:root {
    --bg-color: var(--bg-primary, #0f172a);
    --text-color: var(--text-primary, #f8fafc);
    --accent-color: var(--accent-primary, #3b82f6);
    --accent-color-alt: var(--accent-secondary, #8b5cf6);
    --card-bg: var(--bg-secondary, #1e293b);
    --border-color: rgba(148, 163, 184, 0.2);
    --surface-soft: rgba(15, 23, 42, 0.55);
    --surface-elevated: rgba(30, 41, 59, 0.72);
    --surface-hover: rgba(30, 41, 59, 0.88);
    --button-text: var(--text-primary, #f8fafc);
    --button-glow: rgba(59, 130, 246, 0.65);
    --shadow-soft: var(--shadow-md, 0 12px 30px -16px rgba(2, 6, 23, 0.7));
    --shadow-elevated: var(--shadow-xl, 0 20px 34px -18px rgba(2, 6, 23, 0.85));
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
    height: 100%;
    overscroll-behavior-y: none;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-primary);
    line-height: 1.6;
    position: relative;
    z-index: 0;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    overscroll-behavior-y: none;
    touch-action: pan-y;
}

main {
    flex: 1 0 auto;
}

.floating-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--scene-height, 100%);
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background-color: var(--accent-color);
    color: var(--bg-color);
    padding: 0.75rem 1rem;
    border-radius: 10px;
    z-index: 2000;
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
}

.hp-field {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.section-cta {
    display: block;
    width: fit-content;
    margin: 2rem auto 0;
}

.text-center {
    text-align: center;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

h1,
h2,
h3 {
    font-family: var(--font-mono);
    color: var(--text-color);
}

h1 {
    font-size: clamp(2.1rem, 6vw, 3rem);
    color: var(--text-color);
}

h2 {
    font-size: clamp(1.8rem, 4.5vw, 2.5rem);
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--accent-color-alt);
    outline-offset: 3px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background:
        radial-gradient(135% 130% at 10% 0%, rgba(255, 255, 255, 0.26) 0%, rgba(255, 255, 255, 0) 50%),
        linear-gradient(130deg, var(--accent-color) 0%, var(--accent-color-alt) 54%, var(--accent-color) 100%);
    background-size: 100% 100%, 215% 215%;
    background-position: center, 0% 50%;
    color: var(--button-text) !important;
    box-shadow:
        0 12px 24px -14px var(--button-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
    padding: 0.82rem 1.5rem;
    border-radius: 11px;
    font-weight: bold;
    letter-spacing: 0.01em;
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        background-position 0.35s ease,
        border-color 0.2s ease;
}

.btn::after {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: 10px;
    background: linear-gradient(115deg, transparent 28%, rgba(255, 255, 255, 0.33) 50%, transparent 72%);
    transform: translateX(-145%);
    transition: transform 0.45s ease;
    pointer-events: none;
}

.btn:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.26);
    background-position: center, 94% 50%;
    box-shadow:
        0 18px 34px -16px var(--button-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn:hover::after {
    transform: translateX(145%);
}

.btn:active {
    transform: translateY(0);
    box-shadow:
        0 10px 20px -16px var(--button-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.24);
}

/* --- Navigation Bar --- */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    --nav-alpha: 0;
    --nav-blur: 0px;
    background-color: rgba(30, 41, 59, var(--nav-alpha));
    backdrop-filter: blur(var(--nav-blur));
    padding: 0.5rem 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(51, 65, 85, var(--nav-alpha));
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-bottom-color 0.3s ease;
    will-change: background-color, backdrop-filter;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.navbar .logo {
    display: inline-flex;
    align-items: center;
    border-radius: 10px;
    transition: transform 0.25s ease;
}

.navbar .logo img {
    height: 50px;
    width: auto;
    transition: transform 0.25s ease;
}

.navbar .logo:hover img,
.navbar .logo:focus-visible img {
    opacity: 0.92;
}

.navbar .logo:hover,
.navbar .logo:focus-visible {
    transform: translateY(-1px);
}

.navbar nav ul {
    display: flex;
    list-style: none;
}

.navbar nav ul li {
    margin-left: 1.5rem;
}

.navbar nav ul li a {
    font-weight: bold;
    transition: color 0.25s ease;
    color: var(--text-color);
    text-decoration: none;
    display: inline-block;
    position: relative;
}

