/*
Theme Name: SmartHub Aurora
Theme URI: https://smarthubdigital.com.br
Description: Premium WordPress theme with aurora animation, glassmorphism design, and bilingual PT-BR/EN support
Version: 1.0.0
Author: SmartHub Digital
Author URI: https://smarthubdigital.com.br
License: GPL-2.0+
License URI: http://www.gnu.org/licenses/gpl-2.0.txt
Text Domain: smarthub-theme
Domain Path: /languages
*/

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    color: inherit;
    text-decoration: none;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #09090f;
    color: #e0e0ff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Aurora Background Animation */
@keyframes aurora {
    0% {
        background-position: 0% 50%;
        opacity: 0.6;
    }
    25% {
        opacity: 0.75;
    }
    50% {
        background-position: 100% 50%;
        opacity: 0.85;
    }
    75% {
        opacity: 0.75;
    }
    100% {
        background-position: 0% 50%;
        opacity: 0.6;
    }
}

.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #09090f 0%, #0f0f1a 50%, #09090f 100%);
}

.aurora-effect {
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 600px 300px at 20% 30%, rgba(79, 70, 229, 0.15) 0%, transparent 70%),
        radial-gradient(ellipse 700px 350px at 80% 20%, rgba(5, 150, 105, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse 650px 320px at 50% 60%, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    background-position: 0% 50%;
    background-size: 200% 200%;
    animation: aurora 20s ease-in-out infinite;
}

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #6366f1;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Navbar */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 9, 15, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    letter-spacing: -0.5px;
    text-decoration: none;
}

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

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-menu li {
    list-style: none;
}

.nav-menu li a,
.nav-menu a,
.nav-item a {
    color: #a0afd9 !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    text-decoration: none !important;
    position: relative;
    display: block;
    padding: 0.5rem 0;
    border-bottom: none !important;
}

.nav-menu li a:hover,
.nav-menu a:hover,
.nav-item a:hover {
    color: #6366f1 !important;
}

.nav-menu li.current-menu-item > a,
.nav-menu li.current_page_item > a,
.nav-item.current-menu-item a,
.nav-item.active a {
    color: #6366f1 !important;
}

.nav-menu li.current-menu-item > a::after,
.nav-menu li.current_page_item > a::after,
.nav-item.current-menu-item a::after,
.nav-item.active a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #6366f1 0%, #06b6d4 100%);
    border-radius: 1px;
}

.lang-toggle {
    display: flex;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 6px;
    padding: 0.4rem;
}

.lang-btn {
    background: none;
    border: none;
    color: #a0afd9;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.lang-btn.active {
    background: rgba(99, 102, 241, 0.3);
    color: #6366f1;
}

/* Remove default WordPress menu styling */
.nav-menu ul {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu .sub-menu {
    display: none;
}

/* Hamburger Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #a0afd9;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-container {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .nav-logo {
        font-size: 1.2rem;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: rgba(9, 9, 15, 0.95);
        backdrop-filter: blur(10px);
        padding: 2rem;
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 50;
    }

    .nav-menu.open {
        transform: translateX(0);
    }

    .nav-menu,
    .nav-menu ul {
        gap: 0;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-menu li a,
    .nav-item a {
        font-size: 0.9rem;
        padding: 1rem 0;
    }

    .lang-toggle {
        order: 3;
        width: 100%;
        max-width: 150px;
        margin-top: 1rem;
    }

    .lang-btn {
        flex: 1;
        padding: 0.5rem;
        font-size: 0.8rem;
    }
}

/* Main Container */
main {
    position: relative;
    z-index: 1;
}

.page {
    display: block;
    opacity: 1;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
}

/* Hero */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 6rem 2rem;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero h1 .gradient {
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: #b0b8d9;
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #5558dc 100%);
    color: white;
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
    box-shadow: 0 8px 16px rgba(5, 150, 105, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(5, 150, 105, 0.4);
}

.btn-outline {
    background: transparent;
    color: #6366f1;
    border: 2px solid #6366f1;
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

/* Section Title */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-align: center;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #8b92b4;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 300;
}

/* Cards */
.card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

/* Product Cards */
.product-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #6366f1 0%, #059669 100%);
    opacity: 0.8;
}

.product-card:hover {
    transform: translateY(-12px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 24px 48px rgba(99, 102, 241, 0.2);
}

.product-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.product-card p {
    color: #a0afd9;
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Teaser Card */
.teaser-card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 2px dashed rgba(99, 102, 241, 0.3);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    transition: all 0.3s ease;
}

.teaser-card:hover {
    border-color: rgba(99, 102, 241, 0.6);
    background: rgba(20, 20, 30, 0.95);
}

.teaser-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.teaser-card h3 {
    font-size: 1.3rem;
    color: #b0b8d9;
    margin-bottom: 0.5rem;
}

.teaser-card p {
    color: #8b92b4;
    font-weight: 300;
}

/* Service Cards */
.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6366f1 0%, #06b6d4 100%);
    opacity: 0.6;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.service-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #ffffff;
}

.service-card p {
    color: #a0afd9;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.service-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: #a8b5ff;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Stats Section */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(20, 20, 30, 0.6);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1 0%, #059669 50%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #a0afd9;
    font-weight: 500;
}

