/* ============================================
   PORTFOLIO - Luis Arturo Hernandez
   Welle-inspired Premium Design
   ============================================ */

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

:root {
    --black: #0a0a0a;
    --dark: #141414;
    --gray-900: #1c1c1c;
    --gray-800: #2a2a2a;
    --gray-700: #3d3d3d;
    --gray-500: #6b6b6b;
    --gray-400: #8a8a8a;
    --gray-300: #b3b3b3;
    --gray-200: #d4d4d4;
    --gray-100: #eeeeee;
    --gray-50: #f7f7f7;
    --white: #ffffff;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    --font: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --transition: 0.4s var(--ease);
}

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

body {
    font-family: var(--font);
    background-color: var(--white);
    color: var(--black);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* --- Section Labels & Headings --- */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 20px;
}

.section-label-light { color: var(--gray-400); }

.section-heading {
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.5px;
}

.section-heading em {
    font-style: italic;
    font-weight: 300;
}

.section-heading-light { color: var(--white); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font);
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--radius-full);
}

.btn-primary {
    padding: 16px 32px;
    background-color: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--gray-700);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.btn-ghost {
    padding: 16px 32px;
    background: transparent;
    color: var(--black);
    border: 1.5px solid var(--gray-200);
}

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

.btn-project {
    padding: 12px 24px;
    background: transparent;
    color: var(--black);
    border: 1.5px solid var(--gray-200);
    margin-top: 24px;
}

.btn-project:hover {
    background-color: var(--black);
    color: var(--white);
    border-color: var(--black);
}

/* --- Reveal Animations --- */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 8px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo img {
    height: 28px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-500);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--black);
    background-color: var(--gray-50);
}

.nav-cta {
    background-color: var(--black) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
}

.nav-cta:hover {
    background-color: var(--gray-700) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--black);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px 8px 20px;
    background-color: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 32px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 28px;
}

.hero-line { display: block; }

.hero-cycling {
    display: inline-block;
    font-style: italic;
    font-weight: 300;
    position: relative;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.hero-cycling.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-500);
    line-height: 1.8;
    max-width: 480px;
    margin-bottom: 40px;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 4/5;
    box-shadow: 0 30px 80px rgba(0,0,0,0.1);
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-stats {
    position: absolute;
    bottom: -24px;
    left: -24px;
    display: flex;
    gap: 2px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.stat-item {
    background-color: var(--white);
    padding: 20px 28px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--gray-500);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee-section {
    padding: 28px 0;
    background-color: var(--black);
    overflow: hidden;
}

.marquee-track {
    display: flex;
    width: max-content;
}

.marquee-content {
    display: flex;
    align-items: center;
    gap: 32px;
    animation: marqueeScroll 25s linear infinite;
    padding-right: 32px;
}

.marquee-content span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 2px;
    text-transform: uppercase;
    white-space: nowrap;
}

.marquee-dot {
    width: 6px !important;
    height: 6px;
    background-color: var(--gray-500);
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

@keyframes marqueeScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    padding: 160px 0 120px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.about-lead {
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.7;
    margin-bottom: 20px;
    color: var(--black);
}

.about-body {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 36px;
}

.about-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 32px 0;
    border-top: 1px solid var(--gray-100);
    margin-bottom: 32px;
}

.meta-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 6px;
}

.meta-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--black);
}

.about-social {
    display: flex;
    gap: 12px;
}

.about-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 1px solid var(--gray-200);
    color: var(--gray-500);
    transition: var(--transition);
}

.about-social a:hover {
    background-color: var(--black);
    border-color: var(--black);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.about-images {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 16px;
    height: 380px;
}

.about-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.about-img:hover img {
    transform: scale(1.05);
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 160px 0;
    background-color: var(--black);
    color: var(--white);
}

.services-header {
    margin-bottom: 80px;
    max-width: 600px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-card {
    background-color: var(--gray-900);
    border-radius: var(--radius-lg);
    padding: 36px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.service-card:hover {
    background-color: var(--gray-800);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.service-number {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--gray-500);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.service-img {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 24px;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7) grayscale(30%);
    transition: all 0.6s var(--ease);
}

.service-card:hover .service-img img {
    filter: brightness(0.85) grayscale(0%);
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-tags span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--gray-700);
    color: var(--gray-300);
    transition: var(--transition);
}

.service-card:hover .service-tags span {
    border-color: var(--gray-500);
    color: var(--white);
}