.navbar nav ul li a:visited {
    color: var(--text-color);
}

.navbar nav ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.2em;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background-color: var(--accent-color-alt);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.25s ease;
}

.navbar nav ul li a:hover,
.navbar nav ul li a:focus-visible {
    color: var(--accent-color-alt);
}

.navbar nav ul li a:hover::after,
.navbar nav ul li a:focus-visible::after {
    transform: scaleX(1);
}

.navbar nav ul li a.active,
.navbar nav ul li a[aria-current="page"] {
    color: var(--text-color);
}

.navbar nav ul li a.active::after,
.navbar nav ul li a[aria-current="page"]::after {
    transform: scaleX(0);
}

.navbar.is-scrolled {
    --nav-alpha: 0.85;
    --nav-blur: 10px;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    width: 44px;
    height: 44px;
    border-radius: 10px;
    cursor: pointer;
}

.nav-toggle:hover {
    border-color: var(--accent-color-alt);
}

.meta-row {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.reading-time {
    color: var(--text-tertiary, #a0aec0);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    color: var(--accent-color-alt);
}

.empty-state {
    color: var(--text-tertiary, #a0aec0);
    text-align: center;
    padding: 1rem 0;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: clamp(4.5rem, 10vh, 7rem) 0;
    overflow: hidden;
}

.hero .subtitle {
    font-family: var(--font-mono);
    font-size: clamp(1.05rem, 3.4vw, 1.5rem);
    margin: 1rem 0 2rem;
    color: var(--text-color);
    min-height: 2.5rem;
}

.hero .subtitle::after {
    content: "|";
    display: inline-block;
    margin-left: 0.25rem;
    color: var(--accent-color-alt);
    animation: blink 1.05s steps(2, start) infinite;
}

.hero .subtitle.is-typo {
    color: #fca5a5;
}

.hero .subtitle.is-typo::after {
    color: #fca5a5;
}

@keyframes blink {

    0%,
    49% {
        opacity: 1;
    }

    50%,
    100% {
        opacity: 0;
    }
}

/* --- Animated Background --- */
.animated-bg .shape,
.floating-bg .shape {
    position: absolute;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.95), rgba(167, 139, 250, 0.92));
    animation-name: float-drift;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    z-index: 0;
    will-change: transform, opacity;
    filter: saturate(1.18);
    box-shadow: 0 0 24px rgba(96, 165, 250, 0.22);
    opacity: 0;
}

@keyframes float-drift {
    0% {
        transform: translate3d(0, 0, 0) rotate(0deg);
        opacity: 0;
    }

    8% {
        opacity: var(--shape-opacity, 0.24);
    }

    50% {
        transform: translate3d(var(--drift-x, 24px), calc(var(--travel, 1300px) * -0.45), 0) rotate(180deg);
    }

    88% {
        opacity: var(--shape-opacity, 0.24);
    }

    100% {
        transform: translate3d(calc(var(--drift-x, 24px) * 1.6), calc(var(--travel, 1300px) * -1), 0) rotate(360deg);
        opacity: 0;
    }
}

/* --- Secciones Generales --- */
.about,
.portfolio,
.blog,
.contact {
    padding: clamp(3.5rem, 7vw, 6rem) 0;
}

/* Alternancia invertida: claro/oscuro */
.about,
.blog {
    background-color: var(--card-bg);
}

.portfolio,
.contact {
    background-color: transparent;
}

/* --- About Section --- */
.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.about-image {
    display: flex;
    justify-content: center;
    align-self: center;
    margin-top: -2.4rem;
}

.about-image .profile-pic {
    width: 100%;
    max-width: 350px;
    height: auto;
    display: block;
    border-radius: 10px;
    border: 3px solid var(--border-color);
    object-fit: cover;
    object-position: center;
}

.about-highlights {
    margin: 1.25rem 0 1.75rem 1.25rem;
    color: var(--text-tertiary, #a0aec0);
}

.about-highlights li {
    margin: 0.5rem 0;
}

.about-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0 2rem;
}

.tech-stack {
    font-size: clamp(2rem, 4vw, 2.5rem);
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tech-stack i {
    transition: color 0.3s ease, transform 0.3s ease;
}

.tech-stack i:hover {
    color: var(--accent-color-alt);
    transform: scale(1.2);
}

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

.card {
    background-color: var(--bg-color);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    border-color: rgba(139, 92, 246, 0.42);
    box-shadow: var(--shadow-elevated);
}

