/* ============================================
   VARIABLES
============================================ */
:root {
    --bg: #ffffff;
    --bg-alt: #f7f7f5;
    --text: #111111;
    --text-muted: #777;
    --accent: #2563EB; /* fallback; sobreescrito por JS */
    --border: #e8e8e8;
    --bg-inverse: #111111;
    --font-body: 'Open Sans', sans-serif;
    --font-head: 'Poppins', sans-serif;
}

[data-theme="dark"] {
    --bg: #0f0f0f;
    --bg-alt: #1a1a1a;
    --text: #e8e8e8;
    --text-muted: #999;
    --accent: #4B8BFF; /* fallback; sobreescrito por JS */
    --border: #2a2a2a;
    --bg-inverse: #080808;
}

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

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color 0.2s; }

img { max-width: 100%; display: block; }

/* ============================================
   HEADER
============================================ */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 0;
    transition: background 0.3s, padding 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    background: var(--bg);
    opacity: 0.98;
    backdrop-filter: blur(12px);
    padding: 14px 0;
    border-color: var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 2px;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 5px;
    font-size: 0.72rem;
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.05em;
    transition: color 0.2s;
    line-height: 1;
}

.lang-btn:hover { color: var(--accent); }
.lang-btn.active { color: var(--accent); }

.lang-sep {
    color: var(--border);
    font-size: 0.7rem;
    line-height: 1;
    pointer-events: none;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    padding: 4px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}
.theme-toggle:hover { color: var(--accent); }

.color-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
}
.color-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0;
    transition: transform 0.15s, border-color 0.15s;
}
.color-dot:hover { transform: scale(1.2); }
.color-dot.active { border-color: var(--text); transform: scale(1.15); }

.logo {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-head);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 7px;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.site-nav a {
    margin-left: 32px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

.site-nav a:hover { color: var(--text); }
.site-nav a.nav-active { color: var(--accent); font-weight: 600; }

.nav-toggle {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   SECCIONES — base
============================================ */
.section { padding: 100px 0; }

.section-header { margin-bottom: 60px; }

.section-header h2 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.section-line {
    width: 48px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
    margin-bottom: 20px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 560px;
}

/* ============================================
   HERO
============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}



.eyebrow {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero-copy h1 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-text {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.75;
    max-width: 460px;
    margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.btn-primary-custom {
    background: var(--accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: opacity 0.2s;
}
.btn-primary-custom:hover { opacity: 0.85; color: #fff; }

.btn-secondary-custom {
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.2s;
}
.btn-secondary-custom:hover { border-color: var(--accent); color: var(--accent); }

.hero-social {
    list-style: none;
    display: flex;
    gap: 16px;
    padding: 0;
}
.hero-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: all 0.2s;
}
.hero-social a:hover { border-color: var(--accent); color: var(--accent); }

.hero-image {
    display: flex;
    justify-content: center;
    padding-top: 40px;
}
.hero-image img {
    width: 100%;
    max-width: 460px;
    height: 520px;
    object-fit: cover;
    object-position: center top;
    border-radius: 12px;
}

/* ============================================
   EN NÚMEROS
============================================ */
.numbers-section {
    background: var(--bg-inverse);
    padding: 80px 0;
}

.numbers-header {
    margin-bottom: 48px;
}
.numbers-header h2 {
    font-family: var(--font-head);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}
.numbers-header .section-line {
    background: var(--accent);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.number-item {
    padding: 40px 32px;
    border-right: 1px solid rgba(255,255,255,0.08);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.number-item:nth-child(4n) { border-right: none; }

.number-value {
    font-family: var(--font-head);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 700;
    color: #fff;
    line-height: 1;
    letter-spacing: -0.02em;
}

.number-value small {
    font-size: 0.5em;
    font-weight: 400;
    opacity: 0.7;
    margin-left: 2px;
}

.number-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.number-label a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.number-label a:hover { border-color: currentColor; }
.number-label a[href*="vueling"] { color: #FFD700; }
.number-label a[href*="vueling"]:hover { border-color: #FFD700; }

@media (max-width: 992px) {
    .numbers-grid { grid-template-columns: repeat(3, 1fr); }
    .number-item:nth-child(4n) { border-right: 1px solid rgba(255,255,255,0.08); }
    .number-item:nth-child(3n) { border-right: none; }
}

