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

/* ── TOKENS: MODO CLARO (por defecto) ───────────────────────────── */
:root,
[data-theme="light"] {
    /* Azules */
    --blue-50: #E6F1FB;
    --blue-100: #B5D4F4;
    --blue-200: #85B7EB;
    --blue-400: #378ADD;
    --blue-600: #185FA5;
    --blue-800: #0C447C;
    --blue-900: #042C53;

    /* Grises */
    --gray-50: #F8F9FA;
    --gray-100: #F1EFE8;
    --gray-200: #D3D1C7;
    --gray-400: #888780;
    --gray-600: #5F5E5A;
    --gray-900: #1A1A1A;

    /* Superficies */
    --surface-bg: #F8F9FA;
    --surface-alt: #FFFFFF;
    --surface-card: #FFFFFF;
    --surface-card-alt: #F8F9FA;
    --surface-info: #E6F1FB;
    --surface-nav: rgba(255, 255, 255, 0.88);

    /* Textos */
    --text-primary: #1A1A1A;
    --text-secondary: #5F5E5A;
    --text-muted: #888780;

    /* Bordes */
    --border-default: rgba(55, 138, 221, 0.12);
    --border-card: rgba(55, 138, 221, 0.1);
    --border-subtle: #F1EFE8;
    --border-nav: rgba(55, 138, 221, 0.1);

    /* Tags */
    --tag-bg: #E6F1FB;
    --tag-color: #0C447C;
    --tag-border: #B5D4F4;
    --tag-gray-bg: #F1EFE8;
    --tag-gray-color: #5F5E5A;
    --tag-gray-border: #D3D1C7;

    /* Scroll */
    --scrollbar-track: #F8F9FA;
    --scrollbar-thumb: #85B7EB;
    --scrollbar-hover: #378ADD;

    /* Transición */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── TOKENS: MODO OSCURO ─────────────────────────────────────────── */
[data-theme="dark"] {
    /* Azules */
    --blue-50: #0D1F33;
    --blue-100: #112840;
    --blue-200: #1A3F63;
    --blue-400: #378ADD;
    --blue-600: #5BA4E8;
    --blue-800: #93C4F2;
    --blue-900: #C3DEFA;

    /* Grises */
    --gray-50: #111214;
    --gray-100: #1C1E21;
    --gray-200: #2A2D31;
    --gray-400: #6B6F75;
    --gray-600: #9DA3AC;
    --gray-900: #F0F2F5;

    /* Superficies */
    --surface-bg: #111214;
    --surface-alt: #1C1E21;
    --surface-card: #1C1E21;
    --surface-card-alt: #252830;
    --surface-info: #0D1F33;
    --surface-nav: rgba(17, 18, 20, 0.92);

    /* Textos */
    --text-primary: #F0F2F5;
    --text-secondary: #9DA3AC;
    --text-muted: #6B6F75;

    /* Bordes */
    --border-default: rgba(55, 138, 221, 0.18);
    --border-card: rgba(55, 138, 221, 0.15);
    --border-subtle: #2A2D31;
    --border-nav: rgba(55, 138, 221, 0.12);

    /* Tags */
    --tag-bg: #0D1F33;
    --tag-color: #93C4F2;
    --tag-border: #1A3F63;
    --tag-gray-bg: #1C1E21;
    --tag-gray-color: #9DA3AC;
    --tag-gray-border: #2A2D31;

    /* Scroll */
    --scrollbar-track: #111214;
    --scrollbar-thumb: #1A3F63;
    --scrollbar-hover: #378ADD;
}

/* ── TIPOGRAFÍAS ─────────────────────────────────────────────────── */
:root {
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ── BASE ────────────────────────────────────────────────────────── */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--surface-bg);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ── SCROLLBAR ───────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-hover);
}


/* ═══════════════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════════════ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 2rem 80px;
    max-width: 1100px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(0.85);
    }
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.hero-name span {
    background: linear-gradient(135deg, var(--blue-400), var(--blue-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    font-weight: 500;
    color: var(--blue-600);
    margin-bottom: 1.5rem;
    letter-spacing: -0.3px;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 540px;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.hero-desc strong {
    color: var(--text-primary);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--blue-600);
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--blue-800);
    transform: translateY(-1px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--blue-600);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 1.5px solid var(--border-default);
}

