/*
Theme Name: RK Tech
Theme URI: https://rktech.local/
Author: RK Tech
Author URI: https://rktech.local/
Description: Custom single-page landing theme for RK Tech — web development, mobile apps, ERP software, AI-augmented engineering and SEO services. Built fast, minimal and SEO-first.
Version: 1.0.0
Requires at least: 6.4
Requires PHP: 7.4
Tested up to: 6.7
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: rk-tech
*/

/* ==========================================================================
   0. Design tokens
   ========================================================================== */
:root{
	--bg: #070a12;
	--bg-elevated: #0c1120;
	--surface: #111729;
	--surface-hover: #161e35;
	--border: #212a45;
	--border-soft: #1a2238;

	--text: #edf0f7;
	--text-muted: #a2abc2;
	--text-faint: #6b7590;

	--primary: #5b6ef5;
	--primary-hover: #7684ff;
	--primary-soft: rgba(91,110,245,.14);
	--accent: #22d3ee;
	--accent-soft: rgba(34,211,238,.14);
	--warm: #f7b955;

	--radius-lg: 20px;
	--radius: 14px;
	--radius-sm: 9px;

	--shadow-lg: 0 30px 80px -30px rgba(0,0,0,.55);
	--shadow: 0 12px 30px -12px rgba(0,0,0,.45);

	--container: 1180px;
	--gutter: clamp(1.25rem, 4vw, 2.5rem);

	--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Inter", sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

	--ease: cubic-bezier(.16,.8,.3,1);
}

/* ==========================================================================
   1. Reset
   ========================================================================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce){
	html{ scroll-behavior: auto; }
	*, *::before, *::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}
body{
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-sans);
	font-size: 1rem;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}
img, svg{ max-width: 100%; height: auto; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4,p,figure{ margin: 0; }
button{ font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea{ font: inherit; color: inherit; }

.screen-reader-text{
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px,1px,1px,1px);
	white-space: nowrap;
	border: 0; padding: 0; margin: -1px;
}
.skip-link{
	position: absolute;
	left: 1rem; top: -100px;
	background: var(--primary);
	color: #fff;
	padding: .75rem 1.25rem;
	border-radius: var(--radius-sm);
	z-index: 999;
	transition: top .2s var(--ease);
}
.skip-link:focus{ top: 1rem; }

:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ==========================================================================
   2. Layout utilities
   ========================================================================== */
.container{
	width: 100%;
	max-width: var(--container);
	margin-inline: auto;
	padding-inline: var(--gutter);
}
section{ position: relative; }
.section-pad{ padding-block: clamp(4rem, 9vw, 7.5rem); }
.section-head{
	max-width: 640px;
	margin-bottom: clamp(2.5rem, 6vw, 3.75rem);
}
.section-head.center{ margin-inline: auto; text-align: center; }

.eyebrow{
	display: inline-flex;
	align-items: center;
	gap: .5rem;
	font-size: .8125rem;
	font-weight: 600;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--accent);
	margin-bottom: 1rem;
}
.eyebrow::before{
	content: "";
	width: 6px; height: 6px;
	border-radius: 50%;
	background: var(--accent);
	box-shadow: 0 0 0 4px var(--accent-soft);
}

h1, .h1{ font-size: clamp(2.25rem, 5.4vw, 3.75rem); line-height: 1.08; letter-spacing: -.02em; font-weight: 700; }
h2, .h2{ font-size: clamp(1.75rem, 3.6vw, 2.5rem); line-height: 1.15; letter-spacing: -.015em; font-weight: 700; }
h3, .h3{ font-size: 1.25rem; line-height: 1.3; font-weight: 600; }
.lede{ font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-muted); }

.gradient-text{
	background: linear-gradient(100deg, var(--text) 20%, var(--accent) 55%, var(--primary-hover) 85%);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

