/* =============================================
   Royal Pattern Style — Global Stylesheet
   Mobile-first. Semantic. Production-ready.
   ============================================= */

/* ── Custom Properties ─────────────────────── */
:root {
    /* Brand Colours */
    --colour-primary:    #1a1a1a;
    --colour-secondary:  #c9a96e;   /* Gold accent — royalty signal */
    --colour-accent:     #2d2d2d;
    --colour-surface:    #f8f6f3;   /* Warm off-white — not clinical */
    --colour-dark:       #111111;
    --colour-text:       #1a1a1a;
    --colour-text-muted: #595959;
    --colour-border:     #e0dcd6;
    --colour-white:      #ffffff;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Scale */
    --fs-xs:  0.75rem;
    --fs-sm:  0.875rem;
    --fs-md:  1rem;
    --fs-lg:  1.125rem;
    --fs-xl:  1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: 2.5rem;
    --fs-5xl: 3.5rem;
    --fs-6xl: 4.5rem;

    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 760px;
    --border-radius: 2px;  /* Minimal radius — brand is sharp, not round */

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--fs-md);
    line-height: 1.7;
    color: var(--colour-text);
    background-color: var(--colour-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul, ol { list-style: none; }

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ── Accessibility ──────────────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background: var(--colour-primary);
    color: var(--colour-white);
    font-size: var(--fs-sm);
    z-index: 9999;
    border-radius: var(--border-radius);
}
.skip-link:focus { top: var(--space-4); }

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

/* ── Layout Utilities ───────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

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

.section {
    padding-block: var(--space-20);
}

.section--dark {
    background-color: var(--colour-dark);
    color: var(--colour-white);
}

.section--accent {
    background-color: var(--colour-surface);
}

/* section--accent has light background — gold #c9a96e fails contrast there */
.section--accent .section-eyebrow {
    color: #a07c3e;
}

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

/* ── Typography ─────────────────────────────── */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(var(--fs-3xl), 5vw, var(--fs-6xl)); }
h2 { font-size: clamp(var(--fs-2xl), 3.5vw, var(--fs-4xl)); }
h3 { font-size: clamp(var(--fs-xl),  2.5vw, var(--fs-2xl)); }

p { max-width: 65ch; }

.section-eyebrow {
    display: block;
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--colour-secondary);
    margin-bottom: var(--space-3);
}

.section-header {
    margin-bottom: var(--space-12);
}

.section-header .section-title {
    margin-top: var(--space-2);
}

.section-header--light .section-title,
.section-header--light .section-eyebrow {
    color: var(--colour-white);
}

/* ── Navigation ─────────────────────────────── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding-block: var(--space-4);
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
    background-color: rgba(255,255,255,0.97);
    box-shadow: 0 1px 0 var(--colour-border);
    backdrop-filter: blur(8px);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--colour-primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--fs-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--colour-text);
    position: relative;
    padding-bottom: var(--space-1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--colour-secondary);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.nav-cta {
    font-size: var(--fs-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: var(--space-2) var(--space-6);
    border: 1px solid var(--colour-primary);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-cta:hover {
    background-color: var(--colour-primary);
    color: var(--colour-white);
}

.nav-toggle { display: none; }

/* ── Hero ───────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--colour-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 50%, #0d0d0d 100%);
    opacity: 0.95;
}

.hero-inner {
    position: relative;
    z-index: 1;
    padding-top: var(--space-20);
}

.hero-content {
    max-width: 800px;
}

.hero-eyebrow {
    font-size: var(--fs-xs);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--colour-secondary);
    display: block;
    margin-bottom: var(--space-6);
}

.hero-headline {
    color: var(--colour-white);
    font-size: clamp(var(--fs-4xl), 6vw, 5.5rem);
    line-height: 1.05;
    margin-bottom: var(--space-6);
}

.hero-headline em {
    font-style: italic;
    color: var(--colour-secondary);
}

.hero-subline {
    color: rgba(255,255,255,0.85);
    font-size: clamp(var(--fs-md), 2vw, var(--fs-lg));
    line-height: 1.7;
    margin-bottom: var(--space-10);
    max-width: 50ch;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255,255,255,0.4);
    font-size: var(--fs-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50%       { opacity: 1;   transform: scaleY(1.2); }
}

/* ── Brand Strip ────────────────────────────── */
.brand-strip {
    background-color: var(--colour-primary);
    padding-block: var(--space-6);
}

.brand-strip__text {
    font-family: var(--font-heading);
    font-size: clamp(var(--fs-lg), 2.5vw, var(--fs-2xl));
    color: rgba(255,255,255,0.85);
    text-align: center;
    max-width: none;
}

.brand-strip__text strong {
    color: var(--colour-secondary);
    font-weight: 600;
}

/* ── Buttons ─────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--fs-sm);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--colour-secondary);
    color: var(--colour-dark);
    border: 1px solid var(--colour-secondary);
}
.btn--primary:hover {
    background-color: #b8924a;
    border-color: #b8924a;
}

.btn--ghost {
    background-color: transparent;
    color: var(--colour-white);
    border: 1px solid rgba(255,255,255,0.4);
}
.btn--ghost:hover {
    border-color: var(--colour-white);
    background-color: rgba(255,255,255,0.05);
}

.btn--outline {
    background-color: transparent;
    color: var(--colour-primary);
    border: 1px solid var(--colour-primary);
}
.btn--outline:hover {
    background-color: var(--colour-primary);
    color: var(--colour-white);
}

/* btn--outline on dark footer background needs white text */
.site-footer .btn--outline {
    color: var(--colour-white);
    border-color: rgba(255,255,255,0.6);
}
.site-footer .btn--outline:hover {
    background-color: var(--colour-white);
    color: var(--colour-dark);
}

.btn--outline-light {
    background-color: transparent;
    color: var(--colour-white);
    border: 1px solid rgba(255,255,255,0.5);
}
.btn--outline-light:hover {
    background-color: var(--colour-white);
    color: var(--colour-dark);
}

.btn--sm   { padding: var(--space-2) var(--space-6); font-size: var(--fs-xs); }
.btn--full { width: 100%; }

/* ── Footer ─────────────────────────────────── */
.site-footer {
    background-color: var(--colour-dark);
    color: rgba(255,255,255,0.75);
    padding-top: var(--space-20);
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--space-12);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
    padding-bottom: var(--space-16);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--colour-white);
    display: block;
    margin-bottom: var(--space-3);
}

.footer-tagline {
    color: var(--colour-secondary);
    font-size: var(--fs-sm);
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    max-width: none;
}

.footer-bio {
    font-size: var(--fs-sm);
    line-height: 1.7;
}

.footer-heading {
    font-family: var(--font-body);
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--colour-secondary);
    margin-bottom: var(--space-4);
}

.footer-nav ul,
.footer-connect ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-nav a,
.footer-connect a {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.75);
    transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-connect a:hover {
    color: var(--colour-secondary);
}

.footer-capture p {
    font-size: var(--fs-sm);
    margin-bottom: var(--space-4);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
    padding-block: var(--space-6);
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.5);
}

.footer-legal a {
    color: rgba(255,255,255,0.6);
}

.footer-legal a:hover {
    color: rgba(255,255,255,0.85);
}

/* ── Intersection Observer animations ───────── */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.in-view {
    opacity: 1;
    transform: translateY(0);
}

.field-error {
    border-color: #dc2626 !important;
    box-shadow: 0 0 0 3px rgba(220,38,38,0.1) !important;
}