/* Dark glass editorial theme */

:root {
    --color-bg: #020617;
    --color-bg-soft: #020617;
    --color-surface: rgba(15, 23, 42, 0.96);

    --color-text: #e5e9f5;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;
    --color-text-inverse: #020617;

    --color-primary: #7dd3fc;
    --color-primary-hover: #38bdf8;
    --color-primary-soft: rgba(56, 189, 248, 0.16);

    --color-accent: #f97316;
    --color-accent-hover: #ea580c;

    --color-border: rgba(148, 163, 184, 0.35);

    --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.75);
    --shadow-md: 0 18px 50px rgba(15, 23, 42, 0.9);

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    --leading-tight: 1.15;
    --leading-relaxed: 1.6;

    --transition-fast: 150ms ease-out;
    --transition-base: 220ms cubic-bezier(0.19, 1, 0.22, 1);

    --radius-md: 0.75rem;
    --radius-lg: 1.25rem;
    --radius-xl: 1.75rem;
    --radius-full: 9999px;

    --container-max: 1120px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    color-scheme: dark;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.16), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(249, 115, 22, 0.14), transparent 55%),
        #020617;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-inline: var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-6);
    }
}

.section {
    padding-block: var(--space-12);
}

@media (min-width: 768px) {
    .section {
        padding-block: var(--space-16);
    }
}

.skip-link {
    position: absolute;
    top: -4rem;
    left: var(--space-4);
    z-index: 50;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: var(--font-semibold);
    box-shadow: var(--shadow-sm);
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: var(--space-4);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-sans);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: #f9fafb;
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    letter-spacing: -0.05em;
}

h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    letter-spacing: -0.04em;
}

h3 {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
}

p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
    color: var(--color-primary);
}

.section-heading {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.24em;
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
}

.section-heading::before {
    content: "";
    width: 40px;
    height: 1px;
    background: linear-gradient(to right, var(--color-accent), transparent);
}

.header {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(20px);
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.2), transparent 55%),
        rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
    gap: var(--space-4);
}

.brand {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: var(--font-extrabold);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.navbar-toggler {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(148, 163, 184, 0.6);
    background: rgba(15, 23, 42, 0.9);
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.navbar-toggler-icon {
    width: 18px;
    height: 2px;
    background: #e5e7eb;
    box-shadow: 0 -6px 0 #e5e7eb, 0 6px 0 #e5e7eb;
}

.navbar-toggler:hover {
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

@media (min-width: 992px) {
    .navbar-toggler {
        display: none;
    }
}

.header-nav {
    width: 100%;
}

@media (min-width: 992px) {
    .header-nav {
        width: auto;
        display: block !important;
    }
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding-block: var(--space-2);
}

@media (min-width: 992px) {
    .nav-menu {
        flex-direction: row;
        align-items: center;
        gap: var(--space-3);
        padding-block: 0;
    }
}

.nav-link {
    display: block;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.nav-link:hover {
    color: #f9fafb;
    background: rgba(15, 23, 42, 0.9);
    transform: translateY(-1px);
}

.hero-full {
    position: relative;
    min-height: clamp(430px, 72vh, 620px);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    overflow: hidden;
    border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.hero-full-image {
    position: absolute;
    inset: 0;
}

.hero-full-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(1.1) contrast(1.05);
    transition: transform var(--transition-base), filter var(--transition-base);
}

.hero-full::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.28), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(249, 115, 22, 0.25), transparent 55%),
        linear-gradient(to top, rgba(2, 6, 23, 0.98), rgba(15, 23, 42, 0.2));
}

.hero-full:hover .hero-full-image img {
    transform: scale(1.04);
    filter: saturate(1.2);
}

.hero-full-overlay {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: flex-end;
}

.hero-full-content {
    padding-block: var(--space-12);
    max-width: 640px;
}

@media (min-width: 768px) {
    .hero-full-content {
        padding-block: var(--space-16);
    }
}

.hero-full-content h1 {
    text-shadow: 0 30px 60px rgba(15, 23, 42, 0.95);
    margin-bottom: var(--space-3);
}

.hero-full-content p {
    font-size: var(--text-lg);
    color: #e5e7eb;
    margin-bottom: var(--space-4);
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    border: 1px solid rgba(248, 250, 252, 0.15);
    background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
    color: #0f172a;
    font-weight: var(--font-semibold);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-hero:hover {
    transform: translateY(-1px);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.95);
}

.category-strip {
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
    background:
        radial-gradient(circle at 0% 0%, rgba(15, 118, 110, 0.28), transparent 60%),
        rgba(15, 23, 42, 0.98);
}

