/*
Theme Name: DIY Embedded
Theme URI: https://diyembedded.com
Author: DIY Embedded
Author URI: https://diyembedded.com
Description: Professional IoT & Embedded Systems Consultancy Theme — Custom firmware development, PCB design services, industrial IoT solutions, and embedded software development.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
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: diyembedded
Tags: iot, embedded-systems, consultancy, bootstrap, responsive, custom-menu, featured-images, threaded-comments
*/

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
    --diy-primary: #0d6efd;
    --diy-primary-dark: #0a58ca;
    --diy-secondary: #00c9a7;
    --diy-dark: #0b1120;
    --diy-dark-light: #131b2e;
    --diy-gray-100: #f8f9fa;
    --diy-gray-200: #e9ecef;
    --diy-gray-600: #6c757d;
    --diy-gray-800: #343a40;
    --diy-white: #ffffff;
    --diy-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --diy-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --diy-transition: all 0.3s ease;
    --diy-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --diy-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --diy-radius: 12px;
    --diy-radius-sm: 8px;
}

/* ============================================
   Global Reset & Base
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--diy-font-primary);
    color: var(--diy-gray-800);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    transition: var(--diy-transition);
}

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--diy-dark);
}

h1 { font-size: 3.2rem; }
h2 { font-size: 2.4rem; }
h3 { font-size: 1.5rem; }

.section-subtitle {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--diy-secondary);
    margin-bottom: 0.5rem;
    display: inline-block;
}

.section-title {
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--diy-gray-600);
    max-width: 640px;
    margin: 0 auto 3rem;
}

/* ============================================
   Buttons
   ============================================ */
.btn-diy-primary {
    background: var(--diy-primary);
    color: var(--diy-white);
    border: none;
    padding: 14px 32px;
    border-radius: var(--diy-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--diy-transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-diy-primary:hover {
    background: var(--diy-primary-dark);
    color: var(--diy-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.35);
}

.btn-diy-outline {
    background: transparent;
    color: var(--diy-white);
    border: 2px solid rgba(255, 255, 255, 0.4);
    padding: 12px 30px;
    border-radius: var(--diy-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--diy-transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-diy-outline:hover {
    background: var(--diy-white);
    color: var(--diy-dark);
    border-color: var(--diy-white);
}

.btn-diy-secondary {
    background: var(--diy-secondary);
    color: var(--diy-white);
    border: none;
    padding: 14px 32px;
    border-radius: var(--diy-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--diy-transition);
}

.btn-diy-secondary:hover {
    background: #00b396;
    color: var(--diy-white);
    transform: translateY(-2px);
}

/* ============================================
   Navigation
   ============================================ */
.navbar-diy {
    padding: 16px 0;
    transition: var(--diy-transition);
    background: transparent;
    position: absolute;
    width: 100%;
    z-index: 1000;
}

.navbar-diy.scrolled {
    background: rgba(11, 17, 32, 0.95);
    backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.navbar-diy .navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--diy-white);
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-diy .navbar-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: var(--diy-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.navbar-diy .nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    padding: 8px 16px !important;
    font-size: 0.95rem;
    transition: var(--diy-transition);
}

.navbar-diy .nav-link:hover,
.navbar-diy .nav-link.active {
    color: var(--diy-white);
}

.navbar-diy .nav-cta {
    background: var(--diy-primary);
    color: var(--diy-white) !important;
    border-radius: var(--diy-radius-sm);
    padding: 10px 24px !important;
    margin-left: 8px;
}

.navbar-diy .nav-cta:hover {
    background: var(--diy-primary-dark);
}

.navbar-toggler {
    border: none;
    padding: 0;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--diy-dark) 0%, #1a2744 50%, #0d3b66 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(13, 110, 253, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 201, 167, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--diy-white);
    margin-bottom: 1.5rem;
    line-height: 1.15;
}

.hero-content h1 .text-gradient {
    background: linear-gradient(135deg, var(--diy-primary), var(--diy-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    max-width: 540px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat .stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--diy-white);
    display: block;
}

.hero-stat .stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    position: relative;
    z-index: 2;
}

.hero-image-wrapper {
    position: relative;
    padding: 20px;
}

.hero-code-block {
    background: var(--diy-dark-light);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--diy-radius);
    padding: 24px;
    font-family: var(--diy-font-mono);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    box-shadow: var(--diy-shadow-lg);
    overflow: hidden;
}

