soft), transparent 60%),
              var(--color-background);
}

.hero-image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Utility for images of commercial spaces / teams */

.img-rounded {
  border-radius: var(--radius-lg);
}

.img-soft-shadow {
  box-shadow: var(--shadow-md);
}

/* =====================================================================
   Tables (for service matrices, pricing, etc.)
   ===================================================================== */

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.75rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-subtle);
}

th {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tr:nth-child(even) td {
  background-color: var(--color-neutral-50);
}

/* =====================================================================
   Alerts (for notices, service updates)
   ===================================================================== */

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  font-size: var(--font-size-sm);
}

.alert-info {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.alert-success {
  background-color: rgba(31, 157, 85, 0.08);
  border-color: var(--color-success);
  color: var(--color-text);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.08);
  border-color: var(--color-warning);
  color: var(--color-text);
}

.alert-danger {
  background-color: rgba(220, 38, 38, 0.08);
  border-color: var(--color-danger);
  color: var(--color-text);
}

/* =====================================================================
   Footer Helpers
   ===================================================================== */

.footer {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  background-color: #0b1220; /* deep navy for contrast */
  color: #e5e7eb;
}

.footer a {
  color: #e5e7eb;
}

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

.footer-meta {
  font-size: var(--font-size-sm);
  color: #9ca3af;
}