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

:root {
    --bg-base: #e6f0eb;
    --text-primary: #142924;
    --text-secondary: #334d47;
    --text-tertiary: #5a756f;
    --accent: #2a5c58;
    
    --gradient-1: #bfeadd;
    --gradient-2: #d6e8e2;
    --gradient-3: #c2e0d6;
    --gradient-warm-1: #fae8c0;
    --gradient-warm-2: #f5d0b5;

    --card-bg: rgba(255, 255, 255, 0.65);
    --card-border: rgba(255, 255, 255, 0.8);
    --card-shadow: 0 10px 30px rgba(42, 92, 88, 0.08);

    --font-serif: 'Lora', serif;
    --font-sans: 'Outfit', sans-serif;
}

[data-theme="dark"] {
    --bg-base: #040d0b;
    --text-primary: #e8f5f1;
    --text-secondary: #a0b3ad;
    --text-tertiary: #5d706a;
    --accent: #81c7bf;
    
    --gradient-1: #0e2b25;
    --gradient-2: #153630;
    --gradient-3: #091c19;
    --gradient-warm-1: #4a3b1d;
    --gradient-warm-2: #592f1a;

    --card-bg: rgba(20, 30, 28, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-base);
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.3s ease;
}

h1, h2, h3, .nav-logo {
    font-family: var(--font-serif);
}

/* ===== GRADIENT BACKGROUND ===== */
.gradient-bg {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh; z-index: -1;
    background-image: 
        radial-gradient(at 15% 15%, var(--gradient-1) 0px, transparent 55%),
        radial-gradient(at 80% 20%, var(--gradient-warm-1) 0px, transparent 50%),
        radial-gradient(at 50% 5%, var(--gradient-2) 0px, transparent 55%),
        radial-gradient(at 100% 100%, var(--gradient-1) 0px, transparent 55%),
        radial-gradient(at 20% 85%, var(--gradient-warm-2) 0px, transparent 50%),
        radial-gradient(at 0% 100%, var(--gradient-3) 0px, transparent 60%);
    filter: blur(80px);
    opacity: 1;
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 1.5rem 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.02);
    transition: padding 0.3s ease;
}

.nav-container {
    max-width: 1000px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
}

.nav-logo {
    font-weight: 700; color: var(--text-primary);
    text-decoration: none; font-size: 1.3rem;
}

.nav-links {
    display: flex; gap: 2.5rem; align-items: center;
}

.nav-link {
    text-decoration: none; color: var(--text-secondary);
    font-weight: 500; font-size: 0.95rem;
    position: relative; transition: color 0.3s ease;
    padding: 5px 0;
}

.nav-link:hover, .nav-link.active { color: var(--accent); }

.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 0; height: 2px; background: var(--accent);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.home-icon {
    font-size: 1.1rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.nav-link:hover .home-icon {
    transform: scale(1.2);
}

/* Theme Toggle in Nav */
.theme-btn-nav {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    width: 36px; height: 36px;
    border-radius: 50%;
    font-size: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: var(--card-shadow);
}

.theme-btn-nav:hover {
    transform: rotate(180deg) scale(1.1);
    background: var(--accent);
    color: #fff;
}

/* ===== HERO ===== */
.hero {
    min-height: 85vh;
    display: flex; align-items: center; justify-content: center;
    position: relative;
}



.container-hero {
    max-width: 1000px; margin: 0 auto;
    padding: 0 2rem; text-align: center;
}

.hero-title {
    font-size: clamp(3.5rem, 8vw, 6rem);
    font-weight: 700; line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.hero-description {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    max-width: 650px; margin: 0 auto;
    font-weight: 400;
}

.sparkle {
    position: absolute;
    color: var(--accent);
    opacity: 0.7;
    font-size: 2.5rem;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.sparkle-1 {
    top: 15%; left: 15%;
    animation: float 5s ease-in-out infinite;
}

.sparkle-2 {
    bottom: 20%; right: 15%;
    animation: float 7s ease-in-out infinite reverse;
}

