/* ============================
    VARIABLES GENERALES
============================ */
:root {
    --accent: #b3f6ff;
    --muted: #e0e0e0;
    --glass-border: rgba(255,255,255,0.2);
    --card-shadow: 0 0 20px rgba(179,246,255,0.2);
}

/* ============================
    FUENTE GENERAL
============================ */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&display=swap');

body {
    margin: 0;
    font-family: 'Orbitron', sans-serif;
    scroll-behavior: smooth;
    background: #0c0c0c;
    color: var(--muted);
    letter-spacing: 1px;
}

/* ============================
    HEADER & NAV
============================ */
header {
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin: 0 20px;
}

nav ul li a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: color 0.3s;
}
nav ul li a:hover {
    color: var(--accent);
}

/* ============================
    SECCIONES GENERALES
============================ */
section {
    min-height: 100vh;
    padding: 80px 20px;
    background: rgba(20,20,20,0.4);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 0 25px rgba(0,0,0,0.4);
}

#inicio {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

footer {
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    border-top: 1px solid var(--glass-border);
    color: var(--muted);
    text-align: center;
    padding: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================
    SOBRE MÍ
============================ */
#sobre-mi {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 10%;
}

.sobre-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

.sobre-texto h2 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.sobre-texto .intro {
    font-size: 1.2rem;
    margin-bottom: 30px;
    line-height: 1.6;
}

.sobre-texto h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #99e0f0;
    text-transform: uppercase;
}

.sobre-texto ul {
    list-style: none;
    padding: 0;
}
.sobre-texto ul li {
    margin-bottom: 12px;
    font-size: 1.1rem;
    line-height: 1.4;
}

.sobre-imagen img {
    max-width: 100%;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s;
}
.sobre-imagen img:hover {
    transform: scale(1.05);
}

@media (max-width: 900px) {
    .sobre-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .sobre-imagen {
        margin-top: 20px;
    }
}

/* ============================
    PORTAFOLIO
============================ */
#portafolio {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 10%;
}

.portafolio-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

.portafolio-texto h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--accent);
    text-transform: uppercase;
}

.portafolio-texto h4 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: #99e0f0;
    font-size: 1.3rem;
    text-transform: uppercase;
}

.portafolio-texto p,
.portafolio-texto ul {
    line-height: 1.6;
    margin-bottom: 15px;
}

.portafolio-imagen img {
    max-width: 100%;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s;
}
.portafolio-imagen img:hover {
    transform: scale(1.05);
}

@media (max-width: 900px) {
    .portafolio-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .portafolio-imagen {
        margin-top: 20px;
    }
}

/* ============================
    HABILIDADES
============================ */
#habilidades {
    text-align: center;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.skill-card {
    background: rgba(20,20,20,0.4);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 30px;
    transition: transform 0.3s, border-color 0.3s;
}
.skill-card h3 {
    margin-bottom: 10px;
    font-size: 20px;
    color: var(--accent);
    text-transform: uppercase;
}
.skill-card p {
    font-size: 24px;
    font-weight: bold;
}
.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

/* ============================
    HERRAMIENTAS
============================ */
.tools-container {
    margin-top: 50px;
    text-align: center;
}
.tools-container h3 {
    color: var(--accent);
    font-size: 1.6rem;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.tools-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    padding: 0;
    list-style: none;
}
.tools-list li {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    color: var(--muted);
    transition: background 0.25s;
}
.tools-list li:hover {
    background: rgba(255,255,255,0.06);
}

/* ============================
    REDES SOCIALES
============================ */
.social-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
    align-items: center;
}
.social-links a {
    display: block;
    width: 220px;
    text-align: center;
    padding: 10px;
    border-radius: 4px;
    font-weight: bold;
    text-decoration: none;
    transition: 0.3s;
    color: var(--muted);
    border: 1px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(3px);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.social-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255,255,255,0.1);
}

/* ============================
    VIDEO DE FONDO
============================ */
#bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    pointer-events: none;
}

/* ============================
    BOTONES & FORMULARIOS
============================ */
.cv-button,
#nueva-frase,
#contact-form button,
#theme-toggle {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.3);
    color: var(--accent);
    text-transform: uppercase;
    cursor: pointer;
    letter-spacing: 1px;
    border-radius: 4px;
    backdrop-filter: blur(3px);
    transition: background 0.3s, border-color 0.3s;
}
.cv-button:hover,
#nueva-frase:hover,
#contact-form button:hover,
#theme-toggle:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--accent);
}

.cv-button {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 20px;
    text-decoration: none;
}

/* Botón modo oscuro/claro */
#theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 8px 12px;
    font-size: 18px;
    z-index: 1100;
}

/* Formulario */
#contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 500px;
    margin: 40px auto 20px;
}
#contact-form input,
#contact-form textarea {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    color: var(--muted);
    padding: 12px;
    border-radius: 4px;
    font-family: inherit;
    letter-spacing: 1px;
}
#contact-form input::placeholder,
#contact-form textarea::placeholder {
    color: #bbb;
}

/* ============================
    FRASES ALEATORIAS
============================ */
#frases {
    text-align: center;
    padding: 80px 10%;
}
.frase-box {
    margin: 30px auto;
    max-width: 700px;
    padding: 20px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    backdrop-filter: blur(6px);
}
#frase-aleatoria {
    font-size: 1.6rem;
    line-height: 1.5;
    color: var(--accent);
    text-shadow: 0 0 10px rgba(179,246,255,0.3);
    opacity: 0;
    transition: opacity 0.8s ease;
}
#frase-aleatoria.fade-in {
    opacity: 1;
}
#nueva-frase {
    padding: 12px 24px;
}

/* ============================
    LOGROS
============================ */
#logros {
    text-align: center;
    padding: 80px 10%;
    background: rgba(20,20,20,0.4);       /* mismo fondo que otras secciones */
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 0 25px rgba(0,0,0,0.4);
}
.logros-container {
    max-width: 1000px;
    margin: 30px auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.logro-card {
    background: rgba(20,20,20,0.45);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 30px 20px;
    box-shadow: var(--card-shadow);
    transition: transform 0.25s;
}
.logro-card:hover { transform: translateY(-6px); }
.logro-num {
    font-size: 2.6rem;
    color: var(--accent);
    margin: 10px 0 6px;
}
.logro-label {
    font-size: 1rem;
    color: var(--muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ============================
    CTA FINAL
============================ */
#cta-final {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(180deg, rgba(12,12,12,0.7), rgba(0,0,0,0.8));
}
.cta-container h2 {
    color: var(--accent);
    font-size: 2rem;
    margin-bottom: 14px;
    text-transform: uppercase;
}
.cta-container p {
    font-size: 1.2rem;
    color: var(--muted);
    margin-bottom: 30px;
}
#cta-final .cv-button {
    font-size: 1rem;
    padding: 14px 28px;
}

/* ============================
    MODO CLARO
============================ */
body.light-mode {
    background: #f4f4f4;
    color: #111;
}
body.light-mode header,
body.light-mode footer,
body.light-mode section {
    background: rgba(255,255,255,0.7);
    border-color: rgba(0,0,0,0.1);
    color: #111;
}
body.light-mode nav ul li a {
    color: #111;
}
body.light-mode .cv-button,
body.light-mode #contact-form input,
body.light-mode #contact-form textarea,
body.light-mode #contact-form button,
body.light-mode #theme-toggle {
    border-color: rgba(0,0,0,0.3);
    color: #111;
}