@media (max-width: 600px) {
    .numbers-grid { grid-template-columns: repeat(2, 1fr); }
    .number-item:nth-child(3n) { border-right: 1px solid rgba(255,255,255,0.08); }
    .number-item:nth-child(2n) { border-right: none; }
    .number-item { padding: 28px 20px; }
}

/* ============================================
   SOBRE MÍ
============================================ */
.about-section { background: var(--bg-alt); border-top: 1px solid var(--border); }

.about-text {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.info-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.info-list li {
    display: flex;
    gap: 16px;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 14px;
}
.info-label {
    color: var(--text-muted);
    min-width: 110px;
    font-weight: 500;
}
.info-value a:hover { color: var(--accent); }

/* ============================================
   TECNOLOGÍA
============================================ */
.tech-card {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 28px;
    height: 100%;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    position: relative;
}
.tech-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.tech-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.tech-card-hint {
    position: absolute;
    top: 16px;
    right: 16px;
    color: var(--text-muted);
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.2s;
}
.tech-card:hover .tech-card-hint { opacity: 1; }
.tech-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 20px;
    display: block;
}
.tech-card h3 {
    font-family: var(--font-head);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.tech-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }

/* Tech Modal */
.tech-modal-content {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
}
.tech-modal-header {
    padding: 28px 28px 20px;
}
.tech-modal-icon {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
}
.tech-modal-period {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.tech-modal-body {
    padding: 0 28px 28px;
}
.tech-modal-intro {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 20px;
}
.tech-modal-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.tech-modal-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text);
}
.tech-modal-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    margin-top: 7px;
    flex-shrink: 0;
}
.tech-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tech-modal-tag {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* ============================================
   PILARES
============================================ */
.pilares-section { background: var(--bg-alt); border-top: 1px solid var(--border); }

.pilar-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color 0.2s;
}
.pilar-card:hover { border-color: var(--accent); }

.pilar-icon {
    font-size: 2.2rem;
    color: var(--accent);
    display: block;
    margin-bottom: 20px;
}
a.pilar-card-link {
    display: block;
    color: inherit;
    cursor: pointer;
}
a.pilar-card-link:hover {
    border-color: var(--accent);
    color: inherit;
}

.pilar-card h4 {
    font-family: var(--font-head);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.pilar-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }

/* ============================================
   LUGARES
============================================ */
.lugares-section {
    background: var(--bg);
}

.places-map {
    width: 100%;
    height: 480px;
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    z-index: 1;
}

.place-marker {
    width: 12px;
    height: 12px;
    background: var(--accent);
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

[data-theme="dark"] .place-marker {
    border-color: #333;
}

@media (max-width: 768px) {
    .places-map { height: 360px; }
}

/* ============================================
   FAMILIA / MOMENTOS
============================================ */
.familia-section {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
}

.familia-item {
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}
.familia-item img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    border-radius: 8px;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: grayscale(20%);
}
.familia-item:hover img {
    transform: scale(1.04);
    filter: grayscale(0%);
}

/* Paginación galería */
.gallery-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 32px;
}

.gallery-page-btn {
    background: none;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-family: var(--font-body);
}

.gallery-page-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.gallery-page-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.gallery-page-btn:disabled {
    opacity: 0.3;
    cursor: default;
}

/* ============================================
   LIGHTBOX
============================================ */
.lightbox-modal .modal-backdrop,
.lightbox-modal { }

.lightbox-dialog {
    max-width: 90vw;
    width: auto;
    margin: 0 auto;
}

.lightbox-content {
    background: #0a0a0a;
    border: none;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    align-items: center;
}

.lightbox-content #lightboxImg {
    display: block;
    max-width: 100%;
    max-height: 80vh;
    width: auto;
    height: auto;
    margin: 0 auto;
}

.lightbox-caption {
    color: #ccc;
    font-size: 0.875rem;
    text-align: center;
    padding: 14px 48px;
    line-height: 1.5;
    min-height: 48px;
}

.lightbox-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    background: rgba(0,0,0,0.5);
    border: none;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 1rem;
}
.lightbox-close:hover { background: rgba(255,255,255,0.15); }

