/* ==========================================================
   WebMason Marketing Layout
   Shared structural styles for header, navigation, main, footer
   ========================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.is-open {
    overflow: hidden;
}

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

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

a {
    color: inherit;
    text-decoration: none;
    transition:
        color var(--transition-speed) var(--transition-easing),
        background-color var(--transition-speed) var(--transition-easing),
        border-color var(--transition-speed) var(--transition-easing),
        opacity var(--transition-speed) var(--transition-easing),
        transform var(--transition-speed) var(--transition-easing);
}

main {
    min-height: 70vh;
}

.main-inner,
.header-inner,
.site-footer-inner {
    width: min(calc(100% - 48px), var(--content-width));
    margin-inline: auto;
}

/* ==========================================================
   Header
   ========================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-header-background);
    border-bottom: 1px solid var(--color-header-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-inner {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-logo {
    width: auto;
    height: var(--brand-logo-height);
    flex: 0 0 auto;
}

.brand-name {
    color: var(--color-header-text);
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

/* ==========================================================
   Desktop Navigation
   ========================================================== */

.desktop-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(18px, 2.2vw, 34px);
}

.desktop-nav a {
    position: relative;
    padding-block: 8px;
    color: var(--color-header-text);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 1px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-speed) var(--transition-easing);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible,
.desktop-nav a.active {
    color: var(--color-accent);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after,
.desktop-nav a.active::after {
    width: 100%;
}

/* ==========================================================
   Mobile Menu Button
   ========================================================== */

.menu-toggle {
    display: none;
    position: relative;
    z-index: 110;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--color-header-text);
    transition:
        transform var(--transition-speed) var(--transition-easing),
        opacity var(--transition-speed) var(--transition-easing);
}

.menu-toggle span {
    position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
}

.menu-toggle span::before {
    top: -8px;
}

.menu-toggle span::after {
    top: 8px;
}

body.is-open .menu-toggle span {
    background: transparent;
}

body.is-open .menu-toggle span::before {
    top: 0;
    transform: rotate(45deg);
}

body.is-open .menu-toggle span::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ==========================================================
   Mobile Navigation
   ========================================================== */

.mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(0, 0, 0, 0.52);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 95;
    width: min(320px, 88vw);
    height: 100dvh;
    padding: calc(var(--header-height) + 32px) 30px 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--color-mobile-nav-background);
    box-shadow: -18px 0 50px rgba(0, 0, 0, 0.22);
    transform: translateX(100%);
    overflow-y: auto;
}

.mobile-nav a {
    display: block;
    padding: 13px 0;
    color: var(--color-header-text);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.05rem;
    font-weight: 500;
}

.mobile-nav a:hover,
.mobile-nav a:focus-visible,
.mobile-nav a.active {
    color: var(--color-accent);
}

.mobile-overlay,
.mobile-nav {
    transition:
        opacity var(--transition-speed) var(--transition-easing),
        visibility var(--transition-speed) var(--transition-easing),
        transform var(--transition-speed) var(--transition-easing);
}

body.is-open .mobile-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

body.is-open .mobile-nav {
    transform: translateX(0);
}

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

.site-footer {
    margin-top: var(--section-spacing);
    background: var(--color-footer-background);
    color: var(--color-footer-text);
}

.site-footer-inner {
    min-height: 120px;
    padding-block: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    font-size: 0.9rem;
}

.site-footer a {
    color: var(--color-footer-text);
}

.site-footer a:hover,
.site-footer a:focus-visible {
    color: var(--color-accent);
}

/* ==========================================================
   Accessibility
   ========================================================== */

:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--color-accent) 75%, white);
    outline-offset: 3px;
}

/* ==========================================================
   Responsive
   ========================================================== */

@media (max-width: 1080px) {
    .desktop-nav {
        gap: 18px;
    }

    .desktop-nav a {
        font-size: 0.88rem;
    }
}

@media (max-width: 920px) {
    .desktop-nav {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .site-footer-inner {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .main-inner,
    .header-inner,
    .site-footer-inner {
        width: min(calc(100% - 32px), var(--content-width));
    }

    .brand-name {
        font-size: 1.1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.d-none {
    display: none;
}