.card img {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.card-cover-link {
    display: block;
}

.card-cover-link:focus-visible {
    outline: 3px solid var(--accent-color-alt);
    outline-offset: 4px;
    border-radius: 6px;
}

.card-title-link {
    color: inherit;
    text-decoration: none;
}

.card-title-link:hover {
    text-decoration: underline;
}

.card-title-link:focus-visible {
    outline: 3px solid var(--accent-color-alt);
    outline-offset: 4px;
    border-radius: 6px;
}

.card-content {
    padding: 1.5rem;
}

.tags {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.tags span {
    background-color: var(--card-bg);
    padding: 0.3rem 0.6rem;
    border-radius: 5px;
    font-size: 0.8rem;
    font-weight: bold;
}

.card-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(130deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.16));
    border: 1px solid rgba(139, 92, 246, 0.46);
    color: var(--text-color) !important;
    padding: 0.6rem 1.05rem;
    border-radius: 10px;
    font-weight: bold;
    box-shadow: 0 10px 22px -18px rgba(139, 92, 246, 0.54);
    transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    border-color: rgba(139, 92, 246, 0.66);
    background:
        linear-gradient(130deg, rgba(59, 130, 246, 0.34), rgba(139, 92, 246, 0.28));
    box-shadow: 0 16px 30px -20px rgba(139, 92, 246, 0.7);
}

/* --- Blog Section --- */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.blog-entry {
    display: grid;
    grid-template-columns: 150px 1fr 50px;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--bg-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    min-width: 0;
}

.blog-entry:hover {
    transform: translateY(-4px);
    border-color: rgba(59, 130, 246, 0.54);
    background-color: var(--bg-hover, #12203a);
    box-shadow: var(--shadow-elevated);
}

.blog-date {
    font-family: var(--font-mono);
    font-weight: bold;
    color: var(--accent-color-alt);
}

.blog-title {
    margin: 0;
}

.blog-title {
    text-align: left;
    min-width: 0;
}

.blog-title a {
    color: var(--text-color) !important;
    font-size: 1.2rem;
}

.blog-readmore {
    font-size: 1.5rem;
    text-align: right;
    transition: transform 0.3s ease;
}

.blog-readmore:hover {
    transform: translateX(5px);
}


/* --- Contact Section --- */
.contact form {
    display: flex;
    flex-direction: column;
    max-width: 600px;
    margin: 0 auto;
}

.contact input,
.contact textarea {
    background: rgba(15, 23, 42, 0.5);
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 82%, transparent);
    border: 1px solid rgba(71, 85, 105, 0.58);
    border: 1px solid color-mix(in srgb, var(--border-color, rgba(148, 163, 184, 0.2)) 85%, transparent);
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    font-size: 1rem;
    color: var(--text-color);
    font-family: var(--font-secondary);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.contact input:focus,
.contact textarea:focus {
    outline: none;
    border-color: var(--accent-color-alt);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.16);
    background: rgba(19, 30, 49, 0.66);
    background: color-mix(in srgb, var(--bg-hover, #243247) 88%, transparent);
}

.contact button {
    align-self: flex-start;
}

.form-status-message {
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    margin: 0 auto 1.5rem auto;
    max-width: 600px;
    border: 1px solid var(--border-color);
}

.form-status-message.is-success {
    background-color: rgba(74, 222, 128, 0.15);
    border-color: rgba(74, 222, 128, 0.35);
    color: var(--text-color);
}

.form-status-message.is-error {
    background-color: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--text-color);
}

.update-notification {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 1200;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 12px 30px -18px rgba(2, 6, 23, 0.9);
}

.update-notification p {
    margin: 0;
    color: var(--text-color);
}

.update-notification button {
    border: 1px solid rgba(139, 92, 246, 0.5);
    background: rgba(59, 130, 246, 0.3);
    color: var(--text-color);
    border-radius: 8px;
    padding: 0.45rem 0.75rem;
    cursor: pointer;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--card-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.navbar,
.site-footer {
    width: 100%;
}

.site-footer h3,
.site-footer h4 {
    font-family: var(--font-mono);
    color: var(--text-color);
    margin-bottom: 1rem;
}

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

.footer-about p {
    color: var(--text-tertiary, #a0aec0);
    margin: 0;
    line-height: 1.7;
}