/* Buttons */
.btn{
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: .5rem;
	padding: .875rem 1.5rem;
	border-radius: var(--radius-sm);
	font-weight: 600;
	font-size: .9375rem;
	transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
	white-space: nowrap;
}
.btn-primary{
	background: linear-gradient(135deg, var(--primary), #4655d6);
	color: #fff;
	box-shadow: 0 10px 30px -10px rgba(91,110,245,.65);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 16px 36px -10px rgba(91,110,245,.8); }
.btn-secondary{
	background: transparent;
	color: var(--text);
	border: 1px solid var(--border);
}
.btn-secondary:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-block{ width: 100%; }

/* ==========================================================================
   3. Header / Nav
   ========================================================================== */
.site-header{
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(7,10,18,.72);
	backdrop-filter: saturate(160%) blur(14px);
	-webkit-backdrop-filter: saturate(160%) blur(14px);
	border-bottom: 1px solid var(--border-soft);
}
.site-header .container{
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 72px;
}
.site-branding{ display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.125rem; letter-spacing: -.01em; }
.site-branding .logo-mark{
	width: 32px; height: 32px;
	border-radius: 9px;
	background: linear-gradient(135deg, var(--primary), var(--accent));
	display: inline-flex; align-items: center; justify-content: center;
	color: #05070d; font-weight: 800; font-size: .95rem;
	flex: none;
}
.site-branding img.custom-logo{ max-height: 36px; width: auto; border-radius: 8px; }

.primary-nav{ display: flex; align-items: center; gap: 2.25rem; }
.primary-nav ul{ display: flex; align-items: center; gap: 2.25rem; }
.primary-nav a{
	font-size: .9375rem;
	font-weight: 500;
	color: var(--text-muted);
	transition: color .15s var(--ease);
}
.primary-nav a:hover, .primary-nav a:focus-visible{ color: var(--text); }
.header-cta{ display: flex; align-items: center; gap: 1rem; }
.header-cta .btn{ padding: .625rem 1.25rem; font-size: .875rem; }

.nav-toggle{
	display: none;
	width: 40px; height: 40px;
	border-radius: var(--radius-sm);
	border: 1px solid var(--border);
	align-items: center;
	justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
	content: "";
	display: block;
	width: 18px; height: 2px;
	background: var(--text);
	border-radius: 2px;
	position: relative;
	transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] span{ background: transparent; }
.nav-toggle[aria-expanded="true"] span::before{ transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 860px){
	.primary-nav{
		position: fixed;
		inset: 72px 0 0 0;
		background: var(--bg);
		flex-direction: column;
		align-items: stretch;
		padding: 1.5rem var(--gutter) 2rem;
		transform: translateY(-8px);
		opacity: 0;
		visibility: hidden;
		transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
		gap: 1.5rem;
		overflow-y: auto;
	}
	.primary-nav.is-open{ opacity: 1; transform: translateY(0); visibility: visible; }
	.primary-nav ul{ flex-direction: column; align-items: stretch; gap: 0; }
	.primary-nav ul li{ border-bottom: 1px solid var(--border-soft); }
	.primary-nav ul a{ display: block; padding: 1rem 0; font-size: 1.05rem; }
	.header-cta{ flex-direction: column; align-items: stretch; margin-top: .5rem; }
	.nav-toggle{ display: inline-flex; }
}

/* ==========================================================================
   4. Hero
   ========================================================================== */
.hero{
	padding-block: clamp(4.5rem, 11vw, 8rem) clamp(3.5rem, 8vw, 6rem);
	overflow: hidden;
}
.hero::before, .hero::after{
	content: "";
	position: absolute;
	width: 620px; height: 620px;
	border-radius: 50%;
	filter: blur(120px);
	opacity: .28;
	z-index: -1;
	pointer-events: none;
}
.hero::before{ background: var(--primary); top: -220px; left: -160px; }
.hero::after{ background: var(--accent); top: -60px; right: -200px; opacity: .2; }

