/* ==========================================================================
   james-webster.co.uk — Styles
   Aesthetic: Warm editorial, personal, literate
   Sister site to croftsware.com — shared font family, distinct palette
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Palette — Warm, natural tones */
    --color-ink: #2A2318;
    --color-ink-light: #4A3F32;
    --color-ink-muted: #5C5347;
    --color-stone: #9C9488;
    --color-parchment: #EDE7DA;
    --color-cream: #F5F0E6;
    --color-white: #F5F0E6;
    --color-border: #D4CBBA;
    --color-border-light: #E2DCD0;
    --color-rule: #C8BFAF;

    /* Accent — Muted sage */
    --color-accent: #6B7B5E;
    --color-accent-hover: #566A49;

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body: 'Crimson Pro', Georgia, 'Times New Roman', serif;
    --font-serif: 'Crimson Pro', Georgia, 'Times New Roman', serif;

    /* Sizing */
    --container-max: 1200px;
    --container-padding: clamp(1.5rem, 5vw, 4rem);

    /* Spacing scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 10rem;

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

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-padding-top: 80px;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-ink);
    background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

p { margin: 0 0 1.25rem; }
p:last-child { margin-bottom: 0; }

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

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

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
}

.header-scrolled {
    background: rgba(245, 240, 230, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--space-sm) 0;
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--color-ink);
    letter-spacing: -0.01em;
}

.logo:hover { opacity: 0.7; }

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-stone);
    letter-spacing: 0.01em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-ink);
    transition: width var(--transition-base);
}

.nav-link:hover { color: var(--color-ink); }
.nav-link:hover::after { width: 100%; }

.nav-link-active { color: var(--color-ink); }
.nav-link-active::after { width: 100%; }

/* Header overlay variant (absolute over hero images) */
.header.header--overlay {
    position: absolute;
    background: transparent;
    z-index: 100;
    transition: none;
}

.header.header--overlay.header-scrolled {
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    padding: var(--space-md) 0;
}

/* Mobile menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 24px;
    height: 20px;
    justify-content: center;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

.menu-toggle span {
    display: block;
    height: 1.5px;
    background: var(--color-ink);
    transition: all var(--transition-fast);
}

.menu-toggle.menu-open span:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}
.menu-toggle.menu-open span:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

.nav-backdrop { display: none; }

@media (max-width: 768px) {
    .menu-toggle { display: flex; }

    .nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
        padding: 6rem var(--space-lg) var(--space-lg);
        background: var(--color-cream);
        border-left: 1px solid var(--color-border-light);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 1001;
    }

    .nav-open { transform: translateX(0); }
    .nav-link { font-size: 1.125rem; }
    body.menu-is-open { overflow: hidden; }

    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(42, 35, 24, 0.4);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
        z-index: 999;
    }

    .nav-backdrop.backdrop-visible {
        opacity: 1;
        visibility: visible;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: var(--space-lg) 0;
    background: var(--color-cream);
    border-top: 1px solid var(--color-border-light);
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-ink);
}

.footer-right a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-stone);
}

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

@media (max-width: 640px) {
    .footer-inner {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   Shared nav script
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

::selection {
    background: var(--color-ink);
    color: var(--color-cream);
}

:focus-visible {
    outline: 2px solid var(--color-ink);
    outline-offset: 4px;
}