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

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul a {
    color: var(--text-tertiary, #a0aec0);
    transition: color 0.25s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
}

.footer-links ul a:visited {
    color: var(--text-tertiary, #a0aec0);
}

.footer-links ul a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.2em;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background-color: var(--accent-color-alt);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.25s ease;
}

.footer-links ul a:hover,
.footer-links ul a:focus-visible {
    color: var(--accent-color-alt);
}

.footer-links ul a:hover::after,
.footer-links ul a:focus-visible::after {
    transform: scaleX(1);
}

.footer-links ul a.active,
.footer-links ul a[aria-current="page"] {
    color: var(--text-tertiary, #a0aec0);
}

.footer-links ul a.active::after,
.footer-links ul a[aria-current="page"]::after {
    transform: scaleX(0);
}

.site-footer .social-icons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0;
    margin: 0;
}

.site-footer .social-icons a {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    color: var(--text-tertiary, #a0aec0);
    transition: color 0.3s ease, transform 0.3s ease;
}

.site-footer .social-icons a i {
    font-size: 1.25rem;
    color: var(--text-color);
}

.site-footer .social-icons a:hover {
    color: var(--accent-color-alt);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    margin: 0;
    color: var(--text-tertiary, #a0aec0);
}

.back-to-top {
    font-size: 1.2rem;
    color: var(--accent-color);
    background-color: var(--card-bg);
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.back-to-top:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    transform: translateY(-4px);
}

/* --- Page Headers --- */
.page-section {
    padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.detail-header {
    max-width: 800px;
    margin: 2rem auto 1.5rem;
}

.detail-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    margin-bottom: 0.75rem;
    text-align: left;
}

.breadcrumbs {
    max-width: 800px;
    margin: 0 auto 1.5rem;
    color: var(--text-tertiary, #a0aec0);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.breadcrumbs a {
    color: var(--text-tertiary, #a0aec0);
    text-decoration: underline;
}

.breadcrumbs a:hover {
    color: var(--accent-color-alt);
}

.post-article {
    max-width: 800px;
    margin: 0 auto;
    padding: clamp(1.25rem, 2.6vw, 2rem);
    border-radius: 16px;
    border: 1px solid rgba(51, 65, 85, 0.9);
    background-color: rgba(15, 23, 42, 0.35);
}

.post-article .detail-header {
    max-width: none;
    margin: 0 0 1.25rem;
}

.post-article .markdown {
    max-width: none;
}

.post-cover {
    width: 100%;
    display: block;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 1.25rem;
    background-color: rgba(15, 23, 42, 0.4);
}

.project-description {
    margin: 0.2rem 0 0.25rem;
    color: var(--text-secondary, #cbd5e1);
    line-height: 1.7;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.project-links .btn-secondary {
    margin-top: 0;
}

.post-nav {
    max-width: 800px;
    margin: 2rem auto 1.5rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.related-posts {
    max-width: 800px;
    margin: 2.5rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.related-posts h2 {
    text-align: left;
    margin-bottom: 1.25rem;
    font-size: 2rem;
}

.related-posts ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.related-posts li {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: rgba(15, 23, 42, 0.35);
}

.related-posts li a {
    color: var(--text-color);
    font-weight: bold;
    display: block;
}

.related-posts li a:hover {
    color: var(--accent-color-alt);
}

.page-header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
    position: relative;
}

.page-header h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-tertiary, #a0aec0);
    max-width: 600px;
    margin: 0 auto;
}

.page-header::after {
    content: "";
    display: block;
    width: min(220px, 45vw);
    height: 2px;
    margin: 1.1rem auto 0;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0), rgba(59, 130, 246, 0.88), rgba(139, 92, 246, 0.82), rgba(139, 92, 246, 0));
}

.content-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.9rem;
    margin: 1.5rem auto 0;
    max-width: 700px;
}

.metric-item {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 0.9rem;
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 76%, transparent);
    box-shadow: var(--shadow-soft);
}

.metric-item strong {
    display: block;
    font-size: 1.25rem;
    margin-top: 0.15rem;
}

.metric-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary, #a0aec0);
    font-family: var(--font-mono);
}

/* --- Blog Page --- */
.blog-list-full {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.blog-entry-full {
    display: grid;
    grid-template-columns: minmax(170px, 230px) 1fr;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    background: color-mix(in srgb, var(--bg-secondary, #1e293b) 86%, transparent);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.blog-entry-full:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.48);
    box-shadow: var(--shadow-elevated);
}

