/* ============================================
   PORTFOLIO STYLES
   CSS compartido para todos los HTMLs
   ============================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Colors */
    --primary-dark: #0a0a0a;
    --secondary-dark: #151515;
    --card-bg: #1a1a1a;
    --gray-industrial: #4a4a4a;
    --gray-medium: #666666;
    --gray-light: #999999;
    --white: #f5f5f5;
    --accent-blue: #00d4ff;
    --accent-orange: #ff6b35;
    --grid-color: rgba(0, 212, 255, 0.05);
    
    /* Typography */
    --font-display: 'JetBrains Mono', monospace;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Spacing */
    --spacing-unit: 8px;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-medium: 300ms ease;
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background-color: var(--primary-dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    line-height: 1.8;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: calc(var(--spacing-unit) * 6);
    position: relative;
    display: inline-block;
}

.section-title::before {
    content: '//';
    color: var(--accent-orange);
    margin-right: calc(var(--spacing-unit) * 2);
    opacity: 0.7;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 4);
    position: relative;
    z-index: 1;
}

section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--spacing-unit) * 15) 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    transition: all var(--transition-medium);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1);
}

.btn--primary {
    background: var(--accent-blue);
    color: var(--primary-dark);
}

.btn--primary:hover {
    background: #00b8e6;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn--secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--gray-industrial);
}

.btn--secondary:hover {
    border-color: var(--white);
    transform: translateY(-2px);
}

/* ============================================
   TECH TAGS
   ============================================ */
.tech-tag {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.1);
    padding: calc(var(--spacing-unit) * 0.5) calc(var(--spacing-unit) * 1.5);
    border: 1px solid rgba(0, 212, 255, 0.3);
    display: inline-block;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.nav .container {
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: -0.02em;
}

.nav__menu {
    display: flex;
    gap: calc(var(--spacing-unit) * 5);
}

.nav__link {
    color: var(--gray-light);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width var(--transition-medium);
}

.nav__link:hover {
    color: var(--white);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    z-index: 1001;
}

.nav__hamburger span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-medium);
    display: block;
}

.nav__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav__hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: -20%;
    width: 60%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, transparent 70%);
    transform: skewX(-15deg);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.hero__content {
    max-width: 600px;
}

.hero__image {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.hero__image-placeholder {
    width: 100%;
    height: 100%;
    background: transparent;
    border: 2px dashed rgba(0, 212, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.hero__image-placeholder::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero__image-placeholder span {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--gray-medium);
    z-index: 1;
}

/* Model Viewer Styles */
.hero__image-placeholder model-viewer {
    width: 100%;
    height: 100%;
    min-height: 500px;
    --poster-color: transparent;
    --progress-bar-color: var(--accent-blue);
}

.hero__image model-viewer {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.hero__tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.1);
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
    border: 1px solid rgba(0, 212, 255, 0.3);
    margin-bottom: calc(var(--spacing-unit) * 3);
    letter-spacing: 0.05em;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.hero__title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    line-height: 1.1;
    margin-bottom: calc(var(--spacing-unit) * 3);
    opacity: 0;
    animation: fadeInUp 0.6s ease 0.2s forwards;
}

.hero__highlight {
    color: var(--accent-blue);
    display: block;
}

.hero__subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--gray-light);
    margin-bottom: calc(var(--spacing-unit) * 4);
    font-weight: 400;
    opacity: 0;
    animation: fadeInUp 0.6s ease 0.4s forwards;
}

.hero__description {
    font-size: 1.1rem;
    color: var(--gray-medium);
    max-width: 600px;
    margin-bottom: calc(var(--spacing-unit) * 6);
    opacity: 0;
    animation: fadeInUp 0.6s ease 0.6s forwards;
}

.hero__cta {
    display: flex;
    gap: calc(var(--spacing-unit) * 3);
    opacity: 0;
    animation: fadeInUp 0.6s ease 0.8s forwards;
}

.hero__scroll-indicator {
    position: absolute;
    bottom: calc(var(--spacing-unit) * 4);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease 1.5s forwards, bounce 2s ease-in-out 2s infinite;
}

.hero__scroll-indicator::before {
    content: '↓';
    font-size: 2rem;
    color: var(--accent-blue);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--secondary-dark);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.about__text p {
    color: var(--gray-light);
    margin-bottom: calc(var(--spacing-unit) * 3);
    font-size: 1.05rem;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 6);
    padding-top: calc(var(--spacing-unit) * 6);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat__number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    display: block;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--gray-medium);
    display: block;
}

.about__visual {
    position: relative;
    min-height: 500px;
    height: auto;
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-unit) * 4);
}

.about__visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.about__pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.3) 2px, transparent 2px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.3) 2px, transparent 2px);
    background-size: 100px 100px;
    animation: scrollPattern 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

