:root {
    /* Paleta Nueva del portfolio */
    --green-main: #10dd5f;
    --green-hover: #2bcf36;
    --green-light: rgba(16, 221, 95, 0.12);
    --green-glow: rgba(16, 221, 95, 0.25);
    --bg-body: #111111;
    --bg-section: #1e241e;
    --bg-alt: #161b16;
    --bg-card: #232923;
    --text-main: #f0efef;
    --text-muted: #aab0aa;
    --text-dark: #1a1f1a;
    --border: rgba(16, 221, 95, 0.15);
    --border-soft: rgba(255,255,255,0.07);
    --shadow-card: 0 4px 24px rgba(0,0,0,0.35);
    --shadow-hover: 0 8px 40px rgba(16, 221, 95, 0.18);
    --radius: 12px;
    --radius-sm: 6px;
    --font-display: 'Josefin Sans', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --nav-h: 60px;
    --max-w: 1140px;
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    background-image: url('fondo01.jpg');
    background-attachment: fixed;
    background-size: cover;
    color: var(--text-main);
    line-height: 1.65;
    overflow-x: hidden;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.6);
}

/* Overlay global sobre el fondo para garantizar legibilidad */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 10, 0.55);
    z-index: 0;
    pointer-events: none;
}

/* Todos los contenidos por encima del overlay */
body > * { position: relative; z-index: 1; }

/* ---- UTILIDADES ---- */
.accent { color: var(--green-main); }

.section-container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 2.5rem);
}

.section-tag {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--green-main);
    margin-bottom: 1.25rem;
    opacity: 0.85;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    margin-bottom: 2.75rem;
    line-height: 1.15;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

/* ---- ANIMACIONES ---- */
.fade-in {
    animation: fadeIn 0.9s ease both;
}
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.48s; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   NAVBAR
======================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(10, 14, 10, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 2.5rem);
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    user-select: none;
    cursor: default;
    text-shadow: none;
}
.nav-logo .dot { color: var(--green-main); }

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-links a {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(240,239,239,0.75);
    text-decoration: none;
    text-shadow: none;
    transition: color var(--transition);
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -3px; left: 0;
    width: 0; height: 1.5px;
    background: var(--green-main);
    transition: width var(--transition);
}
.nav-links a:hover { color: var(--text-main); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--green-main); }
.nav-links a.active::after { width: 100%; }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 24px; height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    display: none;
    flex-direction: column;
    background: rgba(10, 14, 10, 0.97);
    border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    color: rgba(240,239,239,0.8);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.9rem clamp(1.25rem, 5vw, 2.5rem);
    border-bottom: 1px solid var(--border-soft);
    transition: color var(--transition), background var(--transition);
    text-shadow: none;
}
.mobile-menu a:hover {
    color: var(--green-main);
    background: var(--green-light);
}

/* ========================================
   HERO
======================================== */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('header.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.28) saturate(1.3);
    z-index: 0;
}

/* Degradado verde sutil sobre la imagen del header */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% 60%, rgba(0, 255, 98, 0.441) 0%, transparent 70%),
        linear-gradient(to right, rgba(17, 146, 17, 0.5) 0%, transparent 80%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: calc(var(--nav-h) + 5rem) clamp(1.25rem, 5vw, 2.5rem) 5rem;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--green-main);
    background: var(--green-light);
    border: 1px solid rgba(16,221,95,0.3);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    text-shadow: none;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 9vw, 7rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    color: var(--text-main);
    text-shadow: 2px 2px 12px rgba(0,0,0,0.7);
    margin-bottom: 1.25rem;
}

.hero h3 {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 300;
    color: rgba(240,239,239,0.75);
    text-shadow: 1px 1px 4px rgba(0,0,0,0.6);
    margin-bottom: 2.5rem;
    letter-spacing: 0.04em;
}

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

.btn-primary {
    display: inline-block;
    padding: 0.85rem 2rem;
    background: var(--green-main);
    color: #0a0a0a;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    text-shadow: none;
    transition: var(--transition);
}
.btn-primary:hover {
    background: var(--green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--green-glow);
}

.btn-ghost {
    display: inline-block;
    padding: 0.85rem 2rem;
    border: 1.5px solid rgba(240,239,239,0.35);
    color: var(--text-main);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    text-shadow: none;
    transition: var(--transition);
}
.btn-ghost:hover {
    border-color: var(--green-main);
    color: var(--green-main);
    transform: translateY(-2px);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: clamp(1.25rem, 5vw, 2.5rem);
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(240,239,239,0.4);
    font-size: 0.68rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-shadow: none;
}
.scroll-bar {
    width: 36px; height: 1px;
    background: rgba(240,239,239,0.2);
    position: relative; overflow: hidden;
}
.scroll-bar::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: var(--green-main);
    animation: scroll-slide 2.2s infinite;
}
@keyframes scroll-slide {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ========================================
   SECCIONES GENERALES — fondo semitransparente
   para garantizar legibilidad sobre fondo01.jpg
======================================== */
.about-section,
.skills-section,
.edu-section,
.projects-section,
.contact-section {
    padding: clamp(4rem, 10vw, 7rem) 0;
}

/* Backdrop en secciones pares para dar ritmo visual */
.skills-section,
.contact-section {
    background: rgba(10, 14, 10, 0.45);
    backdrop-filter: blur(2px);
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

/* ========================================
   SOBRE MÍ
======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 3.5rem;
    align-items: start;
}

.about-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1.75rem;
}

.about-text p {
    font-size: 1rem;
    color: rgba(240,239,239,0.82);
    line-height: 1.78;
    margin-bottom: 0.9rem;
}
.about-text p strong { color: var(--text-main); font-weight: 600; }