.btn-secondary:hover {
    background: var(--blue-50);
    border-color: var(--blue-400);
}

.country {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: .3s ease;
}

.country:hover .flag-icon {
    transform: rotate(-4deg) scale(1.12);
}

.flag-icon {
    width: 20px;
    height: auto;
    border-radius: 3px;
    vertical-align: middle;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .08);
    transition: .3s ease;
}


/* ── HERO VISUAL ─────────────────────────────────────────────────── */
.hero-visual {
    width: 300px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

/* Avatar circular */
.avatar-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 0.25rem;
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--blue-100);
    box-shadow: 0 0 0 5px var(--surface-bg);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.avatar-placeholder span {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: white;
    letter-spacing: -1px;
    user-select: none;
}

/* Cuando tengas tu foto, usa esta clase en un <img> */
.avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--blue-100);
    box-shadow: 0 0 0 5px var(--surface-bg);
    display: block;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.stat-card {
    background: var(--surface-card);
    border: 2px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--blue-400);
    transform: translateY(-2px);
}

.stat-card--accent {
    border-left: 3px solid var(--blue-400);
}

.stat-card--blue {
    background: var(--blue-600);
    border-color: transparent;
}

.stat-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--blue-600);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-num--white {
    color: #fff;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-label--white {
    color: rgba(255, 255, 255, 0.65);
}

.stat-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ═══════════════════════════════════════════════════════════════════
   SECCIONES
═══════════════════════════════════════════════════════════════════ */
section {
    padding: 90px 2rem;
    background: var(--surface-bg);
    transition: background-color 0.3s ease;
}

.section-alt {
    background: var(--surface-alt);
}

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.section-eyebrow {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue-400);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.15;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 3.5rem;
    line-height: 1.8;
}

.divider {
    width: 40px;
    height: 3px;
    background: var(--blue-400);
    border-radius: 100px;
    margin-bottom: 2.5rem;
}

/* ═══════════════════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════════════════ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.85;
}

.about-text strong {
    color: var(--text-primary);
}

.about-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.info-card {
    background: var(--surface-card-alt);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.info-card h4 {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.info-card p,
.info-card li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    margin-bottom: 0.3rem;
}

.info-card li::before {
    content: '→ ';
    color: var(--blue-400);
    font-weight: 600;
}

.edu-item {
    border-left: 2px solid var(--tag-border);
    padding-left: 1rem;
    margin-bottom: 1rem;
}

.edu-item:last-child {
    margin-bottom: 0;
}

.edu-degree {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.edu-school {
    font-size: 0.83rem;
    color: var(--blue-400);
    font-weight: 500;
    margin-bottom: 2px;
}

.edu-date {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════════════════════════════ */
.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.skill-group {
    background: var(--surface-card);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.skill-group:hover {
    border-color: var(--blue-400);
    transform: translateY(-2px);
}

.skill-group-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--blue-400);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--tag-bg);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    position: relative;
    background: var(--tag-bg);
    color: var(--tag-color);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 5px 12px;
    border-radius: 100px;
    border: 1px solid var(--tag-border);
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.tag::after {
    content: attr(data-description);
    position: absolute;
    left: 50%;
    bottom: 130%;
    transform: translateX(-50%);
    width: 220px;
    background: var(--surface-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: .8rem;
    font-size: .75rem;
    line-height: 1.5;
    opacity: 0;
    visibility: hidden;
    transition: .2s;
    z-index: 20;
    pointer-events: none;
}

.tag:hover::after {
    opacity: 1;
    visibility: visible;
}

.tag--gray {
    background: var(--tag-gray-bg);
    color: var(--tag-gray-color);
    border-color: var(--tag-gray-border);
}

/* ═══════════════════════════════════════════════════════════════════
   CERTIFICATES
═══════════════════════════════════════════════════════════════════ */


