/*
Theme Name: Decima
Theme URI: https://decima.co.uk
Author: Alexis Monks
Author URI: https://decima.co.uk
Description: Custom theme for the Decima website (AI-native marketing agency), hand-built and version-controlled.
Version: 0.2.0
Requires at least: 6.0
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: decima
*/

/* ---------------------------------------------------------------
   Design tokens live in assets/css/tokens.css (enqueued first).
   This file holds reset, base elements, layout, and components,
   all referencing the tokens — never hard-coded brand values.
   --------------------------------------------------------------- */

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

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

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: var(--text-base);
	line-height: var(--leading-normal);
	color: var(--color-text);
	background: var(--color-bg);
	-webkit-font-smoothing: antialiased;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
	font-family: var(--font-heading);
	color: var(--color-heading);
	line-height: var(--leading-tight);
	margin: 0 0 var(--space-md);
	font-weight: var(--weight-bold);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
	margin: 0 0 var(--space-md);
}

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

a:hover {
	text-decoration: underline;
}

:focus-visible {
	outline: 3px solid var(--color-accent);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

/* --- Layout helpers --- */
.container {
	width: 100%;
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--container-pad);
}

.section {
	padding-block: var(--space-4xl);
}

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--color-primary);
	color: var(--color-primary-contrast);
	padding: var(--space-sm) var(--space-md);
	z-index: 1000;
}

.skip-link:focus {
	left: var(--space-sm);
	top: var(--space-sm);
}

/* --- Buttons --- */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-xs);
	padding: var(--space-sm) var(--space-lg);
	border-radius: var(--radius);
	font-weight: var(--weight-semibold);
	font-size: var(--text-base);
	line-height: 1;
	border: 2px solid transparent;
	cursor: pointer;
	transition: background var(--transition), color var(--transition), border-color var(--transition);
	text-decoration: none;
}

.btn:hover {
	text-decoration: none;
}

.btn-primary {
	background: var(--color-primary);
	color: var(--color-primary-contrast);
}

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

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

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

.btn-on-dark {
	background: transparent;
	color: var(--color-dark-text);
	border-color: rgba(255, 255, 255, 0.25);
}

.btn-on-dark:hover {
	border-color: var(--color-dark-text);
	color: var(--color-dark-text);
}

/* =============================================================
   SITE HEADER
   ============================================================= */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: color-mix(in srgb, var(--color-bg) 92%, transparent);
	backdrop-filter: saturate(1.2) blur(8px);
	border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-lg);
	min-height: var(--header-height);
}

.site-branding {
	display: flex;
	align-items: center;
}

.site-title {
	font-family: var(--font-heading);
	font-size: var(--text-xl);
	font-weight: var(--weight-bold);
	color: var(--color-heading);
	text-decoration: none;
	letter-spacing: -0.01em;
}

.custom-logo-link { display: inline-flex; }
.custom-logo { max-height: 40px; width: auto; }

/* --- Primary navigation --- */
.primary-nav ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	align-items: center;
	gap: var(--space-lg);
}

.primary-nav a {
	color: var(--color-text);
	font-weight: var(--weight-medium);
	text-decoration: none;
	padding-block: var(--space-xs);
}

.primary-nav a:hover,
.primary-nav .current-menu-item > a {
	color: var(--color-primary);
}

.header-actions {
	display: flex;
	align-items: center;
	gap: var(--space-sm);
}

/* --- Mobile nav toggle --- */
.nav-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	padding: 0;
	background: transparent;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	cursor: pointer;
}

.nav-toggle span {
	display: block;
	width: 20px;
	height: 2px;
	margin-inline: auto;
	background: var(--color-text);
	transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 900px) {
	.nav-toggle { display: flex; }

	.primary-nav {
		position: fixed;
		inset: var(--header-height) 0 auto 0;
		background: var(--color-bg);
		border-bottom: 1px solid var(--color-border);
		box-shadow: var(--shadow-lg);
		transform: translateY(-120%);
		transition: transform var(--transition);
		padding: var(--space-lg) var(--container-pad);
	}

	.primary-nav[data-open="true"] {
		transform: translateY(0);
	}

	.primary-nav ul {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--space-md);
	}

	.header-actions .btn-ghost { display: none; }
}

/* =============================================================
   HERO (front page — foundation styling)
   ============================================================= */
.hero {
	background: var(--color-surface);
	padding-block: var(--space-4xl);
	text-align: center;
}

.hero__tagline {
	color: var(--color-text-muted);
	font-size: var(--text-lg);
	max-width: 42rem;
	margin-inline: auto;
	margin-bottom: var(--space-xl);
}

.hero__actions {
	display: flex;
	gap: var(--space-md);
	justify-content: center;
	flex-wrap: wrap;
}

/* =============================================================
   SITE FOOTER
   ============================================================= */
.pre-footer-cta {
	background: var(--color-dark);
	color: var(--color-dark-text);
	text-align: center;
	padding-block: var(--space-3xl);
}

.pre-footer-cta h2 { color: var(--color-dark-text); }

.pre-footer-cta p {
	color: var(--color-dark-muted);
	max-width: 40rem;
	margin-inline: auto;
	margin-bottom: var(--space-xl);
}

.site-footer {
	background: var(--color-dark-surface);
	color: var(--color-dark-muted);
	padding-block: var(--space-3xl) var(--space-xl);
}

.site-footer__grid {
	display: grid;
	grid-template-columns: 1.5fr 1fr 1fr;
	gap: var(--space-2xl);
	margin-bottom: var(--space-2xl);
}

@media (max-width: 700px) {
	.site-footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
}

.site-footer h4 {
	color: var(--color-dark-text);
	font-size: var(--text-base);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: var(--space-md);
}

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

.site-footer ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: var(--space-sm);
}

.footer-brand__name {
	font-family: var(--font-heading);
	font-size: var(--text-xl);
	font-weight: var(--weight-bold);
	color: var(--color-dark-text);
	margin-bottom: var(--space-sm);
}

.site-footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	padding-top: var(--space-lg);
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: var(--space-sm);
	font-size: var(--text-sm);
}

.site-footer__bottom ul {
	flex-direction: row;
	gap: var(--space-lg);
}