.category-strip .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    padding-block: var(--space-4);
}

.category-strip-label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

.category-strip-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.category-strip-links a {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    border: 1px solid rgba(148, 163, 184, 0.5);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: #e5e7eb;
    background: rgba(15, 23, 42, 0.95);
    transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.category-strip-links a:hover {
    border-color: var(--color-primary);
    background: rgba(15, 23, 42, 0.8);
    transform: translateY(-1px);
}

.category-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: #e5e7eb;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.6);
}

.category-pill::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
}

.featured-section {
    padding-block: var(--space-12);
}

.featured-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .featured-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-8);
    }
}

.featured-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.4);
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.16), transparent 55%),
        rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.featured-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(56, 189, 248, 0.9);
}

.featured-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.featured-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base), filter var(--transition-base);
}

.featured-card:hover .featured-card-image img {
    transform: scale(1.06);
    filter: saturate(1.2);
}

.featured-card-body {
    padding: var(--space-5);
}

.featured-card-body h3 {
    margin-bottom: var(--space-2);
}

.featured-card-body p {
    font-size: var(--text-sm);
}

.featured-card-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-primary);
}

.featured-card-cta::after {
    content: "↗";
    font-size: 0.85em;
}

.stories-section {
    padding-bottom: var(--space-20);
}

.stories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .stories-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 992px) {
    .stories-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.story-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.4);
    background:
        radial-gradient(circle at 100% 0%, rgba(249, 115, 22, 0.18), transparent 60%),
        rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.story-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(249, 115, 22, 0.9);
}

.story-card-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.story-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base), filter var(--transition-base);
}

.story-card:hover .story-card-image img {
    transform: scale(1.05);
    filter: saturate(1.18);
}

.story-card-body {
    padding: var(--space-4);
}

.story-card-body h4 {
    margin-bottom: var(--space-2);
}

.story-card-body p {
    font-size: var(--text-sm);
}

.article-hero {
    height: clamp(320px, 45vh, 480px);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    margin-bottom: var(--space-10);
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: var(--shadow-md);
}

.article-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base), filter var(--transition-base);
}

.article-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(2, 6, 23, 0.98), rgba(15, 23, 42, 0.2));
}

.article-hero:hover img {
    transform: scale(1.03);
    filter: saturate(1.2);
}

.article-hero-content {
    position: absolute;
    inset-inline: 0;
    bottom: 0;
    padding: var(--space-6);
    z-index: 1;
}

.article-meta {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #e5e7eb;
}

.article-content-wrapper {
    max-width: 720px;
    margin: 0 auto;
    padding-bottom: var(--space-20);
}

.article-wrapper {
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.18), transparent 60%),
        rgba(15, 23, 42, 0.98);
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
    .article-wrapper {
        padding: var(--space-8);
    }
}

.article-wrapper p {
    font-size: var(--text-lg);
}

.article-wrapper h2,
.article-wrapper h3 {
    margin-top: var(--space-6);
    margin-bottom: var(--space-2);
}

.section-divider {
    width: 72px;
    height: 1px;
    margin-block: var(--space-6);
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    margin: 0 var(--space-1) var(--space-1) 0;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    border: 1px solid rgba(148, 163, 184, 0.5);
}

.footer {
    margin-top: auto;
    padding-block: var(--space-12);
    border-top: 1px solid rgba(148, 163, 184, 0.35);
    background:
        radial-gradient(circle at 100% 0%, rgba(56, 189, 248, 0.18), transparent 60%),
        #020617;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-brand p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.footer h6 {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #e5e7eb;
    margin-bottom: var(--space-3);
}

.footer ul {
    list-style: none;
}

.footer ul li + li {
    margin-top: var(--space-1);
}

.footer ul a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.footer ul a:hover {
    color: var(--color-primary);
}

.footer-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.footer-bottom {
    margin-top: var(--space-8);
    padding-top: var(--space-4);
    border-top: 1px solid rgba(148, 163, 184, 0.35);
    text-align: center;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.back-to-top {
    position: fixed;
    right: var(--space-4);
    bottom: var(--space-4);
    width: 46px;
    height: 46px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(148, 163, 184, 0.6);
    background:
        radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.4), transparent 60%),
        rgba(15, 23, 42, 0.98);
    color: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 30;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    box-shadow: var(--shadow-md);
}

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

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media print {
    .header,
    .footer,
    .back-to-top,
    .hero-full,
    .category-strip {
        display: none !important;
    }
    body {
        background: #ffffff;
        color: #020617;
    }
}