```css
/*
Theme Name: Computilize Child
Theme URI: https://computilize.com
Description: Custom child theme for Computilize, based on Twenty Twenty-Five.
Author: Computilize
Author URI: https://computilize.com
Template: twentytwentyfive
Version: 1.0.0
Text Domain: computilize-child
*/

/* =========================================================
   Computilize Brand Colors
   ========================================================= */

:root {
	--computilize-navy: #071B72;
	--computilize-power-blue: #075BE8;
	--computilize-electric-blue: #0789F5;
	--computilize-tech-cyan: #08C7ED;
	--computilize-deep-slate: #1E293B;
	--computilize-steel-gray: #64748B;
	--computilize-cloud-gray: #E2E8F0;
	--computilize-ice-white: #F8FAFC;
	--computilize-white: #FFFFFF;

	--computilize-gradient: linear-gradient(
		90deg,
		#071B72 0%,
		#075BE8 35%,
		#0789F5 70%,
		#08C7ED 100%
	);
}

/* =========================================================
   Global
   ========================================================= */

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

body {
	color: var(--computilize-deep-slate);
	background: var(--computilize-white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	color: var(--computilize-navy);
}

a {
	color: var(--computilize-electric-blue);
}

a:hover {
	color: var(--computilize-power-blue);
}

/* =========================================================
   WordPress Buttons
   ========================================================= */

.wp-block-button__link {
	background: var(--computilize-power-blue);
	color: var(--computilize-white);
	border-radius: 8px;
	transition:
		background-color 0.2s ease,
		transform 0.2s ease,
		box-shadow 0.2s ease;
}

.wp-block-button__link:hover,
.wp-block-button__link:focus-visible {
	background: var(--computilize-electric-blue);
	color: var(--computilize-white);
	transform: translateY(-1px);
	box-shadow: 0 8px 24px rgba(7, 91, 232, 0.20);
}

/* =========================================================
   Utility Classes
   ========================================================= */

.computilize-gradient {
	background: var(--computilize-gradient);
}

.computilize-gradient-text {
	background: var(--computilize-gradient);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.computilize-navy-section {
	background: var(--computilize-navy);
	color: var(--computilize-white);
}

.computilize-light-section {
	background: var(--computilize-ice-white);
}

```css
/* =========================================================
   Computilize Header
   ========================================================= */

.computilize-header {
	width: 100%;
	position: relative;
	z-index: 1000;

	background: var(--computilize-white);
	border-bottom: 1px solid var(--computilize-cloud-gray);

	box-shadow: 0 4px 22px rgba(7, 27, 114, 0.04);
}

.computilize-header-inner {
	width: 100%;
	max-width: 1240px;

	margin: 0 auto;
	padding: 17px 24px;

	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 34px;
}

/* Logo */

.computilize-logo {
	display: inline-flex;
	align-items: center;

	flex-shrink: 0;

	text-decoration: none;
}

.computilize-logo img {
	display: block;

	width: 255px;
	max-width: 100%;
	height: auto;
}

/* Desktop navigation */

.computilize-nav-wrap {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 28px;

	margin-left: auto;
}

.computilize-navigation {
	display: flex;
	align-items: center;
}

.computilize-nav {
	display: flex;
	align-items: center;
	gap: 25px;

	margin: 0;
	padding: 0;

	list-style: none;
}

.computilize-nav li {
	margin: 0;
	padding: 0;
}

.computilize-nav a {
	position: relative;

	display: inline-block;

	padding: 8px 0;

	color: var(--computilize-navy);

	font-size: 15px;
	font-weight: 650;
	line-height: 1.2;

	text-decoration: none;

	transition:
		color 0.2s ease;
}

.computilize-nav a::after {
	content: "";

	position: absolute;

	left: 0;
	bottom: 1px;

	width: 0;
	height: 2px;

	border-radius: 10px;

	background: var(--computilize-gradient);

	transition: width 0.2s ease;
}

.computilize-nav a:hover,
.computilize-nav a:focus-visible {
	color: var(--computilize-electric-blue);
}

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

/* Header CTA */

.computilize-header-cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;

	min-height: 44px;

	padding: 12px 22px;

	background: var(--computilize-power-blue);
	color: var(--computilize-white);

	border: 1px solid var(--computilize-power-blue);
	border-radius: 9px;

	box-shadow: 0 8px 20px rgba(7, 91, 232, 0.18);

	font-size: 15px;
	font-weight: 700;
	line-height: 1;

	text-decoration: none;

	transition:
		background-color 0.2s ease,
		border-color 0.2s ease,
		transform 0.2s ease,
		box-shadow 0.2s ease;
}

.computilize-header-cta:hover,
.computilize-header-cta:focus-visible {
	background: var(--computilize-electric-blue);
	border-color: var(--computilize-electric-blue);
	color: var(--computilize-white);

	transform: translateY(-1px);

	box-shadow: 0 10px 28px rgba(7, 137, 245, 0.24);
}

/* =========================================================
   Mobile Toggle
   ========================================================= */

.computilize-mobile-toggle {
	display: none;

	width: 44px;
	height: 44px;

	padding: 9px;

	background: transparent;

	border: 1px solid var(--computilize-cloud-gray);
	border-radius: 9px;

	cursor: pointer;
}

.computilize-mobile-toggle span {
	display: block;

	width: 24px;
	height: 2px;

	margin: 5px auto;

	background: var(--computilize-navy);

	border-radius: 4px;

	transition:
		transform 0.2s ease,
		opacity 0.2s ease;
}

.computilize-mobile-toggle.is-open span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.computilize-mobile-toggle.is-open span:nth-child(2) {
	opacity: 0;
}

.computilize-mobile-toggle.is-open span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

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

@media (max-width: 980px) {

	.computilize-header-inner {
		position: relative;

		padding: 14px 20px;
	}

	.computilize-logo img {
		width: 215px;
	}

	.computilize-mobile-toggle {
		display: block;

		margin-left: auto;
	}

	.computilize-nav-wrap {
		display: none;

		position: absolute;

		top: calc(100% + 1px);
		left: 0;
		right: 0;

		width: 100%;

		margin: 0;
		padding: 22px 20px 24px;

		flex-direction: column;
		align-items: stretch;
		gap: 20px;

		background: var(--computilize-white);

		border-bottom: 1px solid var(--computilize-cloud-gray);

		box-shadow: 0 18px 35px rgba(7, 27, 114, 0.10);
	}

	.computilize-nav-wrap.is-open {
		display: flex;
	}

	.computilize-navigation {
		width: 100%;
	}

	.computilize-nav {
		width: 100%;

		flex-direction: column;
		align-items: stretch;
		gap: 0;
	}

	.computilize-nav li {
		width: 100%;

		border-bottom: 1px solid var(--computilize-cloud-gray);
	}

	.computilize-nav a {
		display: block;

		width: 100%;

		padding: 15px 2px;

		font-size: 16px;
	}

	.computilize-nav a::after {
		display: none;
	}

	.computilize-header-cta {
		width: 100%;

		min-height: 48px;
	}
}

@media (max-width: 520px) {

	.computilize-header-inner {
		padding: 13px 16px;
	}

	.computilize-logo img {
		width: 180px;
	}

	.computilize-nav-wrap {
		padding-left: 16px;
		padding-right: 16px;
	}
}
```