:root {
    /* Color Palette */
    --color-bg: #121212;
    --color-bg-alt: #1a1a1a;
    --color-text: #f4f4f4;
    --color-text-muted: #a0a0a0;
    --color-primary: #00f0ff;
    --color-primary-hover: #00c3cc;
    --color-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-main: 'Montserrat', sans-serif;

    /* Layout */
    --max-width: 1200px;
    --transition: 0.3s ease;
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    font-weight: 600;
}

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

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

.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section {
    padding: 40px 0;
    position: relative;
}

.section-dark {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 3px;
    background-color: var(--color-primary);
    bottom: -10px;
    left: 20%;
    border-radius: 2px;
}

/* Typography Helpers */
.highlight {
    color: var(--color-primary);
}

.lead {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

/* Buttons */
.btn-primary,
.btn-primary-outline,
.btn-secondary {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 999px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg);
    box-shadow: 0 4px 14px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
}

.btn-primary-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-primary-outline:hover {
    background-color: rgba(0, 240, 255, 0.1);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-link {
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.btn-link:hover {
    color: var(--color-primary-hover);
    gap: 0.75rem;
    /* micro-interaction */
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 50;
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: padding var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.about-image img {
    width: 90%;
    height: 90%;
    object-fit: cover;
    /* Esto evita que la foto se estire feo */
    border-radius: 8px;
    /* O 50% si quieres que sea circular */
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a:not(.btn-primary-outline) {
    font-size: 0.95rem;
    font-weight: 600;
    position: relative;
}

.nav-links a:not(.btn-primary-outline)::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    background: var(--color-primary);
    bottom: -5px;
    left: 0;
    transition: width var(--transition);
}

.nav-links a:not(.btn-primary-outline):hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 140px;
    padding-bottom: 60px;
    overflow-x: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

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

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

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: slideUp 0.8s ease forwards;
}

.hero-pretitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 1rem;
    animation: slideUp 0.8s ease forwards;
    background: rgba(0, 240, 255, 0.1);
    padding: 0.3rem 1rem;
    border-radius: 999px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    animation: slideUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-about-text {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    animation: slideUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-about-text p {
    margin-bottom: 1rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    animation: slideUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.profile-hero-img {
    width: 100%;
    max-width: 400px;
}

/* Decorative Glow */
.glow-bg {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(18, 18, 18, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 50px rgba(0, 240, 255, 0.05);
}

.image-placeholder svg {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
    opacity: 0.5;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 2.5rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(0, 240, 255, 0.3);
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tags span {
    font-size: 0.8rem;
    background: rgba(0, 240, 255, 0.1);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

/* Skills Section */
.skills-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.skills-category h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.tech-strip-container {
    margin-bottom: 4rem;
}

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

.mb-2 {
    margin-bottom: 2rem;
}

.tech-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    background: var(--color-bg);
    border-radius: 50px;
    border: 1px solid var(--color-border);
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 999px;
    transition: var(--transition);
}

.tech-item:hover {
    background: rgba(0, 240, 255, 0.1);
    transform: translateY(-2px);
}

.tech-icon {
    font-size: 1.5rem;
    filter: grayscale(100%);
    transition: var(--transition);
}

.tech-item:hover .tech-icon {
    filter: grayscale(0%);
}

.tech-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.soft-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.soft-skill-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 2.5rem;
    border-radius: 24px;
    text-align: center;
    transition: var(--transition);
}

.soft-skill-card:hover {
    border-color: var(--color-primary);
    background: rgba(0, 240, 255, 0.05);
}

.soft-skill-card svg {
    width: 40px;
    height: 40px;
    margin: 0 auto 1rem;
}

.soft-skill-card h4 {
    margin-bottom: 0.5rem;
}

.soft-skill-card p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.learning-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: 24px;
}

.learning-card svg {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.learning-card h4 {
    margin-bottom: 0.25rem;
}

.learning-card p {
    color: var(--color-text-muted);
}

/* Contact Section */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text);
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.contact-form {
    background: var(--color-bg-alt);
    padding: 3rem;
    border-radius: 24px;
    border: 2px solid rgba(0, 240, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.contact-form:hover {
    border-color: var(--color-primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 4px;
    font-family: inherit;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.w-100 {
    width: 100%;
}

.form-status {
    margin-top: 1rem;
    font-size: 0.9rem;
    text-align: center;
}

/* Footer */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Animations & Utilities */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Responsive Design */
@media (max-width: 992px) {

    .hero-grid,
    .about-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Hide by default on mobile, can be toggled by JS */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-bg-alt);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 2.2rem;
        text-align: center;
    }

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

    .justify-start {
        justify-content: center;
    }

    .hero-actions {
        flex-wrap: wrap;
    }

    .hero-pretitle {
        font-size: 0.75rem;
        padding: 0.3rem 0.5rem;
        letter-spacing: 1px;
    }

    .project-card,
    .soft-skill-card,
    .learning-card,
    .contact-form,
    .tech-strip {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .skills-layout {
        gap: 2rem;
    }
}