/* 
======================================================
USER CONFIGURATION REQUIRED
======================================================
Check brand colours, typography settings and breakpoints before launch.
*/

:root {
  /* Colours */
  --colour-navy-900: #0B1F33;
  --colour-navy-800: #12324F;
  --colour-blue-700: #1F5D8C;
  --colour-blue-100: #EAF3FA;
  --colour-grey-900: #20242A;
  --colour-grey-700: #4F5965;
  --colour-grey-300: #D8DEE6;
  --colour-grey-100: #F5F7FA;
  --colour-white: #FFFFFF;
  --colour-gold-500: #C9A227;
  --colour-gold-100: #F7EBC2;
  --colour-success: #166534;
  --colour-warning: #92400E;
  --colour-error: #B42318;
  --colour-focus: #FFD84D;
 
  /* Semantic colours */
  --colour-text: var(--colour-grey-900);
  --colour-text-muted: var(--colour-grey-700);
  --colour-background: var(--colour-white);
  --colour-surface: var(--colour-grey-100);
  --colour-link: var(--colour-blue-700);
  --colour-border: var(--colour-grey-300);
  --colour-cta-primary-bg: var(--colour-navy-900);
  --colour-cta-primary-text: var(--colour-white);
  --colour-cta-secondary-bg: var(--colour-gold-500);
  --colour-cta-secondary-text: var(--colour-navy-900);
 
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  
  /* Fluid typography clamp formulas for responsiveness */
  --text-xs: clamp(0.8125rem, 0.8rem + 0.0625vw, 0.875rem);
  --text-sm: clamp(0.9375rem, 0.9125rem + 0.125vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.6rem + 2vw, 3rem);

  --line-tight: 1.2;
  --line-normal: 1.55;
  --line-loose: 1.7;
 
  /* Spacing */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
 
  /* Layout */
  --container-sm: 40rem;
  --container-md: 56rem;
  --container-lg: 72rem;
  --container-xl: 84rem;
  --content-measure: 68ch;
  --grid-gap: var(--space-6);
 
  /* Shape and elevation */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.08);
  --shadow-md: 0 6px 18px rgb(0 0 0 / 0.12);
 
  /* Motion */
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--line-normal);
    color: var(--colour-text);
    background-color: var(--colour-background);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: var(--space-4);
    line-height: var(--line-tight);
    color: var(--colour-navy-900);
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); margin-top: var(--space-6); }
h3 { font-size: var(--text-xl); }
p, ul, ol, dl {
    margin-top: 0;
    margin-bottom: var(--space-4);
    max-width: var(--content-measure);
}
a {
    color: var(--colour-link);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: all var(--duration-fast) var(--ease-standard);
}
a:hover {
    text-decoration-thickness: 2px;
    color: var(--colour-navy-900);
}
:focus-visible {
    outline: 3px solid var(--colour-focus);
    outline-offset: 3px;
}
img, svg {
    max-width: 100%;
    height: auto;
}

/* Layout */
.container {
    width: 100%;
    max-width: var(--container-lg);
    margin: 0 auto;
    padding: 0 var(--space-4);
}
@media (min-width: 768px) {
    .container { padding: 0 var(--space-6); }
}

/* Components */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--colour-navy-900);
    color: var(--colour-white);
    padding: var(--space-2) var(--space-4);
    z-index: 1000;
}
.skip-link:focus {
    top: 0;
}

/* Header & Nav */
.site-header {
    border-bottom: 1px solid var(--colour-border);
    padding: var(--space-4) 0;
    background: var(--colour-white);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-logo a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    font-weight: bold;
    font-size: var(--text-lg);
    color: var(--colour-navy-900);
}
.site-logo svg {
    width: 32px;
    height: 32px;
}
.main-nav {
    display: flex;
    gap: var(--space-4);
}
.main-nav a {
    text-decoration: none;
    color: var(--colour-text);
    font-weight: 500;
}
.main-nav a:hover, .main-nav a[aria-current="page"] {
    color: var(--colour-navy-900);
    text-decoration: underline;
    text-decoration-thickness: 2px;
}
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--colour-border);
    padding: var(--space-2) var(--space-4);
    cursor: pointer;
    font-family: inherit;
    font-size: var(--text-base);
}

@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .main-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--colour-white);
        padding: var(--space-4);
        border-bottom: 1px solid var(--colour-border);
        box-shadow: var(--shadow-md);
        z-index: 100;
    }
    .main-nav.is-open { display: flex; }
}

/* Breadcrumbs */
.breadcrumbs {
    padding: var(--space-4) 0 0;
    font-size: var(--text-sm);
    color: var(--colour-text-muted);
}
.breadcrumbs ol {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}
.breadcrumbs li::after {
    content: "/";
    margin-left: var(--space-2);
}
.breadcrumbs li:last-child::after { content: ""; }
.breadcrumbs a { color: var(--colour-text-muted); }