.sparkle:hover {
    transform: scale(1.4) rotate(25deg);
    cursor: default;
    color: var(--text-primary);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===== MARQUEE - COMPACT ===== */
.marquee-section-compact {
    padding: 0 0 6rem;
    width: 100%;
    overflow: hidden;
    margin-top: -5rem;
}

.marquee-wrapper {
    width: 100%; overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    padding: 2rem 0;
}

.marquee-track {
    display: flex; gap: 2.5rem;
    width: max-content;
    animation: scroll 80s linear infinite;
}

.marquee-track:hover { animation-play-state: paused; }

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.work-card {
    width: 360px; flex-shrink: 0;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 24px;
    padding: 2.2rem;
    box-shadow: var(--card-shadow);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
    display: flex; flex-direction: column;
    height: 340px;
    position: relative; overflow: hidden;
}

.work-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(45, 95, 93, 0.15);
    border-color: var(--accent);
}

.work-header {
    display: flex; justify-content: space-between;
    margin-bottom: 1.5rem; align-items: center;
}

.work-lang {
    font-size: 0.75rem; font-weight: 700;
    color: var(--accent);
    background: rgba(45, 95, 93, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
}

.work-stars {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-family: var(--font-sans);
}

.work-title {
    font-size: 1.6rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem; line-height: 1.2;
}

.work-desc {
    font-size: 1rem; color: var(--text-secondary);
    line-height: 1.6; flex-grow: 1; font-weight: 400;
}

.work-footer {
    margin-top: auto;
    font-size: 0.95rem; font-weight: 600;
    color: var(--accent);
    display: flex; align-items: center;
    gap: 0.5rem; opacity: 0.8;
    transition: all 0.3s;
}

.work-card:hover .work-footer {
    opacity: 1; gap: 1rem;
}

/* ===== PROJECTS PAGE ===== */
/* ===== PROJECTS PAGE & HERO ===== */
/* Apply padding to body to prevent content from hiding behind fixed nav */
.projects-page {
    padding-top: 6rem; /* Adjust based on your nav height */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.projects-hero {
    padding: 4rem 1.5rem 2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.projects-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
}

.projects-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: var(--text-on-accent);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.github-link:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/* ===== PROJECTS GRID ===== */
.projects-main {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1; /* Pushes footer down */
}

.projects-grid-dispersed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); /* 320px min for better mobile support */
    gap: 2rem;
    padding-bottom: 4rem;
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading-spinner {
    border: 3px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    border-top: 3px solid var(--accent-color, #007bff);
    width: 30px;
    height: 30px;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Card Animations */
.projects-grid-dispersed .work-card {
    animation: fadeInScale 0.6s ease backwards;
}

/* Staggered delays for a cool effect */
.projects-grid-dispersed .work-card:nth-child(1) { animation-delay: 0.1s; }
.projects-grid-dispersed .work-card:nth-child(2) { animation-delay: 0.2s; }
.projects-grid-dispersed .work-card:nth-child(3) { animation-delay: 0.3s; }
.projects-grid-dispersed .work-card:nth-child(4) { animation-delay: 0.4s; }
.projects-grid-dispersed .work-card:nth-child(5) { animation-delay: 0.5s; }
.projects-grid-dispersed .work-card:nth-child(6) { animation-delay: 0.6s; }
.projects-grid-dispersed .work-card:nth-child(n+7) { animation-delay: 0.7s; }

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ===== ABOUT PAGE ===== */
.about-page {
    padding-top: 8rem;
}

.container-about {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}


.about-hero {
    padding: 4rem 0 6rem;
    text-align: center;
}

.about-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.about-tagline {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.about-location {
    font-size: 1.1rem;
    color: var(--text-tertiary);
}

.about-content-section {
    padding-bottom: 6rem;
}

.about-block {
    margin-bottom: 5rem;
}

.block-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5rem;
}

.block-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* Education Items */
.edu-item {
    background: var(--card-bg); /* MANTENER ESTO */
    padding: 2rem; /* MANTENER ESTO */
    border-radius: 16px; /* MANTENER ESTO */
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent);
    border: 1px solid var(--card-border); 
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;

