/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg-dark: #0a0a0a;
    --color-bg-darker: #050505;
    --color-text-light: #ffffff;
    --color-text-gray: #b0b0b0;
    --color-accent: #ff4444;
    --color-accent-hover: #ff6666;
    --color-overlay: rgba(0, 0, 0, 0.7);
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-medium);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    height: 70px;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo {
    height: 55px;
    width: auto;
    object-fit: contain;
}

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

.nav-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-fast);
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-medium);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-text-light);
    transition: all var(--transition-medium);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    margin-top: 70px;
    overflow: hidden;
}

.hero-banner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    filter: grayscale(40%) brightness(0.7) contrast(1.1);
    animation: fadeInScale 1s ease-out;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 4rem 20px;
    text-align: center;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--color-text-gray);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

/* Animations */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 0.6;
        transform: scale(1);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.fade-in-delay {
    animation: fadeInUp 0.8s ease-out 0.3s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Articles Section */
.articles-section {
    padding: 5rem 0;
    background-color: var(--color-bg-darker);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.article-card {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }
.article-card:nth-child(4) { animation-delay: 0.4s; }
.article-card:nth-child(5) { animation-delay: 0.5s; }
.article-card:nth-child(6) { animation-delay: 0.6s; }

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 68, 68, 0.3);
}

.article-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.article-image-wrapper {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.article-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.1) 0%, rgba(255, 68, 68, 0.05) 100%);
    position: relative;
}

.article-image-placeholder::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
}

.article-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-medium);
}

.article-card:hover .article-image-wrapper img {
    transform: scale(1.05);
}

.article-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.article-card:hover .article-overlay {
    opacity: 1;
}

.read-more {
    color: var(--color-text-light);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: translateY(10px);
    transition: transform var(--transition-medium);
}

.article-card:hover .read-more {
    transform: translateY(0);
}

.article-content {
    padding: 1.5rem;
}

.article-date {
    font-size: 0.85rem;
    color: var(--color-text-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 0.75rem;
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.article-card:hover .article-title {
    color: var(--color-accent);
}

.article-excerpt {
    color: var(--color-text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Article Page */
.article-page {
    padding: 6rem 0 4rem;
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

.back-link {
    display: inline-block;
    color: var(--color-text-gray);
    text-decoration: none;
    margin-bottom: 2rem;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.back-link:hover {
    color: var(--color-accent);
}

.article-header {
    margin-bottom: 3rem;
    text-align: center;
}

.article-meta {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.article-page-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.article-image-full {
    width: 100%;
    height: 400px;
    margin-bottom: 3rem;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.article-image-placeholder-full {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.1) 0%, rgba(255, 68, 68, 0.05) 100%);
}

.article-image-full-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-navigation {
    display: flex;
    gap: 2rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.article-nav-link {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-decoration: none;
    color: var(--color-text-light);
    transition: all var(--transition-medium);
}

.article-nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.article-nav-prev {
    text-align: left;
}

.article-nav-next {
    text-align: right;
    flex-direction: row-reverse;
}

.article-nav-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.article-nav-label {
    font-size: 0.85rem;
    color: var(--color-text-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-nav-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    line-height: 1.4;
}

.article-nav-arrow {
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: bold;
    flex-shrink: 0;
}

.article-paragraph {
    margin-bottom: 1.5rem;
    color: var(--color-text-gray);
}

.article-subtitle {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    margin: 2.5rem 0 1.5rem;
    color: var(--color-text-light);
}

.article-subtitle-small {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2rem 0 1rem;
    color: var(--color-text-light);
}

.article-divider {
    width: 60px;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 3rem auto;
    border-radius: 1px;
}

.article-list {
    list-style: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.article-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-gray);
    line-height: 1.8;
}

.article-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.2rem;
}

.article-list-numbered {
    list-style-type: decimal;
    padding-left: 1.5rem;
}

.article-list-numbered li {
    padding-left: 0;
    list-style-type: decimal;
}

.article-list-numbered li::before {
    display: none;
}

/* About Section */
.about-section {
    padding: 5rem 0;
    background-color: var(--color-bg-dark);
    text-align: center;
}

.about-text {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--color-text-gray);
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: var(--color-bg-darker);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-gray);
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav {
        position: relative;
        justify-content: center;
    }

    .logo-link {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .logo-link:hover {
        transform: translateX(-50%) scale(1.05);
    }

    .nav-toggle {
        display: flex;
        position: absolute;
        right: 20px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(-100%);
        transition: transform var(--transition-medium);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .hero {
        min-height: 80vh;
    }

    .hero-content {
        padding: 2rem 20px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .article-image-wrapper {
        height: 200px;
    }

    .article-image-full {
        height: 250px;
    }

    .article-body {
        font-size: 1rem;
    }

    .article-navigation {
        flex-direction: column;
        gap: 1rem;
    }

    .article-nav-link {
        padding: 1rem;
    }

    .article-nav-title {
        font-size: 0.9rem;
    }

    .article-subtitle {
        font-size: 1.5rem;
    }

    .article-subtitle-small {
        font-size: 1.25rem;
    }

    .section-title {
        margin-bottom: 2rem;
    }

    .articles-section,
    .about-section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav {
        padding: 1rem 15px;
    }

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

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

    .article-content {
        padding: 1.25rem;
    }

    .article-title {
        font-size: 1.25rem;
    }

    .article-subtitle {
        font-size: 1.25rem;
    }

    .article-subtitle-small {
        font-size: 1.1rem;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Loading Optimization */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-darker);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}