* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background-color: #0b1220;
    color: #e5e7eb;
    line-height: 1.7;
}

/* BOTÓN VOLVER */
.back-btn {
    position: fixed;
    top: 25px;
    left: 25px;
    padding: 10px 18px;
    background: #0f172a;
    color: #ffffff;
    text-decoration: none;
    border-radius: 30px;
    border: 1px solid #22c55e;
    transition: 0.3s ease;
    z-index: 999;
}

.back-btn:hover {
    background: #22c55e;
    box-shadow: 0 10px 25px rgba(34, 197, 94, 0.5);
}

/* HERO */
.hero {
    padding: 90px 20px;
    background: linear-gradient(180deg, #020617, #0b1220);
}

.hero-content {
    max-width: 1100px;
    margin: auto;
    text-align: center;
}

.hero h1 {
    font-size: 2.7rem;
    color: #22c55e;
}

.hero-subtitle {
    margin: 25px 0 35px;
    color: #d1d5db;
}

.hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.hero-tags span {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid #22c55e;
}

.hero-img {
    width: 100%;
    max-width: 850px;
    border-radius: 18px;
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.35);
}

/* CONTENIDO */
.project-detail {
    padding: 90px 20px;
}

.project-wrapper {
    max-width: 1100px;
    margin: auto;
}

.project-wrapper h2 {
    color: #22c55e;
    margin-bottom: 25px;
    font-size: 2.2rem;
}

.project-block {
    display: flex;
    gap: 40px;
    align-items: center;
    margin: 70px 0;
    flex-wrap: wrap;
}

.project-block.reverse {
    flex-direction: row-reverse;
}

.project-text {
    flex: 1;
}

.project-text h3 {
    color: #86efac;
    margin-bottom: 15px;
}

.project-text ul {
    margin-left: 20px;
    margin-top: 15px;
}

.project-block img {
    flex: 1;
    max-width: 520px;
    border-radius: 16px;
    box-shadow: 0 0 25px rgba(0,0,0,0.7);
}

.project-closing {
    margin-top: 70px;
    padding: 30px;
    background: #020617;
    border-left: 4px solid #22c55e;
    border-radius: 12px;
}