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0,0,0,0.4);
    border: none;
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 1.1rem;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.15); }
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }

/* ============================================
   MIS RETOS — OPCIÓN A (BUCKET LIST)
============================================ */
.retos-section { background: var(--bg-alt); border-top: 1px solid var(--border); }
.strava-link { color: #FC4C02; text-decoration: underline; text-underline-offset: 3px; }
.strava-link:hover { color: #e04000; }

.section-tag {
    font-size: 0.7rem;
    font-weight: 600;
    background: var(--accent);
    color: #fff;
    padding: 3px 10px;
    border-radius: 20px;
    vertical-align: middle;
    margin-left: 10px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.retos-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.reto-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}
.reto-item:last-child { border-bottom: none; }
.reto-item:hover { background: var(--bg-alt); }

.reto-status { font-size: 1.3rem; flex-shrink: 0; }
.reto-item.achieved .reto-status { color: #22c55e; }
.reto-item.pending .reto-status { color: #ccc; }

.reto-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
}
.reto-name { font-weight: 600; font-size: 1rem; }
.reto-meta { font-size: 0.82rem; color: var(--text-muted); }

.reto-badge {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 20px;
    flex-shrink: 0;
}
.reto-badge.achieved { background: rgba(34,197,94,0.1); color: #22c55e; }
.reto-badge.pending { background: rgba(0,0,0,0.05); color: var(--text-muted); }

/* ============================================
   MIS RETOS — OPCIÓN B (LÍNEA DE TIEMPO)
============================================ */
.retos-timeline-section { background: var(--bg-alt); border-top: 1px solid var(--border); }

.timeline {
    position: relative;
    padding-left: 40px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding: 0 0 40px 36px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 2px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    border: 2px solid var(--border);
    background: var(--bg-alt);
    z-index: 1;
}
.timeline-item.achieved .timeline-dot {
    background: #22c55e;
    border-color: #22c55e;
    color: #fff;
}
.timeline-item.pending .timeline-dot {
    background: var(--bg-alt);
    border-color: #ccc;
    color: #ccc;
}

.timeline-year {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: 4px;
}
.timeline-content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

@media (max-width: 600px) {
    .reto-item { padding: 16px 20px; }
    .reto-badge { display: none; }
}

/* ============================================
   FOOTER
============================================ */
.site-footer {
    background: var(--bg-inverse);
    border-top: none;
    padding: 80px 0 40px;
}
.site-footer h3 {
    font-family: var(--font-head);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}
.site-footer > .container > p {
    color: rgba(255,255,255,0.5);
    font-size: 1rem;
    margin-bottom: 24px;
}
.footer-email {
    display: inline-block;
    color: var(--accent);
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: 28px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.footer-email:hover { border-color: var(--accent); color: var(--accent); }

.footer-social {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px; height: 44px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.5);
    transition: all 0.2s;
}
.footer-social a:hover { border-color: var(--accent); color: var(--accent); }

.footer-note { color: rgba(255,255,255,0.3); font-size: 0.85rem; }
.arch-link { color: rgba(255,255,255,0.5); border-bottom: 1px solid transparent; transition: all 0.2s; }
.arch-link:hover { color: #fff; border-color: #fff; }
.arch-link { color: var(--accent); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.arch-link:hover { color: var(--accent); border-color: var(--accent); }
.modal-content { border-radius: 12px; background: var(--bg); color: var(--text); }
.modal-header { border-bottom: 1px solid var(--border); }
.modal-title { font-family: var(--font-head); font-weight: 600; }

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 768px) {
    .site-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        border-top: 1px solid var(--border);
        box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        padding: 16px 24px;
        gap: 0;
    }
    .site-nav.open {
        display: flex;
    }
    .site-nav a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border);
        font-size: 1rem;
    }
    .site-nav a:last-child { border-bottom: none; }
    .hero-image { padding-top: 48px; padding-bottom: 60px; }
    .hero-image img { height: auto; max-width: 100%; border-radius: 12px; }
    .section { padding: 72px 0; }
    .hero-actions { flex-direction: column; }
    .btn-primary-custom, .btn-secondary-custom { text-align: center; width: 100%; }
}