.hero-code-block .code-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-code-block .code-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #28c840; }

.hero-code-block .code-line {
    margin-bottom: 4px;
    line-height: 1.6;
}

.code-keyword { color: #c678dd; }
.code-function { color: #61afef; }
.code-string { color: #98c379; }
.code-comment { color: #5c6370; }
.code-type { color: #e5c07b; }
.code-number { color: #d19a66; }

.hero-floating-badge {
    position: absolute;
    background: var(--diy-white);
    border-radius: var(--diy-radius-sm);
    padding: 12px 16px;
    box-shadow: var(--diy-shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--diy-dark);
    animation: float 3s ease-in-out infinite;
}

.hero-floating-badge.badge-top {
    top: 0;
    right: 0;
    animation-delay: 0s;
}

.hero-floating-badge.badge-bottom {
    bottom: 20px;
    left: 0;
    animation-delay: 1.5s;
}

.hero-floating-badge .badge-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.badge-icon.bg-success-soft { background: rgba(0, 201, 167, 0.15); color: var(--diy-secondary); }
.badge-icon.bg-primary-soft { background: rgba(13, 110, 253, 0.15); color: var(--diy-primary); }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ============================================
   Trusted By / Logos
   ============================================ */
.trusted-section {
    background: var(--diy-gray-100);
    padding: 40px 0;
}

.trusted-section p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--diy-gray-600);
    font-weight: 600;
}

.trusted-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trusted-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--diy-gray-600);
    opacity: 0.5;
    transition: var(--diy-transition);
}

.trusted-logo:hover {
    opacity: 0.8;
}

/* ============================================
   Services Section
   ============================================ */
.services-section {
    padding: 100px 0;
    background: var(--diy-white);
}

.service-card {
    background: var(--diy-white);
    border: 1px solid var(--diy-gray-200);
    border-radius: var(--diy-radius);
    padding: 36px 28px;
    height: 100%;
    transition: var(--diy-transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--diy-primary), var(--diy-secondary));
    transform: scaleX(0);
    transition: var(--diy-transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--diy-shadow-lg);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.1), rgba(0, 201, 167, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--diy-primary);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--diy-gray-600);
    font-size: 0.95rem;
    line-height: 1.7;
}

.service-card .service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--diy-primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 16px;
}

.service-card .service-link:hover {
    gap: 10px;
}

/* ============================================
   Industries Section
   ============================================ */
.industries-section {
    padding: 100px 0;
    background: var(--diy-gray-100);
}

.industry-card {
    background: var(--diy-white);
    border-radius: var(--diy-radius);
    padding: 32px 24px;
    text-align: center;
    height: 100%;
    transition: var(--diy-transition);
    border: 1px solid transparent;
}

.industry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--diy-shadow);
    border-color: var(--diy-gray-200);
}

.industry-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.industry-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 0.9rem;
    color: var(--diy-gray-600);
}

/* ============================================
   Process Section
   ============================================ */
.process-section {
    padding: 100px 0;
    background: var(--diy-white);
}

.process-step {
    text-align: center;
    position: relative;
    padding: 0 16px;
}

.process-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--diy-primary), var(--diy-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--diy-white);
    margin: 0 auto 20px;
}

.process-step h4 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--diy-gray-600);
}

/* ============================================
   Technologies Section
   ============================================ */
.tech-section {
    padding: 100px 0;
    background: var(--diy-dark);
    color: var(--diy-white);
}

.tech-section .section-subtitle {
    color: var(--diy-secondary);
}

.tech-section .section-title {
    color: var(--diy-white);
}

.tech-section .section-description {
    color: rgba(255, 255, 255, 0.6);
}

.tech-badge {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--diy-radius-sm);
    padding: 16px 24px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    transition: var(--diy-transition);
    font-size: 0.95rem;
}

.tech-badge:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ============================================
   Blog Section
   ============================================ */
.blog-section {
    padding: 100px 0;
    background: var(--diy-gray-100);
}

.blog-card {
    background: var(--diy-white);
    border-radius: var(--diy-radius);
    overflow: hidden;
    height: 100%;
    transition: var(--diy-transition);
    border: 1px solid var(--diy-gray-200);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--diy-shadow-lg);
    border-color: transparent;
}