/* ═══════════════════════════════════════════════════════════════════
   CODING
═══════════════════════════════════════════════════════════════════ */
.coding-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.coding-card {
    background: var(--surface-card);
    border: 2px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: 1.6rem;
    text-decoration: none;
    color: inherit;
    transition: .25s;
}

.coding-card:hover {
    transform: translateY(-5px);
    border-color: var(--blue-400);
}

.coding-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.coding-header img {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.coding-header h3 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.coding-header p {
    color: var(--text-muted);
    font-size: .85rem;
}

.coding-desc {
    color: var(--text-secondary);
    font-size: .9rem;
    line-height: 1.6;
    margin-bottom: 1.4rem;
}

.coding-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    border-top: 1px solid var(--border-subtle);
    padding-top: 1rem;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--blue-400);
}

.stat-name {
    font-size: .75rem;
    color: var(--text-muted);
}


/* ═══════════════════════════════════════════════════════════════════
   CONTACT / SOCIAL
═══════════════════════════════════════════════════════════════════ */
.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 3rem;
}

.social-card {
    background: var(--surface-card);
    border: 2px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    color: inherit;
}

.social-card:hover {
    border-color: var(--blue-400);
    transform: translateY(-2px);
    background: var(--surface-info);
}

.social-card--static {
    cursor: default;
}

.social-card--static:hover {
    transform: none;
}

.social-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.social-icon--linkedin {
    background: #E8F0FB;
    color: #0A66C2;
}

[data-theme="dark"] .social-icon--linkedin {
    background: #0A2040;
    color: #5BA4E8;
}

.social-icon--github {
    background: #F0EFF4;
    color: #24292F;
}

[data-theme="dark"] .social-icon--github {
    background: #1C1E21;
    color: #9DA3AC;
}

.social-icon--duolingo {
    background: #EFFDED;
    color: #58CC02;
}

[data-theme="dark"] .social-icon--duolingo {
    background: #0F2A0F;
    color: #58CC02;
}

.social-info {
    flex: 1;
}

.social-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.social-handle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.social-arrow {
    color: var(--border-default);
    font-size: 1rem;
    transition: var(--transition);
}

.social-card:hover .social-arrow {
    color: var(--blue-400);
    transform: translateX(3px);
}

/* ═══════════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════════ */

footer {
    background: var(--blue-900);
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 2rem;
}

[data-theme="dark"] footer {
    background: #0A0B0D;
    border-top: 1px solid var(--border-subtle);
}

.footer-text {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: .9em;
    color: rgba(255, 255, 255, .45);
}

.footer-item {
    display: flex;
    align-items: center;
    gap: .4rem;
    transition: .3s ease;
}

.footer-item:hover {
    color: rgba(255, 255, 255, .85);
    transform: translateY(-2px);
}

.footer-item span {
    color: rgba(255, 255, 255, .85);
}

.footer-separator {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--blue-400);
    opacity: .5;
    animation: pulse-separator 2.5s infinite;
}

@keyframes pulse-separator {

    0%,
    100% {
        transform: scale(1);
        opacity: .4;
    }

    50% {
        transform: scale(1.6);
        opacity: 1;
    }
}


/* ═══════════════════════════════════════════════════════════════════
   ANIMACIONES
═══════════════════════════════════════════════════════════════════ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .hero {
        display: grid;
        grid-template-areas:
            "image"
            "content"
            "stats";
        gap: 2rem;
    }

    .hero-content {
        grid-area: content;
        text-align: center;
    }

    .hero-stats {
        grid-area: stats;
    }

    .hero-desc {
        max-width: 100%;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        display: contents;
    }

    .avatar-wrapper {
        grid-area: image;
    }

    .avatar-img {
        width: 180px;
        height: 180px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    section {
        padding: 60px 1.5rem;
    }
}

@media (max-width: 480px) {
    .stat-row {
        grid-template-columns: 1fr;
    }

    .hero-name {
        letter-spacing: -1px;
    }

    .social-grid {
        grid-template-columns: 1fr;
    }
}