}

.edu-item:hover {
    transform: translateY(-3px); /* Pequeño efecto hover */
}

.edu-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.5rem;
}

.edu-header h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
}

.edu-date {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    font-weight: 600;
}

.edu-institution {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.edu-details {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Experience Items */
.exp-item {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.exp-item:last-child {
    border-bottom: none;
}

.exp-item h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.exp-company {
    font-size: 1rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.exp-date {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.exp-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.skill-category-box {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--card-border); 
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.skill-category-box:hover {
    transform: translateY(-3px); /* Pequeño efecto hover */
}

.skill-category-box h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-tags span {
    background: rgba(42, 92, 88, 0.1);
    color: var(--accent);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Languages */
.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.lang-item {
    background: var(--card-bg);
    padding: 1.2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;   
}

.lang-item:hover {
    transform: translateY(-3px); /* Pequeño efecto hover */ 
}

.lang-item strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.lang-item span {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

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

.interest-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--card-border); 
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.interest-card:hover {
    transform: translateY(-3px); /* Pequeño efecto hover */
}

.interest-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.interest-card h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
}

.interest-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* CTA */
.about-cta {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-bg);
    border-radius: 24px;
    margin-top: 4rem;
}

.about-cta h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.about-cta p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.btn-cta {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(42, 92, 88, 0.3);
}

/* ===== CONTACT SECTION ===== */
.container-small {
    max-width: 850px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-footer-section {
    padding: 6rem 0;
}

.section-label {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 2.5rem;
    opacity: 0.8;
}


.about-text { 
    font-family: var(--font-serif); /* Serif para el cuerpo de About queda muy bien */
    font-size: 1.6rem; line-height: 1.6; color: var(--text-primary); 
    margin-bottom: 4rem; font-weight: 500;
}

.skills-column {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
    border-top: 1px solid rgba(0,0,0,0.06); padding-top: 3rem;
}
[data-theme="dark"] .skills-column { border-top-color: rgba(255,255,255,0.06); }
.skill-item h3 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 0.4rem; }
.skill-item p { font-size: 0.7rem; letter-spacing: 0.1em; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; }

/* ===== CONTACTO ===== */
.contact-big-text { font-family: var(--font-serif); font-size: 2rem; color: var(--text-primary); margin-bottom: 4rem; max-width: 650px; font-weight: 500;}

.contact-big-text {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 4rem;
    max-width: 650px;
    font-weight: 500;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 6rem;
}

.contact-row {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
}

.contact-row .label,
.footer-links .label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-tertiary);
    margin-bottom: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.contact-row .value {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    padding-bottom: 0.2rem;
    width: fit-content;
    transition: all 0.3s;
}

.contact-row .value:hover {
    border-bottom-color: var(--accent);
    color: var(--accent);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
    transform: translateX(3px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-top: 1px solid rgba(0,0,0,0.05);
    padding-top: 2rem;
}

.copyright p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: 0.3rem;
}

/* ===== ANIMATIONS ===== */
.hidden {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
                transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.fade-in {
    animation: fadeIn 0.8s ease backwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }
.fade-in:nth-child(5) { animation-delay: 0.5s; }

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

/* Loading */
.loading-state {
    text-align: center;
    color: var(--text-tertiary);
    margin: 3rem 0;
}

.loading-spinner {
    width: 30px; height: 30px;
    border: 2px solid var(--accent);
    border-top-color: transparent;
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav { padding: 1rem; }
    .nav-links { gap: 1.5rem; }
    .hero-title { font-size: 3rem; }
    .work-card { width: 300px; }
    .contact-grid { grid-template-columns: 1fr; }
    .projects-grid-dispersed {
        grid-template-columns: 1fr;
    }
    .skills-categories,
    .interests-grid {
        grid-template-columns: 1fr;
    }
}