/* ============================================
   PORTAFOLIO TEO ORTIZ - ESTILOS CSS3
   Diseño minimalista, moderno y completamente responsivo
   ============================================ */

/* Reset y Variables Globales */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de Colores Sofisticada */
    --primary-color: #0f0f23;      /* Azul oscuro profundo */
    --secondary-color: #1a1a2e;    /* Azul oscuro */
    --tertiary-color: #16213e;     /* Azul aún más oscuro */
    --accent-color: #00d4ff;       /* Cian vibrante */
    --accent-light: #7d3aff;       /* Púrpura para contraste */
    --text-light: #f0f0f0;         /* Gris claro para texto */
    --text-muted: #b0b0b0;         /* Gris medio */
    --border-color: #2d2d44;       /* Bordes sutiles */

    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Space Mono', monospace;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transiciones */
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.15s ease-out;
}

/* Body y Estilos Globales */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--primary-color);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 70px;
}

/* Contenedor Genérico */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   NAVEGACIÓN
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-text {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

.contact-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--primary-color) !important;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
}

.contact-btn:hover::after {
    width: 0;
}

/* Menú Toggle Mobile */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(10px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-10px);
}

/* ============================================
   SECCIÓN HERO
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

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

.hero-content {
    z-index: 10;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.accent-text {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Botones */
.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

/* Elementos Flotantes */
.hero-visual {
    position: relative;
    height: 450px;
    width: 100%;
}

.floating-card {
    position: absolute;
    width: 110px;
    height: 110px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(125, 58, 255, 0.2));
    border: 2px solid var(--accent-color);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.15);
}

/* Primera tarjeta: centro-arriba */
.floating-card:nth-child(1) {
    top: 20px;
    left: 50%;
    margin-left: -55px;
    animation: floatCenter 4s ease-in-out infinite;
    z-index: 3;
}

/* Segunda tarjeta: izquierda-abajo */
.floating-card.card-2 {
    bottom: 40px;
    left: 5%;
    animation: floatLeft 5s ease-in-out infinite;
    z-index: 2;
}

/* Tercera tarjeta: derecha-abajo */
.floating-card.card-3 {
    bottom: 40px;
    right: 5%;
    animation: floatRight 5.5s ease-in-out infinite;
    z-index: 1;
}

@keyframes floatCenter {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-30px);
    }
}

@keyframes floatLeft {
    0%, 100% {
        transform: translateX(0px) translateY(0px);
    }
    50% {
        transform: translateX(10px) translateY(-25px);
    }
}

@keyframes floatRight {
    0%, 100% {
        transform: translateX(0px) translateY(0px);
    }
    50% {
        transform: translateX(-10px) translateY(-25px);
    }
}

/* ============================================
   SECCIÓN SOBRE MÍ
   ============================================ */

.about {
    padding: var(--spacing-xl) 0;
    background: var(--primary-color);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    border-radius: 2px;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.bio-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.bio-intro {
    font-size: 1.2rem;
    color: var(--accent-color);
    font-weight: 600;
}

.bio-main {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.bio-closing {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    font-style: italic;
}

/* Habilidades */
.skills-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-category {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(125, 58, 255, 0.08));
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color), var(--accent-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.skill-category:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(125, 58, 255, 0.15));
    border-color: var(--accent-color);
    transform: translateX(5px);
}

.skill-category:hover::before {
    opacity: 1;
}

.skill-category-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(125, 58, 255, 0.1));
    color: var(--text-light);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    border: 1px solid var(--accent-color);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.skill-tag:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

/* ============================================
   SECCIÓN PROYECTOS
   ============================================ */

.projects {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* Filtro de Proyectos */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(45, 45, 68, 0.4);
    border: 2px solid var(--border-color);
    color: var(--text-light);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-primary);
}

.filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.filter-btn.filter-active {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    border-color: transparent;
    color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

.filter-icon {
    font-size: 1.2rem;
}

/* Animación de proyectos */
.project-card {
    animation: fadeIn 0.5s ease-in-out;
}

.project-card.hidden {
    display: none;
    animation: fadeOut 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(10px);
    }
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background: rgba(45, 45, 68, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    backdrop-filter: blur(10px);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    transform: translateY(-15px);
    border-color: var(--accent-color);
    box-shadow: 0 25px 50px rgba(0, 212, 255, 0.2);
    background: rgba(45, 45, 68, 0.4);
}

.project-card:hover::before {
    opacity: 1;
}

.project-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(125, 58, 255, 0.05));
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    transition: var(--transition);
    position: relative;
}