.about__image {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    max-width: 100%;
}

.about__image img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    border-radius: 8px;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.project-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: calc(var(--spacing-unit) * 4);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-medium);
}

.project-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card__image {
    width: 100%;
    height: 250px;
    background: var(--secondary-dark);
    margin-bottom: calc(var(--spacing-unit) * 3);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.project-card__image::after {
    content: '⚙';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    color: rgba(0, 212, 255, 0.2);
}

.project-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--white);
}

.project-card__section {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.project-card__label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--accent-orange);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.project-card__section p {
    color: var(--gray-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-card__tech {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 1);
    margin-top: calc(var(--spacing-unit) * 3);
}

.project-card__link {
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1);
    color: var(--accent-blue);
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: calc(var(--spacing-unit) * 3);
    transition: gap var(--transition-fast);
}

.project-card__link:hover {
    gap: calc(var(--spacing-unit) * 2);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background: var(--secondary-dark);
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: calc(var(--spacing-unit) * 4);
    transition: border-color var(--transition-medium);
}

.skill-category:hover {
    border-color: rgba(0, 212, 255, 0.3);
}

.skill-category__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 2);
}

.skill-category__icon {
    font-size: 1.5rem;
}

.skill-group {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.skill-group__title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.skill-group__list {
    list-style: none;
}

.skill-group__list li {
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-bottom: calc(var(--spacing-unit) * 1);
    padding-left: calc(var(--spacing-unit) * 2);
    position: relative;
}

.skill-group__list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience__timeline {
    max-width: 900px;
    position: relative;
    padding-left: calc(var(--spacing-unit) * 6);
}

.experience__timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-blue) 0%, var(--accent-orange) 100%);
}

.experience__item {
    position: relative;
    margin-bottom: calc(var(--spacing-unit) * 8);
    padding: calc(var(--spacing-unit) * 4);
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.experience__item::before {
    content: '';
    position: absolute;
    left: calc(var(--spacing-unit) * -7.5);
    top: calc(var(--spacing-unit) * 4);
    width: 12px;
    height: 12px;
    background: var(--accent-blue);
    border: 3px solid var(--primary-dark);
    border-radius: 50%;
}

.experience__period {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.experience__company {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.experience__role {
    color: var(--gray-light);
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.experience__list {
    list-style: none;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.experience__list li {
    color: var(--gray-light);
    margin-bottom: calc(var(--spacing-unit) * 2);
    padding-left: calc(var(--spacing-unit) * 3);
    position: relative;
    line-height: 1.7;
}

.experience__list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
}

.experience__description {
    color: var(--gray-light);
    line-height: 1.7;
}

.experience__tech {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 1);
    padding-top: calc(var(--spacing-unit) * 3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.experience__tech-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    width: 100%;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--secondary-dark);
    text-align: center;
}

.contact__content {
    max-width: 700px;
    margin: 0 auto;
}

.contact__content .section-title {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.contact__subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.contact__description {
    color: var(--gray-light);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.contact__info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 3);
    margin: calc(var(--spacing-unit) * 6) 0;
    padding: calc(var(--spacing-unit) * 4) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact__item {
    text-align: left;
}

.contact__label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.contact__value {
    color: var(--white);
    font-size: 1rem;
    font-weight: 500;
}

.contact__value a {
    color: var(--accent-blue);
    transition: color var(--transition-fast);
}

.contact__value a:hover {
    color: #00b8e6;
}

.contact__note {
    font-size: 0.9rem;
    color: var(--gray-medium);
}

.contact__footer-note {
    font-size: 0.9rem;
    color: var(--gray-medium);
    margin-top: calc(var(--spacing-unit) * 4);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--primary-dark);
    padding: calc(var(--spacing-unit) * 4) 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    font-family: var(--font-display);
    color: var(--gray-medium);
    font-size: 0.85rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    to {
        opacity: 0.6;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes scrollPattern {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(100px, 100px);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

/* Tablet */
@media (max-width: 1024px) {
    .about__grid {
        grid-template-columns: 1fr;
    }
    
    .about__visual {
        height: 350px;
    }
    
    .skills__grid {
        grid-template-columns: 1fr;
    }
    
    .projects__grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 calc(var(--spacing-unit) * 3);
    }

    section {
        padding: calc(var(--spacing-unit) * 10) 0;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--primary-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: calc(var(--spacing-unit) * 4);
        transition: right var(--transition-medium);
        border-left: 1px solid rgba(0, 212, 255, 0.2);
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__hamburger {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }

    .hero__image {
        height: 400px;
        order: -1;
    }

    .hero__cta {
        flex-direction: column;
    }

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

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

    .experience__timeline {
        padding-left: calc(var(--spacing-unit) * 4);
    }
}