.blog-card-image {
    height: 220px;
    background: linear-gradient(135deg, var(--diy-dark), #1a2744);
    position: relative;
    overflow: hidden;
}

.blog-card-image .blog-category {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--diy-primary);
    color: var(--diy-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-card-body {
    padding: 24px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--diy-gray-600);
}

.blog-card-body h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-card-body h3 a {
    color: var(--diy-dark);
}

.blog-card-body h3 a:hover {
    color: var(--diy-primary);
}

.blog-card-body p {
    font-size: 0.9rem;
    color: var(--diy-gray-600);
    line-height: 1.7;
    margin-bottom: 16px;
}

.blog-card .read-more {
    color: var(--diy-primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.blog-card .read-more:hover {
    gap: 10px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--diy-primary), #0a58ca);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section h2 {
    color: var(--diy-white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.15rem;
    margin-bottom: 2rem;
}

.cta-section .btn-diy-outline {
    border-color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Testimonials
   ============================================ */
.testimonials-section {
    padding: 100px 0;
    background: var(--diy-white);
}

.testimonial-card {
    background: var(--diy-gray-100);
    border-radius: var(--diy-radius);
    padding: 32px;
    height: 100%;
    position: relative;
}

.testimonial-card .quote-icon {
    font-size: 2rem;
    color: var(--diy-primary);
    opacity: 0.3;
    margin-bottom: 16px;
}

.testimonial-card p {
    font-size: 1rem;
    font-style: italic;
    color: var(--diy-gray-800);
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--diy-primary), var(--diy-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--diy-white);
    font-weight: 700;
    font-size: 1rem;
}

.testimonial-author .author-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--diy-dark);
}

.testimonial-author .author-role {
    font-size: 0.8rem;
    color: var(--diy-gray-600);
}

/* ============================================
   Footer
   ============================================ */
.footer-section {
    background: var(--diy-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--diy-white);
    margin-bottom: 16px;
    display: block;
}

.footer-section p {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 20px;
    max-width: 320px;
}

.footer-section h5 {
    color: var(--diy-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    transition: var(--diy-transition);
}

.footer-links a:hover {
    color: var(--diy-white);
    padding-left: 4px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--diy-transition);
}

.footer-social a:hover {
    background: var(--diy-primary);
    color: var(--diy-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    margin-top: 60px;
    font-size: 0.85rem;
}

/* ============================================
   Sidebar & Widgets
   ============================================ */
.sidebar .widget {
    background: var(--diy-white);
    border: 1px solid var(--diy-gray-200);
    border-radius: var(--diy-radius);
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar .widget h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--diy-primary);
}

/* ============================================
   Single Post
   ============================================ */
.single-post-header {
    background: linear-gradient(135deg, var(--diy-dark) 0%, #1a2744 100%);
    padding: 160px 0 80px;
}

.single-post-content {
    padding: 60px 0;
}

.single-post-content .entry-content {
    font-size: 1.05rem;
    line-height: 1.9;
}

.single-post-content .entry-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.single-post-content .entry-content p {
    margin-bottom: 1.5rem;
}

/* ============================================
   Archive / Blog List
   ============================================ */
.archive-header {
    background: linear-gradient(135deg, var(--diy-dark) 0%, #1a2744 100%);
    padding: 160px 0 60px;
    text-align: center;
}

.archive-header h1 {
    color: var(--diy-white);
}

/* ============================================
   Pagination
   ============================================ */
.pagination-diy .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--diy-white);
    border: 1px solid var(--diy-gray-200);
    color: var(--diy-gray-800);
    font-weight: 600;
    transition: var(--diy-transition);
    margin: 0 4px;
}

.pagination-diy .page-numbers.current,
.pagination-diy .page-numbers:hover {
    background: var(--diy-primary);
    color: var(--diy-white);
    border-color: var(--diy-primary);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 991px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 24px;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-visual {
        margin-top: 40px;
    }

    .navbar-collapse {
        background: rgba(11, 17, 32, 0.98);
        border-radius: var(--diy-radius);
        padding: 20px;
        margin-top: 10px;
    }
}

@media (max-width: 767px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    h2 {
        font-size: 1.75rem;
    }

    .services-section,
    .industries-section,
    .process-section,
    .tech-section,
    .blog-section,
    .cta-section,
    .testimonials-section {
        padding: 60px 0;
    }

    .trusted-logos {
        gap: 24px;
    }
}