.hero-inner{ max-width: 760px; }
.hero h1{ margin-bottom: 1.25rem; }
.hero .lede{ max-width: 560px; margin-bottom: 2.25rem; }
.hero-actions{ display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 3rem; }

.hero-stats{ display: grid; grid-template-columns: repeat(3, auto); gap: clamp(1.5rem, 4vw, 3rem); }
.hero-stats .stat-num{ font-size: 1.5rem; font-weight: 700; letter-spacing: -.01em; }
.hero-stats .stat-label{ font-size: .8125rem; color: var(--text-faint); margin-top: .2rem; }

/* ==========================================================================
   5. Services
   ========================================================================== */
.services-grid{
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 1.25rem;
}
.service-card{
	background: linear-gradient(180deg, var(--surface), var(--bg-elevated));
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: 2rem;
	transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.service-card:hover{
	transform: translateY(-4px);
	border-color: var(--border-soft);
	box-shadow: var(--shadow);
}
.service-icon{
	width: 48px; height: 48px;
	border-radius: 12px;
	background: var(--primary-soft);
	color: var(--accent);
	display: flex; align-items: center; justify-content: center;
	margin-bottom: 1.25rem;
}
.service-icon svg{ width: 24px; height: 24px; }
.service-card h3{ margin-bottom: .625rem; }
.service-card p{ color: var(--text-muted); font-size: .9375rem; }

/* ==========================================================================
   6. Approach / About (rich content area)
   ========================================================================== */
.approach{ background: var(--bg-elevated); border-block: 1px solid var(--border-soft); }
.approach-grid{
	display: grid;
	grid-template-columns: minmax(0,1fr) minmax(0,1fr);
	gap: clamp(2.5rem, 6vw, 5rem);
	align-items: start;
}
.approach-content{ font-size: 1.0625rem; color: var(--text-muted); }
.approach-content > *{ margin-bottom: 1.1em; }
.approach-content > *:last-child{ margin-bottom: 0; }
.approach-content strong{ color: var(--text); }
.approach-content ul{ padding-left: 0; }
.approach-content ul li{
	position: relative;
	padding-left: 1.6em;
	margin-bottom: .6em;
}
.approach-content ul li::before{
	content: "";
	position: absolute; left: 0; top: .55em;
	width: 7px; height: 7px;
	border-radius: 2px;
	background: var(--accent);
}
.approach-panel{
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: clamp(1.5rem, 3vw, 2.25rem);
}
.approach-panel-row{
	display: flex;
	gap: 1rem;
	padding-block: 1rem;
	border-bottom: 1px solid var(--border-soft);
}
.approach-panel-row:first-child{ padding-top: 0; }
.approach-panel-row:last-child{ border-bottom: 0; padding-bottom: 0; }
.approach-panel-row .dot{
	flex: none;
	width: 10px; height: 10px;
	margin-top: .4rem;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--primary), var(--accent));
}

@media (max-width: 860px){
	.approach-grid{ grid-template-columns: 1fr; }
}

/* ==========================================================================
   7. Process
   ========================================================================== */
.process-grid{
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
	gap: 1.5rem;
	counter-reset: step;
}
.process-step{ position: relative; padding-top: 2.75rem; }
.process-step::before{
	counter-increment: step;
	content: counter(step, decimal-leading-zero);
	position: absolute;
	top: 0; left: 0;
	font-family: var(--font-mono);
	font-size: .8125rem;
	font-weight: 600;
	color: var(--accent);
	letter-spacing: .05em;
}
.process-step::after{
	content: "";
	position: absolute;
	top: .35rem; left: 2.6rem;
	right: -1.5rem;
	height: 1px;
	background: var(--border);
}
.process-step:last-child::after{ display: none; }
.process-step h3{ margin-bottom: .5rem; }
.process-step p{ color: var(--text-muted); font-size: .9375rem; }
@media (max-width: 700px){
	.process-step::after{ display: none; }
}