/* ============================================
   BLOG
============================================ */
.blog-main {
    padding-top: 120px;
    padding-bottom: 80px;
    min-height: 70vh;
}
.blog-header {
    margin-bottom: 48px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.blog-title {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 8px;
}
.blog-subtitle { color: var(--text-muted); font-size: 1.05rem; margin: 0; }

.blog-list { display: flex; flex-direction: column; gap: 0; }
.blog-card { padding: 32px 0; border-bottom: 1px solid var(--border); }
.blog-card:last-child { border-bottom: none; }

.blog-card-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.blog-card-date { font-size: 0.82rem; color: var(--text-muted); font-weight: 500; letter-spacing: 0.02em; }
.blog-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.blog-tag {
    font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--accent); background: transparent; border: 1px solid var(--accent);
    padding: 2px 8px; border-radius: 20px;
}

.blog-ai-badge {
    font-size: 0.7rem; font-weight: 600; letter-spacing: 0.05em;
    color: var(--text-muted); background: var(--bg-alt); border: 1px solid var(--border);
    padding: 2px 8px; border-radius: 20px;
}

.blog-card-title { font-family: var(--font-head); font-size: 1.4rem; font-weight: 700; line-height: 1.25; margin-bottom: 10px; }
.blog-card-title a { color: var(--text); transition: color 0.2s; }
.blog-card-title a:hover { color: var(--accent); }

.blog-card-excerpt { color: var(--text-muted); font-size: 0.95rem; line-height: 1.65; margin-bottom: 16px; max-width: 680px; }

.blog-read-more {
    font-size: 0.88rem; font-weight: 600; color: var(--accent);
    display: inline-flex; align-items: center; gap: 6px; transition: gap 0.2s;
}
.blog-read-more:hover { gap: 10px; color: var(--accent); }
.blog-read-more i { font-size: 0.8rem; }

.blog-loading, .blog-error, .blog-empty { text-align: center; padding: 80px 0; color: var(--text-muted); }
.blog-loading i { margin-right: 8px; }

.blog-post-nav { margin-bottom: 32px; }
.blog-back {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.88rem; font-weight: 600; color: var(--text-muted); transition: color 0.2s, gap 0.2s;
}
.blog-back:hover { color: var(--accent); gap: 10px; }
.blog-back i { font-size: 0.8rem; }

.blog-post-header { margin-bottom: 40px; padding-bottom: 28px; border-bottom: 1px solid var(--border); }
.blog-post-date { display: block; font-size: 0.82rem; color: var(--text-muted); font-weight: 500; margin-bottom: 10px; }
.blog-post-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.blog-post-title { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; line-height: 1.15; margin: 0; }

.blog-post-body { max-width: 700px; font-size: 1.05rem; line-height: 1.75; color: var(--text); }
.blog-post-body h1 { display: none; }
.blog-post-body h2 { font-family: var(--font-head); font-size: 1.4rem; font-weight: 700; margin: 40px 0 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.blog-post-body h3 { font-family: var(--font-head); font-size: 1.15rem; font-weight: 700; margin: 28px 0 12px; }
.blog-post-body p { margin-bottom: 20px; }
.blog-post-body ul, .blog-post-body ol { margin: 0 0 20px 24px; }
.blog-post-body li { margin-bottom: 6px; }
.blog-post-body strong { font-weight: 700; color: var(--text); }
.blog-post-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.blog-post-body a:hover { opacity: 0.8; }
.blog-post-body blockquote { border-left: 3px solid var(--accent); padding-left: 20px; margin: 24px 0; color: var(--text-muted); font-style: italic; }
.blog-post-body code { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 4px; padding: 2px 6px; font-size: 0.88em; font-family: 'Courier New', monospace; }
.blog-post-body pre { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 8px; padding: 20px; overflow-x: auto; margin-bottom: 20px; }
.blog-post-body pre code { background: none; border: none; padding: 0; font-size: 0.9rem; }
.blog-post-body img { max-width: 100%; border-radius: 8px; margin: 24px 0; }
.blog-post-body hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }

@media (max-width: 768px) {
    .blog-main { padding-top: 90px; padding-bottom: 48px; }
    .blog-card { padding: 24px 0; }
    .blog-card-title { font-size: 1.2rem; }
    .blog-post-body { font-size: 1rem; }
}