/* Form */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    color: #b0b8d9;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

input, textarea, select {
    width: 100%;
    padding: 0.875rem;
    background: rgba(30, 30, 45, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e0e0ff;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #6366f1;
    background: rgba(30, 30, 45, 0.95);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 1.5rem;
}

.info-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.info-item h3 {
    color: #ffffff;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-item p {
    color: #a0afd9;
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Footer */
footer {
    background: #07070c;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 3rem 0 1rem;
    position: relative;
    margin-top: 5rem;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #6366f1 50%, transparent);
    opacity: 0.3;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: #a0afd9;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: #6366f1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    text-align: center;
    color: #7a82a0;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    section {
        padding: 3rem 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
    }

    .hero {
        min-height: 60vh;
        padding: 4rem 1.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        gap: 1rem;
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .product-cards, .service-cards {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1.5rem;
    }
}

/* Scroll Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.blog-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
    overflow: hidden;
}

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

.blog-card-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.8rem;
    font-size: 0.82rem;
    flex-wrap: wrap;
}

.blog-date {
    color: #8b92b4;
}

.blog-category {
    background: rgba(99, 102, 241, 0.2);
    color: #a8b5ff;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: 600;
}

.blog-card h3 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.blog-card p {
    color: #a0afd9;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.blog-author {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #06b6d4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-author span {
    color: #8b92b4;
    font-size: 0.85rem;
}

/* Blog page filters */
.blog-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.blog-filter {
    background: rgba(20, 20, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #a0afd9;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.blog-filter:hover, .blog-filter.active {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
    color: #6366f1;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(20, 20, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #a0afd9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

.pagination a:hover, .pagination .page-numbers.current {
    background: rgba(99, 102, 241, 0.3);
    border-color: #6366f1;
    color: #fff;
}

/* Courses */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.course-card {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.course-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(99, 102, 241, 0.8);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.course-image {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    color: #fff;
    font-size: 1.15rem;
    margin-bottom: 0.6rem;
}

.course-content p {
    color: #a0afd9;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.course-duration {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: #8b92b4;
    font-size: 0.85rem;
}

.course-level {
    background: rgba(5, 150, 105, 0.2);
    color: #34d399;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 600;
}

/* Single post */
.post-content {
    max-width: 800px;
    margin: 0 auto;
}

.post-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    font-size: 0.95rem;
}

.post-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #8b92b4;
}

.post-header {
    margin-bottom: 3rem;
}

.post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.post-thumbnail {
    margin: 2rem 0;
    border-radius: 12px;
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.post-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #b0b8d9;
}

.post-body h2,
.post-body h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.post-body p {
    margin-bottom: 1.5rem;
}

.post-body ul,
.post-body ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.post-body li {
    margin-bottom: 0.5rem;
}

.post-body blockquote {
    border-left: 4px solid #6366f1;
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: #a0afd9;
}

.post-body code {
    background: rgba(30, 30, 45, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: #06b6d4;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

.post-body pre {
    background: rgba(30, 30, 45, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.post-body pre code {
    background: none;
    border: none;
    padding: 0;
    color: #06b6d4;
}

.post-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.post-body th,
.post-body td {
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: left;
}

.post-body th {
    background: rgba(99, 102, 241, 0.1);
    color: #ffffff;
    font-weight: 600;
}

.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.post-navigation a {
    padding: 1.5rem;
    background: rgba(20, 20, 30, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: #6366f1;
    text-decoration: none;
    transition: all 0.3s ease;
}

.post-navigation a:hover {
    background: rgba(20, 20, 30, 0.95);
    border-color: rgba(255, 255, 255, 0.15);
}

.post-navigation .prev {
    text-align: left;
}

.post-navigation .next {
    text-align: right;
}

/* Related Posts */
.related-posts {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-posts h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* Comments */
.comments-area {
    margin-top: 4rem;
}

.comment-form label {
    color: #b0b8d9;
}

.comment-list,
.children {
    list-style: none;
}

.comment {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(20, 20, 30, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
}

.comment-author,
.comment-metadata {
    margin-bottom: 0.5rem;
}

.comment-text {
    color: #a0afd9;
    margin-top: 1rem;
}

/* Sidebar */
.sidebar {
    background: rgba(20, 20, 30, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.5rem;
}

.widget {
    margin-bottom: 2rem;
}

.widget:last-child {
    margin-bottom: 0;
}

.widget-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 600;
}

.widget ul {
    list-style: none;
}

.widget li {
    margin-bottom: 0.5rem;
}

.widget a {
    color: #a0afd9;
    text-decoration: none;
    transition: all 0.3s ease;
}

.widget a:hover {
    color: #6366f1;
}

/* 404 Page */
.error-404 {
    text-align: center;
    padding: 4rem 0;
}

.error-404 h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-404 p {
    font-size: 1.2rem;
    color: #b0b8d9;
    margin-bottom: 2rem;
}

/* Search Form */
.search-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.search-form input {
    flex: 1;
}

.search-form button {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, #6366f1 0%, #5558dc 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

/* Accessibility */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

@media (max-width: 768px) {
    .blog-grid, .course-grid {
        grid-template-columns: 1fr;
    }

    .post-navigation {
        grid-template-columns: 1fr;
    }
}