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

:root {
    --bg: #0d0d0f;
    --bg2: #13131a;
    --bg3: #1a1a24;
    --accent: #7c6af5;
    --accent-dim: rgba(124, 106, 245, 0.12);
    --accent-border: rgba(124, 106, 245, 0.3);
    --text: #e8e8f0;
    --text-muted: #7a7a8e;
    --text-faint: #3d3d50;
    --border: rgba(255, 255, 255, 0.07);
    --font-body: 'Sora', sans-serif;
    --font-mono: 'DM Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 4vw;
    background: rgba(13, 13, 15, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.82rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: lowercase;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

/* ── SECTIONS ── */
section {
    max-width: 860px;
    margin: 0 auto;
    padding: 7rem 4vw 4rem;
}

section:first-of-type {
    padding-top: 10rem;
}

/* ── HERO ── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 8rem;
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 32px;
    height: 1px;
    background: var(--accent);
}

.hero h1 {
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    color: var(--accent);
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 540px;
    line-height: 1.75;
    margin-bottom: 3rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 0.88rem;
    font-family: var(--font-body);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: #6a58e8;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text);
}

.scroll-hint {
    margin-top: 5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
}

.scroll-line {
    width: 48px;
    height: 1px;
    background: var(--text-faint);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent);
    animation: slide 2s ease-in-out infinite;
}

@keyframes slide {
    0% {
        left: -100%;
    }

    50% {
        left: 0;
    }

    100% {
        left: 100%;
    }
}

/* ── SECTION TITLES ── */
.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    line-height: 1.2;
}

/* ── ABOUT ── */
.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    font-size: 1rem;
    line-height: 1.8;
}

.about-text p strong {
    color: var(--text);
    font-weight: 500;
}

.skills-block {
    padding-top: 0.5rem;
}

.skills-group {
    margin-bottom: 2rem;
}

.skills-group-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 0.75rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--accent-border);
    border-radius: 4px;
    padding: 0.25rem 0.65rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.about-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.75rem;
    flex-wrap: wrap;
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 0.45rem 1rem;
    border-radius: 5px;
    text-decoration: none;
    transition: color 0.2s, border-color 0.2s;
}

.about-link:hover {
    color: var(--accent);
    border-color: var(--accent-border);
}

/* ── PROJECTS ── */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.project-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: start;
    transition: border-color 0.25s, background 0.25s;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent);
    transition: height 0.3s ease;
}

.project-card:hover {
    border-color: var(--accent-border);
    background: var(--bg3);
}

.project-card:hover::before {
    height: 100%;
}

.project-number {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-faint);
    margin-bottom: 0.75rem;
}

.project-title {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.project-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.stack-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-faint);
    border: 1px solid var(--text-faint);
    border-radius: 3px;
    padding: 0.15rem 0.5rem;
}

.project-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-end;
}

.icon-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
    text-decoration: none;
    transition: color 0.2s;
}

.icon-link:hover {
    color: var(--accent);
}

.icon-link svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── CONTACT ── */
#contacto {
    padding-bottom: 8rem;
}

.contact-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-card::after {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(124, 106, 245, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.contact-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 460px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

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

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1.8rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--bg3);
}

.contact-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
}

.contact-btn.whatsapp:hover {
    border-color: #25d366;
    color: #25d366;
}

.contact-btn.email:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.contact-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ── FOOTER ── */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 4vw;
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
}

.footer-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-faint);
}

/* ── ANIMATIONS ── */
.fade-in {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

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

/* ── MOBILE ── */
@media (max-width: 680px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .project-card {
        grid-template-columns: 1fr;
    }

    .project-links {
        flex-direction: row;
        align-items: flex-start;
    }

    .contact-card {
        padding: 2rem 1.5rem;
    }

    nav {
        padding: 1rem 4vw;
    }

    .nav-links {
        gap: 1.25rem;
    }
}