/* ==========================================================================
   8. Contact
   ========================================================================== */
.contact{ background: var(--bg-elevated); border-top: 1px solid var(--border-soft); }
.contact-grid{
	display: grid;
	grid-template-columns: minmax(0,1fr) minmax(0,1fr);
	gap: clamp(2.5rem, 6vw, 5rem);
	align-items: start;
}
.contact-info-item{ display: flex; gap: 1rem; margin-bottom: 1.75rem; }
.contact-info-item .icon{
	flex: none;
	width: 44px; height: 44px;
	border-radius: 11px;
	background: var(--surface);
	border: 1px solid var(--border);
	display: flex; align-items: center; justify-content: center;
	color: var(--accent);
}
.contact-info-item .icon svg{ width: 20px; height: 20px; }
.contact-info-item a{ color: var(--text); font-weight: 600; }
.contact-info-item a:hover{ color: var(--accent); }
.contact-info-item span{ display: block; font-size: .8125rem; color: var(--text-faint); margin-bottom: .2rem; }

.contact-form{
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: clamp(1.5rem, 3vw, 2.25rem);
}
.form-row{ margin-bottom: 1.1rem; }
.form-row label{ display: block; font-size: .8125rem; font-weight: 600; color: var(--text-muted); margin-bottom: .4rem; }
.form-row input, .form-row textarea{
	width: 100%;
	background: var(--bg-elevated);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	padding: .75rem .9rem;
	color: var(--text);
	transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.form-row input:focus, .form-row textarea:focus{
	outline: none;
	border-color: var(--primary);
	box-shadow: 0 0 0 3px var(--primary-soft);
}
.form-row textarea{ min-height: 120px; resize: vertical; }
.hp-field{ position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-notice{
	border-radius: var(--radius-sm);
	padding: .85rem 1rem;
	font-size: .875rem;
	margin-bottom: 1.1rem;
}
.form-notice.success{ background: rgba(52,211,153,.12); color: #6ee7b7; border: 1px solid rgba(52,211,153,.3); }
.form-notice.error{ background: rgba(248,113,113,.12); color: #fca5a5; border: 1px solid rgba(248,113,113,.3); }

@media (max-width: 860px){
	.contact-grid{ grid-template-columns: 1fr; }
}

/* ==========================================================================
   9. Footer
   ========================================================================== */
.site-footer{ border-top: 1px solid var(--border-soft); padding-block: 2.75rem; }
.footer-grid{
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
}
.footer-brand{ display: flex; align-items: center; gap: .6rem; font-weight: 700; }
.footer-tagline{ color: var(--text-faint); font-size: .875rem; margin-top: .35rem; }
.footer-links{ display: flex; gap: 1.5rem; }
.footer-links a{ font-size: .875rem; color: var(--text-muted); }
.footer-links a:hover{ color: var(--accent); }
.footer-social{ display: flex; gap: .75rem; }
.footer-social a{
	width: 38px; height: 38px;
	border-radius: 10px;
	border: 1px solid var(--border);
	display: flex; align-items: center; justify-content: center;
	color: var(--text-muted);
	transition: color .15s var(--ease), border-color .15s var(--ease);
}
.footer-social a:hover{ color: var(--accent); border-color: var(--accent); }
.footer-social svg{ width: 18px; height: 18px; }
.footer-bottom{
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--border-soft);
	font-size: .8125rem;
	color: var(--text-faint);
	display: flex;
	flex-wrap: wrap;
	gap: .5rem 1.5rem;
	justify-content: space-between;
}

/* ==========================================================================
   10. Reveal-on-scroll
   ========================================================================== */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ==========================================================================
   11. Misc / core block compatibility
   ========================================================================== */
.wp-block-image{ margin: 1.5em 0; border-radius: var(--radius); overflow: hidden; }
::selection{ background: var(--primary); color: #fff; }