/* ============================================
   PROJECTS
   ============================================ */
.projects {
    padding: 160px 0;
}

.projects-header {
    margin-bottom: 80px;
    max-width: 600px;
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 48px;
    background-color: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.project-card:hover {
    box-shadow: 0 20px 80px rgba(0,0,0,0.06);
}

.project-card-reverse { direction: rtl; }
.project-card-reverse > * { direction: ltr; }

.project-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    height: 420px;
    overflow: hidden;
}

.project-visual img {
    max-height: 100%;
    width: auto;
    max-width: 70%;
    object-fit: contain;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.1));
    transition: transform 0.6s var(--ease);
}

.project-visual-web img {
    max-width: 95%;
    border-radius: var(--radius-sm);
}

.project-card:hover .project-visual img {
    transform: translateY(-8px);
}

.project-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.project-body h3 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.project-body p {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.project-tech span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    padding: 24px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--white);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    border-radius: var(--radius-xl);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.4s var(--ease);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: sticky;
    top: 16px;
    float: right;
    margin: 16px 16px 0 0;
    background: var(--gray-50);
    border: none;
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray-500);
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--black);
}

.modal-header {
    padding: 48px 48px 0;
}

.modal-header h3 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.modal-header p {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 32px;
}

.modal-screens {
    padding: 0 48px;
    overflow-x: auto;
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    scrollbar-width: thin;
    scrollbar-color: var(--gray-300) transparent;
}

.modal-screens img {
    height: 320px;
    width: auto;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.modal-tech {
    padding: 0 48px 48px;
}

.modal-tech h4 {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.modal-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.modal-tech-tags span {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 8px 16px;
    background-color: var(--gray-50);
    border-radius: var(--radius-full);
    color: var(--gray-700);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: 160px 0;
    background-color: var(--black);
    color: var(--white);
}

.contact-inner {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-heading {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.contact-heading em {
    font-weight: 300;
    font-style: italic;
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--gray-400);
    margin-bottom: 60px;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: left;
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 28px;
    background-color: var(--gray-900);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
    transition: var(--transition);
    position: relative;
    color: var(--white);
}

.contact-card:hover {
    border-color: var(--gray-600);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.contact-card-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-top: 8px;
}

.contact-card-value {
    font-size: 0.9rem;
    font-weight: 600;
}

.contact-card-arrow {
    position: absolute;
    top: 24px;
    right: 24px;
    color: var(--gray-500);
    transition: var(--transition);
}

.contact-card:hover .contact-card-arrow {
    color: var(--white);
    transform: translate(3px, -3px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 28px 0;
    background-color: var(--dark);
    border-top: 1px solid var(--gray-900);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
    font-weight: 600;
    font-size: 0.85rem;
}

.footer-brand img {
    height: 22px;
    width: auto;
    filter: invert(1);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--white);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-visual { max-width: 500px; }
    .hero-title { font-size: clamp(2.5rem, 8vw, 4rem); }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .project-card {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px;
    }

    .project-card-reverse { direction: ltr; }
    .project-visual { height: 320px; }

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

@media (max-width: 768px) {
    .container { padding: 0 20px; }

    .navbar.nav-open {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background-color: var(--white);
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        height: 100vh;
        height: 100dvh;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 16px;
        z-index: 999;
    }

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

    .nav-links a {
        font-size: 1.4rem !important;
        padding: 12px 24px !important;
        background: none !important;
        color: var(--black) !important;
    }

    .nav-toggle { display: flex; z-index: 1001; }

    .hero {
        padding-top: 100px;
        min-height: auto;
        padding-bottom: 60px;
    }

    .hero-stats {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: 20px;
    }

    .about, .services, .projects, .contact { padding: 100px 0; }

    .about-images {
        grid-template-columns: 1fr 1fr;
        height: 250px;
    }

    .about-img-3 { display: none; }

    .about-meta { grid-template-columns: 1fr; }

    .project-visual { height: 260px; }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .modal-header { padding: 40px 24px 0; }
    .modal-screens { padding: 0 24px; }
    .modal-screens img { height: 240px; }
    .modal-tech { padding: 0 24px 40px; }
}

@media (max-width: 480px) {
    .hero-title { letter-spacing: -1px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { justify-content: center; width: 100%; }
    .hero-stats { flex-direction: column; }
    .about-images { height: 200px; }
}