.project-image:hover .placeholder-image {
    transform: scale(1.1) rotate(2deg);
}

.project-card:hover .placeholder-image {
    transform: scale(1.1);
}

.project-content {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.project-description {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
    line-height: 1.6;
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    background: rgba(0, 212, 255, 0.15);
    color: var(--accent-color);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--accent-color);
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.link-btn {
    flex: 1;
    padding: 0.8rem 1rem;
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
}

.link-btn:hover {
    background: var(--accent-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.link-demo {
    border-color: var(--accent-light);
    color: var(--accent-light);
}

.link-demo:hover {
    background: var(--accent-light);
    color: var(--primary-color);
}

/* ============================================
   SECCIÓN CONTACTO
   ============================================ */

.contact {
    padding: var(--spacing-xl) 0;
    background: var(--primary-color);
    text-align: center;
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-content {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(45, 45, 68, 0.5);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    text-decoration: none;
    color: var(--text-light);
    transition: var(--transition);
    min-width: 180px;
    justify-content: center;
}

.contact-link:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-text {
    font-weight: 600;
}

.contact-link.linkedin:hover {
    border-color: #0077b5;
}

.contact-link.github:hover {
    border-color: var(--accent-light);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--tertiary-color);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-text {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.footer-highlight {
    color: var(--accent-color);
    font-weight: 700;
}

.footer-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    opacity: 0.8;
}

/* ============================================
   RESPONSIVE DESIGN - TABLET (768px)
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .navbar .container {
        padding: 0 var(--spacing-md);
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--tertiary-color);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        display: none;
    }

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

    .menu-toggle {
        display: flex;
    }

    .nav-link {
        width: 100%;
        padding: var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .hero-visual {
        display: none;
    }

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

    .bio-text {
        padding-right: 0;
    }

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

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

    .projects-filter {
        gap: var(--spacing-sm);
    }

    .filter-btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }

    .contact-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .contact-link {
        width: 100%;
        min-width: unset;
    }

    .skill-tags {
        gap: var(--spacing-xs);
    }

    .skill-tag {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE (480px)
   ============================================ */

@media (max-width: 480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2.5rem;
        --spacing-xl: 3rem;
    }

    body {
        padding-top: 60px;
    }

    .navbar {
        padding: 0.75rem 0;
    }

    .logo {
        font-size: 1.2rem;
        letter-spacing: 1px;
    }

    .menu-toggle {
        gap: 4px;
    }

    .menu-toggle span {
        width: 22px;
        height: 2.5px;
    }

    .hero {
        padding: var(--spacing-lg) 0;
        min-height: 80vh;
    }

    .hero-title {
        font-size: 1.75rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.7rem;
        margin-bottom: var(--spacing-lg);
    }

    .about {
        padding: var(--spacing-lg) 0;
    }

    .bio-intro {
        font-size: 1.1rem;
    }

    .bio-main {
        font-size: 1rem;
    }

    .bio-closing {
        font-size: 0.95rem;
    }

    .skill-tag {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
    }

    .projects {
        padding: var(--spacing-lg) 0;
    }

    .projects-filter {
        gap: 0.5rem;
        margin-bottom: var(--spacing-lg);
    }

    .filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        flex: 1;
        min-width: auto;
        justify-content: center;
    }

    .filter-icon {
        display: none;
    }

    .project-title {
        font-size: 1.1rem;
    }

    .project-description {
        font-size: 0.9rem;
    }

    .tech-tag {
        font-size: 0.75rem;
        padding: 0.35rem 0.7rem;
    }

    .project-links {
        gap: var(--spacing-xs);
    }

    .link-btn {
        padding: 0.7rem 0.8rem;
        font-size: 0.8rem;
    }

    .contact {
        padding: var(--spacing-lg) 0;
    }

    .contact-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }

    .contact-content {
        gap: var(--spacing-sm);
    }

    .contact-link {
        padding: var(--spacing-md);
        font-size: 0.95rem;
    }

    .contact-icon {
        font-size: 1.3rem;
    }

    .footer {
        padding: var(--spacing-md) 0;
    }

    .footer-text {
        font-size: 0.9rem;
    }

    .footer-subtitle {
        font-size: 0.8rem;
    }
}

/* ============================================
   ANIMACIONES Y EFECTOS
   ============================================ */

@keyframes tagPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes particleFloat {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(var(--tx), var(--ty)) scale(0);
    }
}

/* ============================================
   FIN DE ESTILOS
   ============================================ */