/* Hero */
.hero {
    padding: clamp(3.5rem, 8vw, 6.5rem) 0;
    background: linear-gradient(135deg, var(--colour-white) 0%, var(--colour-white) 58%, #f5f7fb 100%);
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(17rem, 0.8fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: center;
}
.hero-copy { max-width: 48rem; }
.eyebrow {
    color: var(--colour-blue-700);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--space-3);
}
.hero .lead {
    font-size: var(--text-xl);
    color: var(--colour-navy-800);
}
.hero-visual {
    margin: 0;
    position: relative;
}
.hero-visual::before {
    content: "";
    position: absolute;
    inset: 12% -12% -10% 16%;
    background: var(--colour-gold-500);
    opacity: 0.16;
    border-radius: 50%;
    filter: blur(0.5px);
}
.hero-visual img {
    position: relative;
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 1.4rem 2rem rgba(23, 32, 51, 0.14));
}
@media (max-width: 50rem) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { max-width: 32rem; margin-inline: auto; }
}

/* Sections */
.content-section {
    padding: var(--space-8) 0;
}
.bg-surface {
    background-color: var(--colour-surface);
}

/* Trust Strip */
.trust-strip {
    padding: var(--space-4) 0;
    border-top: 1px solid var(--colour-border);
    border-bottom: 1px solid var(--colour-border);
}
.trust-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    justify-content: center;
    font-size: var(--text-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    min-height: 44px;
    text-align: center;
}
.btn-primary {
    background-color: var(--colour-cta-primary-bg);
    color: var(--colour-cta-primary-text);
}
.btn-primary:hover {
    background-color: var(--colour-navy-800);
    color: var(--colour-white);
    text-decoration: none;
}
.btn-secondary {
    background-color: transparent;
    color: var(--colour-navy-900);
    border-color: var(--colour-navy-900);
}
.btn-secondary:hover {
    background-color: var(--colour-surface);
    text-decoration: none;
}
.cta-group {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Cards */
.grid-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}
@media (min-width: 768px) {
    .grid-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .grid-cards { grid-template-columns: repeat(3, 1fr); }
}
.card {
    background: var(--colour-white);
    border: 1px solid var(--colour-border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

/* Grids */
.grid-2-col {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}
@media (min-width: 768px) {
    .grid-2-col { grid-template-columns: 1fr 1fr; }
}

/* Lists */
.process-list {
    list-style: none;
    padding: 0;
}
.process-list li {
    margin-bottom: var(--space-5);
    padding-left: var(--space-4);
    border-left: 4px solid var(--colour-gold-500);
}

/* Alerts & Boundary Panels */
.boundary-panel {
    border-top: 4px solid var(--colour-navy-900);
    background-color: var(--colour-surface);
}
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
}
.alert-info {
    background-color: var(--colour-blue-100);
    border-left: 4px solid var(--colour-blue-700);
    color: var(--colour-navy-900);
}
.alert-warning {
    background-color: #FFF4D6;
    border-left: 4px solid var(--colour-warning);
    color: var(--colour-text);
}
.alert-error {
    background-color: #FEE2E2;
    border-left: 4px solid var(--colour-error);
    color: var(--colour-error);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-4);
}
label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
}
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--colour-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: var(--text-base);
}
input:focus, select:focus, textarea:focus {
    outline: 3px solid var(--colour-focus);
    outline-offset: 1px;
    border-color: var(--colour-navy-900);
}

/* FAQ Accordion */
.faq-accordion details {
    border-bottom: 1px solid var(--colour-border);
    padding: var(--space-4) 0;
}
.faq-accordion summary {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--colour-navy-900);
    cursor: pointer;
    list-style: none; /* Hide default arrow */
    position: relative;
    padding-right: var(--space-6);
}
.faq-accordion summary::-webkit-details-marker { display: none; }
.faq-accordion summary::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 0;
    font-size: var(--text-xl);
}
.faq-accordion details[open] summary::after { content: "-"; }
.faq-accordion .details-content {
    margin-top: var(--space-4);
}

/* Glossary */
.glossary-list dt {
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--colour-navy-900);
    margin-top: var(--space-5);
}
.glossary-list dd {
    margin-left: 0;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--colour-border);
}

/* Footer */
.site-footer {
    background-color: var(--colour-navy-900);
    color: var(--colour-white);
    padding: var(--space-8) 0 var(--space-4);
}
.site-footer a {
    color: var(--colour-blue-100);
    text-decoration: none;
}
.site-footer a:hover {
    text-decoration: underline;
    color: var(--colour-white);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}
@media (min-width: 768px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .footer-grid { grid-template-columns: repeat(4, 1fr); }
}
.footer-col h3 {
    color: var(--colour-gold-500);
    font-size: var(--text-base);
    margin-bottom: var(--space-4);
}
.footer-col ul {
    list-style: none;
    padding: 0;
}
.footer-col li {
    margin-bottom: var(--space-2);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--colour-grey-300);
}

/* Utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.w-full { width: 100%; }

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

/* Print */
@media print {
    .site-header, .site-footer, .hero, .cta-group, .btn, .skip-link {
        display: none !important;
    }
    body {
        color: #000;
        background: #fff;
        font-size: 12pt;
    }
    a { text-decoration: none; color: #000; }
    h1, h2, h3 { page-break-after: avoid; }
    p, ul, ol { page-break-inside: avoid; }
}