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

.stat-card {
    background: rgba(20, 28, 20, 0.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
    backdrop-filter: blur(8px);
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.stat-card:hover {
    border-color: rgba(16, 221, 95, 0.4);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.accent-card { border-color: rgba(16, 221, 95, 0.3); }

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--green-main);
    line-height: 1;
    text-shadow: 0 0 16px rgba(16,221,95,0.3);
}
.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ========================================
   SKILLS
======================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1.25rem;
}

.skill-group {
    background: rgba(20, 28, 20, 0.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem;
    backdrop-filter: blur(8px);
    transition: border-color var(--transition), transform var(--transition);
}
.skill-group:hover {
    border-color: rgba(16,221,95,0.35);
    transform: translateY(-3px);
}

.skill-group h4 {
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green-main);
    margin-bottom: 1rem;
    text-shadow: none;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}
.skill-tags span {
    background: rgba(16,221,95,0.08);
    border: 1px solid rgba(16,221,95,0.2);
    color: rgba(240,239,239,0.78);
    font-size: 0.8rem;
    padding: 0.28rem 0.7rem;
    border-radius: 100px;
    text-shadow: none;
    transition: var(--transition);
}
.skill-tags span:hover {
    background: rgba(16,221,95,0.18);
    border-color: rgba(16,221,95,0.5);
    color: var(--green-main);
}

/* ========================================
   EDUCACIÓN — TIMELINE
======================================== */
.edu-timeline {
    position: relative;
    padding-left: 2rem;
}

/* Línea vertical */
.edu-timeline::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 7px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(to bottom, var(--green-main), rgba(16,221,95,0.1));
    border-radius: 2px;
}

.edu-item {
    position: relative;
    padding-bottom: 2.5rem;
    padding-left: 1.5rem;
}
.edu-item:last-child { padding-bottom: 0; }

.edu-dot {
    position: absolute;
    left: -1.5rem;
    top: 5px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--green-main);
    border: 2px solid var(--bg-body);
    box-shadow: 0 0 10px rgba(16,221,95,0.5);
    z-index: 1;
}

.edu-content {
    background: rgba(20, 28, 20, 0.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem 1.6rem;
    backdrop-filter: blur(8px);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.edu-content:hover {
    border-color: rgba(16,221,95,0.35);
    box-shadow: var(--shadow-hover);
}

.edu-year {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green-main);
    margin-bottom: 0.5rem;
    text-shadow: none;
}

.edu-content h4 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.edu-place {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(16,221,95,0.85);
    margin-bottom: 0.5rem !important;
    text-shadow: none;
}

.edu-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 !important;
}

/* ========================================
   PROYECTOS
======================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
    gap: 1.4rem;
}

.project-card {
    background: rgba(20, 28, 20, 0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
    border-color: rgba(16, 221, 95, 0.35);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-wide {
    grid-column: 1 / -1;
    max-width: 640px;
}

.project-img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background-color: rgba(24, 24, 24, 0.224); /* o el color que prefieras para los bordes */
}

.project-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.project-card:hover .project-img-wrap img { transform: scale(1.05); }

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 10, 0.78);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }

.overlay-btn {
    padding: 0.7rem 1.5rem;
    background: var(--green-main);
    color: #0a0a0a;
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    text-shadow: none;
    transition: background var(--transition);
}
.overlay-btn:hover { background: var(--green-hover); }

.project-info {
    padding: 1.2rem 1.4rem 1.4rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.project-tags span {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--green-main);
    background: var(--green-light);
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    text-shadow: none;
}

.project-info h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

.project-info p {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.55;
    flex: 1;
    text-shadow: none;
}

.project-link {
    display: inline-block;
    margin-top: 0.35rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--green-main);
    text-decoration: none;
    text-shadow: none;
    transition: color var(--transition);
}
.project-link:hover { color: var(--green-hover); }

/* ========================================
   CONTACTO
======================================== */
.contact-inner {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
}

.contact-inner h2 {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-inner p {
    color: rgba(240,239,239,0.75);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.25rem;
}

.contact-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.85rem 1.75rem;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    text-shadow: none;
    transition: var(--transition);
}
.contact-btn.linkedin {
    background: #0077B5;
    color: #fff;
}
.contact-btn.linkedin:hover {
    background: #005f91;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,119,181,0.3);
}
.contact-btn.github {
    background: rgba(20,28,20,0.8);
    color: var(--text-main);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}
.contact-btn.github:hover {
    border-color: var(--green-main);
    color: var(--green-main);
    transform: translateY(-2px);
}

/* ========================================
   FOOTER
======================================== */
.footer {
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-soft);
    color: var(--text-muted);
    font-size: 0.82rem;
    background: rgba(10, 14, 10, 0.5);
    backdrop-filter: blur(4px);
}

/* ========================================
   RESPONSIVE
======================================== */

/* Tablets */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .stat-card { flex: 1 1 140px; }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .hero-scroll-hint { display: none; }

    .projects-grid { grid-template-columns: 1fr; }
    .card-wide { grid-column: 1; max-width: 100%; }

    .edu-timeline { padding-left: 1.5rem; }
}

/* Mobile pequeño */
@media (max-width: 480px) {
    .hero h1 { letter-spacing: 0.01em; }
    .hero-cta { flex-direction: column; }
    .btn-primary, .btn-ghost { text-align: center; width: 100%; }
    .about-stats { flex-direction: column; }
    .skills-grid { grid-template-columns: 1fr; }
    .contact-links { flex-direction: column; align-items: center; }
    .contact-btn { width: 100%; justify-content: center; }
}