.is-clickable {
    cursor: pointer;
}

.is-clickable:focus-visible {
    outline: 3px solid var(--accent-color-alt);
    outline-offset: 4px;
}

.blog-entry-cover {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.24), rgba(139, 92, 246, 0.16));
}

.blog-entry-cover--placeholder {
    background:
        radial-gradient(700px 180px at 15% 20%, rgba(139, 92, 246, 0.16), transparent 55%),
        radial-gradient(600px 220px at 80% 60%, rgba(59, 130, 246, 0.18), transparent 60%),
        rgba(15, 23, 42, 0.35);
}

.blog-entry-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-entry-body {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    min-width: 0;
}

.blog-entry-body .meta-row {
    margin-bottom: 0;
}

.blog-entry-full .blog-title a {
    font-size: clamp(1.3rem, 2.2vw, 1.85rem);
    line-height: 1.25;
    text-decoration: none;
}

.blog-entry-full .blog-title a:hover {
    text-decoration: underline;
}

.blog-entry-full .blog-title a:focus-visible {
    outline: none;
    text-decoration: underline;
}

.blog-entry-excerpt {
    color: var(--text-tertiary, #a0aec0);
    margin: 0.35rem 0 0;
    line-height: 1.8;
}

.blog-entry-excerpt p {
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-entry-full .tags {
    margin: 0.5rem 0 0;
}

.blog-entry-full .btn-secondary {
    margin-top: auto;
    align-self: flex-start;
}

/* --- Controls (Search/Filter) --- */
.page-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin: 0 auto 2.5rem;
}

.sticky-controls {
    position: sticky;
    top: 76px;
    z-index: 30;
    padding: 0.8rem;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.88);
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 88%, transparent);
    backdrop-filter: blur(8px);
}

.control-group {
    flex: 1 1 220px;
    min-width: 0;
}

.page-controls input,
.page-controls select,
.page-controls button {
    background: linear-gradient(160deg, rgba(15, 23, 42, 0.78), rgba(21, 33, 53, 0.72));
    background:
        linear-gradient(160deg, color-mix(in srgb, var(--bg-primary, #0f172a) 82%, transparent), color-mix(in srgb, var(--bg-hover, #243247) 72%, transparent));
    border: 1px solid rgba(71, 85, 105, 0.58);
    border: 1px solid color-mix(in srgb, var(--border-color, rgba(148, 163, 184, 0.2)) 85%, transparent);
    color: var(--text-color);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    box-shadow: 0 10px 24px -18px rgba(2, 6, 23, 0.9);
    width: 100%;
    min-width: 0;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.page-controls input:focus,
.page-controls select:focus,
.page-controls button:focus {
    outline: none;
    border-color: var(--accent-color-alt);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.16);
}

.page-controls .btn-secondary {
    flex: 0 0 auto;
    width: auto;
    margin: 0;
}

.results-summary {
    color: var(--text-tertiary, #a0aec0);
    text-align: center;
    margin: -1.1rem auto 1.2rem;
    min-height: 1.5rem;
}

.list-actions {
    margin-top: 1.4rem;
    display: flex;
    justify-content: center;
}

.filter-toggles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.7rem;
    margin: -0.75rem auto 1.5rem;
}

.toggle-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    background: color-mix(in srgb, var(--bg-secondary, #1e293b) 85%, transparent);
    color: var(--text-tertiary, #a0aec0);
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.toggle-chip:hover {
    color: var(--text-color);
    border-color: rgba(139, 92, 246, 0.66);
    transform: translateY(-1px);
}

.toggle-chip input {
    margin: 0;
}

.toggle-chip:has(input:checked) {
    color: var(--text-color);
    border-color: rgba(139, 92, 246, 0.74);
    background: color-mix(in srgb, var(--accent-secondary, #8b5cf6) 14%, transparent);
}

.toggle-chip input:checked + span {
    color: var(--text-color);
}

.empty-state-card {
    border: 1px dashed var(--border-color);
    border-radius: 14px;
    padding: 1.1rem;
    background: rgba(15, 23, 42, 0.86);
    background: color-mix(in srgb, var(--bg-primary, #0f172a) 86%, transparent);
}

.empty-state-card .btn-secondary {
    margin-top: 0.8rem;
}

.skeleton-card {
    pointer-events: none;
}

.blog-entry-full.skeleton-card,
.card.skeleton-card {
    height: auto;
}

.skeleton-line {
    height: 11px;
    border-radius: 999px;
}

.skeleton-line-title {
    height: 18px;
    width: 76%;
}

.card-image-skeleton {
    width: 100%;
    aspect-ratio: 16 / 9;
}

/* --- Markdown --- */
.markdown {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary, #d9e2ef);
    line-height: 1.9;
}

.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
    margin: 2rem 0 1rem;
    text-align: left;
}

.markdown h1 {
    font-size: clamp(1.9rem, 4vw, 2.4rem);
    line-height: 1.15;
}

.markdown h2 {
    font-size: clamp(1.55rem, 3vw, 2.05rem);
    line-height: 1.2;
}

.markdown h3 {
    font-size: clamp(1.25rem, 2.4vw, 1.6rem);
    line-height: 1.25;
}

.markdown h4 {
    font-size: 1.2rem;
    line-height: 1.25;
}

.markdown a {
    overflow-wrap: anywhere;
    text-decoration: underline;
}

.markdown code {
    overflow-wrap: anywhere;
}

.markdown p {
    margin: 1rem 0;
}

.markdown ul {
    margin: 1rem 0 1rem 1.5rem;
}

.markdown li {
    margin: 0.4rem 0;
}

.markdown blockquote {
    border-left: 3px solid var(--accent-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--text-tertiary, #a0aec0);
}

.markdown .md-code,
.markdown pre {
    background-color: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    overflow: auto;
}

.markdown code {
    font-family: var(--font-mono);
    font-size: 0.95em;
}

.markdown .md-image,
.markdown img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.25rem auto;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background-color: rgba(15, 23, 42, 0.35);
}

.markdown hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .about-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 780px) {
    .navbar .container {
        gap: 1rem;
    }

    .nav-toggle {
        display: inline-grid;
        place-items: center;
        margin-left: auto;
        order: 2;
    }

    .navbar nav {
        width: auto;
        order: 1;
    }

    #nav-menu {
        display: none;
        flex-direction: column;
        gap: 0.5rem;
        background-color: rgba(30, 41, 59, 0.95);
        padding: 1rem;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        position: absolute;
        left: auto;
        right: 1rem;
        top: 70px;
        width: min(360px, calc(100% - 2rem));
        text-align: right;
    }

    #nav-menu.is-open {
        display: flex;
    }

    #nav-menu a {
        display: block;
        padding: 0.45rem 0.35rem;
        text-align: right;
    }

    .navbar nav ul li {
        margin: 0;
    }
}

@media (max-width: 700px) {
    .blog-list-full {
        grid-template-columns: 1fr;
    }

    .blog-entry-full {
        grid-template-columns: 1fr;
    }

    .blog-entry-cover {
        aspect-ratio: 16 / 9;
    }

    .content-metrics {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .blog-entry {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .blog-readmore {
        text-align: left;
    }

    .page-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .sticky-controls {
        top: 68px;
        padding: 0.75rem;
    }

    .control-group {
        width: 100%;
        flex-basis: auto;
    }

    .page-controls input,
    .page-controls select,
    .page-controls button {
        width: 100%;
    }

    .page-controls .btn-secondary {
        width: 100%;
    }

    .filter-toggles {
        justify-content: flex-start;
    }

    .about-highlights {
        margin-left: 0;
    }

    .about-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .about-actions .btn,
    .about-actions .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .card-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .card-buttons .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .section-cta {
        width: 100%;
        text-align: center;
    }

    .contact button {
        align-self: stretch;
        text-align: center;
    }

    .tech-stack {
        justify-content: center;
        gap: 1rem;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-bottom p {
        text-align: center;
    }
}

@media (max-width: 520px) {
    .navbar .logo img {
        height: 42px;
    }

    #nav-menu {
        top: 64px;
    }

    .card-content {
        padding: 1.25rem;
    }

    .blog-entry {
        padding: 1.25rem;
    }

    .blog-entry-full {
        padding: 1rem;
    }

    .content-metrics {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .animated-bg .shape,
    .floating-bg .shape {
        animation: none;
    }

    .hero .subtitle::after {
        animation: none;
    }

    .btn,
    .btn::after,
    .card,
    .blog-entry,
    .blog-entry-full,
    .back-to-top,
    .tech-stack i {
        transition: none;
    }
}